CN212388557U - Waterproof joint structure under sectional application condition of underground continuous wall and cast-in-place pile - Google Patents
Waterproof joint structure under sectional application condition of underground continuous wall and cast-in-place pile Download PDFInfo
- Publication number
- CN212388557U CN212388557U CN202020661612.6U CN202020661612U CN212388557U CN 212388557 U CN212388557 U CN 212388557U CN 202020661612 U CN202020661612 U CN 202020661612U CN 212388557 U CN212388557 U CN 212388557U
- Authority
- CN
- China
- Prior art keywords
- underground continuous
- continuous wall
- cast
- bored concrete
- concrete pile
- 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.)
- Withdrawn - After Issue
Links
- 239000004567 concrete Substances 0.000 claims abstract description 30
- 230000002787 reinforcement Effects 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 230000011218 segmentation Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009412 basement excavation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The utility model relates to a foundation ditch retaining structure technical field is a water joint structure under underground continuous wall and bored concrete pile segmentation application particularly, and underground continuous wall tip is equipped with the reservation recess, and reservation groove is equipped with the bored concrete pile, and the outer edge of bored concrete pile has one in along the section, interior edge section be located the reservation recess in and with the reservation recess pour integratively, be equipped with the steel reinforcement cage in the bored concrete pile, the steel reinforcement cage is close to one side of underground continuous wall and is equipped with the connecting piece, the stagnant water caulking strip by support hold in the surface of reservation recess. The utility model provides a structure and corresponding joint design that underground continuous wall and bored concrete pile segmentation were used can select suitable envelope according to factors such as geology, construction, environment pertinence, not only has good water-proof effects, and construction convenience, has compromise the coordination and the stability of deformation simultaneously, has realized that the water-proof effects and the rigidity of joint design between underground continuous wall and the bored concrete pile coordinate between unified.
Description
Technical Field
The utility model relates to a foundation ditch envelope technical field is a water joint structure under underground continuous wall and bored concrete pile segmentation application particularly.
Background
With the deepening of urbanization construction, urban land resources are more and more in shortage, and the underground structure is gradually paid attention. As one of the main construction methods of underground structures, the construction conditions and environmental requirements faced by foundation pit engineering are becoming more severe.
The foundation pit support structure generally comprises cast-in-place piles and underground continuous walls, wherein the cast-in-place piles are arranged at the edge of a pit of a foundation pit, and water or soft mud on the outer side of the foundation pit possibly flows into the foundation pit from the gap during excavation of the foundation pit due to the gap between the cast-in-place piles, so that the foundation pit support structure is not generally suitable for soft soil layers, particularly silt texture layers; the latter is to arrange a continuous reinforced concrete wall to prevent water or soft mud from flowing into the foundation pit, and the continuous wall has a rigidity greater than that of the pile, can resist the pressure of the rear soil layer, is suitable and safe for application in the soft soil layer, but has the disadvantage of higher interval.
Disclosure of Invention
An object of the utility model is to solve prior art's not enough, provide a underground continuous wall and bored concrete pile segmentation water joint structure under the applied condition for underground continuous wall and bored concrete pile can be segmented and use, and have good waterproof nature.
In order to realize above-mentioned purpose, design the water joint structure under underground continuous wall and bored concrete pile segmentation application, underground continuous wall tip be equipped with the reservation recess, reservation groove department be equipped with the bored concrete pile, just the outer edge of bored concrete pile have one interior along the section, interior along the section be located the reservation recess in and with the reservation recess pour integratively, the bored concrete pile in be equipped with the steel reinforcement cage, the steel reinforcement cage be close to one side of underground continuous wall and be equipped with the connecting piece, the outer end of connecting piece be equipped with the stagnant water caulking strip, the stagnant water caulking strip supported hold in the surface of reservation recess.
One side that steel reinforcement cage is close to underground continuous wall evenly is equipped with a plurality of connecting pieces from top to bottom, stagnant water caulking strip on correspond to the connecting piece be equipped with the trompil for be connected with the connecting piece.
The aperture of the open pores is 10mm, and the pitch between the adjacent open pores is 1 m.
The connecting piece is a connecting steel bar.
The diameter of the connecting piece is 10 mm.
The outer end of the connecting piece is also sleeved with a water stopping gasket at the joint of the water stopping caulking strip.
The water-stopping caulking strip adopts an expansion water-stopping strip.
The inner end surface of the reserved groove is arc-shaped.
Before the underground continuous wall is poured, a steel sleeve is preset at the end part of the underground continuous wall so as to form the reserved groove after the underground continuous wall is poured.
The depth of the bottom end of the cast-in-place pile is deeper than that of the bottom end of the underground continuous wall.
Beneficial effects of the utility model
The utility model provides an underground continuous wall and waterproofing membrane structure's under bored concrete pile segmentation application condition's advantage includes but not limited to: the utility model provides a structure and corresponding joint design that underground continuous wall and bored concrete pile segmentation were used can select suitable envelope according to factors such as geology, construction, environment pertinence, not only has good water-proof effects, and construction convenience, has compromise the coordination and the stability of deformation simultaneously, has realized that the water-proof effects and the rigidity of joint design between underground continuous wall and the bored concrete pile coordinate between unified.
Drawings
FIG. 1 is a schematic view of a middle underground diaphragm wall according to the present invention;
FIG. 2 is a schematic view of the hole forming of the cast-in-place pile of the present invention;
FIG. 3 is a schematic view of the connection between the diaphragm wall and the cast-in-place pile according to the present invention;
FIG. 4 is a schematic sectional view of the connection between the diaphragm wall and the cast-in-place pile according to the present invention;
in the figure: 1-underground diaphragm wall; 11-reserving a groove; 2-a sleeve; 3-pouring piles; 4-sealing up the caulking strip; 31-a reinforcement cage; 32-connecting the reinforcing steel bars; 33-inner edge section.
Detailed Description
The structure and principle of such a device will be apparent to those skilled in the art from the following further description of the invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
For foundation pit construction sites with uneven geological distribution, the same enclosing mode is applied, so that the construction is not economical and is not beneficial to construction. Therefore, in the present embodiment, an appropriate envelope is specifically selected according to factors such as geology, construction, and environment. In this embodiment, according to actual conditions, two maintenance structures, namely an underground continuous wall and a cast-in-place pile, are applied in sections to form a waterproof joint structure under the condition that the underground continuous wall and the cast-in-place pile are applied in sections, see fig. 1, which is a schematic diagram of the underground continuous wall, see fig. 2, which is a schematic diagram of a joint of the cast-in-place pile and the underground continuous wall, a sleeve is pre-installed at a connecting position of the underground continuous wall and the cast-in-place pile, the sleeve is pulled out when concrete cast in the underground continuous wall begins to be initially set, after the sleeve is pulled out, the cast-in-place pile is excavated along a groove reserved in the sleeve, and since the sleeve and the underground continuous wall are in an engagement shape, concrete of the cast-in-place pile after the sleeve is pulled out can. Meanwhile, the water-stopping caulking strip connected with the cast-in-place pile and the underground continuous wall is connected to a reinforcement cage of the cast-in-place pile through a connecting reinforcement, and the water-stopping caulking strip is abutted to the junction position of the cast-in-place pile and the underground continuous wall along with the reinforcement cage when the reinforcement cage is lowered.
Further combining with fig. 3, a reserved groove is arranged at the joint of the end part of the right end of the underground continuous wall, which is used for being connected with the cast-in-place pile, a cast-in-place pile is arranged at the outer side close to the reserved groove, and the depth of the bottom end of the cast-in-place pile is deeper than that of the bottom end of the underground continuous wall. The outer edge of the cast-in-place pile is provided with a part which is positioned in the reserved groove at one side close to the reserved groove, the part is called as an inner edge section, namely the projection of the inner edge section on the horizontal plane is positioned at the inner side of the groove formed by the projection of the reserved groove on the horizontal plane, pouring is carried out in the reserved groove so that the cast-in-place pile and the reserved groove are poured into a whole through the inner edge section, a reinforcement cage is further arranged in the cast-in-place pile, a connecting piece is arranged at one side of the reinforcement cage close to the underground continuous wall, a water-stopping caulking strip is arranged at the outer end of the connecting piece, namely one end of the connecting piece close to the underground continuous wall, and the water-stopping caulking strip is abutted to the surface of the reserved groove by. In addition, in the embodiment, before the underground continuous wall is poured, the steel sleeve is preset at the right end part of the underground continuous wall, so that the reserved groove is formed after the underground continuous wall is poured, and the inner end surface of the reserved groove is in an arc shape, so that the pouring contact area can be increased to a certain extent, and the reserved groove can be better connected with the cast-in-place pile.
Combine fig. 4, bored concrete pile's steel reinforcement cage be close to one side of underground continuous wall and evenly be equipped with a plurality of connecting pieces from top to bottom, be equipped with the connecting reinforcement who is equipped with 6 as the connecting piece from top to bottom in this embodiment, connecting reinforcement's the inner welds mutually with steel reinforcement cage, and the outer end is used for being connected with the stagnant water caulking strip, and stagnant water caulking strip on correspond to the connecting piece set up the position and be equipped with the trompil to the cover is established in the connecting piece outer end. And, preferably, the aperture of the trompil of stagnant water caulking strip and the diameter of connecting piece set up to 10mm, adjacent the pitch between the trompil and the interval between the adjacent connecting piece set up to 1m, and the outer end of connecting piece still can overlap and be equipped with the stagnant water packing ring in the junction with stagnant water caulking strip. In addition, the water stopping caulking strip can be an expansion water stopping strip.
Example 1
The embodiment provides the steps of the construction process of the waterproof joint under the condition of the sectional application of the underground continuous wall and the cast-in-place pile, so that the problem of water seepage among different enclosure connecting parts is solved through the process, the rigidity difference between the underground continuous wall and the cast-in-place pile is coordinated, and deformation is controlled.
Step a, grooving and pouring of the underground continuous wall, and forming a reserved groove for connecting with a cast-in-place pile, specifically comprising:
step a1., firstly, the groove is formed and cleaned at the position of the preset underground continuous wall, then the steel reinforcement cage of the underground continuous wall is put in, and the steel sleeve is put at the end part of the underground continuous wall, namely the joint position of the underground continuous wall and the cast-in-place pile.
And step a2, pouring concrete into the underground continuous wall groove.
Step a3. is to pull out the sleeve gradually to form a reserved groove along with the increase of the strength of the cast concrete from the initial setting of the concrete until the underground continuous wall is partially completed after the sleeve is completely pulled out.
After the underground continuous wall is poured, excavating at the position of the reserved groove and forming a cast-in-place pile poured integrally with the reserved groove, wherein the cast-in-place pile concrete comprises the following steps:
and b1, excavating the pile hole of the cast-in-place pile according to the position of the reserved groove, wherein the excavating mode can adopt manual excavation or mechanical excavation.
And b2., after the excavation is finished, placing the reinforcement cage into the reinforcement cage design position of the cast-in-place pile, and simultaneously, tightly pushing the water-stopping caulking strip connected with the reinforcement cage on the wall of the underground continuous wall, wherein the water-stopping caulking strip preferably uses an expansion water-stopping strip.
And b3., after the steel reinforcement cage is placed, pouring concrete into the pile hole of the cast-in-place pile, and finally realizing the connection between the underground continuous wall and the cast-in-place pile.
Example 2
In this embodiment, the water stopping caulking strips are connected with the reinforcement cage through connecting reinforcements, and the specific connection method is as follows:
step s1., uniformly perforating the water-stopping caulking strips from top to bottom in advance, wherein the recommended aperture is 10mm, and the vertical pitch is 1 m.
And step s2, welding connecting steel bars on the steel reinforcement cage of the cast-in-place pile corresponding to the positions of the openings of the water-stopping caulking strips, wherein the size of each connecting steel bar is phi 10mm, and the positions of the connecting steel bars are consistent with the positions of the openings of the water-stopping caulking strips.
S3. the sealing strip is fixed with the connecting steel bar by binding, and the sealing strip is sleeved on the connecting steel bar by a sealing washer through the open hole on one side.
Claims (10)
1. The utility model provides a waterproof connection structure under underground continuous wall and bored concrete pile segmentation application, its characterized in that underground continuous wall tip be equipped with the reservation recess, reservation groove department be equipped with the bored concrete pile, just the outer edge of bored concrete pile have one interior along the section, interior along the section be located the reservation recess in and with the reservation recess pour integratively, the bored concrete pile in be equipped with the steel reinforcement cage, the steel reinforcement cage be close to one side of underground continuous wall and be equipped with the connecting piece, the outer end of connecting piece be equipped with the stagnant water caulking strip, stagnant water caulking strip supported hold in the surface of reservation recess.
2. The waterproof joint structure for underground continuous wall and cast-in-place pile sectional application as claimed in claim 1, wherein the reinforcement cage is uniformly provided with a plurality of connectors from top to bottom on a side close to the underground continuous wall, and the water-stopping caulking strip is provided with openings corresponding to the connectors for connection with the connectors.
3. The waterproof structure of the underground continuous wall and cast-in-place pile segment application as claimed in claim 2, wherein the diameter of the openings is 10mm, and the distance between adjacent openings is 1 m.
4. The waterproof joint structure for the sectional application of underground continuous walls and cast-in-place piles as claimed in claim 1, wherein the connecting members are connecting reinforcing bars.
5. The waterproof joint structure for the sectional application of underground continuous wall and cast-in-place pile according to claim 1, wherein the diameter of the connecting member is 10 mm.
6. The waterproof structure of claim 1, wherein the outer end of the connecting member is further provided with a water-stop gasket at the joint with the water-stop caulking strip.
7. The waterproof joint structure for the sectional application of the underground continuous wall and the cast-in-place pile as claimed in claim 1, wherein the sealing caulking strip is an expansion sealing strip.
8. The waterproof joint structure for the sectional application of the underground continuous wall and the cast-in-place pile as claimed in claim 1, wherein the inner end surface of the reserved groove is arc-shaped.
9. The waterproof joint structure for the sectional application of the underground continuous wall and the cast-in-place pile as claimed in claim 8, wherein a steel sleeve is pre-installed at the end of the underground continuous wall before the underground continuous wall is poured, so as to form the pre-prepared groove after the underground continuous wall is poured.
10. The waterproof structure of the underground diaphragm wall and the bored concrete pile in the sectional application according to claim 1, wherein the lower end of the bored concrete pile is located at a depth deeper than the lower end of the underground diaphragm wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020661612.6U CN212388557U (en) | 2020-04-27 | 2020-04-27 | Waterproof joint structure under sectional application condition of underground continuous wall and cast-in-place pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020661612.6U CN212388557U (en) | 2020-04-27 | 2020-04-27 | Waterproof joint structure under sectional application condition of underground continuous wall and cast-in-place pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212388557U true CN212388557U (en) | 2021-01-22 |
Family
ID=74249092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020661612.6U Withdrawn - After Issue CN212388557U (en) | 2020-04-27 | 2020-04-27 | Waterproof joint structure under sectional application condition of underground continuous wall and cast-in-place pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212388557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111424681A (en) * | 2020-04-27 | 2020-07-17 | 中铁上海工程局集团华海工程有限公司 | Waterproof joint structure under sectional application condition of underground continuous wall and cast-in-place pile and construction method thereof |
-
2020
- 2020-04-27 CN CN202020661612.6U patent/CN212388557U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111424681A (en) * | 2020-04-27 | 2020-07-17 | 中铁上海工程局集团华海工程有限公司 | Waterproof joint structure under sectional application condition of underground continuous wall and cast-in-place pile and construction method thereof |
| CN111424681B (en) * | 2020-04-27 | 2024-03-08 | 中铁上海工程局集团华海工程有限公司 | Waterproof joint structure under condition of segmented application of underground diaphragm wall and cast-in-place pile and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111424681A (en) | Waterproof joint structure under sectional application condition of underground continuous wall and cast-in-place pile and construction method thereof | |
| CN102061710B (en) | Diaphragm wall joint and manufacturing method of diaphragm wall | |
| CN103015456B (en) | Rapid pit-in-pit form erecting method in foundation slab of buried concrete structure | |
| CN108086328A (en) | A kind of dynamic sealing, assembled building enclosure and its construction method from recharge | |
| CN111827331A (en) | Supporting structure with seepage-proofing structure combined with underground continuous wall and construction method thereof | |
| CN105421497A (en) | Water-proof construction method for connected nodes of foundation slab and ground wall in composite surround system | |
| CN212388557U (en) | Waterproof joint structure under sectional application condition of underground continuous wall and cast-in-place pile | |
| CN105484277A (en) | Component for tubular well precipitation construction in elevator foundation pit or sump and construction method | |
| CN205205844U (en) | Member is used in construction of tubular well precipitation in elevator foundation ditch or sump pit | |
| CN212641468U (en) | Pit-in-pit rapid construction structure | |
| CN108149694B (en) | A kind of wall width based on underground wall body construction longitudinally splices subsidence process | |
| CN213867894U (en) | Open caisson reserved hole door plugging support structure | |
| CN207143965U (en) | Steel plate concrete combined type anti-floating water sealing structure | |
| CN206204929U (en) | A kind of lattice underground continuous wall connector structure | |
| CN204825916U (en) | Highly permeable stratum deep basal pit back cover stagnant water structure | |
| CN212223974U (en) | Underground continuous wall and back cover concrete's leak protection connection structure | |
| CN106498951A (en) | A kind of shaft excavation construction method | |
| CN2425952Y (en) | Mud-pressing, soil-retaining and water-stopping foundation pit supporting and mud-pressing apparatus after pile pouring | |
| CN213572008U (en) | Supporting construction that seepage prevention structure combines underground continuous wall | |
| CN213926110U (en) | River course transformation engineering underground continuous wall of intercepting water and preventing seepage | |
| CN106284298B (en) | Constitute the diaphram wall of piping lane side wall | |
| CN110106898A (en) | A kind of reinforcement means of sea soft soil foundation Steel Sheet Pile cofferdam unstability | |
| CN111206594A (en) | Foundation pit supporting construction method | |
| CN218437203U (en) | Water plugging structure for T-shaped joint part of underground diaphragm wall | |
| CN204780965U (en) | Complicated geology and existing system construction structures that struts of environment access subway |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20210122 Effective date of abandoning: 20240308 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20210122 Effective date of abandoning: 20240308 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |