Foundation pit supporting structure

Abstract

The utility model discloses a foundation pit supporting structure which comprises steel sheet piles with locking openings in the two sides, and the steel sheet piles are arranged to be in lap joint with each other to form a foundation pit support. The universal angle piles are arranged to be mounted at the corners of the pit enclosure; one side of each connecting pile is provided with a locking opening structure which is the same as the steel sheet pile, so that the connecting piles can be matched with the steel sheet piles to form lap joint; the steering structure is arranged between the connecting pile and the universal angle pile, so that the connecting pile can rotate around the periphery of the universal angle pile; and the limiting structure is arranged between the connecting pile and the universal angle pile and is matched with the steering structure to limit separation of the connecting pile and the universal angle pile on the basis of meeting rotation of the connecting pile and the universal angle pile. The utility model has the following advantages and effects: the convenient lap joint of the pit surrounding corner can be realized, and the pit surrounding corner can be reused, so that the construction efficiency is improved, and the construction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering, in particular to a foundation pit supporting structure. Background Art

[0002] Foundation pit support is an important technology in civil engineering, mainly used to protect the soil wall during the excavation of the foundation pit, prevent the soil wall from collapsing, and ensure construction safety. The design and construction of the foundation pit support system are crucial to ensure the smooth progress of underground projects. The support types of foundation pits include steel sheet piles, which are prefabricated steel plate-like materials. They are driven into the soil by pile driving equipment and cooperate with the locks formed on the steel sheet piles to achieve the overlap between adjacent steel sheet piles, so as to form a continuous retaining wall.

[0003] During the construction of foundation pit support, there are often many corner conditions of pit enclosures. The existing steel sheet piles are affected by their materials and shapes, so they cannot be overlapped at the corner pit enclosures. Generally, the overlap of the corner pit enclosures is achieved by on-site customized welding or on-site bending of steel sheet piles. This greatly increases the workload of construction workers and reduces construction efficiency. In addition, the customized steel sheet piles cannot be reused in the later stage, which increases the construction cost to a certain extent. Utility Model Content

[0004] The purpose of the utility model is to provide a foundation pit supporting structure, which can realize convenient overlapping of pit corners and can be reused, so as to improve construction efficiency and reduce construction costs.

[0005] The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a foundation pit support structure, comprising: steel sheet piles with locking openings on both sides, which are arranged to overlap each other to form a foundation pit enclosure; universal angle piles, which are arranged to be installed at the corners of the pit enclosure; at least two connecting piles, which are arranged to have the same locking structure as the steel sheet piles on one side so that they can cooperate with the steel sheet piles to form an overlap; a steering structure, which is arranged between the connecting piles and the universal angle piles so that the connecting piles can rotate around the outer periphery of the universal angle piles; a limiting structure, which is arranged between the connecting piles and the universal angle piles and cooperates with the steering structure to limit the separation of the two on the basis of satisfying the rotation of both the connecting piles and the universal angle piles.

[0006] By adopting the above technical solution, the universal angle pile cooperates with the connecting pile to form an overlap with the steel sheet pile at the corner of the pit enclosure, and cooperates with the set steering structure to realize the arbitrary adjustment of the overlap angle, so as to adapt to the overlapping working conditions of the pit enclosure corners at different angles, and overlap to form a continuous retaining wall under the action of the limiting structure. The above structure can realize convenient overlap of the pit enclosure corner and can be reused, so as to improve construction efficiency and reduce construction costs.

[0007] It is further configured as follows: a plurality of the steering structures and the limiting structures are arranged along the length direction of the universal angle pile, and the steering structures and the limiting structures are arranged in a one-to-one correspondence.

[0008] By adopting the above technical solution and the above arrangement, the strength of the connection structure between the universal angle pile and the connecting pile is improved to better achieve the supporting and load-bearing function.

[0009] It is further configured that: the steering structure includes a steering groove formed on the outer peripheral wall of the universal angle pile and a steering block slidably arranged in the steering groove and fixedly connected to the connecting pile.

[0010] By adopting the above technical solution, the rotating block cooperates with the rotating groove to realize the circumferential rotation between the universal angle pile and the connecting pile, so as to adapt to the pit surrounding angle conditions of different angles, so that the structure has better versatility, thereby realizing the recycling of the structure.

[0011] It is further configured that: the rotating groove is arranged around the outer peripheral wall of the universal angle pile to form a ring shape.

[0012] By adopting the above technical solution, the rotating groove of the annular structure can realize the 360-degree corner overlap of the steel sheet pile at the corner, so that it has better universal adaptability.

[0013] It is further configured as follows: the limiting structure includes a limiting groove arranged on a side wall of the rotating groove and a limiting block fixedly arranged on the rotating block. When the rotating block is located in the rotating groove, the limiting block is located in the limiting groove. The limiting groove is extended along the rotation path of the rotating groove and the limiting block is slidably matched with the limiting groove.

[0014] By adopting the above technical solution, while the rotating block rotates along the rotating groove, the limit block rotates along the limit groove under the action of the rotating block, so that the premise of constituting the limit of the two will not interfere with the normal rotation of the two, thereby achieving the two purposes of rotation and force bearing.

[0015] It is further configured as follows: the universal angle pile is provided with an installation channel corresponding to each rotating groove, connecting the rotating groove with the outside world; the rotating block and the limiting block are respectively installed in the rotating groove and the limiting groove through the installation channel; and a locking piece is detachably provided in the installation channel.

[0016] By adopting the above technical solution, the setting of the installation channel can realize the convenient replacement of damaged and deformed connecting piles, and different numbers of connecting piles can be installed on the universal angle piles to connect with the steel sheet piles according to working conditions, so that the structure can adapt to more different construction conditions and have better practicality.

[0017] It is further configured that: the locking member is a locking bolt threadedly connected to the installation channel, and when the locking bolt is fixed to the installation channel, the locking bolt does not protrude from the outer peripheral wall of the universal angle pile.

[0018] By adopting the above technical solution, the locking and unlocking operations of the installation channel are realized by the provided locking bolts, and the embedded structure ensures that the existing locking bolts will not interfere with the normal rotation of the connecting piles.

[0019] It is further configured as follows: the limiting groove is arranged on the upper side wall of the rotating groove.

[0020] By adopting the above technical solution, the probability of granular impurities entering the limiting groove is reduced, ensuring the smooth rotation of the connecting pile.

[0021] In summary, the utility model has the following beneficial effects: the utility model can realize convenient overlapping of pit enclosure corners and can be reused, thereby improving construction efficiency and reducing construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an embodiment;

[0023] Figure 2 A partial cross-sectional view of an embodiment;

[0024] Figure 3 It is a partial cross-sectional view of an embodiment.

[0025] In the figure: 1. Locking mouth; 2. Steel sheet pile; 3. Universal angle pile; 4. Connecting pile; 5. Steering structure; 51. Turning groove; 52. Turning block; 6. Limiting structure; 61. Limiting groove; 62. Limiting block; 7. Installation channel; 8. Locking piece. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0027] refer to Figures 1 to 3 A foundation pit support structure comprises: steel sheet piles 2 with locking openings 1 on both sides, which are arranged to overlap each other to form foundation pit enclosure; universal angle piles 3, which are arranged to be installed at the corners of the pit enclosure; at least two connecting piles 4, which are arranged to have the same locking opening 1 structure as the steel sheet piles 2 on one side so that they can cooperate with the steel sheet piles 2 to form an overlap; a steering structure 5, which is arranged between the connecting piles 4 and the universal angle piles 3 so that the connecting piles 4 can rotate around the outer periphery of the universal angle piles 3; a limiting structure 6, which is arranged between the connecting piles 4 and the universal angle piles 3 and cooperates with the steering structure 5 to limit the separation of the two on the basis of satisfying the rotation of both the connecting piles 4 and the universal angle piles 3.

[0028] The lock opening 1 on the steel sheet pile 2 is formed by bending the steel sheet pile 2, and the lock opening 1 on the connecting pile 4 is formed by bending the connecting pile 4. A plurality of steering structures 5 and limiting structures 6 are arranged along the length direction of the universal angle pile 3, and the steering structures 5 and limiting structures 6 are arranged one by one.

[0029] The steering structure 5 includes a rotation groove 51 formed on the outer peripheral wall of the universal angle pile 3 and a rotation block 52 slidably disposed in the rotation groove 51 and integrally connected to the connecting pile 4. The rotation groove 51 is disposed around the outer peripheral wall of the universal angle pile 3 to form a circular ring.

[0030] The limiting structure 6 includes a limiting groove 61 disposed on a side wall of the rotating groove 51 and a limiting block 62 integrally disposed on the rotating block 52. When the rotating block 52 is located in the rotating groove 51, the limiting block 62 is located in the limiting groove 61. The limiting groove 61 is extended along the rotation path of the rotating groove 51 to form a circular ring, and the limiting block 62 is slidably matched with the limiting groove 61. The limiting groove 61 is disposed on the upper side wall of the rotating groove 51.

[0031] The universal angle pile 3 is provided with a mounting channel 7 corresponding to each rotating groove 51, which connects the rotating groove 51 with the outside world. The rotating block 52 and the limiting block 62 are respectively installed in the rotating groove 51 and the limiting groove 61 through the mounting channel 7. A locking member 8 is detachably provided in the mounting channel 7. The locking member 8 is a locking bolt threadedly connected to the mounting channel 7. When the locking bolt is fixed to the mounting channel 7, the locking bolt does not protrude from the outer peripheral wall of the universal angle pile 3.

[0032] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A foundation pit support structure, characterized in that: include: Steel sheet piles (2) with locking openings (1) on both sides are arranged to overlap each other to form foundation pit enclosure; The universal angle pile (3) is arranged to be installed at the corner of the pit enclosure; at least two connecting piles (4) are arranged to have a locking mouth (1) structure identical to that of the steel sheet pile (2) on one side so that they can cooperate with the steel sheet pile (2) to form an overlap; a steering structure (5) is arranged between the connecting pile (4) and the universal angle pile (3) so that the connecting pile (4) can rotate around the outer periphery of the universal angle pile (3); a limiting structure (6) is arranged between the connecting pile (4) and the universal angle pile (3) and cooperates with the steering structure (5) to limit the separation of the connecting pile (4) and the universal angle pile (3) on the basis of satisfying the rotation of both.

2. The foundation pit support structure according to claim 1, characterized in that: The steering structures (5) and the limiting structures (6) are arranged in a plurality along the length direction of the universal angle pile (3), and the steering structures (5) and the limiting structures (6) are arranged in a one-to-one correspondence.

3. The foundation pit supporting structure according to claim 1, characterized in that: The steering structure (5) comprises a steering groove (51) formed on the outer peripheral wall of the universal angle pile (3) and a steering block (52) slidably arranged in the steering groove (51) and fixedly connected to the connecting pile (4).

4. The foundation pit supporting structure according to claim 3 is characterized in that: The rotating groove (51) is arranged around the outer peripheral wall of the universal angle pile (3) to form a ring shape.

5. The foundation pit supporting structure according to claim 3, characterized in that: The limiting structure (6) comprises a limiting groove (61) arranged on a side wall of the rotating groove (51) and a limiting block (62) fixedly arranged on the rotating block (52); when the rotating block (52) is located in the rotating groove (51), the limiting block (62) is located in the limiting groove (61); the limiting groove (61) is extended along the rotation path of the rotating groove (51) and the limiting block (62) is slidably matched with the limiting groove (61).

6. The foundation pit supporting structure according to claim 5, characterized in that: The universal angle pile (3) is provided with a mounting channel (7) corresponding to each rotating groove (51) for connecting the rotating groove (51) with the outside world; the rotating block (52) and the limiting block (62) are respectively installed in the rotating groove (51) and the limiting groove (61) through the mounting channel (7); and a locking piece (8) is detachably provided in the mounting channel (7).

7. The foundation pit supporting structure according to claim 6, characterized in that: The locking member (8) is a locking bolt threadedly connected to the mounting channel (7); when the locking bolt is fixed to the mounting channel (7), the locking bolt does not protrude from the outer peripheral wall of the universal angle pile (3).

8. The foundation pit supporting structure according to claim 5, characterized in that: The limiting groove (61) is arranged on the upper side wall of the rotating groove (51).

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