CN209761453U - TBM tunnel membrane bag cement slurry-stopping body structure - Google Patents
TBM tunnel membrane bag cement slurry-stopping body structure Download PDFInfo
- Publication number
- CN209761453U CN209761453U CN201920255914.0U CN201920255914U CN209761453U CN 209761453 U CN209761453 U CN 209761453U CN 201920255914 U CN201920255914 U CN 201920255914U CN 209761453 U CN209761453 U CN 209761453U
- Authority
- CN
- China
- Prior art keywords
- bag
- cement
- membrane
- film bag
- film
- 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.)
- Active
Links
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a TBM tunnel membrane bag cement grout body structure, including a plurality of cement membrane bags and prefabricated section of jurisdiction, the convex surface of prefabricated section of jurisdiction is equipped with membrane bag preformed groove, is equipped with two in the membrane bag preformed groove and reserves the grout hole, and the prefabricated section of jurisdiction closely arranges and becomes ring shape in the tunnel cave wall, and all membrane bag main bags closely arrange and become annular membrane bag; the cement film bag comprises a film bag main bag and two film bag branch bags, the film bag main bag is fixed in the film bag reserved groove, and one film bag branch bag is inserted into one reserved grouting hole; and cement slurry is filled in the cement film bag, and the reserved grouting hole is blocked by high-strength cement slurry. The utility model discloses it is fast to fill cement thick liquid and form membrane bag end slurry body, and the closely knit nature is good, can not have space and little cavity, ends thick liquid effectually.
Description
Technical Field
The utility model particularly relates to a TBM tunnel membrane bag cement ends thick liquid structure.
Background
the TBM tunneling technology integrates tunnel forming, preliminary bracing and slag transportation, and is a comprehensive construction technology for automatically and industrially constructing the long rock tunnel, has the advantages of high speed, high quality, safety, environmental protection and the like, and is widely applied to domestic long tunnel construction.
In order to ensure the stability and safety of the tunnel in the construction process, the cavity between the duct piece and the surrounding rock needs to be filled with the pea gravel in a blowing mode and filled with the pea gravel in a backfilling mode after the duct piece of the TBM tunnel is lined, so that the duct piece, the pea gravel and the surrounding rock are glued into a whole, the load is jointly borne, the rock stress is transferred, and the stability and the safety of the tunnel are ensured.
due to the limitation of working conditions of a construction tunnel, the pea gravel is subjected to blow filling and backfill grouting in a limited space between a TBM shield and a rear support, the conditions of incomplete pea gravel blow filling, incompact backfill grouting, unqualified pea gravel concretion strength, water leakage of duct piece joints and the like frequently occur, the treatment difficulty is very high, the method mainly comprises the steps that after the pea gravel is subjected to blow filling, annular grout stopping body formed by cement-water glass grout is poured into the pea gravel, gaps and small holes exist, and due to the major defect of the grout stopping body, the grout stopping body cannot well play a grout stopping role during backfill grouting, the grouting pressure and the grout diffusion range cannot be effectively controlled, so that the gap grout filling of the pea gravel is not full or a grout-free pea gravel area appears.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a TBM tunnel membrane bag cement ends thick liquid structure and construction method to solve and to have major defect at present only the thick liquid, only the thick liquid effect is only stopped in the performance that the thick liquid can not be fine when backfilling the grout, unable effective control grouting pressure and thick liquid diffusion range lead to the problem that the thick liquid bean gravel space thick liquid is filled not full or no thick liquid bean gravel district appears.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
On one hand, the TBM tunnel membrane bag cement grout stopping body structure comprises a plurality of soft and easily-deformable, water-permeable and grout-impermeable cement membrane bags and arc-shaped prefabricated pipe pieces, wherein the convex surface of each prefabricated pipe piece is provided with a membrane bag reserved groove which runs through the two end surfaces of the prefabricated pipe piece, two reserved grouting holes which run through the concave surface of each prefabricated pipe piece are arranged in the membrane bag reserved grooves, the prefabricated pipe pieces are closely arranged in the tunnel wall to form a ring shape, and all main membrane bag main bags are closely arranged to form a ring-shaped membrane bag;
The cement film bag comprises a film bag main bag and two film bag branch bags, the length of each film bag branch bag is greater than the depth of a reserved grouting hole, the film bag main bag is fixed in a film bag reserved groove, one film bag branch bag is inserted into one reserved grouting hole, one end of each film bag branch bag is communicated with the film bag main bag, and the other end of each film bag branch bag is provided with an opening;
The cement film bag is filled with cement paste, the opening of the reserved grouting hole on the concave surface of the prefabricated pipe piece is plugged by high-strength cement mortar, the cement film bag filled with the cement paste and the prefabricated pipe piece at the position form a sheet film bag cement paste stopping body, and the annular film bag filled with the cement paste and the prefabricated pipe piece at the position form an annular film bag cement paste stopping body.
preferably, the joint of the membrane bag main bag and the membrane bag preformed groove is bonded by a water stop adhesive, the outer surface of the membrane bag main bag is bonded with the prefabricated pipe piece by an adhesive tape, and the radian of the membrane bag main bag is consistent with that of the prefabricated pipe piece and does not protrude out of the cambered surface of the prefabricated pipe piece.
Preferably, the material of the cement film bag is high polymer fiber geotextile or fine canvas.
Preferably, the annular membrane bag cement grout stop body comprises six cement membrane bags and six prefabricated pipe pieces.
On the other hand, the construction method of the TBM tunnel film bag cement grout stopping body structure comprises the following steps,
S1, assembling the cement film bag and the prefabricated pipe piece: placing two membrane bag branch bags into two reserved grouting holes of a prefabricated pipe piece, removing air from a membrane bag main bag to form a sheet, sticking the sheet in a membrane bag reserved groove of the convex surface of the prefabricated pipe piece, bonding the joint of a cement membrane bag and the membrane bag reserved groove by using a water stop adhesive, and bonding the outer side surface of the cement membrane bag and the prefabricated pipe piece by using an adhesive tape to enable the membrane bag main bag to be flush with the convex surface of the prefabricated pipe piece; sequentially mounting and fixing the prefabricated pipe sheets adhered with the cement film bags in the tunnel wall to form a circular ring shape, and tightly arranging the main film bag bags in the film bag reserved grooves to form a circular film bag;
S2, installing a pulp inlet pipe and a pulp outlet pipe: pulling out the membrane bag branch bags in the reserved grouting holes, wherein the opening of one membrane bag branch bag is communicated with a slurry inlet pipe, a slurry inlet pressure gauge and a slurry inlet valve are installed on the slurry inlet pipe, and the slurry inlet pressure gauge is positioned between the slurry inlet valve and the prefabricated pipe piece; the opening of the other membrane bag supporting bag is communicated with a slurry outlet pipe, a slurry outlet pressure gauge and a slurry outlet valve are arranged on the slurry outlet pipe, and the slurry outlet pressure gauge is positioned between the slurry outlet valve and the prefabricated pipe piece;
s3, grouting into the cement film bag: pouring cement slurry/quick-setting cement slurry into the cement film bags through the slurry inlet pipes, closing the slurry inlet valves and the slurry outlet valves after the cement film bags are filled with the cement slurry/quick-setting cement slurry, closing the slurry inlet valves and the slurry outlet valves to form a sheet film bag cement slurry stopping body, and grouting all the cement film bags in the annular film bags according to the method, wherein the annular film bags and the prefabricated pipe sheets form the annular film bag cement slurry stopping body;
S4, cutting off the branch bag of the membrane bag and plugging the reserved grouting hole: and (3) closing the slurry, cutting off the membrane bag support bag after the slurry is solidified until the cement slurry/quick-setting cement slurry in the annular membrane bag is solidified, and plugging the opening of the reserved grouting hole, which is positioned on the concave surface of the prefabricated segment, by using high-strength cement mortar.
preferably, in step S3, the cement film bag is filled with 0.5:1 cement slurry/quick setting cement slurry through the slurry inlet pipe, and when the cement slurry flows out from the slurry outlet pipe and the pressure reaches 0.2-0.3MPa, the slurry inlet valve and the slurry outlet valve are closed after the slurry is blocked for 3 min.
Preferably, the grouting sequence in step S3 is: bottom arch cement film bag → top arch cement film bag → left lower arch cement film bag → right upper arch cement film bag → left upper arch cement film bag → right lower arch cement film bag.
Preferably, in step S4, the side pockets of the membrane bag are cut off after the slurry is closed and coagulated for 24 hours.
The utility model has the advantages that:
1. The utility model discloses preparation, installation simple process, the pouring cement thick liquid forms the membrane bag and ends the slurry body fast, the compactness is good, can not have space and cavity, it is effectual to end the thick liquid, it is nimble, quick to set up, do benefit to the tunnel construction percolating water and handle, overcome the current major defect that ends the slurry body and exist, only the fine performance of slurry body ability ends the thick liquid effect when backfilling the grout, can effective control grouting pressure and thick liquid diffusion range, it is full to make the soybean gravel space thick liquid fill, the problem in no thick liquid soybean gravel district can not appear.
Drawings
FIG. 1 is a schematic structural diagram of a cement film bag;
FIG. 2 is a schematic structural view of a prefabricated segment;
FIG. 3 is a schematic cross-sectional view taken along line 1-1 of a prefabricated segment;
FIG. 4 is a schematic layout of prefabricated pipe pieces and cement film bags;
FIG. 5 is a schematic structural view of an annular membrane bag formed by splicing prefabricated segments;
FIG. 6 is a schematic structural diagram of grouting of a cement film bag;
Fig. 7 is a schematic structural diagram of an annular film bag cement grout stopping body formed after cement grout is poured.
wherein: 1. a film bag main bag; 2. supporting the film bags; 3. prefabricating a segment; 4. reserving a grouting hole; 5. a film bag preformed groove; 6. a tunnel wall; 7. an annular membrane bag; 8. the sheet-shaped film bag cement grout stopping body; 9. a pulp inlet pipe; 10. a slurry inlet pressure gauge; 11. a slurry inlet valve; 12. a pulp outlet pipe; 13. a slurry outlet pressure gauge; 14. a slurry outlet valve; 15. annular membrane bag cement grout stopping body; 16. a cement film bag.
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention.
Embodiment 1, refer to fig. 1-7, this embodiment provides a TBM tunnel membrane bag cement grout-stop body structure, which includes a plurality of soft, easily deformable, permeable and impermeable cement membrane bags 16, and an arc-shaped prefabricated duct piece 3, a membrane bag reservation groove 5 penetrating through two end faces of the prefabricated duct piece 3 is arranged on a convex surface of the prefabricated duct piece 3, two reserved grouting holes 4 penetrating through a concave surface of the prefabricated duct piece 3 are arranged in the membrane bag reservation groove 5, the prefabricated duct pieces 3 are tightly arranged in a tunnel wall 6 to form a ring shape, and all the membrane bag main bags 1 are tightly arranged to form a ring-shaped membrane bag 7;
The cement film bag 16 comprises a film bag main bag 1 and two film bag branch bags 2, the lengths of the two film bag branch bags are larger than the depth of the reserved grouting hole 4, the film bag main bag 1 is fixed in a film bag reserved groove 5, one film bag branch bag 2 is inserted into one reserved grouting hole 4, one end of each film bag branch bag 2 is communicated with the film bag main bag 1, and the other end of each film bag branch bag 2 is provided with an opening;
The cement film bag 16 is filled with cement paste, the opening of the reserved grouting hole 4 on the concave surface of the prefabricated duct piece 3 is plugged by high-strength cement paste, the cement film bag 16 filled with the cement paste and the prefabricated duct piece 3 at the position form a sheet film bag cement paste stopping body 8, and the annular film bag 7 filled with the cement paste and the prefabricated duct piece 3 at the position form an annular film bag cement paste stopping body 15.
The joint of the membrane bag main bag 1 and the membrane bag preformed groove 5 is bonded by a water stop adhesive, the outside of the membrane bag main bag 1 is bonded with the prefabricated pipe piece 3 by an adhesive tape, and the radian of the membrane bag main bag 1 is consistent with that of the prefabricated pipe piece 3 and does not protrude out of the cambered surface of the prefabricated pipe piece 3.
the cement film bag 16 is made of high polymer fiber geotextile or fine canvas.
The annular membrane bag cement grout stopping body 15 comprises six cement membrane bags 16 and six prefabricated pipe pieces 3.
Embodiment 2, referring to fig. 1 to 7, the present embodiment provides a method for constructing a cement grout-stopping structure of a membrane bag of a TBM tunnel, comprising the following steps,
S1, assembling the cement film bag 16 and the prefabricated pipe piece 3: placing two membrane bag branch bags 2 into two reserved grouting holes 4 of a prefabricated pipe piece 3, removing air from a membrane bag main bag 1 to form a sheet, sticking the sheet in a membrane bag reserved groove 5 of the convex surface of the prefabricated pipe piece 3, bonding the joint of a cement membrane bag 16 and the membrane bag reserved groove 5 by using a water stop adhesive, and bonding the outer side surface of the cement membrane bag 16 and the prefabricated pipe piece 3 by using an adhesive tape to enable the membrane bag main bag 1 to be flush with the convex surface of the prefabricated pipe piece 3; sequentially installing and fixing the prefabricated pipe pieces 3 adhered with the cement film bags 16 in the tunnel cave wall 6 to form a circular ring shape, and tightly arranging the film bag main bags 1 in the film bag preformed grooves 5 to form a circular film bag 7;
S2, installing the pulp inlet pipe 9 and the pulp outlet pipe 12: pulling out the membrane bag branch bags 2 in the two reserved grouting holes 4, wherein the opening of one membrane bag branch bag 2 is communicated with a slurry inlet pipe 9, a slurry inlet pressure gauge 10 and a slurry inlet valve 11 are installed on the slurry inlet pipe 9, and the slurry inlet pressure gauge 10 is positioned between the slurry inlet valve 11 and the prefabricated pipe piece 3; an opening of the other membrane bag supporting bag 2 is communicated with a slurry outlet pipe 12, a slurry outlet pressure gauge 13 and a slurry outlet valve 14 are arranged on the slurry outlet pipe 12, and the slurry outlet pressure gauge 13 is positioned between the slurry outlet valve 14 and the prefabricated pipe piece 3;
S3, grouting into the cement film bag 16: pouring cement slurry/quick-setting cement slurry into the cement film bag 16 through the slurry inlet pipe 9, closing the slurry inlet valve 11 and the slurry outlet valve 14 after the cement film bag 16 is filled with the cement slurry/quick-setting cement slurry, closing the slurry inlet valve and the slurry outlet valve 14 after the cement film bag 16 is completely grouted, forming a sheet film bag cement slurry stop body 8 by the cement film bag 16 and the prefabricated pipe piece 3, grouting all the cement film bags 16 in the annular film bag 7 according to the method, and forming an annular film bag cement slurry stop body 15 by the annular film bag 7 and the prefabricated pipe piece 3;
S4, cutting off the branch bag 2 of the membrane bag and plugging the reserved grouting hole 4: and (3) closing the slurry, cutting off the membrane bag support bag 2 after the cement slurry/quick-setting cement slurry in the annular membrane bag 7 is solidified, and plugging the opening of the reserved grouting hole 4, which is positioned on the concave surface of the prefabricated segment 3, by using high-strength cement slurry.
In the step S3, cement grout/quick setting cement slurry of 0.5:1 is poured into the cement film bag 16 through the grout inlet pipe 9, and when the cement grout flows out from the grout outlet pipe 12 and the pressure reaches 0.2-0.3MPa, the grout inlet valve 11 and the grout outlet valve 14 are closed after the grout is screened for 3 min.
The grouting sequence in the step S3 is as follows: bottom arch cement film bag 16 → top arch cement film bag 16 → left lower arch cement film bag 16 → right upper arch cement film bag 16 → left upper arch cement film bag 16 → right lower arch cement film bag.
In the step S4, the branch bag 2 is cut off after the slurry is closed and the coagulation is performed for 24 hours.
The embodiment 1-2 is explained, the cement film bag 16 is made of high polymer fiber geotextile, and has the characteristics of softness, easy deformation, water permeability and slurry impermeability, the air in the film bag main bag 1 is discharged, then is contracted and pressed into a thin flat strip shape, the film bag preformed groove 5 adhered on the convex surface of the prefabricated pipe piece 3 is adhered, the prefabricated pipe piece 3 adhered with the cement film bag 16 is arranged at the preset slurry stop position of the tunnel wall 6, all the cement film bags 16 are closely arranged and spliced into the annular film bag 7, the cement film bag 16 filled with cement slurry and the prefabricated pipe piece 3 at the position form the sheet film bag cement slurry stop body 8, and the annular film bag 7 filled with cement slurry and the prefabricated pipe piece 3 at the position form the annular film cement bag slurry stop body 15.
pouring cement slurry/quick-setting cement slurry into the cement film bag 16 on the prefabricated pipe piece 3, and expanding and blocking a cavity between the pipe piece and the tunnel wall by the cement film bag 16 under the action of slurry pressure; excess moisture in the slurry is discharged from the pores of the cement film bag 16, and after the cement slurry in the cement film bag 16 is condensed, the cement film bag 16, the prefabricated pipe piece 3 and the tunnel cave wall 6 are connected into a whole to form an annular film bag cement grout stop body 15.
compared with the prior art, the construction method has the following characteristics and advantages:
1. simple manufacturing process
the cement film bag 16 is made of high polymer fiber geotextile or fine canvas which is light, thin, high-strength and soft, and is cut according to the design size and then sewn by a sewing machine without professional equipment.
2. The film bag is installed in the prefabrication plant, so that the installation time of the duct piece is not occupied
when the prefabricated pipe piece 3 is manufactured, the film bag preformed groove 5 and the reserved grouting hole 4 are arranged on the back surface of the prefabricated pipe piece 3, and the cement film bag 16 is installed in the film bag preformed groove 5 before the prefabricated pipe piece 3 leaves a factory.
3. the installation process is simple
Air in the cement film bag 16 is removed through extrusion, the film bag main bag 1 is made to be flaky, the film bag branch bag 2 is placed into a reserved grouting hole 4 of the prefabricated pipe piece 3, the film bag main bag 1 is placed into a film bag reserved groove 5, the contact side of the film bag main bag 1 and the prefabricated pipe piece 3 is pasted with a water stop adhesive, the exposed side of the film bag main bag 1 is pasted with an adhesive tape, the radian of the film bag main bag 1 and the radian of the prefabricated pipe piece 3 are consistent, the film bag main bag does not protrude out of the cambered surface of the prefabricated pipe piece 3, and the cement film bag 16 is installed completely.
4. High grouting speed and high grout stopping formation speed
The cement film bag 16 can play a role of stopping grout after grouting, after the cement film bag 16 forming the annular film bag 7 is completely filled with grout, the film bag branch bag 2 is firmly blocked to form the annular film bag cement stopping body 15, and the annular film bag cement stopping body has the function of stopping the flow of the grout and water without being solidified.
Each ring of prefabricated pipe pieces 3 of the TBM tunnel is 6 pieces per ring according to 6 finished and built TBM pipe piece lining tunnels at present, the arc length of the prefabricated pipe pieces 3 is 3.5m on average, 166 sections of cement film bags to be installed per ring correspond to the prefabricated pipe pieces 3, the length of the cement film bags is equal to the arc length of the prefabricated pipe pieces 3, the length of the cement film bags 16 is 21m, the length of each cement film bag 16 is 3.5m, the amount of injected cement paste is about 50L, the grouting time is about 1min, in order to enable as much cement to be deposited in the film bags as possible, the screen grouting is required for 3min, the time required for installing and disassembling the grouting pipes per section is about 2min, the forming time of each section of the sheet film bag cement paste body 8 is about 6min, 1 grouting pump is used for sequential grouting, the time for forming the annular film bag cement paste body 15 is about 36min, in order to prevent the prefabricated pipe pieces 3 from shifting in actual construction, symmetrical parallel grouting is generally adopted, so the time for forming the annular film bag cement paste body, compared with the two-fluid method grouting grout stopping formation time of 90min to 120min, the formation time is shortened by 70 min to 100 min.
5. The film bag has compact grout stopping body and good blocking effect
After the cement film bag 16 is expanded, water can permeate and has the effect of filtering cement particles, most of water is extruded out of the cement film bag 16 under the action of slurry pressure in the process of filling the cement screen with the film bag, the cement particles are left in the cement film bag 16, and a cement slurry solidified body in the cement film bag has good compactness and is basically impermeable; the contact ends of two adjacent sections of cement membrane bags 16 are connected into a whole after the cement slurry filled in the membrane bags is expanded and compacted, and are basically impermeable to water and can well block the flow of water flow and slurry.
6. Is installed in due time according to the field condition, is favorable for water burst and water seepage treatment
the cement film bag 16 is arranged on the convex surface of the prefabricated pipe piece 3 and is arranged together with the prefabricated pipe piece 3, when water leakage occurs to surrounding rocks, the cement film bag 16 can be flexibly arranged according to the position of the water leakage of the surrounding rocks, grouting is timely performed to form a grout stop body, backfilling grouting is completed between a TBM shield and a back support after the pea gravel is blown and filled, the water leakage is stopped, and the water leakage is conveniently treated.
7. Can be applied to different diameter TBM tunnel segment lining back and end thick liquids setting
The cement film bag 16 is manufactured according to the radian and arc length of the TBM tunnel lining segment, and is suitable for setting the grout stopping body after the tunnel segments with different diameters are lined.
The utility model discloses preparation, installation simple process, the pouring cement thick liquid forms the membrane bag and ends the slurry body fast, the compactness is good, can not have space and cavity, it is effectual to end the thick liquid, it is nimble, quick to set up, do benefit to the tunnel construction percolating water and handle, overcome the current major defect that ends the slurry body and exist, only the fine performance of slurry body ability ends the thick liquid effect when backfilling the grout, can effective control grouting pressure and thick liquid diffusion range, it is full to make the soybean gravel space thick liquid fill, the problem in no thick liquid soybean gravel district can not appear.
The above embodiments are provided for illustrative purposes, and are not intended to limit the present invention, and any modifications and changes made within the spirit and scope of the claims fall within the scope of the present invention.
Claims (4)
1. A TBM tunnel membrane bag cement grout stop body structure is characterized by comprising a plurality of soft and easily-deformable cement membrane bags (16) which are permeable to water and impermeable to grout and arc-shaped prefabricated pipe pieces (3), wherein the convex surfaces of the prefabricated pipe pieces (3) are provided with membrane bag reserved grooves (5) which penetrate through the two end surfaces of the prefabricated pipe pieces, two reserved grouting holes (4) which penetrate through the concave surfaces of the prefabricated pipe pieces (3) are formed in the membrane bag reserved grooves (5), the prefabricated pipe pieces (3) are tightly arranged in a tunnel wall (6) to form a ring shape, and all membrane bag main bags (1) are tightly arranged to form ring-shaped membrane bags (7);
The cement film bag (16) comprises a film bag main bag (1) and two film bag branch bags (2) with the length larger than the depth of the reserved grouting hole (4), the film bag main bag (1) is fixed in the film bag reserved groove (5), one film bag branch bag (2) is inserted into one reserved grouting hole (4), one end of each film bag branch bag (2) is communicated with the film bag main bag (1), and the other end of each film bag branch bag (2) is provided with an opening;
fill in cement paste in cement membrane bag (16), reserve grout hole (4) and lie in the opening of prefabricated section of jurisdiction (3) concave surface and pass through the shutoff of high strength cement mortar, pack cement membrane bag (16) full of cement paste and constitute slice membrane bag cement with prefabricated section of jurisdiction (3) at place and end slurry body (8), pack annular membrane bag (7) full of cement paste and constitute annular membrane bag cement with prefabricated section of jurisdiction (3) at place and end slurry body (15).
2. the TBM tunnel membrane bag cement grout body structure as claimed in claim 1, wherein the joint of the membrane bag main bag (1) and the membrane bag preformed groove (5) is bonded through a water stop strip adhesive, the outer surface of the membrane bag main bag (1) is bonded with the prefabricated pipe piece (3) through an adhesive tape, and the radian of the membrane bag main bag (1) is consistent with that of the prefabricated pipe piece (3) and does not protrude out of the cambered surface of the prefabricated pipe piece (3).
3. The TBM tunnel membrane bag cement grout structure of claim 1 or 2, wherein the material of the cement membrane bag (16) is high polymer fiber geotextile or fine canvas.
4. the TBM tunnel membrane bag cement grout body structure of claim 1, wherein the annular membrane bag cement grout body (15) comprises six cement membrane bags (16) and six prefabricated pipe pieces (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920255914.0U CN209761453U (en) | 2019-02-28 | 2019-02-28 | TBM tunnel membrane bag cement slurry-stopping body structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920255914.0U CN209761453U (en) | 2019-02-28 | 2019-02-28 | TBM tunnel membrane bag cement slurry-stopping body structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209761453U true CN209761453U (en) | 2019-12-10 |
Family
ID=68752974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920255914.0U Active CN209761453U (en) | 2019-02-28 | 2019-02-28 | TBM tunnel membrane bag cement slurry-stopping body structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209761453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763837A (en) * | 2019-02-28 | 2019-05-17 | 中国水利水电第四工程局有限公司 | A kind of TBM tunnel film bag cement stops paste structure and construction method |
-
2019
- 2019-02-28 CN CN201920255914.0U patent/CN209761453U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763837A (en) * | 2019-02-28 | 2019-05-17 | 中国水利水电第四工程局有限公司 | A kind of TBM tunnel film bag cement stops paste structure and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109653767B (en) | Anti-floating duct piece for shield tunnel, and processing method and using method thereof | |
| CN106761835B (en) | A kind of Karst Tunnel leak segmenting slip casting construction method | |
| CN110566273B (en) | Drainage system and drainage method for treating tunnel surrounding rock fracture water | |
| CN109505634A (en) | Emergency type water-impervious airbag apparatus and its application method in tunnel | |
| CN109440951B (en) | Waterproof structure for joint of new and old concrete structures and construction process | |
| CN109763837A (en) | A kind of TBM tunnel film bag cement stops paste structure and construction method | |
| CN205936654U (en) | A gasbag template for tunnel secondary lining | |
| CN107327308A (en) | A kind of Railway Tunnel waterproof method | |
| CN109630803B (en) | Pipeline repairing device, system and method | |
| CN107489435A (en) | A kind of changeable type inflatable waterstop for Tunneling by mining method | |
| CN102913184A (en) | Secondary composite high-pressure grouting and sealing process of gas drainage drilling artificial separation barrier | |
| CN209369066U (en) | Concrete structure split bolt hole anti-leakage structure | |
| CN109208651A (en) | Underground engineering super-long structural body deformation joint waterproof/drainage structure construction method and structure | |
| CN108756941B (en) | Two-lining trolley belt mold grouting structure and belt mold grouting method | |
| CN111441392A (en) | Grouting water guide leakage stoppage structure and underwater jet grouting anchor cable water stop construction method | |
| CN209761453U (en) | TBM tunnel membrane bag cement slurry-stopping body structure | |
| CN106522990A (en) | Tunnel lining end template structure with waterproofing and drainage functions | |
| CN109723071B (en) | Construction method of double-layer steel drum drainage system built in basement floor post-cast strip | |
| CN102747722B (en) | Underground continuous wall joint close grouting and covering construction method and expansion rubber plug | |
| CN208235554U (en) | A kind of installation of pressure-bearing dewatering well and plugging device | |
| CN104314048B (en) | Manufacturing and construction method of air bag type concrete engineering deformation joint water stop type cavity die | |
| CN209603062U (en) | Change the concentrative seepage plugging structure that dynamic water is hydrostatic in gallery | |
| CN112593978A (en) | Secondary lining vault anti-disengaging device and construction method | |
| CN215804475U (en) | Sleeve valve pipe slip casting component and be used for hole sealing subassembly of rich water karst | |
| CN207452926U (en) | A kind of instrument for improving Application of light well point precipitation efficiency |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |