CN219654694U - Prefabricated circular well wall structure - Google Patents
Prefabricated circular well wall structure Download PDFInfo
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- CN219654694U CN219654694U CN202321369145.XU CN202321369145U CN219654694U CN 219654694 U CN219654694 U CN 219654694U CN 202321369145 U CN202321369145 U CN 202321369145U CN 219654694 U CN219654694 U CN 219654694U
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- prefabricated well
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- ribs
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- 239000002689 soil Substances 0.000 claims abstract description 28
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000004568 cement Substances 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000002390 adhesive tape Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 5
- 238000000275 quality assurance Methods 0.000 abstract description 2
- 238000005266 casting Methods 0.000 abstract 1
- 239000002002 slurry Substances 0.000 description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a prefabricated circular well wall structure, which comprises a prefabricated well wall (1), soil nails (5) and annular ribs (6), wherein connecting pieces are arranged at two ends of the prefabricated well wall (1) so that the left and right adjacent prefabricated well walls (1) are connected into a ring shape; the soil nails (5) are anchored in an annular shape, annular ribs (6) are arranged on the soil nails (5), pre-buried ribs (3) are arranged on the prefabricated well wall (1), and the pre-buried ribs (3) are hung on the annular ribs (6); the upper end face and the lower end face of the prefabricated well wall (1) are provided with longitudinal preformed holes (2), and longitudinal connecting members (4) are arranged in the prefabricated well wall in a penetrating mode, so that the upper prefabricated well wall and the lower prefabricated well wall (1) are connected into a whole. Adjacent prefabricated well walls (1) are connected into a ring shape through connecting pieces, the upper prefabricated well wall (1) and the lower prefabricated well wall (1) are connected through longitudinal connecting members (4), and the upper prefabricated well walls and the lower prefabricated well walls are fixedly hung on the ring-shaped ribs (6) through embedded ribs (3). The problems of long construction period, complex working procedures, long exposure time of the wall of the foundation pit, high risk and difficult quality assurance of the existing casting type well wall structure are solved.
Description
Technical Field
The utility model relates to a prefabricated circular well wall structure, and belongs to the technical field of underground engineering.
Background
With the acceleration of the development speed of town, land resources are more and more tense, and the situation of supply and demand and high price of the ground space appears, so that some areas are not available. The development and utilization of the underground space provide possibility for relieving urban land shortage, improving urban environment and traffic conditions, saving energy, protecting environment and the like.
The underground structure in the form of a shaft can be applied to vertical connection channels and cylindrical foundations of underground spaces such as underground garages, underground reservoirs, underground granaries, underground storage spaces, tunnels and the like. However, because the underground structure needs large earthwork excavation, soil taking and slope placing, the construction operation area is far larger than the occupied area of the building, which is difficult to realize in urban areas with limited construction sites.
At present, a cast-in-situ well wall structure is generally adopted for construction of a large-scale shaft well wall structure of an underground space, so that the construction period is long, the wet working procedure is complex, the exposure time of the wall of a foundation pit is long, the safety risk is high, the quality is difficult to guarantee, and the practical requirement cannot be practically met.
Disclosure of Invention
The utility model aims to solve the technical problems that the existing cast-in-situ well wall structure has long construction period, complex operation procedure, long exposure time of the wall of a foundation pit, high risk and difficult quality assurance.
The technical scheme adopted for solving the technical problems is as follows: the prefabricated circular well wall structure comprises a plurality of prefabricated well walls, soil nails and annular ribs, wherein the prefabricated well walls are of arc-shaped block structures, and connecting pieces are respectively arranged at two ends of the prefabricated well walls, so that left and right adjacent prefabricated well walls are connected into a ring shape; the soil nails are anchored in the soil layer at intervals in a ring shape, ring-shaped ribs are arranged on the soil nails, embedded ribs are arranged on the outer wall of the prefabricated well wall, and the embedded ribs are hung on the ring-shaped ribs; the upper end face and the lower end face of the prefabricated well wall are provided with penetrating longitudinal reserved holes at intervals, and longitudinal connecting components are arranged in the longitudinal reserved holes in a penetrating mode, so that the prefabricated well walls adjacent to each other vertically are connected into a whole.
The connecting piece in the structure is an adaptive longitudinal convex groove and a longitudinal groove, the longitudinal convex groove and the longitudinal groove are respectively arranged at two ends of the prefabricated well wall, and the left prefabricated well wall and the right prefabricated well wall are connected.
Furthermore, in the structure, the upper end face and the lower end face of the prefabricated well wall are provided with the annular convex grooves and the annular grooves which are matched, so that the prefabricated well wall on the upper side and the lower side can be connected through the annular convex grooves and the annular grooves.
Furthermore, in the structure, water stop adhesive tapes are arranged at the joint of the longitudinal convex groove and the longitudinal groove and at the inner side and the outer side of the joint of the annular convex groove and the annular groove.
The structure further comprises vertical ribs, wherein the vertical ribs are axially arranged along the annular ribs and are sequentially connected with the annular ribs to form a reinforcement cage.
Furthermore, in the structure, the embedded ribs are of a T-shaped structure, the number of the embedded ribs on each prefabricated well wall is 4, and the embedded ribs are arranged in a rectangular shape.
In the structure, the longitudinal connecting members and the longitudinal reserved holes are arranged at intervals, and cement paste is filled in the gaps.
The longitudinal connecting members in the structure are steel bars or steel pipes and are formed by threaded or welded connection.
Wherein, the upper and lower adjacent prefabricated well walls in the structure are butted by adopting staggered joints, and the longitudinal reserved holes of the upper and lower prefabricated well walls are communicated.
Further, in the structure, the distance between the center of the outermost longitudinal preformed hole of the prefabricated well wall and the end face of the prefabricated well wall is half of the center distance between two adjacent longitudinal preformed holes.
The beneficial effects of the utility model are as follows: the circular well wall structure of this structure is assembled by prefabricated well wall staggered joint in proper order and is formed, connects into annular with prefabricated well wall through the connecting piece, and the prefabricated well wall staggered joint that will be adjacent from top to bottom is spliced through longitudinal connecting component, and places the pre-buried muscle on the prefabricated well wall in and articulate on the annular muscle on the soil nail and realize fixedly, slip casting is filled up can. The prefabricated well wall of the structure is prefabricated in sections in a factory according to design requirements, only hoisting and assembling are needed on site, the excavation enclosure exposure time of a shaft foundation pit is reduced, the complex process of a wet operation procedure is simplified, the labor intensity of workers is reduced, the engineering quality is easy to control, the construction speed is high, the cost is low, the environment is protected, the construction quality can be effectively ensured by the construction method of centralized prefabrication and on-site assembling, the construction period is shortened, and good social effect and economic effect are achieved.
Drawings
FIG. 1 is a schematic diagram of a connecting section structure of an upper and a lower prefabricated well walls according to the utility model.
FIG. 2 is a schematic diagram of the connection structure of the upper and lower prefabricated well walls of the present utility model.
FIG. 3 is an enlarged schematic view of the structure I in FIG. 1 according to the present utility model.
Fig. 4 is an enlarged schematic view of the structure III in fig. 1 according to the present utility model.
Fig. 5 is a schematic cross-sectional view of the present utility model.
Fig. 6 is a schematic top view of the present utility model.
Fig. 7 is an enlarged schematic view of the structure at II in fig. 6 according to the present utility model.
Marked in the figure as: 1 prefabricated well wall, 2 longitudinal preformed holes, 3 pre-buried ribs, 4 longitudinal connecting members, 5 soil nails, 6 annular ribs, 7 vertical ribs, 8 water stop adhesive tapes, 9 annular convex grooves, 10 annular grooves, 11 longitudinal convex grooves and 12 longitudinal grooves.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 7, the prefabricated circular well wall structure comprises a plurality of prefabricated well walls 1, soil nails 5 and annular ribs 6, wherein the prefabricated well walls 1 are of arc-shaped block structures, and connecting pieces are respectively arranged at two ends of the prefabricated well walls 1, so that left and right adjacent prefabricated well walls 1 are connected into a ring shape; the soil nails 5 are anchored in the soil layer at intervals in a ring shape, ring-shaped ribs 6 are arranged on the soil nails 5, pre-buried ribs 3 are arranged on the outer wall of the prefabricated well wall 1, and the pre-buried ribs 3 are hung on the ring-shaped ribs 6; the upper end face and the lower end face of the prefabricated well wall 1 are provided with penetrating longitudinal reserved holes 2 at intervals, and longitudinal connecting members 4 are arranged in the longitudinal reserved holes 2 in a penetrating mode, so that the prefabricated well walls 1 adjacent to each other vertically are connected into a whole. The book is provided withAs will be appreciated by those skilled in the art, the present structure is assembled from a plurality of prefabricated well walls 1 spliced longitudinally and circumferentially. The two end surfaces of the prefabricated well wall 1 are provided with connecting pieces, and the left and right adjacent prefabricated well walls 1 can be connected into a ring shape through the connecting pieces; the upper end surface and the lower end surface of the prefabricated well wall 1 are further provided with a through longitudinal preformed hole 2, the longitudinal connecting component 4 is arranged in the longitudinal preformed hole 2 in a penetrating way, so that the upper prefabricated well wall 1 and the lower prefabricated well wall 1 are connected, and in order to ensure that the joint of the upper prefabricated well wall 1 and the lower prefabricated well wall 1 is stable, cement slurry can be poured into the longitudinal preformed hole 2 to fix the joint in practice preferably; the longitudinal preformed holes 2 are uniformly arranged along the middle of the prefabricated well wall 1, staggered joint butt joint is adopted during actual longitudinal splicing, and the communication of the longitudinal preformed holes 2 of the upper prefabricated well wall 1 and the lower prefabricated well wall 1 is ensured. In order to facilitate the fixation of the prefabricated well wall 1 in the foundation pit, the soil nails 5 are preferably arranged at intervals in the circumferential direction, and the soil nails 5 are preferably formed byThe soil-entering end is conical and the soil nails 5 are distributed with +.>The quincuncial grouting holes enter a soil layer in a hammering or drilling mode, cement slurry is sequentially injected, and soil nails 5 are anchored in the soil layer; the annular ribs 6 are arranged on the soil nails 5, the prefabricated well wall 1 is actually hung on the annular ribs 6 to realize fixation, concrete is poured between the prefabricated well wall 1 and a foundation pit, the prefabricated well wall 1 is fixed in the foundation pit, and the poured cement paste can be preferably micro-expansion cement.
Preferably, in the above structure, the connecting members are adapted longitudinal grooves 11 and longitudinal grooves 12, and the longitudinal grooves 11 and the longitudinal grooves 12 are respectively disposed at two ends of the prefabricated well wall 1, and can connect the left prefabricated well wall 1 and the right prefabricated well wall 1. It can be understood by those skilled in the art that the connecting piece in the structure is preferably an adaptive longitudinal convex groove 11 and an adaptive longitudinal groove 12, and specifically, the two end surfaces of the prefabricated well wall 1 are respectively provided with the longitudinal convex groove 11 and the longitudinal groove 12, and the circumferential fixation of the prefabricated well wall 1 is realized by the longitudinal convex groove 11 being clamped into the longitudinal groove 12 of the adjacent prefabricated well wall 1, that is, the left and right adjacent prefabricated well walls 1 can be connected into a ring shape.
Preferably, in the above structure, the upper and lower end surfaces of the prefabricated well wall 1 are provided with an annular convex groove 9 and an annular groove 10, so that the prefabricated well wall 1 on the upper and lower sides can be connected through the annular convex groove 9 and the annular groove 10. It can be understood by those skilled in the art that the structure is further connected with the annular groove 10 through the annular convex groove 9 between the two adjacent longitudinal prefabricated well walls 1, so that the upper, lower, left and right sides of the two adjacent prefabricated well walls 1 are connected through concave-convex grooves, and the construction safety and the construction quality of the vertical shaft are improved.
Preferably, in the above structure, water stop adhesive tapes 8 are arranged on the inner side and the outer side of the connection part of the longitudinal convex groove 11 and the longitudinal groove 12 and the connection part of the annular convex groove 9 and the annular groove 10. As will be appreciated by those skilled in the art, in order to ensure the integrity of the whole shaft wall, grouting is actually performed at the connection of the longitudinal convex groove 11 and the longitudinal groove 12 and the connection of the annular convex groove 9 and the annular groove 10, so that a closed cavity is formed inside the grouting structure, the water-stopping adhesive tape 8 is preferably filled at the connection of the longitudinal convex groove 11 and the longitudinal groove 12 and the connection of the upper prefabricated shaft wall 1 and the lower prefabricated shaft wall, so that the waterproof performance and the integrity of the shaft are improved.
Preferably, the structure further comprises a vertical rib 7, wherein the vertical rib 7 is axially arranged along the annular rib 6 and is sequentially connected with the annular rib 6 to form a reinforcement cage. It can be appreciated by those skilled in the art that in order to reduce the dosage of the soil nails 5, the structure is preferably provided with vertical ribs 7, and the annular ribs 6 outside each layer of prefabricated well wall 1 are connected into a whole through the vertical ribs 7 to form a reinforcement cage, so that the stability of the structure is maintained after grouting outside the prefabricated well wall 1. In addition, the structure is actually only needed to anchor a circle of soil nails 5 at the uppermost layer for supporting the annular ribs 6 at the uppermost layer, and the annular ribs 6 at the lower layer are directly connected through the vertical ribs 7.
Preferably, in the above structure, the embedded ribs 3 are in a T-shaped structure, and the number of the embedded ribs 3 on each prefabricated well wall 1 is 4, and the embedded ribs are arranged in a rectangular shape. It can be understood by those skilled in the art that, in order to facilitate the prefabricated well wall 1 to be hung on the annular rib 6, the pre-buried rib 3 of the structure is preferably in a T-shaped structure, and the number of the pre-buried ribs 3 on each prefabricated well wall 1 is 4 and the pre-buried ribs are arranged in a rectangular shape, and the arrangement of the structure is that two annular ribs 6 which are horizontally arranged are arranged at intervals are arranged outside each layer of prefabricated well wall 1.
Preferably, in the above structure, the longitudinal connecting member 4 is spaced from the longitudinal preformed hole 2, and the gap is filled with cement paste. It will be appreciated by those skilled in the art that in order to ensure the connection strength of the prefabricated well walls 1 on the upper and lower layers, the structure preferably has the longitudinal connecting members 4 spaced from the longitudinal reserved holes 2, and cement paste is filled in the gaps to ensure the structural strength of the longitudinal connecting portions.
Preferably, the longitudinal connecting members 4 in the above structure are steel bars or pipes, and are formed by screw threads or welded connection. It will be appreciated by those skilled in the art that, since the longitudinal connecting members 4 are inserted into the longitudinal preformed holes 2 from top to bottom, the length thereof is long, and for convenience of installation and cost reduction, it is preferable that the longitudinal connecting members 4 are steel bars or pipes, and that a plurality of short longitudinal connecting members 4 are actually connected by screw threads or welding to form a prefabricated well wall 1 which is inserted into the lowermost end from the upper end.
Preferably, in the structure, the prefabricated well walls 1 adjacent to each other up and down are in staggered joint, and the longitudinal reserved holes 2 of the two prefabricated well walls 1 are communicated. It can be understood by those skilled in the art that, since the longitudinal preformed holes 2 are uniformly arranged along the middle of the prefabricated well wall 1, structural strength is ensured by adopting staggered joint butt joint during actual longitudinal splicing, stress concentration after grouting is avoided, and the longitudinal preformed holes 2 of the upper prefabricated well wall 1 and the lower prefabricated well wall 1 are required to be ensured to be communicated, the longitudinal connecting member 4 penetrates into the holes, cement slurry is poured into the longitudinal preformed holes 2, the reinforcing steel bars or the steel pipes of the longitudinal connecting member 4 are effectively fixed, the vertical movement of the reinforcing steel bars or the steel pipes is prevented, meanwhile, the binding force between the reinforcing steel bars or the steel pipes and the cement slurry is improved, the longitudinal connecting member 4 and the poured cement slurry column body are mutually connected with the prefabricated well wall 1, and the integral rigidity of the well wall is improved.
Preferably, in the above structure, the distance between the center of the outermost longitudinal preformed hole 2 of the prefabricated well wall 1 and the end face thereof is half of the center distance between two adjacent longitudinal preformed holes 2. It can be understood by those skilled in the art that, in order to ensure that the longitudinal preformed holes 2 of the prefabricated well walls 1 which are adjacent up and down are always opposite after the adjacent prefabricated well walls 1 are spliced, the distance between the center of the outermost longitudinal preformed hole 2 of the prefabricated well wall 1 and the end face of the outermost longitudinal preformed hole is half of the center distance between the two adjacent longitudinal preformed holes 2, that is, the longitudinal preformed holes 2 are always distributed at equal intervals after the longitudinal convex grooves 11 and the longitudinal grooves 12 are spliced.
Claims (10)
1. Circular wall of a well structure of prefabricated assembly, its characterized in that: the soil nail structure comprises a plurality of prefabricated well walls (1), soil nails (5) and annular ribs (6), wherein the prefabricated well walls (1) are of arc-shaped block structures, and connecting pieces are respectively arranged at two ends of the prefabricated well walls (1) so that the left prefabricated well walls and the right prefabricated well walls (1) are connected into a ring shape; the soil nails (5) are anchored in the soil layer at intervals in an annular mode, annular ribs (6) are arranged on the soil nails (5), embedded ribs (3) are arranged on the outer wall of the prefabricated well wall (1), and the embedded ribs (3) are hung on the annular ribs (6); the upper end face and the lower end face of the prefabricated well wall (1) are provided with penetrating longitudinal preformed holes (2) at intervals, and longitudinal connecting members (4) are arranged in the longitudinal preformed holes (2) in a penetrating mode, so that the prefabricated well walls (1) adjacent to each other vertically are connected into a whole.
2. The prefabricated circular borehole wall structure according to claim 1, wherein: the connecting piece is a longitudinal convex groove (11) and a longitudinal groove (12) which are matched, the longitudinal convex groove (11) and the longitudinal groove (12) are respectively arranged at two ends of the prefabricated well wall (1), and the left prefabricated well wall and the right prefabricated well wall (1) are connected.
3. The prefabricated circular borehole wall structure according to claim 2, wherein: the upper end face and the lower end face of the prefabricated well wall (1) are provided with an annular convex groove (9) and an annular groove (10) which are matched, so that the prefabricated well wall (1) at the upper side and the lower side can be connected through the annular convex groove (9) and the annular groove (10).
4. A prefabricated circular borehole wall structure according to claim 3, wherein: the water stop adhesive tape (8) is arranged at the inner side and the outer side of the joint of the longitudinal convex groove (11) and the longitudinal groove (12) and the joint of the annular convex groove (9) and the annular groove (10).
5. The prefabricated circular borehole wall structure according to claim 1, wherein: the steel bar framework is characterized by further comprising vertical ribs (7), wherein the vertical ribs (7) are axially arranged along the annular ribs (6) and are sequentially connected with the annular ribs (6) to form the steel bar framework.
6. The prefabricated circular borehole wall structure according to claim 5, wherein: the embedded ribs (3) are of T-shaped structures, the number of the embedded ribs (3) on each prefabricated well wall (1) is 4, and the embedded ribs are arranged in a rectangular mode.
7. The prefabricated circular borehole wall structure according to claim 1, wherein: the longitudinal connecting member (4) and the longitudinal reserved hole (2) are arranged at intervals, and cement paste is filled in the gap.
8. The prefabricated circular borehole wall structure according to claim 1, wherein: the longitudinal connecting component (4) is a steel bar or a steel pipe and is formed by adopting threaded or welded connection.
9. The prefabricated circular borehole wall structure according to claim 1, wherein: the upper prefabricated well walls (1) and the lower prefabricated well walls (1) are in staggered joint connection, and the longitudinal reserved holes (2) of the upper prefabricated well walls and the lower prefabricated well walls (1) are communicated.
10. The prefabricated circular borehole wall structure according to claim 9, wherein: the distance between the center of the outermost longitudinal preformed hole (2) of the prefabricated well wall (1) and the end face of the prefabricated well wall is half of the center distance between the two adjacent longitudinal preformed holes (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321369145.XU CN219654694U (en) | 2023-05-31 | 2023-05-31 | Prefabricated circular well wall structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321369145.XU CN219654694U (en) | 2023-05-31 | 2023-05-31 | Prefabricated circular well wall structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219654694U true CN219654694U (en) | 2023-09-08 |
Family
ID=87876505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321369145.XU Active CN219654694U (en) | 2023-05-31 | 2023-05-31 | Prefabricated circular well wall structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219654694U (en) |
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2023
- 2023-05-31 CN CN202321369145.XU patent/CN219654694U/en active Active
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