Double-row pile inclined strut foundation pit supporting structure

Abstract

The utility model discloses a double-row pile inclined strut foundation pit supporting structure which comprises long column piles, H-shaped steel, short column piles, sliding auxiliary components, inclined strut adjusting mechanisms, a cross beam and supporting brackets. The long column piles and the short column piles are arranged in parallel; the beam is fixedly connected to the top of the long column pile. One end of the H-shaped steel is pre-buried on the long column pile, and the other end is fixedly connected to the upper end of the short column pile and extends out of the short column pile by a certain distance; the ends, extending out of the short column piles, of the H-shaped steel are slidably connected with sliding auxiliary parts. One end of the inclined strut adjusting mechanism is hinged with the sliding auxiliary component, and the other end is fixedly connected with the supporting bracket; compared with the prior art, the supporting device has the advantages that the sliding auxiliary component is improved, telescopic adjustment is achieved through the inclined strut adjusting mechanism, the stability is enhanced, meanwhile, the sliding auxiliary component abuts against the short column pile in a sliding mode, shaking is reduced, the safety coefficient is improved, and the supporting device is easy to operate, disassemble and adjust and high in practicability. The method is suitable for popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of building foundation pit support, in particular to a double-row pile oblique bracing foundation pit support structure. Background Art

[0002] Foundation pit support is a construction technology used to ensure the stability and safety of foundation pits in construction. Its purpose is to ensure that the slope of the foundation pit remains stable during the construction of underground structures, while protecting the buildings and environment around the foundation pit from damage. The double-row pile support structure is a commonly used support method in foundation pit projects. It consists of two rows of parallel piles, which are connected by crossbeams or crown beams to form a solid frame structure to support and stabilize the side walls of the foundation pit. The use of steel-made diagonal braces can further enhance the stability of the structure, effectively prevent the collapse and deformation of the foundation pit slopes, and ensure construction safety and the stability of the surrounding environment. However, as time goes by, the support structure requires regular maintenance and inspection. In the prior art, the foundation pit support structure is not easy to disassemble and adjust. In response to the above problems, the utility model discloses a double-row pile diagonal brace foundation pit support structure. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a double-row pile oblique support foundation pit supporting structure, which solves the problem that the foundation pit supporting structure is inconvenient to disassemble, assemble and adjust.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A double-row pile diagonal brace foundation pit support structure, comprising a long column pile, an H-shaped steel, a short column pile, a sliding auxiliary component, a diagonal brace adjustment mechanism, a crossbeam, and a supporting corbel; the long column pile and the short column pile are arranged in parallel; the crossbeam is fixedly connected to the top of the long column pile; it is characterized in that: one end of the H-shaped steel is pre-buried in the long column pile, and the other end thereof is fixedly connected to the upper end of the short column pile and extends out of the short column pile for a certain distance; the end of the H-shaped steel extending out of the short column pile is slidably connected to the sliding auxiliary component; one end of the diagonal brace adjustment mechanism is hinged to the sliding auxiliary component and the other end is fixedly connected to the supporting corbel; the web of the H-shaped steel is arranged horizontally.

[0006] Furthermore, the sliding auxiliary component includes a main body located below the H-shaped steel, a guide portion located on both sides of the H-shaped steel and fixedly connected to the upper part of the main body, and an engaging portion fixedly connected to the upper end of the guide portion and engaged with the upper end of the H-shaped steel; the engaging portion is in an inverted L shape.

[0007] Furthermore, the sliding auxiliary component is provided with a connecting seat connected to the diagonal support adjustment mechanism.

[0008] Furthermore, a pin hole is provided on the connecting seat, and the upper end of the diagonal support adjustment mechanism is connected to the pin hole through a pin shaft.

[0009] Furthermore, the diagonal support adjustment mechanism includes a first support rod, a second support rod, and an active head assembly; the upper end of the first support rod is hinged to the sliding auxiliary component, and the lower end is fixedly connected to the second support rod; the upper end of the second support rod is fixedly connected to the lower end of the first support rod, and the lower end is fixedly connected to the active head assembly; the active head assembly is fixedly connected to the supporting corbel.

[0010] Furthermore, the movable head assembly includes an movable head, a plurality of U-shaped wedges, and a steel support; the steel support includes a base, a steel plate, a boss, and a bottom plate; two parallel steel plates are fixedly connected to the base; a boss is fixedly connected to the outer side of the steel plate, and a bottom plate is fixedly connected to the bottom; a socket for the steel plate to be inserted into is provided at the lower end of the movable head; the upper end of the steel plate is inserted into the socket; the U-shaped wedge is buckled on the steel plate and is located between the boss and the movable head.

[0011] Furthermore, the upper end of the bottom plate is in the shape of an arc groove.

[0012] The above technical solution has the following advantages:

[0013] 1. The utility model can more effectively transfer the load to the pile column by adopting the sliding auxiliary components, thereby enhancing the supporting capacity of the entire supporting structure. The improved components meet the requirements of easy disassembly and assembly, so that the components can be quickly installed or removed during construction or maintenance.

[0014] 2. By adopting the diagonal support adjustment mechanism, rapid adjustment can be performed in different construction stages or under different load conditions to adapt to changes in the environment around the foundation pit and play a role in supporting piles. The detachable connection is adopted in the connection method, which is convenient for disassembly and adjustment, which can speed up the construction speed, shorten the project cycle, and thus improve the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a double-row pile diagonal bracing foundation pit support structure, and a hydraulic cylinder is shown in the figure;

[0016] Figure 2 This is the left view of the double-row pile diagonal bracing foundation pit support structure;

[0017] Figure 3 It is a front view of a double-row pile diagonal bracing foundation pit support structure, showing a hydraulic cylinder;

[0018] Figure 4 for Figure 3 A partial enlarged view of part A;

[0019] Figure 5 It is an axonometric view of the sliding connection components of the double-row pile diagonal bracing foundation pit support structure;

[0020] Figure 6 for Figure 2 A partial enlarged view of part B;

[0021] Figure 7 This is an exploded view of the active head assembly of the double-row pile diagonal bracing foundation pit support structure, where 1404 is a hydraulic cylinder added during use and is not included in the active head assembly;

[0022] In the figure, 1-long column pile; 2-H-shaped steel; 3-short column pile; 4-sliding auxiliary component; 5-slant support adjustment mechanism; 6-crossbeam; 7-connecting seat; 8-pin shaft; 9-split pin; 10-main body; 11-guide part; 12-fitting part; 13-pin hole; 14-active head assembly; 15-supporting bracket; 501-first support rod; 502 second support rod; 1402-active head; 1403-U-shaped wedge; 1404-hydraulic cylinder; 1406-base; 1407-boss; 1408-bottom plate; 1409-support plate; 1410-steel plate; DETAILED DESCRIPTION

[0023] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] like Figure 1 As shown in FIG. 7 , a double-row pile diagonal brace foundation pit supporting structure comprises a long column pile 1, an H-shaped steel 2, a short column pile 3, a sliding auxiliary component 4, a diagonal brace adjusting mechanism 5, a crossbeam 6, and a supporting corbel 15; wherein the long column pile 1 and the short column pile 3 are arranged in parallel; the crossbeam 6 is fixedly connected to the top of the long column pile 1; one end of the H-shaped steel 2 is pre-buried in the long column pile 1, and the other end thereof is fixedly connected to the upper end of the short column pile 3 and extends out of the short column pile 3 for a distance; the end of the H-shaped steel 2 extending out of the short column pile 3 is slidably connected to the sliding auxiliary component 4; one end of the diagonal brace adjusting mechanism 5 is hinged to the sliding auxiliary component 4; one end of the diagonal brace adjusting mechanism 5 is hinged to the sliding auxiliary component 4, and the other end is fixedly connected to the supporting corbel 15; the supporting corbel 15 is fixedly connected to the soil (cast on the soil by concrete); the web of the H-shaped steel 2 is arranged horizontally.

[0025] Specifically, in order to enable the sliding auxiliary component 4 to be better disassembled and moved, the sliding auxiliary component 4 includes a main body 10 located below the H-shaped steel 2, a guide portion 11 located on both sides of the H-shaped steel 2 and fixedly connected to the upper part of the main body 10, and an engaging portion 12 fixedly connected to the upper end of the guide portion 11 and engaged with the upper end of the H-shaped steel 2; the engaging portion 12 is an inverted L-shape.

[0026] Specifically, in order to make it more stable, increase the stability of the overall structure, and prevent structural deformation or damage due to improper force, the sliding auxiliary component 4 is provided with a connecting seat 7 connected to the diagonal brace adjustment mechanism 5, and the connecting seat 7 can be connected to the diagonal brace adjustment mechanism 5 through a pin shaft 8.

[0027] Specifically, in order to fix the diagonal brace adjustment mechanism 5, the diagonal brace adjustment mechanism 5 can be locked in a specific position to prevent sliding or displacement during use. A pin hole 13 is provided on the connecting seat 7, and the pin shaft 8 is inserted into the pin hole 13 and fixedly connected with a cotter pin 9, so that the upper end of the first support rod 501 is hinged to the sliding auxiliary component 4.

[0028] Specifically, in order to adapt to more construction environments, a multi-section connection method is adopted to form the diagonal brace adjustment mechanism 5, and the diagonal brace adjustment mechanism 5 includes a first support rod 501, a second support rod 502, and an active head assembly 14; the upper end of the first support rod 501 is hinged to the sliding auxiliary component 4, and the lower end is fixedly connected to the second support rod 502; the upper end of the second support rod 502 is fixedly connected to the lower end of the first support rod 501, and the lower end is fixedly connected to the active head assembly 14; the active head assembly 14 is fixedly connected to the support bracket 15;

[0029] Specifically, in order to enable more precise adjustment, the movable head assembly 14 includes an movable head 1402, a plurality of U-shaped wedges 1403, and a steel support 1405; the steel support 1405 includes a base 1406, a steel plate 1410, a boss 1407, and a bottom plate 1408; two parallel steel plates 1410 are fixedly connected to the base 1406; the outer side of the steel plate 1410 is fixedly connected to the boss 1407, and the bottom is fixedly connected to the bottom plate 1408; the lower end of the movable head 1402 is provided with a socket 1411 for the steel plate 1410 to extend into; the upper end of the steel plate 1410 extends into the socket 1411; the U-shaped wedge 1403 is buckled on the steel plate 1410 and is located between the boss 1407 and the movable head 1402.

[0030] Specifically, in order to better place the hydraulic cylinder 1404, the upper end of the bottom plate 1408 is in the shape of an arc groove.

[0031] The utility model adopts a sliding auxiliary component 4 to make the foundation pit support device more convenient in the process of installation and disassembly, and adopts a diagonal support adjustment mechanism 5 to improve the stability and flexibility of the overall structure; by placing a hydraulic cylinder 1404 on the bottom plate 1408, the hydraulic cylinder 1404 pushes the active head 1402 to separate from the base 1406, and then inserts a plurality of U-shaped wedges 1403 between the boss 1407 and the active head 1402, the utility model can be adjusted as needed during use, can cope with diverse geological conditions and complex construction scenes, and provides a more flexible and efficient solution strategy for construction.

[0032] By providing a support plate 1409 at the end of the piston rod of the hydraulic cylinder 1404, the local stress generated when the hydraulic cylinder 1404 is lifted can be effectively reduced.

[0033] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A double-row pile diagonal bracing foundation pit support structure, comprising a long column pile (1), an H-shaped steel (2), a short column pile (3), a sliding auxiliary component (4), a diagonal bracing adjustment mechanism (5), a crossbeam (6), and a supporting corbel (15); the long column pile (1) and the short column pile (3) are arranged in parallel; the crossbeam (6) is fixedly connected to the top of the long column pile (1); characterized in that: One end of the H-shaped steel (2) is pre-buried in the long column pile (1), and the other end is fixedly connected to the upper end of the short column pile (3) and extends out of the short column pile (3) for a certain distance; the end of the H-shaped steel (2) extending out of the short column pile (3) is slidably connected to the sliding auxiliary component (4); one end of the diagonal brace adjustment mechanism (5) is hinged to the sliding auxiliary component (4) and the other end is fixedly connected to the supporting corbel (15); the web of the H-shaped steel (2) is arranged horizontally.

2. A double-row pile diagonal bracing foundation pit support structure according to claim 1, characterized in that: The sliding auxiliary component (4) comprises a main body (10) located below the H-shaped steel (2), guide parts (11) located on both sides of the H-shaped steel (2) and fixedly connected to the upper part of the main body (10), and an engaging part (12) fixedly connected to the upper end of the guide part (11) and engaged with the upper end of the H-shaped steel (2); the engaging part (12) is in an inverted L shape.

3. A double-row pile diagonal bracing foundation pit support structure according to claim 1, characterized in that: The sliding auxiliary component (4) is provided with a connecting seat (7) connected to the diagonal support adjustment mechanism (5).

4. A double-row pile diagonal bracing foundation pit support structure according to claim 3, characterized in that: The connecting seat (7) is provided with a pin hole (13), and the upper end of the diagonal support adjustment mechanism (5) is connected to the pin hole (13) via a pin shaft (8).

5. The double-row pile diagonal bracing foundation pit support structure according to claim 1 is characterized in that: The diagonal support adjustment mechanism (5) comprises a first support rod (501), a second support rod (502), and an active head assembly (14); the upper end of the first support rod (501) is hinged to the sliding auxiliary component (4), and the lower end is fixedly connected to the second support rod (502); the upper end of the second support rod (502) is fixedly connected to the lower end of the first support rod (501), and the lower end is fixedly connected to the active head assembly (14); the active head assembly (14) is fixedly connected to the supporting bracket (15).

6. A double-row pile diagonal bracing foundation pit support structure according to claim 5, characterized in that: The movable head assembly (14) comprises an movable head (1402), a plurality of U-shaped wedges (1403), and a steel support (1405); the steel support (1405) comprises a base (1406), a steel plate (1410), a boss (1407), and a bottom plate (1408); two parallel steel plates (1410) are fixedly connected to the base (1406); the outer side of the steel plate (1410) is fixedly connected to the boss (1407), and the bottom is fixedly connected to the bottom plate (1408); the lower end of the movable head (1402) is provided with an insertion hole (1411) for the steel plate (1410) to extend into; the upper end of the steel plate (1410) extends into the insertion hole (1411); the U-shaped wedge (1403) is buckled on the steel plate (1410) and is located between the boss (1407) and the movable head (1402).

7. A double-row pile diagonal bracing foundation pit support structure according to claim 6, characterized in that: The upper end of the bottom plate (1408) is in the shape of an arc groove.

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