CN111877344A - Old pipe pile breaking method - Google Patents
Old pipe pile breaking method Download PDFInfo
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- CN111877344A CN111877344A CN202010587873.2A CN202010587873A CN111877344A CN 111877344 A CN111877344 A CN 111877344A CN 202010587873 A CN202010587873 A CN 202010587873A CN 111877344 A CN111877344 A CN 111877344A
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- 238000010276 construction Methods 0.000 claims abstract description 27
- 238000005553 drilling Methods 0.000 claims description 39
- 239000002893 slag Substances 0.000 claims description 9
- 239000002689 soil Substances 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 5
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 5
- 241001330002 Bambuseae Species 0.000 abstract description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 5
- 239000011425 bamboo Substances 0.000 abstract description 5
- 230000011218 segmentation Effects 0.000 abstract description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 208000004350 Strabismus Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
- E02D9/02—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof by withdrawing
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention relates to the technical field of building construction, and discloses a method for breaking old pipe piles, which comprises the following steps: measuring and paying off, and positioning the pile position of the old pipe pile; acquiring the diameter of the old pipe pile, and burying a steel pile casing around the old pipe pile; chiseling the old pipe pile in the steel casing; and pulling out the steel casing, and backfilling the pile hole. In this work progress, the steel protects a bottom plate structure of a section of thick bamboo to old basement to this realization is broken away the segmentation of old tubular pile, greatly reduced to old building tubular pile clear away the degree of difficulty of construction, and have better security.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a method for breaking old pipe piles.
Background
Along with the excessive development of land resources, the urban land area is gradually tense, and the land resources capable of being newly developed are less and less, so that more and more projects are provided for rebuilding or expanding old buildings.
Before the construction of old and new building sites, the construction of the foundation pit enclosure and the pile foundation of the new building is convenient, obstacles are swept away for the subsequent engineering construction of the new building, the underground old enclosure and the remained engineering piles are cleaned besides the overground part of the old building, and therefore the construction problem of pulling out the underground old engineering piles of the building is involved.
The construction mode of pulling out by force is adopted to prior art more, adopts powerful engineering stake to pull out equipment implementation to pull out by force promptly, and the problem that exists is because the mechanical properties of engineering stake is that compressive property is greater than tensile property far away, pulls out by force not only easily leads to the engineering stake to pull out absolutely, pulls out the stake with high costs, can cause the destruction to the structure of bottom plate when pulling out the old engineering stake that sets up the basement moreover, and the construction degree of difficulty is high.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the old pipe pile breaking method can protect the structure of the basement.
In order to solve the technical problem, the invention provides an old pipe pile breaking method, which comprises the following steps: measuring and paying off, and positioning the pile position of the old pipe pile; acquiring the diameter of the old pipe pile, and burying a steel pile casing around the old pipe pile; chiseling the old pipe pile in the steel casing; and pulling out the steel casing, and backfilling the pile hole.
As a preferred scheme, in the step of measuring, paying off and positioning the pile position of the old tubular pile, the method specifically comprises the following steps: and measuring the pile position of the old tubular pile, which influences the construction of the new tubular pile, by paying off according to the plane position of the old tubular pile.
Preferably, the step of obtaining the diameter of the old tubular pile and burying the steel casing around the old tubular pile comprises: judging whether the pile position of the old tubular pile is completely positioned in the construction range of the new tubular pile or not according to the construction range of the new tubular pile,
if so, opening a hole on the bottom plate according to the size of the hole of the new tubular pile;
if not, expanding the opening size along the pile position direction of the old tubular pile, covering and surrounding the pile position of the old tubular pile, and opening a hole on the bottom plate according to the expanded opening size;
and hoisting the vibration hammer by adopting a crawler crane, and vibrating the vibration hammer into the steel casing along the open hole of the bottom plate.
As a preferred scheme, in the step of chiseling the old tubular pile in the steel casing, the method specifically comprises the following steps: utilize the rotary drilling machine control drill bit along old tubular pile drilling down, through the positive reverse rotation of drill bit is in order to break the concrete pile body of old tubular pile works as when the drill bit creeps into and predetermines the degree of depth, takes out drill bit and clearance disintegrating slag, the controlate again the drill bit drills down, so reciprocal, until accomplishing the chisel of old tubular pile removes.
Preferably, the diameter of the drill bit is larger than that of the old tubular pile and smaller than that of the steel casing.
As preferred scheme, the drill bit includes a shaft section of thick bamboo, fixed plate and connector, the connector is located the top of a shaft section of thick bamboo, the bottom of a shaft section of thick bamboo is equipped with the first tooth that bores of a plurality of, each the end of the first tooth that bores makes up into the ring working face, the fixed plate is located the inside of a shaft section of thick bamboo, the fixed plate is equipped with a plurality of second and bores the tooth, each the end of second brill tooth makes up into circular working face, the ring working face is located circular working face's below.
As a preferred scheme, in the step of chiseling the old tubular pile in the steel casing, the method specifically comprises the following steps: drilling side holes in the soil body around the old tubular pile, inserting a splitting rod into the side holes, utilizing the splitting rod to split the top of the old tubular pile, chiseling the old tubular pile from top to bottom in a segmented mode, and cleaning broken slag.
As a preferred scheme, in the step of chiseling the old tubular pile in the steel casing, the method specifically comprises the following steps: drilling side hole is opened to the soil body around old tubular pile, and makes the side hole extends to at the bottom of the stake of old tubular pile, will get in the hook extremely the bottom in side hole is opened the couple is in order to catch on at the bottom of the stake of old tubular pile, utilizes hydraulic jack will the couple is upwards drawn, will old tubular pile upwards pulls out.
As a preferred scheme, in the step of drilling the side holes in the soil around the old pipe pile, the method specifically comprises the following steps: adopt low strain detector to detect earlier the degree of depth of old tubular pile is in order to confirm the drilling depth of side hole utilizes geological drilling machine to creep into to the lower side from the top to the bottom to utilize double-barrelled jet grouting stake machine limit to creep into and rinse the drilling, until drilling to the drilling depth of side hole.
Preferably, in the step of pulling out the steel casing and backfilling the pile hole, the step specifically comprises: and (3) hoisting a 135Kw zero-current started vibration hammer by using a 180T crawler crane, pulling out the steel casing in a vibration mode, and backfilling the pile hole by using backfilled sand or cement paste.
Compared with the prior art, the old pipe pile breaking method provided by the invention has the beneficial effects that:
the method comprises the steps of measuring and paying off an old building, positioning a pile position where an old pipe pile needs to be pulled out, burying a steel protection cylinder around the old pipe pile according to the diameter of the old pipe pile to surround the old pipe pile, chiseling the old pipe pile in the steel protection cylinder, protecting a bottom plate structure of an old basement by the steel protection cylinder in the process, pulling out the steel protection cylinder, and backfilling pile holes, so that the old pipe pile is broken, the difficulty of removing and constructing the old building pipe pile is greatly reduced, and the method has high safety.
Drawings
Fig. 1 is a block flow diagram of an old pipe pile removing method according to a preferred embodiment of the present invention.
Fig. 2 is a schematic top view of a drill head to which the old tubular pile removing method according to the preferred embodiment of the present invention is applied.
Fig. 3 is a schematic sectional view of a drill bit to which the old tubular pile removing method according to the preferred embodiment of the present invention is applied.
Fig. 4 is a perspective view of a drill bit to which the old tubular pile removing method according to the preferred embodiment of the present invention is applied.
Fig. 5 is another perspective view of a drill bit to which the old tubular pile removing method according to the preferred embodiment of the present invention is applied.
Fig. 6 is a schematic diagram illustrating the positions of the side holes in the old tubular pile removing method according to the preferred embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a splitting bar to which the old tubular pile removing method according to the preferred embodiment of the present invention is applied.
In the figure:
10. a drill bit; 11. a shaft cylinder; 12. a fixing plate; 13. a connector; 14. a first drill tooth; 15. a second drill tooth; 16. an accommodating chamber; 17. a connecting plate; 18. a through hole;
20. old tubular piles;
30. a steel casing;
40. a side hole;
50. the rod is split.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "connected," "fixed," and the like are used in a broad sense, and for example, the terms "connected," "connected," and "fixed" may be fixed, detachable, or integrated; the connection can be mechanical connection or welding connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1, a preferred embodiment of the present invention provides an old tubular pile demolishing method, including the steps of: measuring and paying off, and positioning the pile position of the old tubular pile 20; acquiring the diameter of the old tubular pile 20, and burying a steel pile casing 30 around the old tubular pile 20; chiseling the old tubular pile 20 in the steel casing 30; and pulling out the steel casing 30 and backfilling the pile hole.
Old tubular pile abolishes method based on foretell technical characteristic measures the unwrapping wire to old building, fixes a position and need extract the pile position of old tubular pile 20, according to old tubular pile 20's diameter bury a steel pile casing 30 around old tubular pile 20 underground to surround old tubular pile 20 chiseling in the steel pile casing 30 old tubular pile 20, at this in-process, steel pile casing 30 protects the bottom plate structure of old basement, will at last steel pile casing 30 is extracted to backfill the stake hole, with this realization to the abolishing of old tubular pile 20, greatly reduced the degree of difficulty of construction is clear away to old building tubular pile to have better security.
In this embodiment, in the step of measuring, paying off, and positioning the pile position of the old tubular pile 20, specifically: and measuring the pile position of the old tubular pile 20 influencing the construction of the new tubular pile by paying off according to the plane position of the old tubular pile 20. After the measurement control points provided by the rechecking construction unit meet the requirements, the pile positions of the old tubular piles 20 influencing the construction of the new pile foundation are measured according to the plane positions of the new pile foundation and the old tubular piles 20.
In this embodiment, the step of obtaining the diameter of the old tubular pile 20 and burying the steel casing 30 around the old tubular pile 20 specifically includes: judging whether the pile position of the old tubular pile 20 is completely positioned in the construction range of the new tubular pile or not according to the construction range of the new tubular pile; if so, opening a hole on the bottom plate according to the size of the hole of the new tubular pile; if not, expanding the opening size along the pile position direction of the old tubular pile 20, covering and surrounding the pile position of the old tubular pile 20, and opening a hole on the bottom plate according to the expanded opening size; and hoisting the vibration hammer by adopting a crawler crane, and vibrating the vibration hammer into the steel casing 30 along the open hole of the bottom plate. Namely, the opening of the bottom plate can meet the opening requirement of the old tubular pile 20 and also can meet the opening requirement of the new tubular pile.
In this embodiment, the step of chiseling the old tubular pile 20 in the steel casing 30 specifically includes: utilize the rotary drilling machine to control drill bit 10 along old tubular pile 20 creeps into downwards, through the forward reverse rotation of drill bit 10 is in order to break old tubular pile 20's concrete pile body works as when drill bit 10 creeps into when predetermineeing the degree of depth, takes out drill bit 10 and clearance disintegrating slag, the controlate again drill bit 10 creeps into downwards, so reciprocal, until accomplishing old tubular pile 20's chisel removes. Through carrying out the segmentation breakage to old tubular pile 20, construction convenience and greatly reduced construction cost.
Wherein, the diameter of drill bit 10 is greater than the diameter of old tubular pile 20, and is less than the diameter of steel casing 30 is in order to guarantee that steel casing 30 breaks whole old tubular pile 20. Specifically, as shown in fig. 2 to 5, the drill bit 10 includes a shaft barrel 11, a fixing plate 12 and a connector 13, the connector 13 is located the top end of the shaft barrel 11, the bottom end of the shaft barrel 11 is provided with a plurality of first drill teeth 14, each the end of the first drill teeth 14 is combined into a circular working surface, the fixing plate 12 is located inside the shaft barrel 11, the fixing plate 12 is provided with a plurality of second drill teeth 15, each the end of the second drill teeth 15 is combined into a circular working surface, and the circular working surface is located below the circular working surface.
Utilize connector 13 is connected with the machine of digging soon, realizes that drive drill bit 10 is rotatory, through first brill tooth 14 contacts with the bottom plate earlier, and the ring channel can be drilled out to the ring working face of its formation, right drill bit 10 plays the guide effect, avoids creeping into the in-process and squints, the rethread circular working face that tooth 15 formed is bored to the second carries out the breakage to old tubular pile 20, and the old tubular pile 20 is chiseled out in the segmentation, has better stability and security, uses with current quick-witted integration of digging soon, can adopt not the 10 specifications of drill bit of equidimension to be under construction. Therefore, special pile pulling equipment is not required to be additionally arranged, the holding cost, the leasing cost and the transition cost for pulling out the old tubular pile 20 are reduced, the tubular pile can be taken at any time, and the construction cost is greatly reduced.
In this embodiment, as shown in fig. 2 and 4, the ends of two adjacent first drilling teeth 14 are arranged in opposite directions, one end of one first drilling tooth 14 faces the outer side of the shaft barrel 11, and the other end of the other first drilling tooth 14 faces the inner side of the shaft barrel 11, and the area of the working surface of the circular ring is enlarged by using the placing position of the first drilling tooth 14, so that the circular ring which is dug out can accommodate the shaft barrel 11, and the first drilling tooth 14 with a smaller diameter can be adopted, so that the first drilling tooth 14 can be easily drilled and broken. The first drill teeth 14 are distributed in a circumferential array, and the second drill teeth 15 are distributed in a linear array.
In order to improve the crushing efficiency of the old pipe pile 20, the number of the fixing plates 12 is two or more, in this embodiment, the number of the fixing plates 12 is two, and the fixing plates are combined into a cross-shaped structure, one end of each fixing plate 12 is connected with the inner wall of the shaft barrel 11, and the other end of each fixing plate 12 is connected with each other and is located at the center of the shaft barrel 11, so that each second drilling tooth 15 forms a circular working surface.
Further, the axial of first brill tooth 14 the axial of second brill tooth 15 with fixed plate 12 sets up towards same direction of rotation slope, and is just unified towards clockwise or anticlockwise, and the drill bit 10 of being convenient for creeps into and breaks, works as the drill bit 10 blocks when creeping into, but reverse direction drive drill bit 10 makes first brill tooth 14 or second brill tooth 15 breaks away from the screens point, and the positive direction drive again drill bit 10 creeps into and breaks, so relapse to the realization is to the abolishing of old tubular pile 20, wherein, the axial of first brill tooth 14 the axial of second brill tooth 15 with the fixed plate 12 is 30 to 80 for the inclination angle scope of horizontal plane.
In this embodiment, an accommodating cavity 16 for accommodating crushed slag is formed between the connecting head 13 and the fixing plate 12, and after the old pipe pile 20 is crushed by the second drilling teeth 15, the old pipe pile can quickly enter the accommodating cavity 16 through the guide of the fixing plate 12 which is obliquely arranged.
In this embodiment, as shown in fig. 2 and 3, the top of axle tube 11 is equipped with connecting plate 17, connector 13 is located on connecting plate 17, is convenient for connector 13 control axle tube 11 rotates, connector 13 is equipped with the annular spread groove that is connected with the rotary drilling machine, connecting plate 17 be equipped with a plurality ofly with hold the communicating through-hole 18 in chamber 16, the accessible through-hole 18 is observed hold the inside condition in chamber 16, when the disintegrating slag is full of when holding chamber 16, promote drill bit 10 clears up the disintegrating slag.
In this embodiment, the circular ring working surface is parallel to the circular working surface, so that the stress on each first drill tooth 14 and each second drill tooth 15 is more balanced. First brill tooth 14 with be welded connection between the axle tube 11, second brill tooth 15 with be welded connection between the fixed plate 12, it is convenient to make, and low in production cost, and construction unit can be according to the actual conditions on building site, right the drill bit 10 improves, the outer diameter size of the old tubular pile 20 that also obtains in advance selects suitable specification the axle tube 11 makes into the drill bit 10, generally speaking, the diameter of axle tube 11 need be greater than the diameter of old tubular pile 20.
In this embodiment, the shaft tube 11 is a cylinder, the first drill teeth 14 are welded along the edge of the shaft tube 11, the fixing plate 12 is a strip-shaped plate, and the second drill teeth 15 are welded along the edge of the fixing plate 12.
As another equivalent embodiment, as shown in fig. 6 and 7, in the step of chiseling the old tubular pile 20 in the steel casing 30, the following steps may be further performed: the method comprises the steps of drilling a side hole 40 annularly arranged on the soil body around an old tubular pile 20, enabling the aperture of the side hole to be larger than the diameter of a splitting rod 50 by a few centimeters, inserting the splitting rod 50 into the side hole 40, starting an oil pump, utilizing a conical head of the splitting rod 50 to split the old tubular pile 20, chiseling the old tubular pile 20 from top to bottom in a segmented mode, cleaning broken slag, taking out the splitting rod 50 after chiseling the whole old tubular pile 20, and conducting repeated operation construction on a next hole.
As another equivalent embodiment, referring to fig. 6, in the step of chiseling the old tubular pile 20 in the steel casing 30, specifically: drilling edge hole 40 is opened to the soil body around old tubular pile 20, and makes edge hole 40 extends to at the bottom of the stake of old tubular pile 20, adopt the drilling rod to put into purpose-made couple extremely the bottom of edge hole 40 is opened the couple is in order to catch on at the bottom of the stake of old tubular pile 20, slowly exerts force for the couple catches on the bottom of old tubular pile 20 completely, and it will to recycle hydraulic jack the couple is upwards drawn, will old tubular pile 20 upwards plays and pulls out. When the old tubular pile 20 is pulled out, the equipment which is used for pulling and cutting the old tubular pile 20 is arranged under the limitation of height, so that safety accidents are avoided.
In the two equivalent embodiments, in the step of drilling the edge hole 40 in the soil around the old tubular pile 20, the following steps are specifically performed: the depth of the old tubular pile 20 is detected by a low-strain detector to determine the drilling depth of the side hole 40, the geological drilling machine is used for drilling from top to bottom, the double-tube rotary jet pile machine is used for drilling from top to bottom and cleaning, and the cleaning water pressure is not more than 1MPa until the drilling depth of the side hole 40 is drilled. The side holes 40 need to be cleaned, mud scraps cannot be left on the hole walls, and the side holes are cleaned once by high-pressure rotary spraying after cleaning is completed if necessary, so that the phenomenon that the hooks or the splitting rods 50 cannot fall to the bottom of the old tubular pile 20 is avoided.
In this embodiment, in the step of pulling out the steel casing 30 and backfilling the pile hole, the following steps are specifically performed: and a 180T crawler crane is adopted to lift a vibrating hammer started by 135Kw zero current, the steel casing 30 is pulled out in a vibrating mode, and backfilling sand or cement paste is utilized to backfill the pile hole, so that the steel casing 30 is stably pulled out, and the old tubular pile 20 is broken.
To sum up, the method for removing the old pipe pile provided by the embodiment of the invention has the following advantages: (1) when the old pipe pile 20 of the old basement is broken, the steel casing 30 is used for protecting the old basement, and the difficulty of removing the old building pipe pile is reduced; (2) determining the opening size of the bottom plate according to the position plane of the new pile and the old pile, and completing the construction of the new engineering pile after the old tubular pile 20 is removed; (3) the old tubular pile 20 is chiseled in sections in a crushing or hooking mode, and the construction safety performance is high.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A method for breaking old pipe piles is characterized by comprising the following steps:
measuring and paying off, and positioning the pile position of the old pipe pile;
acquiring the diameter of the old pipe pile, and burying a steel pile casing around the old pipe pile;
chiseling the old pipe pile in the steel casing;
and pulling out the steel casing, and backfilling the pile hole.
2. The old tubular pile removing method according to claim 1, wherein in the step of measuring, paying off and positioning the pile position of the old tubular pile, the steps are specifically as follows:
and measuring the pile position of the old tubular pile, which influences the construction of the new tubular pile, by paying off according to the plane position of the old tubular pile.
3. The old tubular pile removing method according to claim 2, wherein in the step of obtaining the diameter of the old tubular pile and burying a steel casing around the old tubular pile, the steps are specifically:
judging whether the pile position of the old tubular pile is completely positioned in the construction range of the new tubular pile or not according to the construction range of the new tubular pile,
if so, opening a hole on the bottom plate according to the size of the hole of the new tubular pile;
if not, expanding the opening size along the pile position direction of the old tubular pile, covering and surrounding the pile position of the old tubular pile, and opening a hole on the bottom plate according to the expanded opening size;
and hoisting the vibration hammer by adopting a crawler crane, and vibrating the vibration hammer into the steel casing along the open hole of the bottom plate.
4. The old tubular pile breaking method according to claim 1, wherein in the step of chiseling the old tubular pile in the steel casing, specifically:
utilize the rotary drilling machine control drill bit along old tubular pile drilling down, through the positive reverse rotation of drill bit is in order to break the concrete pile body of old tubular pile works as when the drill bit creeps into and predetermines the degree of depth, takes out drill bit and clearance disintegrating slag, the controlate again the drill bit drills down, so reciprocal, until accomplishing the chisel of old tubular pile removes.
5. The old tubular pile demolishing method of claim 4, wherein the drill bit has a diameter larger than the diameter of the old tubular pile and smaller than the diameter of the steel casing.
6. The old tubular pile breaking method according to claim 4, wherein the drill bit comprises a shaft cylinder, a fixing plate and a connector, the connector is arranged at the top end of the shaft cylinder, a plurality of first drill teeth are arranged at the bottom end of the shaft cylinder, the tail ends of the first drill teeth are combined into a circular working surface, the fixing plate is arranged inside the shaft cylinder, a plurality of second drill teeth are arranged on the fixing plate, the tail ends of the second drill teeth are combined into a circular working surface, and the circular working surface is located below the circular working surface.
7. The old tubular pile breaking method according to claim 1, wherein in the step of chiseling the old tubular pile in the steel casing, specifically:
drilling side holes in the soil body around the old tubular pile, inserting a splitting rod into the side holes, utilizing the splitting rod to split the top of the old tubular pile, chiseling the old tubular pile from top to bottom in a segmented mode, and cleaning broken slag.
8. The old tubular pile breaking method according to claim 1, wherein in the step of chiseling the old tubular pile in the steel casing, specifically:
drilling side hole is opened to the soil body around old tubular pile, and makes the side hole extends to at the bottom of the stake of old tubular pile, will get in the hook extremely the bottom in side hole is opened the couple is in order to catch on at the bottom of the stake of old tubular pile, utilizes hydraulic jack will the couple is upwards drawn, will old tubular pile upwards pulls out.
9. The old pipe pile breaking method according to claim 7 or 8, wherein in the step of drilling the edge holes in the soil around the old pipe pile, the steps are as follows:
adopt low strain detector to detect earlier the degree of depth of old tubular pile is in order to confirm the drilling depth of side hole utilizes geological drilling machine to creep into to the lower side from the top to the bottom to utilize double-barrelled jet grouting stake machine limit to creep into and rinse the drilling, until drilling to the drilling depth of side hole.
10. The old pipe pile demolishing method according to any one of claims 1 to 8, wherein in the step of extracting the steel casing and backfilling the pile hole, specifically:
and (3) hoisting a 135Kw zero-current started vibration hammer by using a 180T crawler crane, pulling out the steel casing in a vibration mode, and backfilling the pile hole by using backfilled sand or cement paste.
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| CN202010587873.2A CN111877344A (en) | 2020-06-24 | 2020-06-24 | Old pipe pile breaking method |
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| CN202010587873.2A CN111877344A (en) | 2020-06-24 | 2020-06-24 | Old pipe pile breaking method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417287A (en) * | 2021-05-26 | 2021-09-21 | 中交二航局第三工程有限公司 | Construction method for removing underground secant pile by full-casing full-slewing drilling machine |
| CN114875916A (en) * | 2022-05-27 | 2022-08-09 | 保利长大工程有限公司 | The method of pulling out the steel sheet pile left over from construction |
| CN119121913A (en) * | 2024-11-06 | 2024-12-13 | 中建八局(日照)建设有限公司 | A construction method for treating pile hole collapse after installation of cast-in-place pile reinforcement cage |
| CN120844582A (en) * | 2025-07-22 | 2025-10-28 | 北京交通大学 | Construction method for removing bridge pile foundation in volcanic ash stratum |
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| JP2017166160A (en) * | 2016-03-15 | 2017-09-21 | 株式会社江機 | Connection structure between bucket and connection casing, and excavated hole backfill method |
| CN108729445A (en) * | 2018-08-13 | 2018-11-02 | 中地君豪建筑工程有限公司 | The method for abolishing the drill bit of waste and old solid pile and abolishing old solid pile and new pile being perfused |
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| JP2007120123A (en) * | 2005-10-27 | 2007-05-17 | Nisshin Kizai Kk | Pile extraction device |
| CN104746519A (en) * | 2015-02-04 | 2015-07-01 | 邵阳学院 | Obstacle clearing construction method |
| JP2017166160A (en) * | 2016-03-15 | 2017-09-21 | 株式会社江機 | Connection structure between bucket and connection casing, and excavated hole backfill method |
| CN108729445A (en) * | 2018-08-13 | 2018-11-02 | 中地君豪建筑工程有限公司 | The method for abolishing the drill bit of waste and old solid pile and abolishing old solid pile and new pile being perfused |
| CN111119180A (en) * | 2019-12-25 | 2020-05-08 | 中铁二局集团有限公司 | Underground pile foundation clearing construction method in complex environment |
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| CN113417287A (en) * | 2021-05-26 | 2021-09-21 | 中交二航局第三工程有限公司 | Construction method for removing underground secant pile by full-casing full-slewing drilling machine |
| CN114875916A (en) * | 2022-05-27 | 2022-08-09 | 保利长大工程有限公司 | The method of pulling out the steel sheet pile left over from construction |
| CN119121913A (en) * | 2024-11-06 | 2024-12-13 | 中建八局(日照)建设有限公司 | A construction method for treating pile hole collapse after installation of cast-in-place pile reinforcement cage |
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