Foundation reinforcing device for box culvert jacking construction

Abstract

The utility model belongs to the technical field of box culvert jacking construction foundation reinforcement, and particularly relates to a box culvert jacking construction foundation reinforcement device which comprises an original road foundation, a plurality of foundation pits are distributed on the original road foundation in a dot matrix mode, and a concrete supporting column used for supporting is longitudinally embedded in each foundation pit. A supporting space used for supporting is formed among the tops of the multiple concrete supporting columns, a box culvert body is arranged on the supporting space, supporting pieces used for supporting the box culvert body are further arranged on the tops of the multiple concrete supporting columns, and the supporting pieces are of a net structure. According to the box culvert, the plurality of concrete supporting columns are additionally arranged, dot matrix supporting is carried out on the box culvert body on the original road foundation, and the supporting stability of equipment on the box culvert body is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of foundation reinforcement for box culvert jacking construction, and particularly relates to a foundation reinforcement device for box culvert jacking construction. Background Technique

[0002] A box culvert is a construction method for underground pipelines such as rivers, channels, roads, etc. The box culvert jacking construction technology refers to a construction method in which cover plate box culvert plates are gradually joined on existing road surfaces, river beds and other sites to achieve the purpose of forming a bridge.

[0003] In the Chinese utility model patent with the patent number CN202122218891.6 and the name of a foundation reinforcement device for box culvert jacking construction, by pre-reinforcing the foundation of the jacking route before jacking construction, the problem of insufficient bearing capacity of the box culvert jacking foundation caused by various geological structure conditions can be effectively solved, the accuracy requirements during the box culvert jacking process are ensured, and the box culvert is prevented from "diving" and sinking. However, the existing foundation reinforcement bars are only arranged in the longitudinal direction of the route to provide longitudinal support for the box culvert, and there is no device for supporting the box culvert in the transverse direction, resulting in an inability to form a stable support structure between multiple foundation reinforcement bars, causing some foundation reinforcement bars to be overloaded and some foundation reinforcement bars to be underloaded, affecting the stability of the box culvert support. Content of the Utility Model

[0004] The purpose of the utility model is to provide an original road foundation reinforcement device for box culvert jacking construction to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A foundation reinforcement device for box culvert jacking construction, comprising: an original road foundation, a plurality of foundation pits are distributed in a dot matrix on the original road foundation, and a concrete support column for support is longitudinally embedded in each foundation pit. A support space for support is formed between the tops of the plurality of concrete support columns, and a box culvert body is arranged on the support space.

[0006] Preferably, a support member for supporting the box culvert body is further arranged on the tops of the plurality of concrete support columns, and the support member is of a mesh structure.

[0007] Preferably, the support member comprises a plurality of concrete longitudinal beams and a plurality of concrete cross beams distributed in a cross shape with the plurality of concrete longitudinal beams. The plurality of concrete longitudinal beams are arranged in the longitudinal direction of the box culvert body, and the plurality of concrete cross beams are arranged in the transverse direction of the box culvert body.

[0008] Preferably, a groove is formed between each concrete longitudinal beam and the concrete cross beam, and a protruding block inserted into the corresponding groove is arranged on the top of each concrete support column.

[0009] Preferably, a first framework for structural support is provided in the concrete longitudinal beam. The first framework includes four first steel bars and a plurality of first steel bar sleeves. The plurality of first steel bar sleeves are equidistantly distributed along the axial direction of the first steel bar. All the plurality of first steel bars are bundled by binding bars on the inner sides of the four hanging corners of each first steel bar sleeve.

[0010] Preferably, a second framework for structural support is provided in the concrete cross beam. The second framework includes four second steel bars and a plurality of second steel bar sleeves. The plurality of second steel bar sleeves are equidistantly distributed along the axial direction of the second steel bar. All the plurality of second steel bars are bundled by binding bars on the inner sides of the four hanging corners of each second steel bar sleeve.

[0011] Compared with the prior art, the present utility model has the following beneficial effects:

[0012] (1) By adding a plurality of concrete support columns, the present utility model performs lattice support on the box culvert body on the original road foundation, improving the stability of the equipment for supporting the box culvert body.

[0013] (2) By adding support members, the support members in a net structure can apply the supporting force to various positions at the bottom of the box culvert body, thereby preventing the box culvert body from tilting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a top view of the support member and the concrete support column of the present utility model;

[0016] Figure 3 is a partial top view of the first framework and the second framework of the present utility model;

[0017] Figure 4 is a cross-sectional view of the concrete longitudinal beam of the present utility model;

[0018] In the figure: 1, box culvert body; 2, concrete longitudinal beam; 3, concrete cross beam; 4, original road foundation; 5, concrete support column; 6, foundation pit; 7, protruding block; 8, groove; 9, first steel bar; 10, first steel bar sleeve; 11, second steel bar; 12, second steel bar sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Reference Figure 1-2 As shown, a foundation reinforcement device for box culvert jacking construction provided by the present utility model includes: the original road foundation 4, a plurality of foundation pits 6 are distributed in a dot matrix on the original road foundation 4, and a concrete support column 5 for support is longitudinally embedded in each foundation pit 6. A support space for support is formed between the tops of the plurality of concrete support columns 5, and a box culvert body 1 is provided on the support space.

[0021] As described above, when using the original road foundation 4, foundation pits 6, a plurality of concrete support columns 5 and the box culvert body 1 provided by the present utility model, a support space for supporting the box culvert body 1 is formed at the original road foundation 4 through the plurality of concrete support columns 5, which is convenient for supporting the box culvert body 1.

[0022] In the present utility model, in combination with Figure 1-2 As shown, a support member for supporting the box culvert body 1 is further provided at the top of the plurality of concrete support columns 5 in this embodiment, and the support member is a mesh structure.

[0023] In combination with Figure 1-2 As shown, the support member includes a plurality of concrete longitudinal beams 2 and a plurality of concrete cross beams 3 distributed in a cross shape with the plurality of concrete longitudinal beams 2. The plurality of concrete longitudinal beams 2 are arranged in the longitudinal direction of the box culvert body 1, and the plurality of concrete cross beams 3 are arranged in the transverse direction of the box culvert body 1.

[0024] In combination with Figure 3-4 As shown, a first skeleton for structural support is provided in the concrete longitudinal beam 2. The first skeleton includes four first steel bars 9 and a plurality of first steel sleeves 10. The plurality of first steel sleeves 10 are equidistantly distributed along the axial direction of the first steel bar 9, and the plurality of first steel bars 9 are all bundled by binding bars on the inner sides of the four hanging corners of each first steel sleeve 10.

[0025] In combination with Figure 3-4 As shown, a second skeleton for structural support is provided in the concrete cross beam 3. The second skeleton includes four second steel bars 11 and a plurality of second steel sleeves 12. The plurality of second steel sleeves 12 are equidistantly distributed along the axial direction of the second steel bar 11, and the plurality of second steel bars 11 are all bundled by binding bars on the inner sides of the four hanging corners of each second steel sleeve 12.

[0026] As described above, when using the support member provided by the present utility model, the support member is assembled by a plurality of concrete longitudinal beams 2 and a plurality of concrete cross beams 3, so as to form a reticular structure for supporting the culvert body 1 on the top of a plurality of concrete support columns 5. The support strength of the concrete longitudinal beam 2 is improved by four first steel bars 9 and a plurality of first steel bar sleeves 10, and the support strength of the concrete longitudinal beam 2 is improved by four second steel bars 11 and a plurality of second steel bar sleeves 12.

[0027] Further, in order to prevent the support member from displacing on the plurality of concrete support columns 5, referring to Figure 1-2 as shown, a groove 8 is formed between each concrete longitudinal beam 2 and the concrete cross beam 3, and a protruding block 7 inserted into the corresponding groove 8 is provided at the top of each concrete support column 5. After the support member is assembled on the plurality of concrete support columns 5, the protruding block 7 on the concrete support column 5 is inserted into the groove 8 between the adjacent concrete longitudinal beam 2 and the adjacent concrete cross beam 3, which can prevent the support member from displacing on the plurality of concrete support columns 5.

[0028] Construction steps:

[0029] First, a row of concrete support columns 5 is preset outside the original road foundation 4, and a column of integral concrete longitudinal beams 2 is erected between the tops of the plurality of concrete support columns 5. A concrete cross beam 3 for connecting the next concrete longitudinal beam 2 is preset on one side of the concrete longitudinal beam 2. At this time, one end of the culvert body 1 is placed on the prefabricated concrete longitudinal beam 2, and then the culvert body 1 is jacked inward. When the culvert body 1 is jacked for a certain distance, the jacking is stopped. Then, the production of the next row of a plurality of concrete support columns 5 is carried out again, and the production of the concrete longitudinal beam 2 is carried out on the new concrete support columns 5. The adjacent concrete longitudinal beams 2 are connected by the concrete cross beam 3. After the above components are solidified, the culvert body 1 is jacked again. When the end of the culvert body 1 falls onto the newly produced concrete longitudinal beam 2, the jacking is stopped. Repeating the above steps can complete the construction of the culvert body 1.

[0030] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A foundation reinforcement device for box culvert jacking construction, characterized in that: include: An original road foundation (4), wherein a plurality of foundation pits (6) are distributed in a dot matrix on the original road foundation (4), a concrete support column (5) for support is longitudinally pre-buried in each of the foundation pits (6), a support space for support is formed between the tops of the plurality of concrete support columns (5), and a box culvert body (1) is provided on the support space.

2. A foundation reinforcement device for box culvert jacking construction according to claim 1, characterized in that: A support member for supporting the box culvert body (1) is also provided on the top of the plurality of concrete support columns (5), and the support member is a mesh structure.

3. A foundation reinforcement device for box culvert jacking construction according to claim 2, characterized in that: The support member comprises a plurality of concrete longitudinal beams (2) and a plurality of concrete transverse beams (3) distributed in a cross shape with the plurality of concrete longitudinal beams (2); the plurality of concrete longitudinal beams (2) are arranged in the longitudinal direction of the box culvert body (1); and the plurality of concrete transverse beams (3) are arranged in the transverse direction of the box culvert body (1).

4. A foundation reinforcement device for box culvert jacking construction according to claim 3, characterized in that: A groove (8) is formed between each of the concrete longitudinal beams (2) and the concrete cross beam (3), and a protruding block (7) inserted into the corresponding groove (8) is provided at the top of each of the concrete support columns (5).

5. The foundation reinforcement device for box culvert jacking construction according to claim 3 is characterized by: The concrete longitudinal beam (2) is provided with a first framework for structural support, the first framework comprising four first steel bars (9) and a plurality of first steel bar sleeves (10), the plurality of first steel bar sleeves (10) being distributed at equal distances along the axial direction of the first steel bars (9), and the plurality of first steel bars (9) being tied to the inner side of the four hanging corners of each first steel bar sleeve (10) by means of binding bars.

6. A foundation reinforcement device for box culvert jacking construction according to claim 3, characterized in that: The concrete cross beam (3) is provided with a second frame for structural support, the second frame comprising four second steel bars (11) and a plurality of second steel bar sleeves (12), the plurality of second steel bar sleeves (12) being distributed at equal distances along the axial direction of the second steel bars (11), and the plurality of second steel bars (11) being tied to the inner side of the four hanging corners of each second steel bar sleeve (12) by means of binding bars.

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