CN216108446U - Anti-seepage fore shaft pipe structure - Google Patents
Anti-seepage fore shaft pipe structure Download PDFInfo
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- CN216108446U CN216108446U CN202121482440.7U CN202121482440U CN216108446U CN 216108446 U CN216108446 U CN 216108446U CN 202121482440 U CN202121482440 U CN 202121482440U CN 216108446 U CN216108446 U CN 216108446U
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- reinforcement cage
- pipe body
- water
- water bag
- seepage
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Abstract
The utility model relates to the field of underground continuous wall construction, in particular to an anti-seepage fore shaft structure, which comprises a pipe body, a reinforcement cage and a water bag; the pipe body and the reinforcement cage are coaxially arranged and are positioned on the inner side of the reinforcement cage; the upper end of the pipe body is connected with the reinforcement cage; the water bag is arranged between the pipe body and the reinforcement cage; the reinforcement cage and the water sac are arranged along the axis of the pipe body in the full length mode; the water bag covers the outer side face of the pipe body, and when the water bag is filled with water, the surface of the water bag is attached to the inner side face of the reinforcement cage, so that concrete located on one side of the anti-seepage locking pipe structure is prevented from flowing around to the other side. The continuous wall structure is simple in structure, easy to install and disassemble and capable of effectively improving the construction efficiency of the continuous wall.
Description
Technical Field
The utility model relates to the field of underground continuous wall construction, in particular to an anti-seepage fore shaft pipe structure.
Background
With the rapid development of urban rail transit, deep foundation pits on urban main roads are more and more operated, most of the deep foundation pits are wading sections, and the underground diaphragm wall enclosure structure is widely applied to engineering entities in order to ensure the waterproof quality of the underground diaphragm wall with the deep foundation pits with large underground water depth. It can be used as permanent bearing and retaining structure, and also can be used for water-stopping and seepage-proofing. The wall body of each unit groove section of the underground continuous wall should meet the design requirement, the connection structure between the unit groove sections forming the underground continuous wall is a key core link of an underground continuous wall system, and the groove section joint form and the construction method are core technologies of underground continuous wall construction. The underground diaphragm wall joint is used as a weak link of the underground diaphragm wall, and the anti-leakage effect of the whole underground diaphragm wall is directly influenced by the quality of the treatment of the underground diaphragm wall joint, so that the safety of the whole foundation pit is influenced. It is necessary to properly dispose of underground diaphragm wall joints.
However, the traditional fore shaft pipe is in direct contact with concrete during construction, so that the fore shaft pipe is easily extruded by the concrete to deform in the concrete pouring process, and meanwhile, the fore shaft pipe is difficult to pull out.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the technical problems to be solved by the utility model are as follows: the problem of the fore shaft pipe yielding and be difficult to extract in the work progress is solved.
In order to solve the technical problems, the utility model adopts the technical scheme that: an anti-seepage fore shaft structure comprises a pipe body, a reinforcement cage and a water sac;
the pipe body and the reinforcement cage are coaxially arranged and are positioned on the inner side of the reinforcement cage;
the upper end of the pipe body is connected with the reinforcement cage;
the water bag is arranged between the pipe body and the reinforcement cage;
the reinforcement cage and the water sac are arranged along the axis of the pipe body in the full length mode;
the water bag covers the outer side face of the pipe body, and when the water bag is filled with water, the surface of the water bag is attached to the inner side face of the reinforcement cage, so that concrete located on one side of the anti-seepage locking pipe structure is prevented from flowing around to the other side.
Wherein, the steel reinforcement cage adopts the mode of spot welding to link to each other with the body.
The steel bar cage fixing device comprises a pipe body and a fixing device, wherein the fixing device is arranged at the upper end of the pipe body and is in cross connection with the steel bar cage.
Wherein, the surface of the water sac is provided with a water inlet and a water outlet.
The upper end of the pipe body is provided with a connecting structure, and the connecting structure is used for being connected with external equipment.
The utility model has the beneficial effects that: a water bag is arranged between the pipe body and the steel reinforcement cage, and the surface of the water bag can be attached to the inner side surface of the steel reinforcement cage in a water filling state to compress the groove wall, so that the water bag can prevent the concrete from contacting the pipe body, and the phenomenon that the pipe body deforms due to the fact that the concrete extrudes the pipe body is avoided; the water bag is attached to the wall of the groove tightly to prevent the concrete on one side of the anti-seepage fore shaft structure from flowing to the other side, so that the anti-streaming effect of the anti-seepage fore shaft structure is effectively improved; after concrete is poured and molded, water in the water bag can be pumped out, so that constructors can conveniently pump out the locking notch pipe from the reinforcement cage, and the construction efficiency is effectively improved; meanwhile, compared with the traditional fore shaft pipe, the anti-seepage fore shaft pipe structure provided by the utility model has the advantages of less steel consumption, reusability, simple structure, convenience in installation and the like.
Drawings
FIG. 1 is a schematic view of the operation of an anti-permeation fore-aft pipe structure in an embodiment of the present invention.
Description of reference numerals: 1. a pipe body; 2. a water bladder; 3. a reinforcement cage; 4. and (3) concrete.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The most key concept of the utility model is as follows: through the surface cladding water pocket at the body to improve the prevention of seepage and pass through the anti-streaming ability of fore shaft tubular construction, through the water pocket with body and concrete separation, take place to warp in order to avoid the body to receive the concrete extrusion, and extract in order to realize the quick of fore shaft pipe through taking out the liquid in the water pocket.
Referring to fig. 1, the present invention is an anti-seepage fore shaft structure, including a pipe body 1, a reinforcement cage 3 and a water bag 2; the pipe body 1 and the reinforcement cage 3 are coaxially arranged and are positioned on the inner side of the reinforcement cage 3; the upper end of the pipe body 1 is connected with the reinforcement cage 3; the water bag 2 is arranged between the pipe body 1 and the reinforcement cage 3; the reinforcement cage 3 and the water sac 2 are both arranged along the axial line of the pipe body 1; the water bag 2 covers the outer side face of the pipe body 1, and when the water bag 2 is filled with water, the surface of the water bag 2 is attached to the inner side face of the reinforcement cage 3, so that the concrete 4 on one side of the anti-seepage locking opening pipe structure is prevented from flowing around to the other side.
The working principle of the utility model is as follows: and vertically placing the anti-seepage fore shaft pipe structure at one end or two ends of the groove section through a crane, and pouring concrete 4 into the groove section. Specifically, the diameter of the reinforcement cage 3 is equal to the groove width of the groove, so that when the anti-seepage fore-and-aft pipe structure is fixed in the groove section, the outer side surface of the reinforcement cage 3 is attached to the groove surface of the groove section; and then, injecting water into the water bag 2 by using a water injection machine to expand the water bag 2, wherein the surface of one part of the water bag 2 is attached to the inner side surface of the reinforcement cage 3, and the surface of the other part of the water bag passes through meshes of the reinforcement cage 3 and is closely attached to the groove surface, so that the concrete 4 is prevented from flowing from one side to the other side of the anti-seepage locked pipe structure.
After the concrete 4 is poured and formed, a constructor takes out water in the water bag 2 to reduce the volume of the water bag 2, then removes the connection between the pipe body 1 and the reinforcement cage 3, and finally takes out the pipe body 1 and the water bag 2 from the reinforcement cage 3 through a crane to finish the use of the anti-seepage fore shaft structure.
Preferably, the water bag 2 is fixed on the outer side wall of the tube body 1 in an adhering manner.
The water bag 2 is a hollow columnar structure with two open ends in the axial direction, the water bag 2 and the tube body 1 are arranged to have the same length as each other in the whole length, namely the water bag 2 completely covers the outer side wall of the tube body 1.
From the above description, the beneficial effects of the present invention are: the water bag 2 is arranged between the pipe body 1 and the reinforcement cage 3, and the surface of the water bag 2 can be attached to the inner side surface of the reinforcement cage 3 to compress the groove wall in a water filling state, so that the water bag 2 can prevent the concrete 4 from contacting the pipe body 1, and the phenomenon that the pipe body 1 is deformed due to the fact that the concrete 4 extrudes the pipe body 1 is avoided; the water bag 2 is tightly attached to the wall of the groove to prevent the concrete 4 positioned on one side of the anti-seepage fore shaft structure from flowing to the other side, so that the anti-streaming effect of the anti-seepage fore shaft structure is effectively improved; after the concrete 4 is poured and formed, water in the water bag 2 can be pumped out, so that constructors can conveniently pump out the locking notch pipe from the reinforcement cage 3, and the construction efficiency is effectively improved; meanwhile, compared with the traditional fore shaft pipe, the anti-seepage fore shaft pipe structure provided by the utility model has the advantages of less steel consumption, reusability, simple structure, convenience in installation and the like.
Further, the reinforcement cage 3 is connected with the pipe body 1 in a spot welding mode.
As can be seen from the above description, the reinforcement cage 3 is connected to the tubular body 1 by spot welding to improve the connection strength therebetween, while keeping the two in a coaxial state all the time.
Further, still include fixing device, fixing device set up in the upper end of body 1 and with steel reinforcement cage 3 looks cross-over connection.
In one embodiment, the fixing device is a sand bag, and the sand bag is placed at the upper ends of the pipe body 1 and the reinforcement cage 3 to clamp the reinforcement cage 3 and prevent the reinforcement cage 3 from shifting to the overexcavation side in the pouring process of the concrete 4.
Further, a water inlet and a water outlet are arranged on the surface of the water bag 2.
In one embodiment, the water inlet and the water outlet of the water bag 2 are combined into a single opening, that is, a water pump or a water injection machine is connected with the opening on the surface of the water bag 2, so as to realize the rapid water injection and the rapid water pumping of the water bag 2, and effectively improve the construction efficiency.
Further, the upper end of the pipe body 1 is provided with a connecting structure, and the connecting structure is used for being connected with external equipment.
Optionally, the connecting structure is a through hole horizontally penetrating the upper end of the pipe body 1, so that a lifting rope of the lifting machine penetrates through the through hole to lift the pipe body 1 and the capsule.
Example one
Referring to fig. 1, an anti-seepage fore shaft structure comprises a pipe body 1, a reinforcement cage 3 and a water bag 2;
the pipe body 1 and the reinforcement cage 3 are coaxially arranged and are positioned on the inner side of the reinforcement cage 3;
the upper end of the pipe body 1 is connected with the reinforcement cage 3;
the water bag 2 is arranged between the pipe body 1 and the reinforcement cage 3;
the reinforcement cage 3 and the water sac 2 are both arranged along the axial line of the pipe body 1;
the water bag 2 covers the outer side face of the pipe body 1, and when the water bag 2 is filled with water, the surface of the water bag 2 is attached to the inner side face of the reinforcement cage 3 so as to prevent the concrete 4 positioned on one side of the anti-seepage locking opening pipe structure from flowing around to the other side;
the reinforcement cage 3 is connected with the pipe body 1 in a spot welding mode;
the anti-seepage fore shaft structure further comprises a sand bag, wherein the sand bag is arranged at the upper end of the pipe body 1 and is in cross connection with the steel reinforcement cage 3 so as to clamp the steel reinforcement cage 3;
a water inlet and a water outlet are formed in the surface of the water bag 2;
the upper end of the pipe body 1 is provided with a through hole for a lifting rope of a lifting machine to pass through the through hole to lift the pipe body 1 and the water bag 2.
In conclusion, the utility model provides an anti-seepage fore shaft structure, wherein the water bag 2 is arranged between the pipe body 1 and the steel reinforcement cage 3, and the surface of the water bag 2 can be attached to the inner side surface of the steel reinforcement cage 3 to compress the groove wall in a water filling state, so that the water bag 2 can prevent the concrete 4 from contacting the pipe body 1, and the condition that the pipe body 1 is deformed due to the extrusion of the concrete 4 on the pipe body 1 is avoided; the water bag 2 is tightly attached to the wall of the groove to prevent the concrete 4 positioned on one side of the anti-seepage fore shaft structure from flowing to the other side, so that the anti-streaming effect of the anti-seepage fore shaft structure is effectively improved; after the concrete 4 is poured and formed, water in the water bag 2 can be pumped out, so that constructors can conveniently pump out the locking notch pipe from the reinforcement cage 3, and the construction efficiency is effectively improved; meanwhile, compared with the traditional fore shaft pipe, the anti-seepage fore shaft pipe structure provided by the utility model has the advantages of less steel consumption, reusability, simple structure, convenience in installation and the like.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (5)
1. An anti-seepage fore shaft structure is characterized by comprising a pipe body, a reinforcement cage and a water sac;
the pipe body and the reinforcement cage are coaxially arranged and are positioned on the inner side of the reinforcement cage;
the upper end of the pipe body is connected with the reinforcement cage;
the water bag is arranged between the pipe body and the reinforcement cage;
the reinforcement cage and the water sac are arranged along the axis of the pipe body in the full length mode;
the water bag covers the outer side face of the pipe body, and when the water bag is filled with water, the surface of the water bag is attached to the inner side face of the reinforcement cage, so that concrete located on one side of the anti-seepage locking pipe structure is prevented from flowing around to the other side.
2. The anti-permeation fore-shaft structure according to claim 1, wherein the reinforcement cage is connected to the pipe body by spot welding.
3. The anti-permeation fore-aft structure according to claim 1, further comprising a fixing device disposed at an upper end of the tubular body and bridging the reinforcement cage.
4. The anti-permeation fore-shaft structure according to claim 1, wherein the surface of the water bladder is provided with a water inlet and a water outlet.
5. The anti-permeation fore-shaft structure according to claim 1, wherein the upper end of the pipe body is provided with a connection structure for connecting with an external device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121482440.7U CN216108446U (en) | 2021-07-01 | 2021-07-01 | Anti-seepage fore shaft pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121482440.7U CN216108446U (en) | 2021-07-01 | 2021-07-01 | Anti-seepage fore shaft pipe structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216108446U true CN216108446U (en) | 2022-03-22 |
Family
ID=80721411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121482440.7U Active CN216108446U (en) | 2021-07-01 | 2021-07-01 | Anti-seepage fore shaft pipe structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216108446U (en) |
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2021
- 2021-07-01 CN CN202121482440.7U patent/CN216108446U/en active Active
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