CN208441115U

CN208441115U - A kind of diaphram wall piping plugging structure

Info

Publication number: CN208441115U
Application number: CN201820693574.5U
Authority: CN
Inventors: 赵苏政; 崔桂官; 吉顺莉; 郑红娟; 倪飞; 房世龙; 施小飞; 史誉州; 朱亮; 周春煦
Original assignee: Nantong Shipping College
Current assignee: Nantong Shipping College
Priority date: 2018-05-10
Filing date: 2018-05-10
Publication date: 2019-01-29
Anticipated expiration: 2028-05-10

Abstract

The utility model discloses a kind of diaphram wall piping plugging structures, including two 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 steel mesh in concave shape is equipped with outside the break, its surrounding is welded with expansion bolt and fixes with two sides diaphram wall, and more drainpipes pass through the first steel mesh, the first concrete walls are successively arranged on the outside of first steel mesh, second steel mesh and the second concrete walls, and drainpipe bending at the second steel mesh extends to ground connection draining vacuum pump.

Description

A kind of diaphram wall piping plugging structure

Technical field

The utility model relates to the technical field of construction such as house deep basal pit, Metro Deep Excavation, and in particular to a kind of underground company Continuous wall coil gushes plugging structure.

Background technique

There are many construction method of underground continuous wall, and diaphram wall will mostly form by several times, for cement mixing pile-type underground Diaphragm wall is sometimes because whitewashing is 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 transports 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, substitutes former continuous underground wall structure, this method with new diaphram wall Project amount is big, and the time is long, at high cost, can't quickly be blocked, security risk is higher.

When in part, diaphram wall seeps water, if diaphram wall water percolating capacity is few and water quality in contain sand or mud amount It is few, it can be punched using side, be packed into the aqueduct for having switch valve, sealed on aqueduct periphery using rapid-hardening leak stopping king It is stifled, wait block after intensity reaches certain value at completion and 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.

Utility model content

The purpose of this utility model is to provide one kind can lower cost and quick blocking diaphram wall seam crossing it is big Measure a kind of piping plugging structure and its construction method of leak.

To achieve the above object, the utility model provides the following technical solutions: a kind of diaphram wall piping plugging structure, Including two sides diaphram wall, seepage point between diaphragm wall located underground, more drainpipes being inserted in seepage point, and drain Building synthetic material is equipped with around pipe front end, inside is coated with leak stopping king or pouch quick-hardening cement, is equipped with outside the break In the first steel mesh of concave shape, surrounding is welded with expansion bolt and fixes with two sides diaphram wall, and more drainpipes are worn The first steel mesh is crossed, the first concrete walls, the second steel mesh and the second concrete walls are successively arranged on the outside of the first steel mesh, and arrange Water pipe bending at the second steel mesh extends to ground connection draining vacuum pump.

Preferably, the expansion bolt is mounted in diaphram wall in advance, welded with the first steel mesh.

Preferably, second steel mesh and the diaphram wall of two sides are fixed by expansion bolt.

Preferably, the size of first steel mesh is greater than the excavated section size on seepage point periphery.

Compared with prior art, the revealed a kind of diaphram wall piping plugging structure of the utility model has as follows The utility model has the advantages that

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, and it is at low cost, Especially in cement mixing pile-type construction of diaphragm wall, effect is particularly evident, can quickly solve the problems, such as piping, ensures ground Safety of the lower diaphragm wall in construction.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the cross-sectional view of A-A in Fig. 1；

Fig. 3 is the cross-sectional view of B-B in Fig. 1.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Fig. 1 ~ 3, a kind of revealed diaphram wall piping plugging structure of the utility model is realized and is connected to underground The piping situation that seam crossing occurs between continuous wall carries out quick blocking, specifically includes two sides diaphram wall 1, located underground continuous Seepage point 2 between wall is excavated to form section 3 at the seepage point, and level is inserted in the modeling of more drainpipe 4(hard in section Expect drainpipe), the building synthetic material 5(geotechnique for being coated with leak stopping king or packed quick-hardening cement is equipped with around the drainpipe front end Cloth or cotton), it is equipped with the first steel mesh 6 in concave shape in section periphery, size is greater than cross dimensions, the first steel mesh four Week, corresponding diaphram wall was provided with expansion bolt 7, was welded and fixed with the first steel mesh, and the periphery of the first steel mesh is successively poured The first concrete walls 8, the second steel mesh 9 and the second concrete walls 10 are built, wherein the second steel mesh surrounding is equally and mounted in company Continuous expansion bolt within the walls is welded and fixed, and drainpipe passes through the first steel mesh and the first concrete walls, in the second steel mesh Place's bending extends upwardly to bottom surface connection draining vacuum pump 11.

The water of seepage point is extracted completely 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, is excavated deep Degree is 1m, and more rigid plastics drainpipes are put on section horizontal plane；

Step 2: digging depth 30cm again with scuppit level in drainpipe surrounding, and pressed from both sides in surrounding using building synthetic material Miscellaneous rapid-hardening leak stopping king or small packed quick-hardening cement block, and flow out the water of piping mainly out of drainpipe；

Step 3: making the first steel mesh of concave character type, size while arranging rigid plastics drainpipe and blocking Size will cover the entire section of excavation, while be drilled on diaphram wall according to steel mesh size and reinforcement location, in hole Interior installation expansion bolt connects bolt and the first steel mesh using welding；

Step 4: drain level is disposed through the first steel mesh, the floating of the seepage point periphery of diaphram wall is cleared up Soil, then the shuttering on the outside of the first steel mesh, fast duralumin acid salt cement concrete is poured inside template and fills up excavation regions Form the first 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 steel The laying of muscle net, such as the first steel mesh of fixed copper of diaphragm wall, and by drainpipe bending in the second steel mesh；

Step 6: the formwork erection on the outside of the second steel mesh, and pour fast duralumin acid salt cement concrete in inside and form second Concrete walls.

If infiltration is big, when simple setting drainpipe is unable to satisfy 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 biggish pump of power is put into and carries out Auxiliary is drawn water, to guarantee to drain.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of diaphram wall piping plugging structure, it is characterised in that: including two 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 steel mesh in concave shape is equipped with outside the seepage point, surrounding is welded with Expansion bolt is fixed with two sides diaphram wall, and more drainpipes pass through the first steel mesh, successively set on the outside of the first steel mesh There are the first concrete walls, the second steel mesh and the second concrete walls, and drainpipe bending at the second steel mesh 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 steel mesh.

3. a kind of diaphram wall piping plugging structure according to claim 1, it is characterised in that: second steel mesh It is fixed with the diaphram wall of two sides by expansion bolt.

4. a kind of diaphram wall piping plugging structure according to claim 1, it is characterised in that: first steel mesh Size be greater than seepage point periphery excavated section size.