Concrete support anti-falling soil accumulation device for excavation construction of subway open-cut station

Abstract

The application discloses a concrete support anti-falling soil accumulation device for open-cut metro station excavation construction, which comprises an inflatable anti-falling soil cover body, an inflation nozzle, a splicing assembly, a fixing assembly and universal ball-bearing pulleys. The inflation nozzle is arranged on the inflatable anti-falling soil cover body, and the inflatable anti-falling soil cover body is in a triangular ridge structure after being inflated. The universal ball-bearing pulleys are arranged on the bottom surface of the inflatable anti-falling soil cover body, forming an anti-falling soil unit, which is movably arranged on the top surface of the concrete support of the open-cut metro station structure. The anti-falling soil units are spliced in sequence along the length direction of the concrete support through the splicing assembly, forming an anti-falling soil accumulation structure, which is fixed on the top surface of the concrete support through the fixing assembly and covers the top surface of the concrete support. The application relates to the technical field of metro construction and can solve the problems of the existing technology, such as the injury caused by the accumulation of falling soil on the concrete support, the inconvenience of disassembling and moving the metal protective plate.

Description

Technical Field

[0001] This invention relates to the field of subway construction technology, and in particular to a concrete support device for preventing soil from falling during the excavation of subway open-cut stations. Background Technology

[0002] Subway construction technology can effectively alleviate the pressure on citizens' travel and reduce environmental pollution. The open-cut method for subway stations is widely used in the field. During the excavation of the foundation pit, soil accumulates on the concrete supports within the pit. If this accumulated soil falls during subsequent construction, it can affect the personal safety of workers below. Therefore, workers need to be assigned to clear the soil accumulated on the concrete supports. However, there is no temporary protection on both sides of the concrete supports, and workers may suffer falls from heights while clearing the soil.

[0003] To prevent soil accumulating on concrete supports in foundation pits from falling and injuring people, protective plates are often installed on the concrete supports during construction. Existing protective plates are mostly made of metal, which are heavy, inconvenient to assemble, and difficult to move. If the excavator mishandles the excavation during foundation pit construction, the metal plates can easily fall, posing a significant safety hazard. Therefore, there is a need for a concrete support anti-soil accumulation device for subway open-cut station excavation construction that can solve the problems of soil accumulating on concrete supports causing injury and the inconvenience of disassembling and moving metal protective plates. Summary of the Invention

[0004] The purpose of this invention is to provide a concrete support device for preventing soil from falling during the excavation of subway open-cut stations, which can solve the problems of soil falling from concrete supports and causing injury, as well as the inconvenience of disassembling and moving metal protective plates in the prior art.

[0005] This invention is implemented as follows:

[0006] A concrete support and soil-prevention stacking device for open-cut subway station excavation includes an inflatable soil-prevention cover, an inflation nozzle, splicing components, a fixing component, and universal ball bearing pulleys. The inflation nozzle is installed on the inflatable soil-prevention cover, so that the inflatable soil-prevention cover forms a triangular roof-like structure after inflation. Several universal ball bearing pulleys are spaced apart on the bottom surface of the inflatable soil-prevention cover to form soil-prevention units. The soil-prevention units are movably installed on the top surface of the concrete support of the open-cut subway station structure. Several soil-prevention units are spliced ​​sequentially along the length of the concrete support by the splicing components to form a soil-prevention stacking structure. The soil-prevention stacking structure is fixed on the top surface of the concrete support by the fixing component, and the soil-prevention stacking structure covers the top surface of the concrete support.

[0007] The splicing assembly includes button ferrules, button females, and connecting sections; the inflatable soil-prevention cover has connecting sections at both ends along the length of the concrete support, with several button ferrules spaced apart on the connecting section at one end of the inflatable soil-prevention cover, and several button females spaced apart on the connecting section at the other end of the inflatable soil-prevention cover; the button ferrules can match and fasten with the button females, allowing two adjacent inflatable soil-prevention covers to be detachably spliced ​​together via the connecting sections and the button ferrules and button females.

[0008] The fixing components include connecting fixing rings, fixing ropes, and fixing rods; several connecting fixing rings are arranged in a row on the inflatable anti-falling soil cover, and the fixing ropes pass through each connecting fixing ring of the anti-falling soil accumulation structure in sequence. The two ends of the fixing ropes are respectively fixed to the concrete support by fixing rods, so that the anti-falling soil accumulation structure is fixed to the concrete support.

[0009] The concrete support has concrete cap beams at both ends, and the two ends of the anti-falling soil accumulation structure are attached to the concrete cap beams at both ends of the concrete support.

[0010] The width of the inflatable anti-falling soil cover is the same as the width of the concrete support. The inflatable anti-falling soil cover is provided with corner protectors on both sides of the concrete support along the width direction. The two corner protectors are respectively attached to the two sides of the concrete support.

[0011] The corner protectors are made of soft leather.

[0012] The inflatable soil-proof cover is made of a composite material of flocked fabric and waterproof fabric.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. This invention features an inflatable anti-falling soil cover. When inflated, the cover expands to form a triangular ridge structure, causing soil falling onto the concrete support to slide to both sides. This prevents soil from accumulating on the top surface of the concrete support, eliminating the need for subsequent cleaning of the concrete support surface and preventing soil from falling and injuring people during subsequent construction. This improves construction safety. In addition, the inflatable structure is lightweight, easy to assemble, disassemble, and move, and offers higher safety in use.

[0015] 2. Because the present invention is equipped with splicing components and fixing components, multiple inflatable anti-falling soil covers can be connected by the male and female buttons of the splicing components to form an integral anti-falling soil accumulation structure according to the length of the concrete support. The splicing and disassembly are convenient and can be applied to concrete supports of different sizes. At the same time, the anti-falling soil accumulation structure is fixed to the concrete support by the fixing components, which is convenient to assemble and disassemble, and has high flexibility and versatility.

[0016] 3. Because the present invention is equipped with universal ball bearing pulleys, it is easy to move individual inflatable anti-fall soil covers and the entire anti-fall soil accumulation structure, making disassembly, adjustment and reuse more convenient. Attached Figure Description

[0017] Figure 1 This is an installation plan view of the concrete support anti-soil accumulation device for open-cut subway station excavation construction of the present invention;

[0018] Figure 2 This is an installation side view of the concrete support device for preventing soil accumulation during open-cut subway station excavation construction according to the present invention.

[0019] Figure 3 This is an installation elevation view of the concrete support device for preventing soil accumulation during open-cut subway station excavation construction according to the present invention.

[0020] In the diagram, 1 is an inflatable anti-falling soil cover, 2 is a corner protector, 3 is an air inlet, 4 is a connecting and fixing ring, 5 is a fixing rope, 6 is a fixing rod, 7 is a button, 8 is a button, 9 is a connecting section, 10 is a universal ball pulley, 11 is a concrete support, 12 is a concrete cap beam, and 13 is a concrete retaining wall. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] Please see the appendix Figure 1 To be continued Figure 3 A concrete support and soil-prevention stacking device for open-cut subway station excavation construction includes an inflatable soil-prevention cover 1, an inflation nozzle 3, splicing components, fixing components, and universal ball bearing pulleys 10. The inflation nozzle 3 is installed on the inflatable soil-prevention cover 1, so that the inflatable soil-prevention cover 1 forms a triangular roof-like structure after inflation. Several universal ball bearing pulleys 10 are respectively and spaced apart on the bottom surface of the inflatable soil-prevention cover 1 to form soil-prevention units. The soil-prevention units are movably installed on the top surface of the concrete support 11 of the subway open-cut station structure. Several soil-prevention units are spliced ​​sequentially along the length of the concrete support 11 by the splicing components to form a soil-prevention stacking structure. The soil-prevention stacking structure is fixed on the top surface of the concrete support 11 by the fixing components, and the soil-prevention stacking structure can cover the entire or partial top surface of the concrete support 11.

[0023] Preferably, the inflatable soil-prevention cover 1 has pre-reserved inflation and deflation interfaces, and the inflation nozzle 3 is connected to the inflation and deflation interfaces, facilitating the inflation and deflation of the inflatable soil-prevention cover 1 using an existing air pump. After inflation, the inflatable soil-prevention cover 1 forms a triangular ridge-like structure, which can guide and slide soil falling onto the concrete support 11, thereby ensuring that soil does not accumulate on the top surface of the concrete support 11, and thus avoiding the possibility of soil accumulation falling and injuring people during subsequent construction.

[0024] The material of the inflatable soil fall protection cover 1 can be adapted to the actual soil fall situation to ensure the necessary cushioning, waterproofing and other performance requirements. The inflatable soil fall protection cover 1 adopts an inflatable structure, which is lightweight and easier to disassemble, assemble and adjust. Even if it falls, it will not cause great injury to personnel and components below, and the construction safety is higher.

[0025] The inflatable soil-prevention cover 1 can be produced in a standardized manner. Depending on the different lengths of the concrete support 11, a corresponding number of inflatable soil-prevention covers 1 are spliced ​​together to cover the entire length of the concrete support 11 or a designated area, effectively preventing soil accumulation on the concrete support 11. The omnidirectional ball bearing pulley 10 allows for flexible movement of the inflatable soil-prevention cover 1 on the concrete support 11, facilitating its assembly, disassembly, and adjustment.

[0026] Please see the appendix Figure 1 and attached Figure 3 The splicing assembly includes button 7, button 8, and connecting section 9; the inflatable soil-prevention cover 1 has connecting sections 9 at both ends along the length of the concrete support 11, and a number of button 7 are spaced apart on the connecting section 9 at one end of the inflatable soil-prevention cover 1, and a number of button 8 are spaced apart on the connecting section 9 at the other end of the inflatable soil-prevention cover 1; the button 7 can be matched and fastened with the button 8, so that two adjacent inflatable soil-prevention covers 1 can be detachably spliced ​​together through the connecting section 9 via the button 7 and the button 8.

[0027] When two adjacent inflatable soil-proof covers 1 are spliced ​​together, the adjacent connecting sections 9 are spliced ​​together and interlocked by button 7 and button 8, ensuring reliable splicing and convenient disassembly of the two adjacent inflatable soil-proof covers 1, thereby making the entire soil-proof stacking structure more convenient to install.

[0028] Please see the appendix Figure 1 and attached Figure 3 The fixing components include connecting fixing rings 4, fixing ropes 5, and fixing rods 6; several connecting fixing rings 4 are arranged in a row on the inflatable anti-falling soil cover 1, and the fixing ropes 5 pass through each connecting fixing ring 4 of the anti-falling soil accumulation structure in sequence. The two ends of the fixing ropes 5 are respectively fixed to the concrete support 11 by the fixing rods 6, so that the anti-falling soil accumulation structure is fixed to the concrete support 11.

[0029] Preferably, the connecting and fixing rings 4 are located at the bottom of both sides of the inflatable soil-prevention cover 1, so that the fixing ropes 5 are fixed to the bottom of the inflatable soil-prevention cover 1, lowering the center of gravity and improving the installation stability of the inflatable soil-prevention cover 1. This prevents it from shifting under external forces such as wind loads, thus ensuring the reliable installation of the entire soil-prevention stacking structure. Three connecting and fixing rings 4 can be equally spaced at both ends and the middle of the bottom of each side of the inflatable soil-prevention cover 1. The fixing ropes 5 are threaded through and connected to the three connecting and fixing rings 4 to ensure the stable connection of the inflatable soil-prevention cover 1.

[0030] Preferably, holes can be drilled in the concrete support 11 for inserting the fixing rod 6, or the fixing rod 6 can be fixed on the concrete support 11 by means of expansion bolts, which is conducive to ensuring the installation of the anti-falling soil accumulation structure firmly and conveniently by using the fixing rod 6.

[0031] Please see the appendix Figure 1 and attached Figure 3 The concrete support 11 has two ends of concrete cap beams 12, and the two ends of the anti-falling soil accumulation structure are attached to the concrete cap beams 12 at both ends of the concrete support 11.

[0032] Both the concrete support 11 and the concrete cap beam 12 are standard retaining structures for open-cut subway stations, and will not be described in detail here. Since the concrete cap beam 12 is constructed at both ends of the top of the concrete support 11, when installing the anti-falling soil accumulation structure, both ends of the anti-falling soil accumulation structure can be extended to the concrete cap beam 12 to ensure that the concrete support 11 is covered and blocked by soil along its entire length. The concrete cap beam 12 at both ends can limit the anti-falling soil accumulation structure, further improving the stability of the anti-falling soil accumulation structure during installation and use.

[0033] Please see the appendix Figure 2 The width of the inflatable anti-falling soil cover 1 is the same as the width of the concrete support 11. The inflatable anti-falling soil cover 1 is provided with corner protectors 2 on both sides of the concrete support 11 along the width direction. The two corner protectors 2 are respectively attached to the two sides of the concrete support 11.

[0034] The corner protector 2 can be used to protect the corners of the concrete support 11, and at the same time it can play a lateral limiting role for the inflatable anti-falling soil cover 1 to prevent the inflatable anti-falling soil cover 1 from sliding sideways.

[0035] The corner protector 2 is made of soft leather, which will not cause compression or wear to the corners of the concrete support 11. The material of the corner protector 2 can also be selected according to actual usage requirements.

[0036] The inflatable soil-proof cover 1 is made of a composite material of flocked fabric and waterproof fabric.

[0037] The composite material of the inflatable soil fall protection cover 1 is lightweight, making it easier and less strenuous to assemble and disassemble. It also avoids the problem of injury caused by accidental fall of the inflatable soil fall protection cover 1.

[0038] Please see the appendix Figure 1 To be continued Figure 3 The splicing method of the present invention is as follows:

[0039] During the construction of a subway open-cut station, a concrete support 11 is constructed on the inner side of the concrete retaining wall 13. The concrete support 11 is integrally cast with the concrete retaining wall 13 through a concrete capping beam 12 to form a whole support structure. During the construction of the subway open-cut station, the soil above is prone to fall and accumulate on the top surface of the concrete support 11. In subsequent construction, when the soil accumulated on the top surface of the concrete support 11 falls, it can cause injury to the construction personnel and components below.

[0040] Select appropriate size and quantity of inflatable anti-falling soil covers 1 according to the width and length of the concrete support 11. Place each inflatable anti-falling soil cover 1 on the top surface of the concrete support 1 in sequence, and make the corner protectors 2 on both sides of the inflatable anti-falling soil cover 1 respectively attached to the two sides of the concrete support 11. The two corner protectors 2 limit the inflatable anti-falling soil cover 1 to the concrete support 11 in the width direction to prevent the inflatable anti-falling soil cover 1 from sliding and falling.

[0041] Two adjacent inflatable anti-falling soil covers 1 are spliced ​​together by the button 7 and button 8 on the connecting section 9 at the end, so that all the inflatable anti-falling soil covers 1 are spliced ​​together to form an anti-falling soil accumulation structure, which is used to cover the top surface of the entire concrete support 11.

[0042] The fixing rope 5 is passed sequentially through each connecting fixing ring 4 of the anti-falling soil accumulation structure. The two ends of the fixing rope 5 are located on the outer sides of both ends of the anti-falling soil accumulation structure, and are fixed to the concrete support 11 by fixing rods 6. The fixing rods 6 can be fixed to the concrete support 11 by drilling, bolts, or other methods. The anti-falling soil accumulation structure is laterally limited by the corner protectors 2 on both sides and axially limited by the concrete cap beams 12 at both ends of the concrete support 11. At the same time, it is reinforced by fixing components to ensure the installation stability of the anti-falling soil accumulation structure on the top surface of the concrete support 11.

[0043] The inflatable soil-prevention cover 1 is inflated by the air inlet 3, causing it to expand and form a triangular ridge-like structure. This triangular ridge structure guides the soil falling onto the top surface of the concrete support 11, causing it to slide to both sides and preventing soil from accumulating on the top surface of the concrete support 11, thus eliminating the need for dedicated personnel to clean the concrete support 11. During subsequent construction, there will be no risk of soil accumulating on the top surface of the concrete support 11 falling and injuring people.

[0044] The inflatable anti-falling soil cover 1 and corner pads 2 are made of soft, lightweight materials, which can minimize the damage to people and structures below even if they fall.

[0045] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the invention. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A concrete support device for preventing soil from falling during open-cut subway station excavation, characterized in that: The system includes an inflatable anti-falling soil cover (1), an inflation nozzle (3), splicing components, fixing components, and universal ball pulleys (10). The inflation nozzle (3) is set on the inflatable anti-falling soil cover (1), so that the inflatable anti-falling soil cover (1) forms a triangular roof structure after inflation. Several universal ball pulleys (10) are set at intervals on the bottom surface of the inflatable anti-falling soil cover (1) to form anti-falling soil units. The anti-falling soil units are movably set on the top surface of the concrete support (11) of the subway open-cut station structure. Several anti-falling soil units are spliced ​​sequentially along the length direction of the concrete support (11) through splicing components to form an anti-falling soil accumulation structure. The anti-falling soil accumulation structure is fixed on the top surface of the concrete support (11) through fixing components. The anti-falling soil accumulation structure covers the top surface of the concrete support (11). The fixing components include connecting fixing rings (4), fixing ropes (5) and fixing rods (6); several connecting fixing rings (4) are arranged in a row on the inflatable anti-falling soil cover (1), and the fixing ropes (5) pass through each connecting fixing ring (4) of the anti-falling soil accumulation structure in sequence. The two ends of the fixing ropes (5) are fixed to the concrete support (11) by fixing rods (6) respectively, so that the anti-falling soil accumulation structure is fixed to the concrete support (11); The concrete support (11) has concrete cap beams (12) at both ends, and the two ends of the anti-falling soil accumulation structure are attached to the concrete cap beams (12) at both ends of the concrete support (11). The width of the inflatable anti-falling soil cover (1) is the same as the width of the concrete support (11). The inflatable anti-falling soil cover (1) is provided with corner protectors (2) on both sides of the concrete support (11) along the width direction. The two corner protectors (2) are respectively attached to the two sides of the concrete support (11).

2. The concrete support device for preventing soil from falling during open-cut subway station excavation as described in claim 1, characterized in that: The splicing components include button sub-buckles (7), button female-buckles (8), and connecting sections (9); the inflatable soil-prevention cover (1) is provided with connecting sections (9) at both ends along the length of the concrete support (11), and a number of button sub-buckles (7) are spaced apart on the connecting section (9) at one end of the inflatable soil-prevention cover (1), and a number of button female-buckles (8) are spaced apart on the connecting section (9) at the other end of the inflatable soil-prevention cover (1); the button sub-buckles (7) can be matched and fastened with the button female-buckles (8), so that two adjacent inflatable soil-prevention covers (1) can be detachably spliced ​​together through the connecting section (9) via the button sub-buckles (7) and the button female-buckles (8).

3. The concrete support device for preventing soil from falling during open-cut subway station excavation as described in claim 1, characterized in that: The corner protector (2) is made of soft leather.

4. The concrete support device for preventing soil from falling during open-cut subway station excavation as described in claim 1, characterized in that: The inflatable soil-proof cover (1) is made of a composite material of flocked fabric and waterproof fabric.

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