CN108385704A - A kind of diaphram wall piping plugging structure and its construction method - Google Patents
A kind of diaphram wall piping plugging structure and its construction method Download PDFInfo
- Publication number
- CN108385704A CN108385704A CN201810442380.2A CN201810442380A CN108385704A CN 108385704 A CN108385704 A CN 108385704A CN 201810442380 A CN201810442380 A CN 201810442380A CN 108385704 A CN108385704 A CN 108385704A
- Authority
- CN
- China
- Prior art keywords
- bar
- mat reinforcement
- diaphram wall
- drainpipe
- wall
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
- E02D19/185—Joints between sheets constituting the sealing aprons
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a kind of diaphram wall piping plugging structures, including both sides diaphram wall, seepage point between diaphragm wall located underground, more drainpipes being inserted in seepage point, and building synthetic material is equipped with around drainpipe front end, inside is coated with leak stopping king or pouch quick-hardening cement, the first bar-mat reinforcement in concave shape is equipped with outside the break, its surrounding is welded with expansion bolt and is fixed with both sides diaphram wall, and more drainpipes pass through the first bar-mat reinforcement, the first concrete walls are equipped on the outside of first bar-mat reinforcement successively, second bar-mat reinforcement and the second concrete walls, and drainpipe bending at the second bar-mat reinforcement extends to ground connection draining vacuum pump.
Description
Technical field
The present invention relates to the technical field of construction such as house deep basal pit, Metro Deep Excavation, and in particular to a kind of diaphram wall
Piping plugging structure.
Background technology
There are many construction method of underground continuous wall, and diaphram wall will be mostly molded by several times, for cement mixing pile-type underground
Diaphragm wall is sometimes because whitewash uneven, and deviation is larger again for verticality when molding, it may appear that diaphram wall grooving twice
Joint does not reach position in the process, generates diaphram wall and blocks water deficiency, water and soil form mud from diaphram wall seam
Place's outflow forms piping and is transported in Excavation Process as soil is dug out, and the mud at piping can largely ooze out, if not
Energy quick blocking muddy water, will greatly endanger the safety of the stabilization and peripheral structure of diaphram wall.
General processing method be first at piping quickly stuffing, using backfill carry out sealing, then again in situ under
Periphery at diaphragm wall carries out new construction of diaphragm wall, and former continuous underground wall structure, this method are substituted with new diaphram wall
Quantities is big, and the time is long, of high cost, can't quickly be blocked, security risk is higher.
When in part, diaphram wall seeps water, if containing sand or mud amount during diaphram wall water percolating capacity is few and water quality
It is few, side punching may be used, be packed into the aqueduct with switch valve, sealed using rapid-hardening leak stopping king on aqueduct periphery
It is stifled, after closure is completed and intensity reaches certain value at closure, diversion tube valve is closed, sealing purpose is reached, if worrying to block
After can seep water again, can again after diaphram wall in the soil body carry out high-pressure slip-casting, pour into water soluble polyurethane leak-stopping agent, it is right
Such method is not applicable when water is larger in piping.
Invention content
The purpose of the present invention is to provide one kind can lower cost and quick blocking diaphram wall seam crossing largely leak
A kind of piping plugging structure and its construction method of water.
To achieve the above object, the present invention provides the following technical solutions：A kind of diaphram wall piping plugging structure, including
Both sides diaphram wall, the seepage point between diaphragm wall located underground, more drainpipes being inserted in seepage point, and before drainpipe
Building synthetic material is equipped with around end, inside is coated with leak stopping king or pouch quick-hardening cement, is equipped in recessed outside the break
First bar-mat reinforcement of font, surrounding are welded with expansion bolt and are fixed with both sides diaphram wall, and more drainpipes pass through the
One bar-mat reinforcement, the first bar-mat reinforcement outside are equipped with the first concrete walls, the second bar-mat reinforcement and the second concrete walls, and drainpipe successively
Bending extends to ground connection draining vacuum pump at the second bar-mat reinforcement.
Preferably, the expansion bolt is mounted in diaphram wall in advance, welded with the first bar-mat reinforcement.
Preferably, second bar-mat reinforcement and the diaphram wall of both sides are fixed by expansion bolt.
Preferably, the size of first bar-mat reinforcement is more than the excavated section size on seepage point periphery.
A kind of construction method of diaphram wall piping plugging structure, including following content：
Step 1: the soil body in rises is carried out artificial laterally excavation, the triangular form section of bottom surface level is formed, cutting depth is
1m is put into more rigid plastics drainpipes on section horizontal plane；
Step 2: digging depth 30cm again with scuppit level in drainpipe surrounding, and it is mingled with speed using building synthetic material in surrounding
Solidifying type leak stopping king or small packed quick-hardening cement block, and the water of piping is made mainly to be flowed out out of drainpipe；
Step 3: making the first bar-mat reinforcement of concave character type, size while arranging rigid plastics drainpipe and blocking
The entire section of excavation is covered, while being drilled on diaphram wall according to bar-mat reinforcement size and reinforcement location, is pacified in hole
Expansion bolt is filled, bolt and the first bar-mat reinforcement are connected using welding；
Step 4: drain level is disposed through the first bar-mat reinforcement, the surface dust on the seepage point periphery of diaphram wall is cleared up, so
The shuttering on the outside of the first bar-mat reinforcement afterwards pours quick-hardening cement concrete inside template and fills up excavation regions the first coagulation of formation
Cob wall；
Step 5: after the condensation of the cement concrete of the first concrete walls has preliminary intensity, form removal carries out the second bar-mat reinforcement
Laying, such as the first bar-mat reinforcement of fixed copper of diaphragm wall, and by drainpipe bending in the second bar-mat reinforcement；
Step 6: the formwork erection on the outside of the second bar-mat reinforcement, and pour quick-hardening cement concrete in inside and form the second concrete walls.
Compared with prior art, disclosed a kind of diaphram wall piping plugging structure has following beneficial
Effect：
Piping closure is carried out using this structure, speed of application is fast, and water percolating capacity is few, and drainage speed is fast, and effect is good, at low cost, especially
It is that effect is particularly evident in cement mixing pile-type construction of diaphragm wall, can quickly solves the problems, such as piping, ensures that underground connects
Safety of the continuous wall in construction.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the sectional view of A-A in Fig. 1；
Fig. 3 is the sectional view of B-B in Fig. 1.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Fig. 1 ~ 3, a kind of disclosed diaphram wall piping plugging structure is realized to diaphram wall
Between the piping situation that occurs of seam crossing carry out quick blocking, specifically include both sides diaphram wall 1, diaphragm wall located underground it
Between seepage point 2, excavate to form section 3 at the seepage point, level is inserted in more drainpipes 4 in section（Rigid plastics is arranged
Water pipe）, the building synthetic material 5 for being coated with leak stopping king or packed quick-hardening cement is equipped with around the drainpipe front end（Geotextiles or
Cotton）, it is equipped with the first bar-mat reinforcement 6 in concave shape in section periphery, size is more than cross dimensions, the first bar-mat reinforcement surrounding pair
Expansion bolt 7 is housed in the diaphram wall answered, is welded and fixed with the first bar-mat reinforcement, the periphery of the first bar-mat reinforcement has poured successively
First concrete walls 8, the second bar-mat reinforcement 9 and the second concrete walls 10, wherein the second bar-mat reinforcement surrounding equally with mounted in diaphragm wall
Interior expansion bolt is welded and fixed, and drainpipe passes through the first bar-mat reinforcement and the first concrete walls, is rolled at the second bar-mat reinforcement
It is curved to extend upwardly to bottom surface connection draining vacuum pump 11.
The water of seepage point is extracted totally by draining vacuum pump, the leak stopping king of drainpipe surrounding setting or quick-hardening cement ensure
The water of seepage point is discharged from drainpipe.
A kind of construction method of diaphram wall piping plugging structure, including following content：
Step 1: the soil body in rises is carried out artificial laterally excavation, the triangular form section of bottom surface level is formed, cutting depth is
1m is put into more rigid plastics drainpipes on section horizontal plane；
Step 2: digging depth 30cm again with scuppit level in drainpipe surrounding, and it is mingled with speed using building synthetic material in surrounding
Solidifying type leak stopping king or small packed quick-hardening cement block, and the water of piping is made mainly to be flowed out out of drainpipe；
Step 3: making the first bar-mat reinforcement of concave character type, size while arranging rigid plastics drainpipe and blocking
The entire section of excavation is covered, while being drilled on diaphram wall according to bar-mat reinforcement size and reinforcement location, is pacified in hole
Expansion bolt is filled, bolt and the first bar-mat reinforcement are connected using welding；
Step 4: drain level is disposed through the first bar-mat reinforcement, the surface dust on the seepage point periphery of diaphram wall is cleared up, so
The shuttering on the outside of the first bar-mat reinforcement afterwards, fast duralumin acid salt cement concrete is poured inside template fills up excavation regions and form the
One concrete walls；
Step 5: after the condensation of the cement concrete of the first concrete walls has preliminary intensity, form removal carries out the second bar-mat reinforcement
Laying, such as the first bar-mat reinforcement of fixed copper of diaphragm wall, and by drainpipe bending in the second bar-mat reinforcement；
Step 6: the formwork erection on the outside of the second bar-mat reinforcement, and pour fast duralumin acid salt cement concrete in inside and form the second coagulation
Cob wall.
If infiltration is big, when simple setting drainpipe cannot be satisfied drainage requirement, the position of 8m or so on the outside of away from foundation pit
Construction pipe well, pipe well 1m lower than piping positions bottom level or so are installed, after the completion of construction, the larger pump of power is put into and carries out
Auxiliary is drawn water, to ensure to drain.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of diaphram wall piping plugging structure, it is characterised in that：Including both sides diaphram wall, diaphragm wall located underground
Between seepage point, more drainpipes being inserted in seepage point, and around drainpipe front end be equipped with building synthetic material, inside packet
It is covered with leak stopping king or pouch quick-hardening cement, the first bar-mat reinforcement in concave shape is equipped with outside the break, surrounding is welded with
Expansion bolt is fixed with both sides diaphram wall, and more drainpipes pass through the first bar-mat reinforcement, are set successively on the outside of the first bar-mat reinforcement
There are the first concrete walls, the second bar-mat reinforcement and the second concrete walls, and drainpipe bending at the second bar-mat reinforcement extends to ground
Connection draining vacuum pump.
2. a kind of diaphram wall piping plugging structure according to claim 1, it is characterised in that：The expansion bolt is pre-
In diaphram wall, welded with the first bar-mat reinforcement.
3. a kind of diaphram wall piping plugging structure according to claim 1, it is characterised in that：Second bar-mat reinforcement
It is fixed by expansion bolt with the diaphram wall of both sides.
4. a kind of diaphram wall piping plugging structure according to claim 1, it is characterised in that：First bar-mat reinforcement
Size be more than seepage point periphery excavated section size.
5. the construction method of diaphram wall piping plugging structure in a kind of claim 1, it is characterised in that including following content：
Step 1: the soil body in rises is carried out artificial laterally excavation, the triangular form section of bottom surface level is formed, cutting depth is
1m is put into more rigid plastics drainpipes on section horizontal plane；
Step 2: digging depth 30cm again with scuppit level in drainpipe surrounding, and it is mingled with speed using building synthetic material in surrounding
Solidifying type leak stopping king or small packed quick-hardening cement block, and the water of piping is made mainly to be flowed out out of drainpipe；
Step 3: making the first bar-mat reinforcement of concave character type, size while arranging rigid plastics drainpipe and blocking
The entire section of excavation is covered, while being drilled on diaphram wall according to bar-mat reinforcement size and reinforcement location, is pacified in hole
Expansion bolt is filled, bolt and the first bar-mat reinforcement are connected using welding；
Step 4: drain level is disposed through the first bar-mat reinforcement, the surface dust on the seepage point periphery of diaphram wall is cleared up, so
The shuttering on the outside of the first bar-mat reinforcement afterwards pours quick-hardening cement concrete inside template and fills up excavation regions the first coagulation of formation
Cob wall；
Step 5: after the condensation of the cement concrete of the first concrete walls has preliminary intensity, form removal carries out the second bar-mat reinforcement
Laying, such as the first bar-mat reinforcement of fixed copper of diaphragm wall, and by drainpipe bending in the second bar-mat reinforcement；
Step 6: the formwork erection on the outside of the second bar-mat reinforcement, and pour quick-hardening cement concrete in inside and form the second concrete walls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810442380.2A CN108385704A (en) | 2018-05-10 | 2018-05-10 | A kind of diaphram wall piping plugging structure and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810442380.2A CN108385704A (en) | 2018-05-10 | 2018-05-10 | A kind of diaphram wall piping plugging structure and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108385704A true CN108385704A (en) | 2018-08-10 |
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ID=63070881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810442380.2A Pending CN108385704A (en) | 2018-05-10 | 2018-05-10 | A kind of diaphram wall piping plugging structure and its construction method |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764397A (en) * | 2020-05-28 | 2020-10-13 | 浙江土工岩土科技有限公司 | Underground diaphragm wall plugging device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09144016A (en) * | 1995-11-28 | 1997-06-03 | Takenaka Komuten Co Ltd | Execution method of concrete in underground water leakage section |
| CN202000365U (en) * | 2011-03-04 | 2011-10-05 | 长江航运规划设计院 | Seepage-proof structure for underground continuous wall |
| CN202787329U (en) * | 2012-08-17 | 2013-03-13 | 浙江省东海建设有限公司 | Large leakage treatment structure for underground continuous wall |
| CN208441115U (en) * | 2018-05-10 | 2019-01-29 | 南通航运职业技术学院 | A kind of diaphram wall piping plugging structure |
-
2018
- 2018-05-10 CN CN201810442380.2A patent/CN108385704A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09144016A (en) * | 1995-11-28 | 1997-06-03 | Takenaka Komuten Co Ltd | Execution method of concrete in underground water leakage section |
| CN202000365U (en) * | 2011-03-04 | 2011-10-05 | 长江航运规划设计院 | Seepage-proof structure for underground continuous wall |
| CN202787329U (en) * | 2012-08-17 | 2013-03-13 | 浙江省东海建设有限公司 | Large leakage treatment structure for underground continuous wall |
| CN208441115U (en) * | 2018-05-10 | 2019-01-29 | 南通航运职业技术学院 | A kind of diaphram wall piping plugging structure |
Non-Patent Citations (2)
| Title |
|---|
| 蔡文盛;: "基坑围护结构渗漏的堵漏措施", 探矿工程(岩土钻掘工程), no. 03 * |
| 黄辉: "浅析深基坑工程渗漏原因及其防治措施", 广东土木与建筑, no. 01, pages 47 - 49 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764397A (en) * | 2020-05-28 | 2020-10-13 | 浙江土工岩土科技有限公司 | Underground diaphragm wall plugging device and method |
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