CN216948301U - Supporting structure of foundation pit - Google Patents
Supporting structure of foundation pit Download PDFInfo
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- CN216948301U CN216948301U CN202121478718.3U CN202121478718U CN216948301U CN 216948301 U CN216948301 U CN 216948301U CN 202121478718 U CN202121478718 U CN 202121478718U CN 216948301 U CN216948301 U CN 216948301U
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- piles
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Abstract
The utility model relates to a supporting structure of a foundation pit, comprising: the supporting pieces surround a foundation pit to be excavated and are arranged on the ground layer at intervals, each supporting piece comprises two tubular piles, the top ends of the two tubular piles are overlapped, the bottom ends of the two tubular piles are far away from each other, a set included angle is formed between the two tubular piles, the top ends of the tubular piles are lower than the ground, and the bottom ends of the tubular piles are located below the bottom surface of the foundation pit to be excavated; and pouring the crown beam formed at the top of the plurality of supporting pieces to connect the plurality of supporting pieces, wherein the top surface of the crown beam is flush with the ground. The utility model effectively solves the problem that the traditional supporting structure construction has great influence on the surrounding environment, shortens the construction period, has small limitation on the structure space, avoids the pollution of cement dust or mud on the surrounding environment, can meet the requirement of green construction, and ensures the construction safety and the construction quality.
Description
Technical Field
The utility model relates to the field of building construction, in particular to a supporting structure of a foundation pit.
Background
Under the background that land resources are increasingly scarce and the construction rhythm is increasingly accelerated, green construction and rapid construction become industrial trends, and the traditional foundation pit support form in a soft soil area, namely the row-type support of piles arranged at intervals, has no longer high popularization and application value due to the reasons of long construction period, large structural space limitation, easy environmental pollution caused by cement dust or slurry and the like, and cannot meet the requirements of green construction.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art, provides the supporting structure of the foundation pit, solves the problem that the traditional supporting structure construction has large influence on the surrounding environment, shortens the construction period, has small limitation on the structure space, avoids the cement dust or mud from polluting the surrounding environment, can meet the requirement of green construction, and ensures the construction safety and the construction quality.
The technical scheme for realizing the purpose is as follows:
the utility model provides a supporting structure of a foundation pit, which comprises:
the supporting pieces surround a foundation pit to be excavated and are arranged on the ground layer at intervals, each supporting piece comprises two tubular piles, the top ends of the two tubular piles are overlapped, the bottom ends of the two tubular piles are far away from each other, a set included angle is formed between the two tubular piles, the top ends of the tubular piles are lower than the ground, and the bottom ends of the tubular piles are located below the bottom surface of the foundation pit to be excavated; and
and pouring the crown beam formed at the top of the plurality of supporting pieces to connect the plurality of supporting pieces, wherein the top surface of the crown beam is flush with the ground.
The utility model provides a supporting structure of a foundation pit, which is characterized in that a plurality of supporting pieces are arranged at intervals along the foundation pit to be excavated, each supporting piece comprises two tubular piles with overlapped top ends and mutually far bottom ends, and a crown beam is further poured at the top of each tubular pile.
The supporting structure of the foundation pit is further improved in that the supporting structure further comprises a filling layer which is formed between the two tubular piles of the supporting piece in an injection mode and is close to the top ends of the two tubular piles so as to fill a gap between the two tubular piles.
The supporting structure of the foundation pit is further improved in that the supporting structure further comprises a plurality of stand columns which are vertically arranged on the ground layer and are arranged corresponding to the corners of the foundation pit to be excavated, and the stand columns are fixedly connected with the surrounding supporting pieces through crown beams.
The supporting structure of the foundation pit is further improved in that the supporting structure further comprises an inclined strut which is connected among the plurality of stand columns and arranged corresponding to the corner of the foundation pit to be excavated.
The supporting structure of the foundation pit is further improved in that two tubular piles of the supporting piece are symmetrically arranged along the vertical direction, and the two tubular piles are inclined.
The supporting structure of the foundation pit is further improved in that the included angle between each pipe pile and the vertical direction is 10 degrees.
The supporting structure of the foundation pit is further improved in that one tubular pile of the supporting piece is vertically arranged, and the other tubular pile is inclined towards the direction close to the foundation pit to be excavated.
The supporting structure of the foundation pit is further improved in that the set included angle is 20 degrees.
Drawings
Fig. 1 is a top view of a support structure for a foundation pit of the present invention.
Fig. 2 is a side cross-sectional view of one embodiment of a support member in a supporting structure of a foundation pit of the present invention.
Fig. 3 is a side cross-sectional view of another embodiment of a support member in a retaining structure of an excavation pit of the present invention.
Fig. 4 is a side sectional view of a column in the supporting structure of the foundation pit of the present invention.
Detailed Description
The utility model is further described with reference to the following figures and specific examples.
Referring to fig. 1, the utility model provides a supporting structure of a foundation pit, a plurality of supporting pieces are arranged at intervals along the foundation pit to be excavated, each supporting piece comprises two tubular piles with the top ends overlapped and the bottom ends away from each other, and a crown beam is further poured at the top of each tubular pile. The supporting structure of the foundation pit of the present invention will be described with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a plan view of a supporting structure of a foundation pit according to the present invention. The supporting structure of the foundation pit of the present invention will be described with reference to fig. 1.
As shown in fig. 1, the supporting structure of a foundation pit of the present invention includes:
the supporting pieces 11 are arranged around a foundation pit to be excavated at intervals, each supporting piece 11 comprises two tubular piles 111, the top ends of the two tubular piles are overlapped, the bottom ends of the two tubular piles are far away from each other, a set included angle is formed between the two tubular piles 111, the top ends of the tubular piles 111 are lower than the ground, and the bottom ends of the tubular piles are located below the bottom surface of the foundation pit to be excavated; and
and pouring a crown beam 12 formed at the top of the plurality of supporting pieces 11 to connect the plurality of supporting pieces 11, wherein the top surface of the crown beam 12 is flush with the ground.
Specifically, the set angle is 20 °.
Preferably, the tube pile 111 may be a hybrid reinforced prestressed tube pile, and the tube pile 111 is a prestressed concrete tube pile with a certain amount of non-prestressed reinforcement.
As a preferred embodiment of the present invention, the method further comprises spraying a filling layer 112 formed between the two pipe stakes 111 of the support member 11 and near the top ends of the two pipe stakes 111 to fill the gap between the two pipe stakes 111, so as to maintain the angle between the two pipe stakes 111 and improve the strength of the support member 11.
Preferably, concrete can be sprayed between two adjacent supporting members 11 to maintain soil between the two supporting members 11, so as to support the foundation pit.
Further, as shown in fig. 4, the excavation device further includes a plurality of vertical columns 13 vertically arranged in the ground and corresponding to corners of the foundation pit to be excavated, and the vertical columns 13 are fixedly connected with the surrounding supporting members 11 through crown beams 12.
Specifically, the excavation device further comprises an inclined strut 14 which is connected among the plurality of upright posts 13 and is arranged corresponding to a corner of a foundation pit to be excavated.
Further, as shown in fig. 2, the two pipe piles 111 of the support member 11 are symmetrically arranged along the vertical direction, and both the two pipe piles 111 are inclined.
Preferably, the included angle between each tubular pile 111 and the vertical direction is 10 °.
Further, as shown in fig. 3, one pipe pile 111 of the support member 11 is vertically disposed, and the other pipe pile 111 is inclined toward the direction close to the foundation pit to be excavated.
The specific implementation method of the utility model is as follows:
before construction, simulation accounting is carried out by software according to site conditions and underground structure conditions, numerical values of foundation pit deformation and peripheral settlement caused by foundation pit excavation are deduced, and the pile diameter, the pile length and the arrangement spacing form of the tubular piles 111 are set according to simulation deduction results;
a supporting piece 11 is arranged around a foundation pit to be excavated, a mode that one tubular pile 111 is vertical and the other tubular pile 111 is inclined can be adopted in a straight section, as shown in fig. 3, and a mode that two tubular piles 111 are inclined can be adopted in a limited section, as shown in fig. 2;
arranging upright columns 13 at positions corresponding to corners of the foundation pit, and arranging inclined struts 14 between the upright columns 13 to improve the support strength;
pouring a crown beam 12 on the tops of the plurality of supporting pieces 11 and the upright columns 13 to fixedly connect the plurality of supporting pieces 11 and the upright columns 13;
after the inclined struts 14 and the crown beams 12 reach the set strength, a foundation pit is excavated, soil between the tubular piles 111 is kept in the excavation process, concrete can be sprayed to form a filling layer 112 by hanging a net between the two corresponding tubular piles 111, and concrete can also be sprayed to form a net between two adjacent supporting pieces 11 by hanging a net, so that the soil between the supporting pieces 11 is prevented from collapsing.
While the present invention has been described in detail and with reference to the embodiments thereof as shown in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments should not be construed as limitations of the utility model, except insofar as the following claims are interpreted to cover the utility model.
Claims (8)
1. A supporting construction of a foundation pit, comprising:
the supporting pieces surround a foundation pit to be excavated and are arranged on the ground at intervals, each supporting piece comprises two tubular piles, the top ends of the two tubular piles are overlapped, the bottom ends of the two tubular piles are far away from each other, a set included angle is formed between the two tubular piles, the top ends of the tubular piles are lower than the ground, and the bottom ends of the tubular piles are located below the bottom surface of the foundation pit to be excavated; and
and pouring a crown beam formed at the top of the plurality of supporting pieces to connect the plurality of supporting pieces, wherein the top surface of the crown beam is flush with the ground.
2. The supporting structure of a foundation pit according to claim 1, further comprising a filling layer sprayed between two pipe piles of the support member and near the top ends of the two pipe piles to fill a gap between the two pipe piles.
3. The supporting structure of a foundation pit as claimed in claim 1, further comprising a plurality of columns vertically erected in the ground and disposed corresponding to corners of the foundation pit to be excavated, the columns being fixedly connected to the surrounding supports by means of crown beams.
4. A supporting structure for a foundation pit as claimed in claim 3, further comprising a diagonal brace connected between the plurality of columns and provided corresponding to a corner of the foundation pit to be excavated.
5. The supporting structure of a foundation pit according to claim 1, wherein the two pipe piles of the supporting member are symmetrically arranged in the vertical direction, and both of the two pipe piles are inclined.
6. A supporting construction for a foundation pit as claimed in claim 5, wherein each of the tubular piles is inclined at an angle of 10 ° to the vertical.
7. A supporting structure for a foundation pit as claimed in claim 1, wherein one of the tubular piles of the supporting member is arranged vertically and the other tubular pile is inclined in a direction close to the foundation pit to be excavated.
8. A supporting structure for a foundation pit according to claim 1, wherein the set angle is 20 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121478718.3U CN216948301U (en) | 2021-07-01 | 2021-07-01 | Supporting structure of foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121478718.3U CN216948301U (en) | 2021-07-01 | 2021-07-01 | Supporting structure of foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216948301U true CN216948301U (en) | 2022-07-12 |
Family
ID=82290089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121478718.3U Active CN216948301U (en) | 2021-07-01 | 2021-07-01 | Supporting structure of foundation pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216948301U (en) |
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2021
- 2021-07-01 CN CN202121478718.3U patent/CN216948301U/en active Active
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