DE1187657B - Sealing of the face for compressed air shield driving - Google Patents
Sealing of the face for compressed air shield drivingInfo
- Publication number
- DE1187657B DE1187657B DEH48901A DEH0048901A DE1187657B DE 1187657 B DE1187657 B DE 1187657B DE H48901 A DEH48901 A DE H48901A DE H0048901 A DEH0048901 A DE H0048901A DE 1187657 B DE1187657 B DE 1187657B
- Authority
- DE
- Germany
- Prior art keywords
- face
- compressed air
- sealing
- shield driving
- air shield
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims description 10
- 239000002689 soil Substances 0.000 claims description 7
- 239000000565 sealant Substances 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 5
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 5
- 239000010426 asphalt Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/04—Driving tunnels or galleries through loose materials; Apparatus therefor not otherwise provided for
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0642—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end
- E21D9/0664—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end with means for applying a coating layer to the front face, e.g. by spraying
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
- Sealing Material Composition (AREA)
Description
Abdichten der Ortsbrust beim Druckluft-Schildvortrieb Beim Druckluft Schildvortrieb von Stollen und Tunneln in wasser- und luftdurchlässigen Böden ist bekanntlich ein störend großer Luftbedarf erforderlich, da fortlaufend Luft durch Poren, Risse und Gänge entweicht. Ein hoher Luftbedarf tritt insbesondere beim Beginn von Luftausbrüchen auf. Um in solchen Fällen den Luftbedarf zu reduzieren, ist es bekannt, auf die Ortsbrust eine dicke, in sich dichte Abdichtungsschicht aufzubringen, z. B. die Ortsbrust mit Ton dick zu verschmieren. Das ist arbeitstechnisch aufwendig. Die erreichte Wirkung ist aber nur unbefriedigend. Tatsächlich bleiben die Poren des an der Ortsbrust anstehenden, stark wasser- und luftdurchlässigen Gebirges unausgefüllt, während die Abdichtungsschicht immer wieder, z. B. durch Austrocknen, aufbricht.Sealing of the face when using compressed air shield driving When using compressed air Shield driving of galleries and tunnels in water and air permeable soils is As is well known, a disruptive high air requirement is necessary, since air is continuously flowing through Pores, cracks and passages escapes. A high air requirement occurs especially at the beginning of air outbreaks. To reduce the air requirement in such cases, it is known to apply a thick, inherently dense sealing layer to the face, z. B. smear the face thickly with clay. This is labor-intensive. However, the effect achieved is only unsatisfactory. In fact, the pores remain of the heavily water- and air-permeable mountains standing on the face, unfilled, while the sealing layer repeatedly, z. B. by drying out, breaks open.
Der Erfindung liegt die Aufgabe zugrunde, beim Druckluft-Schildvortrieb von Stollen und Tunneln die Ortsbrust wirksam und technisch einfach abzudichten.The invention is based on the object of compressed air shield propulsion to seal the face of galleries and tunnels effectively and in a technically simple manner.
Erfindungsgemäß wird diese Aufgabe durch die Anwendung des an sich bekannten Aufspritzens von Kunstharz oder Bitumen zum Zwecke des Abdichtens der Ortsbrust beim Druckluft-Schildvortrieb von Stollen und Tunneln in wasser- und luftdurchlässigen Böden gelöst, wobei die aufgespritzten Stoffe durch den Überdruck in der Druckluftkammer in abzudichtende Poren oder Risse eingetragen werden und als Dichtungsmittel dienen.According to the invention, this object is achieved through the application of the per se known spraying of synthetic resin or bitumen for the purpose of sealing the Face for compressed air shield driving of galleries and tunnels in water and air permeable Soils loosened, with the sprayed substances due to the overpressure in the compressed air chamber are entered into pores or cracks to be sealed and serve as a sealant.
In arbeitstechnischer Hinsicht wird zweckmäßigerweise so vorgegangen, daß beim Abbau der Ortsbrust durch einen Mineur sofort die durch Bodenentnahme frei werdende Stelle wieder verspritzt wird, wozu es sich empfiehlt, jeden Mineur mit einer besonderen Spritzpistole auszurüsten.In terms of work technology, it is advisable to proceed as follows: that when the face is dismantled by a miner, the soil removal is immediately released to be sprayed again, for which it is advisable to use every miner to equip a special spray gun.
Es wird dabei nicht mehr eine in sich dichte Abdichtungsschicht auf die Ortsbrust aufgebracht, sondern die Tatsache ausgenutzt, daß beim Druckluft-Schildvortrieb die durch das Gebirge entweichende Druckluft Dichtungsmittel in eben die undichten Poren, Risse u. dgl. hineintransportieren kann, so daß eine intensive und dauerhafte Dichtwirkung mit ganz geringen Dichtungsmittelmengen erreicht wird.There is no longer an inherently tight sealing layer the working face applied, but exploited the fact that the compressed air shield tunneling the compressed air escaping through the mountains sealant in just the leaky Can transport pores, cracks and the like into it, so that an intensive and lasting Sealing effect is achieved with very small amounts of sealant.
Im allgemeinen wird man im Rahmen der Erfindung mit Kunstharz- oder Bitumenemulsionen arbeiten, z. B. mit katalytisch aushärtenden Kunstharzen auf Polyester- oder Epoxydharzbasis. Auch geschäumte Stoffe sind verwendbar. Optimale Wirkung erreicht man im Rahmen dieser Maßnahmen durch Verwendung eines Zweikomponenten-Dichtungsmittels auf Kunstharzbasis, welches aushärtet. Die Drücke, mit denen die Dichtungsschicht mittels Hochdruck-Spritzpistolen oder Hochdruck-Spritzdüsen aufgebracht werden, sollen etwa 4 bis 5 atü betragen.In general, you will be in the context of the invention with synthetic resin or Bitumen emulsions work, e.g. B. with catalytically curing synthetic resins on polyester or epoxy resin base. Foamed materials can also be used. Optimal effect achieved one as part of these measures by using a two-component sealant based on synthetic resin, which hardens. The pressures with which the sealing layer are applied by means of high pressure spray guns or high pressure spray nozzles, should be around 4 to 5 atmospheres.
Die durch die Erfindung erreichten Vorteile sind vor allem neben der hohen Dichtwirkung darin zu sehen, daß nach der Erfindung eine wirksame Abdichtung arbeitstechnisch einfach und unschwer dem fortschreitenden Abbau der Ortsbrust folgend verwirklicht werden kann.The advantages achieved by the invention are above all in addition to high sealing effect can be seen in the fact that according to the invention an effective seal Technically simple and easy to use, following the progressive excavation of the face can be realized.
Im folgenden wird die Erfindung an Hand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung ausführlicher erläutert, die schematisch in einem Längsschnitt einen Stollen zeigt, der im Druckluft-Schildvortrieb aufgefahren wird.In the following the invention is illustrated by means of only one exemplary embodiment Illustrative drawing explained in more detail, the schematically in a longitudinal section shows a tunnel that is driven by compressed air shield driving.
Der in der Zeichnung dargestellte Stollen 1 ist rechts bereits mit dem endgültigen Ausbau 2 versehen, während sich links der Schlid 3 befindet, der für Druckluft-Schildvortrieb eingerichtet ist. Der umgebende Boden sei als wasser- oder luftdurchlässig angenommen. Im Ausführungsbeispiel befindet sich hinter dem Schild ein Hochdruckkessel 4 zur Aufnahme des Dichtungsmittels, an den ein Verteilerkopf 5 angeschlossen ist.The tunnel 1 shown in the drawing is already on the right the final expansion 2 provided, while the Schlid 3 is on the left, the is set up for compressed air shield driving. The surrounding soil is said to be or assumed to be permeable to air. In the exemplary embodiment is behind the Shield a high pressure vessel 4 for receiving the sealant to which a distributor head 5 is connected.
Von dem Verteilerkopf 5 gehen Schlauchleitungen 6 ab, die zu Spritzpistolen 7 führen, von denen jeweils eine für einen der an der Ortsbrust tätigen Mineure vorgesehen ist. Der Hochdruckkessel 4 ist mit einer motorbetriebenen Pumpe 8 ausgerüstet, um den Hochdruck im Kessel 4 aufrechtzuerhalten. Mit dieser Vorrichtung läßt sich offenbar auf Ortsbrust und Schildschwanz Kunststoff oder Bitumen unter Hochdruck aufspritzen. Zweckmäßigerweise wird dabei beim Abbau der Ortsbrust sofort die durch Bodenentnahme frei werdende Stelle wieder verspritzt.Hose lines 6, which lead to spray guns, go from the distributor head 5 7, of which one for one of the miners working on the face is provided. The high pressure boiler 4 is equipped with a motor-driven pump 8, to maintain the high pressure in boiler 4. With this device can apparently on the face and tailgate plastic or bitumen under high pressure splash on. Appropriately, when the face is being dismantled, the through Soil extraction the vacant area is sprayed again.
Claims (2)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH48901A DE1187657B (en) | 1963-04-20 | 1963-04-20 | Sealing of the face for compressed air shield driving |
| CH238064A CH446419A (en) | 1963-04-20 | 1964-02-26 | Method for sealing the face in compressed air shield driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH48901A DE1187657B (en) | 1963-04-20 | 1963-04-20 | Sealing of the face for compressed air shield driving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1187657B true DE1187657B (en) | 1965-02-25 |
Family
ID=7156865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEH48901A Pending DE1187657B (en) | 1963-04-20 | 1963-04-20 | Sealing of the face for compressed air shield driving |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH446419A (en) |
| DE (1) | DE1187657B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001063096A3 (en) * | 2000-02-22 | 2002-03-21 | Fosroc International Ltd | Treatment of rock surfaces |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2676500B1 (en) * | 1991-05-16 | 1995-09-08 | Bessac Creusement Soutenement | METHOD AND SHIELDING MACHINE FOR THE EXCAVATION OF UNDERGROUND GALLERIES, ESPECIALLY IN LOW COHESION AQUIFERATED SOILS. |
-
1963
- 1963-04-20 DE DEH48901A patent/DE1187657B/en active Pending
-
1964
- 1964-02-26 CH CH238064A patent/CH446419A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001063096A3 (en) * | 2000-02-22 | 2002-03-21 | Fosroc International Ltd | Treatment of rock surfaces |
| US6966610B2 (en) | 2000-02-22 | 2005-11-22 | Minova International Limited | Treatment of rock surfaces |
Also Published As
| Publication number | Publication date |
|---|---|
| CH446419A (en) | 1967-11-15 |
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