CN210658374U - Foundation pit enclosure support system - Google Patents
Foundation pit enclosure support system Download PDFInfo
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- CN210658374U CN210658374U CN201920795786.9U CN201920795786U CN210658374U CN 210658374 U CN210658374 U CN 210658374U CN 201920795786 U CN201920795786 U CN 201920795786U CN 210658374 U CN210658374 U CN 210658374U
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Abstract
The utility model relates to a foundation pit support system, which comprises an assembled prefabricated reinforced concrete support structure, a lattice column end reinforced easy-to-dismount node, a support structure and a bent cap reinforced connection structure and a foundation pit water leakage rapid repair structure; the prefabricated reinforced concrete envelope of assembled mainly comprises prefabricated reinforced concrete lattice column of assembled and prefabricated reinforced concrete barricade, the side hookup location of prefabricated reinforced concrete lattice column of assembled and prefabricated reinforced concrete barricade adopts the cementing agent to paste the elastic rubber sealing pad, the top embedded bolt of prefabricated reinforced concrete lattice column of assembled and prefabricated reinforced concrete barricade. The utility model has the advantages that: the utility model discloses well assembled prefabricated reinforced concrete envelope who adopts only needs to assemble the structure at the scene, needs cast-in-place with traditional envelope to compare, has shortened the time limit for a project for the construction progress has good technical benefits and economic benefits.
Description
Technical Field
The utility model relates to a foundation ditch engineering field, in particular to foundation ditch enclosure support system.
Background
In recent years, with the rapid development of social economy in China, the scale of urban construction in China is larger and larger, urban population is more and more, and the problem of urban traffic congestion is solved, so that many new cities start to build subways, and the subway lines of developed two-wire cities are increased continuously. The support system is used as an auxiliary project for subway station construction, and has important significance for ensuring construction quality and safety.
The traditional subway station foundation pit support adopts fender piles and underground continuous walls as a fender structure, a cast-in-place mode is usually adopted, the construction speed is low, the construction period is long, particularly, the concrete pouring and vibrating difficulty is high, the problems of pouring quality and the like easily occur, such as the diameter shrinkage of the fender piles, the thickness of a wall body is not suitable, and the like. A large amount of manpower and material resources are required to be consumed to finish the construction. The utility model provides a new method of excavation supporting, assembled come the foundation ditch enclosure support system of being under construction.
In order to solve some defects of the traditional technology, a foundation pit enclosure support system capable of being constructed quickly and supported stably needs to be provided urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming not enough among the prior art, providing a foundation ditch enclosure support system.
The foundation pit bracing and supporting system comprises an assembled prefabricated reinforced concrete bracing structure, a lattice column end reinforced easy-to-dismount node, a bracing structure and capping beam reinforced connecting structure and a foundation pit water leakage rapid repairing structure; the assembly type prefabricated reinforced concrete enclosure structure mainly comprises an assembly type prefabricated reinforced concrete lattice column and an assembly type prefabricated reinforced concrete retaining wall, wherein the side connecting position of the assembly type prefabricated reinforced concrete lattice column and the assembly type prefabricated reinforced concrete retaining wall is formed by sticking an elastic rubber sealing gasket by adopting a cementing agent, and the top of the assembly type prefabricated reinforced concrete lattice column and the top of the assembly type prefabricated reinforced concrete retaining wall are embedded with bolts; the reinforced easy-to-dismount node of the latticed column end is of a cross structure, a vertical bolt hole is arranged in the middle of the reinforced easy-to-dismount node of the latticed column end, horizontal bolt holes are arranged around the reinforced easy-to-dismount node of the latticed column end, and the reinforced easy-to-dismount node of the latticed column end is connected with the top of the prefabricated reinforced concrete latticed column; the enclosure structure and the bent cap reinforced connecting structure are characterized in that the assembled prefabricated reinforced concrete retaining wall and the prefabricated prestressed reinforced concrete bent cap are connected together in a bolt connection mode, a vertical bolt hole is formed in the middle of the prefabricated prestressed reinforced concrete bent cap, and horizontal bolt holes are formed in two sides of the prefabricated prestressed reinforced concrete bent cap; the foundation pit water leakage rapid repairing structure comprises a water leakage opening groove and a rubber water-stopping sealing strip, wherein the water leakage position of the foundation pit support structure is provided with the water leakage opening groove, and the rubber water-stopping sealing strip is adhered by using a cementing agent.
Preferably, the method comprises the following steps: the reinforced easy-to-disassemble node of the lattice column end is made of steel.
Preferably, the method comprises the following steps: the tops of the prefabricated reinforced concrete lattice columns and the prefabricated reinforced concrete retaining wall are respectively connected with the prefabricated prestressed reinforced concrete capping beams and the reinforced easy-to-detach nodes at the ends of the lattice columns through bolts; the adjacent prefabricated reinforced concrete lattice columns are matched and spliced with the prefabricated reinforced concrete retaining wall; the adjacent precast prestressed reinforced concrete bent caps are connected with the grid column end reinforced easy-to-dismount nodes in a matched mode, and the precast prestressed reinforced concrete bent caps correspond to the horizontal bolt holes of the grid column end reinforced easy-to-dismount nodes.
Preferably, the method comprises the following steps: and hanging a reinforcing mesh and pouring concrete at the foundation pit water leakage quick repairing structure at the foundation pit water leakage position.
The utility model has the advantages that:
(1) the utility model discloses well assembled prefabricated reinforced concrete envelope who adopts only needs to assemble the structure at the scene, needs cast-in-place with traditional envelope to compare, has shortened the time limit for a project for the construction progress has good technical benefits and economic benefits.
(2) The utility model provides a lattice column end strenghthened type readily removable node can strengthen the envelope's of column segment position stability, convenient to detach moreover, repeatedly usable, and technical benefit is showing.
(3) The utility model provides an envelope and bent cap enhancement connection structure enable envelope upper portion to connect and become a whole, improve the stability on envelope upper portion greatly, and the technical benefit is showing.
Drawings
FIG. 1 is a schematic plan view of an assembled prefabricated reinforced concrete enclosure;
FIG. 2 is a schematic view of a reinforced frangible joint at the end of a lattice column;
FIG. 3 is a schematic view of a reinforced connection structure of the enclosure and the cover beam;
FIG. 4 is a schematic view of an assembled prefabricated reinforced concrete lattice column;
FIG. 5 is a schematic view of an assembled prefabricated reinforced concrete retaining wall;
FIG. 6 is a schematic view of a lattice column connected to a frangible joint;
FIG. 7 is a schematic view of a precast prestressed reinforced concrete bent cap;
FIG. 8 is a schematic view of the groove at the water leakage position of the building envelope;
fig. 9 is a schematic view of water leakage repair of the building envelope.
Description of reference numerals: 1, a foundation pit enclosure structure; 2, assembling prefabricated reinforced concrete lattice columns; 3, assembling the prefabricated reinforced concrete retaining wall; 4, prefabricating a prestressed reinforced concrete bent cap; 5, a reinforced easy-to-detach node at the lattice column end; 6-horizontal bolt hole; 7-vertical bolt hole; 8-elastic rubber sealing gasket; 9-bolt; 10-a nut; 11-grooving at the water leakage position; 12-rubber sealing strip.
Detailed Description
The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
The foundation pit bracing and supporting system comprises an assembled prefabricated reinforced concrete bracing structure, a lattice column end reinforced easy-to-dismount node 5, a bracing structure and capping beam reinforced connecting structure and a foundation pit water leakage rapid repairing structure; the assembly type prefabricated reinforced concrete enclosure structure mainly comprises an assembly type prefabricated reinforced concrete lattice column 2 and an assembly type prefabricated reinforced concrete retaining wall 3, wherein the side connecting positions of the assembly type prefabricated reinforced concrete lattice column 2 and the assembly type prefabricated reinforced concrete retaining wall 3 are adhered with an elastic rubber sealing gasket 8 by adopting a cementing agent, and the top embedded bolts 9 of the assembly type prefabricated reinforced concrete lattice column 2 and the assembly type prefabricated reinforced concrete retaining wall 3 are embedded; the reinforced easy-to-dismount node 5 at the lattice column end is of a cross structure, a vertical bolt hole 7 is arranged in the middle of the reinforced easy-to-dismount node 5 at the lattice column end, horizontal bolt holes 6 are arranged around the reinforced easy-to-dismount node 5 at the lattice column end, and the reinforced easy-to-dismount node 5 at the lattice column end is connected with the top of the prefabricated reinforced concrete lattice column 2; the enclosing structure and the bent cap reinforced connecting structure are characterized in that the prefabricated reinforced concrete retaining wall 3 and the prefabricated prestressed reinforced concrete bent cap 4 are connected together in a bolt connection mode, a vertical bolt hole 7 is formed in the middle of the prefabricated prestressed reinforced concrete bent cap 4, and horizontal bolt holes 6 are formed in two sides of the prefabricated prestressed reinforced concrete bent cap 4; the foundation pit water leakage rapid repairing structure comprises a water leakage opening groove 11 and a rubber water-stopping sealing strip 12, wherein the water leakage position of the foundation pit support structure 1 is provided with a water leakage opening groove 1111, and the rubber water-stopping sealing strip 12 is adhered by using a cementing agent.
The reinforced easy-to-detach node 5 of the lattice column end is made of steel.
The tops of the prefabricated reinforced concrete lattice columns 2 and the prefabricated reinforced concrete retaining walls 3 are respectively connected with prefabricated prestressed reinforced concrete capping beams 4 and reinforced easy-to-detach nodes 5 at lattice column ends through bolts 9; the adjacent prefabricated reinforced concrete lattice columns 2 are matched and spliced with the prefabricated reinforced concrete retaining wall 3; adjacent prefabricated prestressed reinforced concrete bent cap 4 and lattice column end strenghthened type readily removable node 5 cooperation are connected, and the level of prefabricated prestressed reinforced concrete bent cap 4 and lattice column end strenghthened type readily removable node 5 is to bolt hole 6 corresponding and through the level to bolted connection.
After the foundation pit water leakage rapid repair is completed, the reinforcing mesh can be hung at the position of the foundation pit water leakage and concrete can be poured according to needs, so that water leakage is further prevented.
The construction method of the foundation pit enclosure support system comprises the following steps:
(1) and manufacturing the prefabricated reinforced concrete lattice column 2 and the prefabricated reinforced concrete retaining wall 3. The fabrication of the prefabricated reinforced concrete lattice column 2 and the prefabricated reinforced concrete retaining wall 3 is completed in a factory, and bolts 9 are embedded at the top of the prefabricated reinforced concrete lattice column 2 and the prefabricated reinforced concrete retaining wall 3 when the prefabricated reinforced concrete lattice column and the prefabricated reinforced concrete retaining wall are fabricated. And an elastic rubber sealing gasket 8 is stuck to the side connecting position of the prefabricated reinforced concrete lattice column 2 and the prefabricated reinforced concrete retaining wall 3 by adopting a cementing agent, as shown in fig. 4 and 5.
(2) And manufacturing the reinforced easy-to-detach node 5 of the lattice column end. As shown in figure 2, the reinforced easy-to-detach node 5 at the end of the latticed column is made of steel, a vertical bolt hole 7 is arranged in the middle of the node, and four horizontal bolt holes 6 are arranged on the periphery of the node.
(3) And manufacturing the precast prestressed reinforced concrete bent cap 4. As shown in fig. 7, the manufacturing of the precast prestressed reinforced concrete bent cap 4 is completed in a factory, and when the precast prestressed reinforced concrete bent cap 4 is manufactured, vertical bolt holes 7 are reserved on the beam at equal intervals, and horizontal bolt holes 6 are reserved at two ends of the beam respectively.
(4) And assembling the foundation pit support structure. As shown in fig. 1, a grooving machine is adopted to perform grooving according to the design requirement, and a hoisting device is adopted to assemble the prefabricated reinforced concrete lattice column 2 and the prefabricated reinforced concrete retaining wall 3. The prefabricated reinforced concrete lattice column 2 and the reinforced easy-to-detach node 5 at the end of the lattice column are connected together in a bolt connection mode, as shown in fig. 6. The assembled prefabricated reinforced concrete retaining wall 3 and the prefabricated prestressed reinforced concrete capping beam 4 are connected together in a bolt connection manner, as shown in fig. 3. And finally, connecting the prefabricated prestressed reinforced concrete bent cap 4 with the reinforced easy-to-dismount node 5 at the end of the lattice column by adopting a bolt connection mode through a horizontal bolt hole 6.
(5) And taking a rapid repair measure for foundation pit water leakage. If the foundation pit support structure 1 leaks water, a groove 11 is formed at the water leaking position, the groove is cleaned, and then a rubber water-stopping sealing strip 12 is adhered by using a cementing agent.
Claims (4)
1. The foundation pit bracing system is characterized in that: the prefabricated reinforced concrete building enclosure structure comprises an assembled prefabricated reinforced concrete building enclosure structure, a lattice column end reinforced easy-to-dismount node (5), a building enclosure structure and bent cap reinforced connection structure and a foundation pit water leakage rapid repairing structure; the assembly type prefabricated reinforced concrete enclosure structure mainly comprises an assembly type prefabricated reinforced concrete lattice column (2) and an assembly type prefabricated reinforced concrete retaining wall (3), wherein the side connecting positions of the assembly type prefabricated reinforced concrete lattice column (2) and the assembly type prefabricated reinforced concrete retaining wall (3) are pasted with elastic rubber sealing gaskets (8) by adopting cementing agents, and bolts (9) are embedded at the tops of the assembly type prefabricated reinforced concrete lattice column (2) and the assembly type prefabricated reinforced concrete retaining wall (3); the reinforced easy-to-dismount node (5) at the latticed column end is of a cross structure, a vertical bolt hole (7) is arranged in the middle of the reinforced easy-to-dismount node (5) at the latticed column end, horizontal bolt holes (6) are arranged around the reinforced easy-to-dismount node (5) at the latticed column end, and the reinforced easy-to-dismount node (5) at the latticed column end is connected with the top of the prefabricated reinforced concrete latticed column (2); the enclosing structure and the bent cap reinforced connecting structure are characterized in that the prefabricated reinforced concrete retaining wall (3) and the prefabricated prestressed reinforced concrete bent cap (4) are connected together in a bolt connection mode, a vertical bolt hole (7) is formed in the middle of the prefabricated prestressed reinforced concrete bent cap (4), and horizontal bolt holes (6) are formed in two sides of the prefabricated prestressed reinforced concrete bent cap (4); the foundation pit water leakage rapid repairing structure comprises a water leakage opening groove (11) and a rubber water sealing strip (12), wherein the water leakage opening groove (11) is formed in the water leakage position of the foundation pit enclosure structure (1), and the rubber water sealing strip (12) is adhered by using a cementing agent.
2. The foundation pit support system according to claim 1, wherein: the lattice column end reinforced easy-to-detach node (5) is made of steel.
3. The foundation pit support system according to claim 1, wherein: the tops of the prefabricated reinforced concrete lattice columns (2) and the prefabricated reinforced concrete retaining walls (3) are respectively connected with prefabricated prestressed reinforced concrete capping beams (4) and reinforced easy-to-dismount nodes (5) at lattice column ends through bolts (9); the adjacent prefabricated reinforced concrete lattice columns (2) are matched and spliced with the prefabricated reinforced concrete retaining wall (3); the adjacent precast prestressed reinforced concrete bent caps (4) are connected with the grid column end reinforced easy-to-dismount nodes (5) in a matched mode, and the precast prestressed reinforced concrete bent caps (4) correspond to the horizontal bolt holes (6) of the grid column end reinforced easy-to-dismount nodes (5).
4. The foundation pit support system according to claim 1, wherein: and hanging a reinforcing mesh and pouring concrete at the foundation pit water leakage quick repairing structure at the foundation pit water leakage position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920795786.9U CN210658374U (en) | 2019-05-28 | 2019-05-28 | Foundation pit enclosure support system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920795786.9U CN210658374U (en) | 2019-05-28 | 2019-05-28 | Foundation pit enclosure support system |
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| CN210658374U true CN210658374U (en) | 2020-06-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288189A (en) * | 2022-01-11 | 2022-11-04 | 浙江理工大学 | Construction method of pit-well type stereo garage |
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- 2019-05-28 CN CN201920795786.9U patent/CN210658374U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288189A (en) * | 2022-01-11 | 2022-11-04 | 浙江理工大学 | Construction method of pit-well type stereo garage |
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