CN116122803B - Drilling inner side direction geological exploration testing device and testing method - Google Patents

Abstract

The invention discloses a borehole inner lateral geological prospecting testing device and a testing method, which relate to the technical field of geological prospecting. The present invention comprises a rotating shaft and a geological exploration main body threaded on one end of the rotating shaft, which facilitates the thread fitting of the geological exploration main body on one end of the rotating shaft, and two detection holes are provided on the outer wall of the geological exploration main body. It is convenient for the pressure sensor to be driven by the lateral probe to move to the inside of the detection hole for detection. In the present invention, the lateral probe is set so that the rotating plate drives the lateral probe to slide in and out of the detection hole under the action of the sliding block, so as to realize the exploration test of the lateral geology through the lateral probe, reducing the The impact of the lateral force of the soil on the bearing capacity of the pile foundation is eliminated, thereby reducing the problem of errors in geological exploration test results.

Description

A testing device and testing method for lateral geological exploration inside a borehole

technical field

The invention belongs to the field of geological exploration, and in particular relates to a testing device and testing method for lateral geological exploration inside a borehole.

Background technique

Geological exploration refers to the use of pressure devices to press the probe rod with the probe into the test soil layer, and through the measurement system to measure the penetration resistance of the soil, some basic physical and mechanical properties of the soil can be determined, such as the deformation modulus of the soil, The allowable bearing capacity of the soil, etc. A probe equipped with a sensor is pressed into the soil at a constant speed. Due to the different hardness and softness of the various soils in the formation, the resistance on the probe is naturally different. The sensor inputs the different penetration resistances through electrical signals. Record it in the recording instrument, and then use the qualitative relationship and statistical correlation between the penetration resistance and the engineering geological characteristics of the soil to obtain the soil profile, provide the bearing capacity of the shallow foundation, select the bearing layer at the pile tip and estimate Single pile bearing capacity and other engineering geological survey purposes.

However, the existing geological exploration tests are generally soil tests in the vertical direction, and no lateral geological exploration tests are carried out, ignoring the influence of the lateral force of the soil on the bearing capacity of the pile foundation, which makes the geological exploration test results prone to errors The problem.

To sum up, the present invention therefore provides a borehole lateral geological exploration testing device and testing method to solve the above problems.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a lateral geological exploration testing device and testing method inside a borehole.

In order to solve the problems of the technologies described above, the present invention adopts the basic idea of technical solution to be:

A lateral geological exploration testing device inside a borehole, comprising a rotating shaft and a geological exploration main body threaded on one end of the rotating shaft, which facilitates the thread fitting of the geological exploration main body on one end of the rotating shaft, and the geological exploration main body There are two detection holes on the outer wall, which facilitates the pressure sensor to be moved to the inside of the detection hole by the lateral probe for detection. The internal rotation of the geological exploration main body is matched with the first The threaded rod facilitates the rotation of the first threaded rod inside the geological exploration main body. Both sides of the first threaded rod are threaded to match the sliding block and the sliding cylinder, which facilitates the sliding block and the sliding cylinder. Sliding on the first threaded rod, the sliding cylinder is located on one side of the detection hole, which facilitates the sliding of the sliding cylinder on one side of the detection hole;

The interior of the geological exploration main body is elastic and slidably fitted with two lateral probes, which facilitates the sliding of the lateral probes inside the geological exploration main body. A pressure sensor is installed on one side of the lateral probe, which facilitates In order to install the pressure sensor on one side of the lateral probe, a rotating plate is rotated between the other side of the lateral probe and the sliding block, which facilitates the rotation of the rotating plate on the side. Rotate fit between the probe and the slider.

Optionally, the inner side wall of the geological exploration main body is provided with four slideways, and the inside of the slideway is slidably fitted with a first positioning block, which facilitates the sliding of the first positioning block inside the slideway, The stability of the first positioning block when sliding is improved, and one side of the first positioning block is installed on the outer wall of the sliding cylinder, which facilitates the installation of one side of the first positioning block On the outer wall of the sliding cylinder, a U-shaped plate is installed on one side of the sliding cylinder, which facilitates the installation of the U-shaped plate on one side of the sliding cylinder, and the U-shaped plate is located at the The inside of the geological exploration main body facilitates the sliding of the U-shaped plate inside the geological exploration main body. A first threaded hole is opened on one side of the U-shaped plate, and the first threaded rod is screwed into the The inside of the first threaded hole is convenient for the first threaded rod to be screwed into the inside of the U-shaped plate through the first threaded hole.

Optionally, a second positioning block is installed inside the geological exploration main body, which facilitates the installation of the second positioning block inside the geological exploration main body, and a slide is provided on one side of the second positioning block. hole, the first threaded rod is located inside the sliding hole, which facilitates the rotation of the first threaded rod to fit inside the second positioning block through the sliding hole, and the interior of the geological exploration main body A motor and two support rods are provided to facilitate the installation of the motor and the support rod inside the geological exploration main body, and one side of the second positioning block is installed at one end of the support rod It is convenient to install the second positioning block on one end of the support rod, and one end of the first threaded rod is installed on the output end of the motor, which facilitates the installation of the first threaded rod On the output end of the motor, both sides of the second positioning block are equipped with a fixed cylinder, which facilitates the installation of the fixed cylinder on one side of the second positioning block, and one end of the fixed cylinder Slidingly fitted with a sliding rod, which facilitates the sliding fit of the sliding rod on one end of the fixed cylinder, improves the stability of the sliding rod when sliding, and one end of the sliding rod is installed on the side of the lateral probe. On one side, it is convenient to install one side of the lateral probe on one end of the sliding rod, and a spring is arranged between one side of the lateral probe and one side of the sliding block, which is convenient In order to ensure that the lateral probe is reset under the action of the spring elasticity, first fixing blocks are installed on both sides of the sliding block, which facilitates the installation of the first fixing block on one side of the sliding block , one side of the first fixed block is equipped with a first fixed rod, which facilitates the installation of the first fixed rod on one side of the first fixed block, and the first end of the rotating plate is provided with The first through hole, the first fixing rod is located inside the first through hole, which facilitates the rotation of the rotating plate to fit on the first fixing rod through the first through hole.

Optionally, two second fixed blocks are installed on one side of the lateral probe, which facilitates the installation of the second fixed block on one side of the lateral probe, and one of the second fixed blocks A second fixed rod is installed on the side, which facilitates the installation of the second fixed rod on one side of the second fixed block. The second end of the rotating plate is provided with a second through hole, and the second The fixed rod is located inside the second through hole, which facilitates the rotation of the rotating plate through the second through hole and fits on the second fixed rod. One end of the geological exploration main body is equipped with a drill bit, and the The other end of the geological exploration main body is provided with a second threaded hole, and one end of the rotating shaft is equipped with a second threaded rod, and the second threaded rod is screwed into the inside of the second threaded hole, which facilitates the second threaded hole. A threaded rod is threadedly fitted inside the geological exploration main body through the second threaded hole.

A borehole lateral geological exploration testing device and testing method, comprising the following steps:

Step 1: Obtain the distribution area and boundary of the pre-drilled hole positions through geophysical geological exploration methods;

Step 2: In the borehole location area obtained in the step 1, use the georesistivity imaging method to perform a deep vertical section on the borehole location area to obtain the geological information of the borehole location;

Step 3: Set the location of the exploratory hole according to the geology information of the drilling location obtained in the step 1 and the step 2, and take samples for detection, and further determine the area range and geological parameters of the drilling location.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art, certainly, implementing any product of the present invention does not necessarily need to reach all advantages described below simultaneously:

The lateral probe is set so that the rotating plate drives the lateral probe to slide in and out of the detection hole under the action of the sliding block, so as to realize the exploration test of the lateral geology through the lateral probe, reducing the soil The impact of the lateral force of the body on the bearing capacity of the pile foundation is reduced, thereby reducing the problem of errors in geological exploration test results.

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Description of drawings

The drawings in the following description are only some embodiments, and those skilled in the art can obtain other drawings according to these drawings without any creative work. in the attached

In the picture:

Fig. 1 is the three-dimensional structure schematic diagram of an embodiment of the present invention;

Fig. 2 is a schematic cross-sectional structure diagram of an embodiment of the present invention;

Fig. 3 is a schematic diagram of the structure at A in Fig. 2;

Fig. 4 is a schematic diagram of the structure at B in Fig. 2;

Fig. 5 is a schematic diagram of the structure at C in Fig. 2;

Fig. 6 is a schematic diagram of the structure at D in Fig. 2;

FIG. 7 is a schematic diagram of the structure at E in FIG. 2 .

In the accompanying drawings, the list of parts represented by each label is as follows:

Geological exploration main body 1, detection hole 101, slideway 102, first threaded rod 103, U-shaped plate 104, sliding cylinder 105, first positioning block 106, second positioning block 107, fixed cylinder 108, sliding rod 109, lateral Probe 110, spring 111, second threaded hole 112, sliding block 113, first fixed block 114, first fixed rod 115, rotating plate 116, second fixed block 117, second fixed rod 118;

Revolving shaft 2, second threaded rod 201;

drill 3.

It should be noted that these drawings and text descriptions are not intended to limit the concept scope of the present invention in any way, but illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments.

Detailed ways

The present invention is described in further detail now in conjunction with accompanying drawing.

Please refer to shown in Fig. 1-7, in the present embodiment, a kind of lateral geological prospecting test device is provided in borehole, comprise rotating shaft 2, the geological prospecting main body 1 that thread fits in the rotating shaft 2 one end, has made things convenient for the geological prospecting main body 1 The thread fits on one end of the rotating shaft 2, and the outer wall of the geological exploration main body 1 is provided with two detection holes 101, which facilitates the movement of the pressure sensor to the inside of the detection holes 101 by the lateral probe 110 for detection. The rotation fits the first threaded rod 103 with opposite threads on both sides, which facilitates the rotation of the first threaded rod 103 inside the geological exploration main body 1. The sliding block 113 and the sliding cylinder 105 slide on the first threaded rod 103, and the sliding cylinder 105 is positioned on one side of the detection hole 101, which facilitates the sliding of the sliding cylinder 105 on one side of the detection hole 101;

The interior of the geological exploration main body 1 is elastic and slidingly fitted with two lateral probes 110, which facilitates the sliding of the lateral probes 110 inside the geological exploration main body 1, and a pressure sensor is installed on one side of the lateral probe 110, which facilitates the pressure The sensor is installed on one side of the lateral probe 110, and a rotating plate 116 is fitted between the other side of the lateral probe 110 and the sliding block 113, which facilitates the rotation of the rotating plate 116 between the lateral probe 110 and the sliding block 113 Cooperate.

When it is necessary to use the geological exploration subject 1, first obtain the distribution area and boundary of the pre-drilled hole position through the geophysical geological prospecting method, and use the georesistivity imaging method to conduct a deep vertical survey of the drilled hole position area. Cut the surface, get the geological information of the drilling position, then place the geological exploration main body 1 in the inside of the drilling, then start the motor, the output end of the motor drives the sliding block 113 and the U-shaped plate 104 to slide through the first threaded rod 103, because the second The direction of threads on both sides of a threaded rod 103 is opposite, so the two sliding blocks 113 are far away from each other, and the two U-shaped plates 104 are far away from each other. The U-shaped plate 104 drives the sliding cylinder 105 to slide inside the geological exploration main body 1. The sliding cylinder 105 drives the A positioning block 106 slides inside the slideway 102, the sliding block 113 drives the lateral probe 110 to slide through the rotating plate 116, and the lateral probe 110 drives the pressure sensor to slide to the inside of the detection hole 101 for detection.

The lateral probe 110 is set so that the rotating plate 116 drives the lateral probe 110 to slide in and out of the detection hole 101 under the action of the sliding block 113, so as to realize the lateral geological exploration through the lateral probe 110 The test has reduced the impact of the lateral force of the soil on the bearing capacity of the pile foundation, thereby reducing the problem that errors are prone to occur in the results of geological exploration tests.

The inner side wall of the geological exploration main body 1 of the present embodiment is provided with four slideways 102, and the inside of the slideway 102 is fitted with a first positioning block 106, which facilitates the sliding of the first positioning block 106 inside the slideway 102 and improves the The stability of the first positioning block 106 when sliding, one side of the first positioning block 106 is installed on the outer side wall of the sliding cylinder 105, which facilitates the installation of one side of the first positioning block 106 on the outer side of the sliding cylinder 105 On the wall, one side of the sliding cylinder 105 is equipped with a U-shaped plate 104, which facilitates the installation of the U-shaped plate 104 on one side of the sliding cylinder 105. The U-shaped plate 104 is located inside the geological exploration main body 1, which facilitates the U-shaped The plate 104 slides inside the geological exploration main body 1, and one side of the U-shaped plate 104 is provided with a first threaded hole, and the first threaded rod 103 is screwed into the inside of the first threaded hole, which facilitates the passage of the first threaded rod 103 through the first threaded hole. The threaded holes are threadedly fitted inside the U-shaped plate 104 .

The interior of the geological exploration main body 1 of this embodiment is equipped with a second positioning block 107, which facilitates the installation of the second positioning block 107 inside the geological exploration main body 1, and one side of the second positioning block 107 is provided with a slide hole. A threaded rod 103 is located in the inside of the slide hole, which facilitates the rotation of the first threaded rod 103 in the inside of the second positioning block 107 through the slide hole. A motor and two support rods are installed inside the geological exploration main body 1 to facilitate In order to install the motor and the support rod inside the geological exploration main body 1, one side of the second positioning block 107 is installed on one end of the support rod, which facilitates the installation of the second positioning block 107 on one end of the support rod. One end of a threaded rod 103 is installed on the output end of the motor, which facilitates the installation of the first threaded rod 103 on the output end of the motor, and both sides of the second positioning block 107 are equipped with fixing cylinders 108, which facilitates fixing The cylinder 108 is installed on one side of the second positioning block 107, and one end of the fixed cylinder 108 is slidably fitted with a sliding rod 109, which facilitates the sliding fit of the sliding rod 109 on one end of the fixed cylinder 108, and improves the stability of the sliding rod 109 when sliding. Characteristic, one end of slide bar 109 is installed on the side of side probe 110, has made things convenient for one side of side probe 110 to be installed on the end of slide bar 109, and one side of side probe 110 and slide block 113 A spring 111 is installed between the two sides, which facilitates the reset of the lateral probe 110 under the elasticity of the spring 111, and the first fixed block 114 is installed on both sides of the sliding block 113, which facilitates the installation of the first fixed block 114. Be located at one side of slide block 113, one side of the first fixed block 114 is provided with the first fixed rod 115, has made things convenient for the first fixed rod 115 to be installed on the one side of the first fixed block 114, the rotating plate 116 A first through hole is defined at the first end, and the first fixing rod 115 is located inside the first through hole, which facilitates the rotating plate 116 to rotate and fit on the first fixing rod 115 through the first through hole.

One side of the lateral probe 110 of the present embodiment is equipped with two second fixed blocks 117, which facilitates the installation of the second fixed block 117 on one side of the lateral probe 110, and the installation of one side of the second fixed block 117. There is a second fixed rod 118, which facilitates the installation of the second fixed rod 118 on one side of the second fixed block 117. The second end of the rotating plate 116 is provided with a second through hole, and the second fixed rod 118 is located in the second through hole. Inside the hole, it is convenient for the rotating plate 116 to rotate and fit on the second fixed rod 118 through the second through hole. One end of the geological exploration main body 1 is equipped with a drill bit 3, and the other end of the geological exploration main body 1 is provided with a second threaded hole 112. One end of the rotating shaft 2 is provided with a second threaded rod 201, and the second threaded rod 201 is screwed into the inside of the second threaded hole 112, which facilitates the second threaded rod 201 to be screwed into the geological exploration main body 1 through the second threaded hole 112. internal.

A borehole lateral geological exploration testing device and testing method, comprising the following steps:

Step 1: Obtain the distribution area and boundary of the pre-drilled hole positions through geophysical geological exploration methods;

Step 2: In the drilling location area obtained in step 1, use the georesistivity imaging method to perform a deep vertical section on the drilling location area to obtain the geological information of the drilling location;

Step 3: Set the location of the exploratory hole according to the geology information of the drilling location and field obtained in Step 1 and Step 2, and take samples for detection, and further determine the area range and geological parameters of the drilling location.

The present invention is not limited to the above embodiments, and anyone should know that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same as or similar to the present invention, all fall within the protection scope of the present invention. The technologies, shapes and construction parts not described in detail in the present invention are all known technologies.

Claims (8)

1. A lateral geological prospecting test device in a borehole, comprising: a rotating shaft (2), a geological prospecting main body (1) threaded at one end of the rotating shaft (2), characterized in that the geological prospecting main body (1) There are two detection holes (101) on the outer wall of the geological exploration main body (1), and a first threaded rod (103) with opposite threads on both sides is fitted in the internal rotation of the geological exploration main body (1). The upper and lower sides of the first threaded rod (103) Each side of the two sides is respectively vertically threaded to match the sliding block (113) and the sliding cylinder (105); the inner elastic and horizontal sliding of the geological exploration main body (1) is fitted with two lateral probes (110), so Each end of the upper and lower ends of the side of the side probe (110) close to the first threaded rod (103) is respectively rotated and connected to one end of the rotating plate (116), and the other end of the rotating plate (116) is connected to the The sliding block (113) is rotationally connected around the sides, and the two lateral probes (110) match and correspond horizontally to the two detection holes (101), and the lateral probes (110) are far away from the first A pressure sensor is installed on one side of the threaded rod (103); The inner side wall of the geological exploration main body (1) is provided with four slides (102), and the inside of the slides (102) is slidingly fitted with a first positioning block (106), and the first positioning block (106) One side is installed on the outer wall of the sliding cylinder (105); One side of the sliding cylinder (105) is equipped with a U-shaped plate (104), the U-shaped plate (104) is located inside the geological exploration main body (1), and one of the U-shaped plates (104) A first threaded hole is opened on the side, and the first threaded rod (103) is screwed into the inside of the first threaded hole. 2. A kind of borehole lateral geological prospecting testing device according to claim 1, characterized in that, the interior of the geological prospecting main body (1) is equipped with a second positioning block (107), and the second positioning block A slide hole is opened on one side of the block (107), the first threaded rod (103) is located inside the slide hole, and a motor, two support rods are installed inside the geological exploration main body (1) One side of the second positioning block (107) is installed on one end of the support rod, and one end of the first threaded rod (103) is installed on the output end of the motor. 3. A kind of borehole inner lateral geological exploration test device according to claim 2, characterized in that, both sides of the second positioning block (107) are equipped with fixing cylinders (108), and the fixing cylinders One end of (108) is slidably fitted with a sliding rod (109), and one end of said sliding rod (109) is installed on one side of said lateral probe (110), and one side of said lateral probe (110) A spring (111) is installed between one side of the sliding block (113). 4. A kind of borehole inner lateral geological exploration testing device according to claim 1, characterized in that, both sides of the sliding block (113) are equipped with a first fixed block (114), and the first fixed block (114) One side of the fixed block (114) is equipped with a first fixed rod (115), the first end of the rotating plate (116) is provided with a first through hole, and the first fixed rod (115) is located at the first the interior of a through hole. 5. A kind of borehole inner lateral geological exploration testing device according to claim 1, characterized in that, one side of the lateral probe (110) is equipped with two second fixed blocks (117), the One side of the second fixed block (117) is equipped with a second fixed rod (118), the second end of the rotating plate (116) is provided with a second through hole, and the second fixed rod (118) is located at the the inside of the second through hole. 6. A kind of borehole inner lateral geological prospecting testing device according to claim 1, characterized in that, one end of the geological prospecting main body (1) is equipped with a drill bit (3), and the geological prospecting main body (1) A second threaded hole (112) is provided at the other end. 7. A kind of borehole inner lateral geological exploration testing device according to claim 6, characterized in that, one end of the rotating shaft (2) is provided with a second threaded rod (201), and the second threaded rod (201) 201) are threadedly fit inside the second threaded hole (112). 8. A lateral geological prospecting test method in a borehole, which adopts the lateral geological prospecting test device in a borehole as described in any one of claims 1-7, characterized in that it comprises the steps of: Step 1: Obtain the distribution area and boundary of the pre-drilled hole positions through geophysical geological exploration methods; Step 2: In the borehole location area obtained in the step 1, use the georesistivity imaging method to perform a deep vertical section on the borehole location area to obtain the geological information of the borehole location; Step 3: Set the location of the exploratory hole according to the geology information of the drilling location obtained in the step 1 and the step 2, and take samples for detection, and further determine the area range and geological parameters of the drilling location.