CN216339560U - Supporting system for bridge foundation pit - Google Patents
Supporting system for bridge foundation pit Download PDFInfo
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- CN216339560U CN216339560U CN202120433352.1U CN202120433352U CN216339560U CN 216339560 U CN216339560 U CN 216339560U CN 202120433352 U CN202120433352 U CN 202120433352U CN 216339560 U CN216339560 U CN 216339560U
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Abstract
The utility model discloses a supporting system for a bridge foundation pit, which comprises a plurality of supporting devices arranged in the bridge foundation pit; the supporting device comprises a main side edge supporting structure horizontally arranged in the bridge foundation pit and a plurality of auxiliary side edge supporting structures horizontally arranged on the outer side of the main side edge supporting structure; the main side edge supporting structure comprises a plurality of main supports arranged on the side wall of the bridge foundation pit, and a main supporting member is obliquely arranged between every two adjacent main supports; the main supporting members between the main supports and two adjacent main supports jointly form a closed rectangular supporting structure. According to the utility model, the main support and the auxiliary support are arranged as supports of the supporting structure, so that the deformation of the bridge foundation pit can be controlled during construction, and the displacement of the ground surface around the bridge foundation pit and the settlement or deformation of surrounding structures are prevented; the main adjusting component provides a reverse force for the bridge foundation pit so as to balance the soil pressure of the bridge foundation pit in the excavation process and reduce foundation pit displacement and surrounding structure settlement.
Description
Technical Field
The utility model belongs to the technical field of bridge construction, and particularly relates to a supporting system for a bridge foundation pit.
Background
In the bridge foundation pit construction, generally adopt opposite direction to prop, consider the construction needs, some foundation pits adopt the angle brace to strut, but the angle brace is mostly adopted shaped steel or steel pipe, and the tip is cut into 45 oblique angles, encloses the purlin with the support and directly welds. In the later stage foundation ditch excavation process, receive foundation ditch soil pressure effect, the braced system warp to the foundation ditch internal deformation, lead to the displacement of the peripheral earth's surface of foundation ditch, and peripheral structures subsides or warp, is unfavorable for later stage construction, increases the safety risk.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the defects in the prior art are overcome, and the utility model provides a supporting system for a bridge foundation pit, wherein the main support and the auxiliary support are used as supports of a supporting structure, so that the deformation of the bridge foundation pit can be controlled in construction, and the displacement of the ground surface around the bridge foundation pit and the settlement or deformation of surrounding structures are prevented; the main adjusting component provides a reverse force for the bridge foundation pit so as to balance the soil pressure of the bridge foundation pit in the excavation process and reduce foundation pit displacement and surrounding structure settlement.
In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides a bridge foundation ditch is with strutting system which characterized in that: the device comprises a plurality of supporting devices arranged in a bridge foundation pit, wherein the supporting devices are uniformly distributed along the depth direction of the bridge foundation pit;
the supporting device comprises a main side edge supporting structure horizontally arranged in the bridge foundation pit and a plurality of auxiliary side edge supporting structures horizontally arranged on the outer side of the main side edge supporting structure;
the main side edge supporting structure comprises a plurality of main supports arranged on the side wall of the bridge foundation pit, the main supports are uniformly distributed along the circumferential direction of the bridge foundation pit, the main supports are of isosceles right triangle structures, and the bottom edges of the main supports are fixed on the side wall of the bridge foundation pit; a main supporting member is obliquely arranged between every two adjacent main supports; a plurality of main supports and main support members between two adjacent main supports jointly enclose a closed rectangular support structure; one end of the main supporting member is fixedly connected with one main support through a sealing plate, and the other end of the main supporting member is movably connected with the other main support through a main adjusting assembly;
the auxiliary side supporting structure comprises two auxiliary supports which are arranged on the side wall of the bridge foundation pit and are arranged on the outer side of the rectangular supporting structure, the auxiliary supports are in isosceles right triangle structures, and the bottom edges of the auxiliary supports are fixed on the side wall of the bridge foundation pit; an auxiliary movable supporting joint is obliquely arranged between the two auxiliary supports, and the auxiliary movable supporting joint positioned on the same side is parallel to the main supporting member.
Foretell bridge foundation ditch is with strutting system, its characterized in that: the main supporting member comprises a fixed supporting joint fixed on one main supporting seat and a main movable supporting joint movably connected on the other main supporting seat, and the fixed supporting joint and the main movable supporting joint are connected through a middle standard joint.
Foretell bridge foundation ditch is with strutting system, its characterized in that: one end of the fixed supporting joint is connected with the main support through the end sealing plate, and the other end of the fixed supporting joint is connected with one end of the middle standard joint through a plurality of fixing pieces;
one end of the main movable supporting joint is connected with the other end of the middle standard joint through a plurality of fixing pieces, and the other end of the main movable supporting joint is connected with the main support through the main adjusting assembly.
Foretell bridge foundation ditch is with strutting system, its characterized in that: the main adjusting component comprises a main supporting plate connected between the main movable supporting node and the main support and first jacks arranged on two sides of the main supporting plate.
Foretell bridge foundation ditch is with strutting system, its characterized in that: one end of the auxiliary movable supporting section is fixedly connected with one auxiliary support through a sealing plate, and the other end of the auxiliary movable supporting section is connected with the other auxiliary support through the auxiliary adjusting assembly.
Foretell bridge foundation ditch is with strutting system, its characterized in that: the auxiliary adjusting assembly is the same as the main adjusting assembly in structure and comprises an auxiliary supporting plate connected between the auxiliary movable supporting section and the auxiliary support and second jacks arranged on two sides of the auxiliary supporting plate.
Compared with the prior art, the utility model has the following advantages:
1. the main support and the auxiliary support are arranged as supports of the supporting structure, so that the deformation of the bridge foundation pit can be controlled in construction, and the main support and the auxiliary support can be used as supports for mounting supporting joints, so that the displacement of the ground surface around the bridge foundation pit and the settlement or deformation of surrounding structures are prevented.
2. According to the utility model, the main supporting member and the main support are movably connected through the main adjusting assembly, so that a reverse force is provided for the bridge foundation pit, the balance of the soil pressure of the bridge foundation pit in the excavation process is achieved, and the foundation pit displacement and the settlement of surrounding structures are reduced.
In summary, the main support and the auxiliary support are arranged as supports of the supporting structure, so that the deformation of the bridge foundation pit can be controlled in the construction process, and the displacement of the ground surface around the bridge foundation pit and the settlement or deformation of surrounding structures are prevented; the main adjusting component provides a reverse force for the bridge foundation pit so as to balance the soil pressure of the bridge foundation pit in the excavation process and reduce foundation pit displacement and surrounding structure settlement.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
Fig. 1 is a schematic view of a connection relationship between a support device and a bridge foundation pit.
FIG. 2 is a schematic view of the connection between the main support base and the main support member according to the present invention.
FIG. 3 is a schematic view showing the connection relationship between the auxiliary support and the auxiliary movable support section according to the present invention.
Description of reference numerals:
1, a bridge foundation pit; 2-main support; 3, fixing a support section;
4-main movable supporting section; 5-intermediate standard section; 6-ribbed plate;
7, a fixing piece; 8-a first jack; 9-main supporting plate;
10-auxiliary movable supporting section; 11-auxiliary support; 12-a main support member;
13-end sealing plate; 14-a secondary support plate; 15-a second jack;
Detailed Description
As shown in fig. 1, 2 and 3, the utility model includes a plurality of supporting devices arranged in a bridge foundation pit 1, and the supporting devices are uniformly arranged along the depth direction of the bridge foundation pit 1;
the supporting device comprises a main side edge supporting structure horizontally arranged in the bridge foundation pit 1 and a plurality of auxiliary side edge supporting structures horizontally arranged on the outer side of the main side edge supporting structure;
the main side edge supporting structure comprises a plurality of main supports 2 arranged on the side wall of the bridge foundation pit 1, the main supports 2 are uniformly distributed along the circumferential direction of the bridge foundation pit 1, the main supports 2 are of isosceles right triangle structures, and the bottom edges of the main supports 2 are fixed on the side wall of the bridge foundation pit 1; a main supporting member 12 is obliquely arranged between every two adjacent main supports 2; a plurality of main supports 2 and main support members 12 between two adjacent main supports 2 jointly enclose a closed rectangular support structure; one end of the main supporting member 12 is fixedly connected with one main support 2 through a sealing plate 13, and the other end of the main supporting member 12 is movably connected with the other main support 2 through a main adjusting assembly;
the auxiliary side supporting structure comprises two auxiliary supports 11 which are arranged on the side wall of the bridge foundation pit 1 and are arranged on the outer side of the rectangular supporting structure, the auxiliary supports 11 are in isosceles right triangle structures, and the bottom edges of the auxiliary supports 11 are fixed on the side wall of the bridge foundation pit 1; an auxiliary movable supporting section 10 is obliquely arranged between the two auxiliary supporting seats 11, and the auxiliary movable supporting section 10 positioned on the same side is parallel to the main supporting member 12.
During actual use, the main support 2 and the auxiliary support 11 are arranged as supports of a supporting structure, deformation of the bridge foundation pit 1 can be controlled during construction, and meanwhile, the main support 2 and the auxiliary support 11 can be used as supports for mounting supporting joints, so that displacement of the ground surface around the bridge foundation pit 1 and settlement or deformation of surrounding structures are prevented.
The main supporting member 12 and the main support 2 are movably connected through the main adjusting assembly, a reverse force is provided for the bridge foundation pit 1, so that the balance of the soil pressure of the bridge foundation pit 1 in the excavation process is achieved, and foundation pit displacement and surrounding structure settlement are reduced.
It should be noted that the main support 2 and the auxiliary support 11 are both fixed on the side wall of the steel purlin of the bridge foundation pit 1. As shown in fig. 2, a rib 6 is mounted on the end plate 13 to enhance the stability of the connection.
In the embodiment, as shown in fig. 2, the main supporting member 12 includes a fixed supporting node 3 fixed on one main support 2 and a main movable supporting node 4 movably connected on the other main support 2, and the fixed supporting node 3 and the main movable supporting node 4 are connected by an intermediate standard node 5.
In this embodiment, one end of the fixed support joint 3 is connected to the main support 2 through the end-sealing plate 13, and the other end of the fixed support joint 3 is connected to one end of the middle standard joint 5 through a plurality of fixing members 7;
one end of the main movable supporting section 4 is connected with the other end of the middle standard section 5 through a plurality of fixing pieces 7, and the other end of the main movable supporting section 4 is connected with the main support 2 through the main adjusting assembly.
In practical use, the end blocking plate 13 is also provided with a plurality of fixing pieces 7, and the plurality of fixing pieces 7 are uniformly distributed along the circumferential direction of the end blocking plate 13; the plurality of fixing pieces 7 connected to the middle standard knot 5 are uniformly arranged along the circumferential direction of the middle standard knot 5. The fixing member 7 may be a bolt or a related part which may be replaced.
As shown in fig. 1 and 2, in this embodiment, the main adjusting assembly includes a main supporting plate 9 connected between the main movable supporting node 4 and the main supporting base 2, and first jacks 8 disposed at both sides of the main supporting plate 9.
During the in-service use, main activity support section 4 and main tributary seat 2 are connected through main tributary fagging 9, main tributary fagging 9 is T font structure, the horizontal segment butt of main tributary fagging 9 is in on the main support 2, the vertical section butt of main tributary fagging 9 is in on the terminal surface of main activity support section 4, utilize first jack 8 is right main activity support section 4 and main tributary seat 2 are adjusted, then utilize the steel wedge right the vertical section of main tributary fagging 9 is fixed, realizes main activity support section 4's is fixed. In order to enhance the stability of the main support plate 9, side plates are arranged on two sides of the main support plate 9, and the side plates and the main support plate 9 are integrally formed.
The main function of the first jack 8 is to pre-apply axial force to the main movable supporting joint 4, then use a steel wedge to temporarily lock the main movable supporting joint 4 and the main support 2, and then remove the first jack 8 to complete the installation of the main side supporting structure.
In the embodiment, as shown in fig. 3, one end of the auxiliary movable support section 10 is fixedly connected to one of the auxiliary supports 11 through a sealing plate 13, and the other end of the auxiliary movable support section 10 is connected to the other auxiliary support 11 through the auxiliary adjusting assembly.
In the present embodiment, as shown in fig. 3, the auxiliary adjusting assembly and the main adjusting assembly have the same structure, and the auxiliary adjusting assembly includes an auxiliary supporting plate 14 connected between the auxiliary movable supporting node 10 and the auxiliary support 11, and second jacks 15 disposed at both sides of the auxiliary supporting plate 14.
During the in-service use, the auxiliary movable support section 10 and the auxiliary support 11 are connected through the auxiliary support plate 14, the auxiliary support plate 14 is a T-shaped structure, the horizontal section butt of the auxiliary support plate 14 is in on the auxiliary support 11, the vertical section butt of the auxiliary support plate 14 is in on the terminal surface of the auxiliary movable support section 10, utilize the second jack 15 is right the auxiliary movable support section 10 and the auxiliary support 11 are adjusted, then utilize the steel wedge to be right the vertical section of the auxiliary support plate 14 is fixed, realize the fixing of the auxiliary movable support section 10. In order to enhance the stability of the auxiliary support plate 14, side plates are provided on both sides of the auxiliary support plate 14, and the side plates and the auxiliary support plate 14 are integrally formed.
The main function of the second jack 15 is to pre-apply axial force to the auxiliary movable supporting section 10, then use a steel wedge to temporarily lock the auxiliary movable supporting section 10 and the auxiliary support 11, and then remove the second jack 15 to complete the installation of the main side supporting structure.
When the bridge foundation pit supporting device is used, the main supports 2 are installed along the circumferential direction of the bridge foundation pit 1 according to the design size of the bridge foundation pit 1, the number of the main supports 2 is 4, and as shown in figure 1, each main support 2 is fixed at the center of each side of the bridge foundation pit 1; one end of a fixed supporting joint 3 is connected with the main support 2 by using the end sealing plate 13, and the middle standard joint 5 is fixed at the other end of the fixed supporting joint 3; then connecting the main movable supporting node 4 with the intermediate standard node 5, installing a main supporting plate 9 at one end of the main movable supporting node 4 far away from the intermediate standard node 5, installing first jacks 8 at two sides of the main supporting plate 9, pre-applying axial force to the main movable supporting node 4 by using the first jacks 8, then temporarily locking the main movable supporting node 4 and the main support 2 by using a steel wedge, and then removing the first jacks 8 to realize the connection and fixation between the main movable supporting node 4 and the main support 2 so as to complete the installation of the main side supporting structure; the secondary side supporting structure is installed in a similar manner to the primary side supporting structure.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (6)
1. The utility model provides a bridge foundation ditch is with strutting system which characterized in that: the device comprises a plurality of supporting devices arranged in a bridge foundation pit (1), wherein the supporting devices are uniformly distributed along the depth direction of the bridge foundation pit (1);
the supporting device comprises a main side edge supporting structure horizontally arranged in the bridge foundation pit (1) and a plurality of auxiliary side edge supporting structures horizontally arranged on the outer side of the main side edge supporting structure;
the main side edge supporting structure comprises a plurality of main supports (2) arranged on the side wall of the bridge foundation pit (1), the main supports (2) are uniformly distributed along the circumferential direction of the bridge foundation pit (1), the main supports (2) are of isosceles right triangle structures, and the bottom edges of the main supports (2) are fixed on the side wall of the bridge foundation pit (1); a main supporting member (12) is obliquely arranged between every two adjacent main supports (2); a plurality of main supports (2) and main supporting members (12) between two adjacent main supports (2) jointly enclose a closed rectangular supporting structure; one end of the main supporting member (12) is fixedly connected with one main support (2) through a sealing plate (13), and the other end of the main supporting member (12) is movably connected with the other main support (2) through a main adjusting assembly;
the auxiliary side supporting structure comprises two auxiliary supports (11) which are arranged on the side wall of the bridge foundation pit (1) and arranged on the outer side of the rectangular supporting structure, the auxiliary supports (11) are of isosceles right triangle structures, and the bottom edges of the auxiliary supports (11) are fixed on the side wall of the bridge foundation pit (1); an auxiliary movable supporting section (10) is obliquely arranged between the two auxiliary supports (11), and the auxiliary movable supporting section (10) positioned on the same side is parallel to the main supporting member (12).
2. The support system for the bridge foundation pit according to claim 1, wherein: the main supporting member (12) comprises a fixed supporting section (3) fixed on one main support (2) and a main movable supporting section (4) movably connected to the other main support (2), and the fixed supporting section (3) is connected with the main movable supporting section (4) through a middle standard section (5).
3. The support system for the bridge foundation pit according to claim 2, wherein: one end of the fixed supporting joint (3) is connected with the main support (2) through the end sealing plate (13), and the other end of the fixed supporting joint (3) is connected with one end of the middle standard joint (5) through a plurality of fixing pieces (7);
one end of the main movable supporting joint (4) is connected with the other end of the middle standard joint (5) through a plurality of fixing pieces (7), and the other end of the main movable supporting joint (4) is connected with the main support (2) through the main adjusting component.
4. The support system for the bridge foundation pit according to claim 3, wherein: the main adjusting component comprises a main supporting plate (9) connected between the main movable supporting node (4) and the main support (2) and first jacks (8) arranged on two sides of the main supporting plate (9).
5. The support system for the bridge foundation pit according to claim 1, wherein: one end of the auxiliary movable supporting joint (10) is fixedly connected with one auxiliary support (11) through a sealing plate (13), and the other end of the auxiliary movable supporting joint (10) is connected with the other auxiliary support (11) through an auxiliary adjusting component.
6. The support system for the bridge foundation pit according to claim 5, wherein: the auxiliary adjusting assembly and the main adjusting assembly are identical in structure, and the auxiliary adjusting assembly comprises an auxiliary supporting plate (14) connected between the auxiliary movable supporting joint (10) and the auxiliary support (11) and second jacks (15) arranged on two sides of the auxiliary supporting plate (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120433352.1U CN216339560U (en) | 2021-02-26 | 2021-02-26 | Supporting system for bridge foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120433352.1U CN216339560U (en) | 2021-02-26 | 2021-02-26 | Supporting system for bridge foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216339560U true CN216339560U (en) | 2022-04-19 |
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ID=81128320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120433352.1U Active CN216339560U (en) | 2021-02-26 | 2021-02-26 | Supporting system for bridge foundation pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216339560U (en) |
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2021
- 2021-02-26 CN CN202120433352.1U patent/CN216339560U/en active Active
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