Foundation pit supporting structure for municipal house building construction

Abstract

The foundation pit supporting structure comprises an outer protection wall, and the top end of the inner wall of the outer protection wall is connected with an inner protection wall in a sliding mode. The insertion rod is rotationally inserted into the ground, the outer protection wall can be fixed, meanwhile, the dust isolation top ring can be fixed, at the moment, the bottom face of the soil fixing top ring can be tightly attached to the ground of a construction site, by arranging the dust isolation top ring, dust in a gap between the outer protection wall or the inner protection wall and the inner wall of a foundation pit can be prevented from flying out, and by arranging the dust isolation cover, the dust isolation cover can be used for fixing the outer protection wall or the inner protection wall. Dust in a foundation pit can be prevented from flying out, the absorbed dust can be collected by arranging the filter tank, meanwhile, redundant gas is exhausted, the disassembly and assembly steps of the filter tank are more convenient and faster by arranging a simple connection mode between the dust collection fan and the filter tank, meanwhile, constructors can conveniently treat the dust collected in the filter tank in a unified mode, and the construction efficiency is improved. And pollution to surrounding air is avoided, and meanwhile the safety in the construction process is improved.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment technology, and in particular to a foundation pit support structure for municipal building construction. Background Technology

[0002] Municipal building construction refers to engineering activities involving the construction of houses and municipal infrastructure within the scope of urban planning. This includes, but is not limited to, the construction of residential communities, commercial buildings, public facilities, and other buildings, as well as the construction of municipal infrastructure such as roads, bridges, drainage systems, water supply networks, and green landscaping. Foundation pit support structures are safety measures to protect the underground main structure and the surrounding environment of the foundation pit. They mainly involve temporary support, reinforcement, protection, and groundwater control measures for the foundation pit. In municipal building construction, especially when deep foundation pits are involved, the application of foundation pit support structures is crucial.

[0003] The following problems exist: In the existing technology, after the foundation pit is excavated, a support structure is set up inside the foundation pit to support the inner wall of the foundation pit to prevent collapse. After the support structure is set up, mechanical equipment such as pile drivers will enter the foundation pit to carry out construction. During the operation of these mechanical equipment, a certain amount of vibration will be caused to the bottom wall of the foundation pit. The vibration is transmitted through the bottom wall of the foundation pit to the inner wall of the foundation pit, which will cause dust to rise from the inner wall of the foundation pit and pollute the surrounding air. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A foundation pit support structure for municipal building construction includes an outer retaining wall, an inner retaining wall slidably connected to the top of the inner wall of the outer retaining wall, a dust-proof top ring fixedly connected to the top of the inner retaining wall, a soil-stabilizing top ring fixedly connected to the outer wall of the dust-proof top ring, and a dust-proof cover fitted onto the inner wall of the dust-proof top ring.

[0007] As a further description of the above technical solution:

[0008] A bottom ring is fixedly connected to the bottom end of the inner wall of the outer protective wall, and the bottom surface of the bottom ring and the bottom surface of the outer protective wall are both set on the same horizontal plane.

[0009] As a further description of the above technical solution:

[0010] A sliding ring is fixedly connected to one end of the outer wall of the inner protective wall, and a sliding groove is provided on the inner wall of the outer protective wall. The inner wall of the sliding groove is slidably connected to the outer wall of the sliding ring.

[0011] As a further description of the above technical solution:

[0012] The bottom ring and the top ring for soil stabilization have multiple sets of through holes running vertically through them, and each through hole has an insert rod fitted into its inner wall. Each insert rod has multiple sets of spiral grooves on its outer wall.

[0013] As a further description of the above technical solution:

[0014] The dust cover has a through-hole at the top center, and a dustproof ventilation net is fixedly connected to the top of the inner wall of the ventilation hole.

[0015] As a further description of the above technical solution:

[0016] Both ends of the dust cover are provided with through round holes, and a dust extraction fan is fixedly connected to the inner wall of each round hole. A filter canister is threadedly connected to the air outlet at the top of each dust extraction fan. Two sets of dust extraction fans and filter canisters are provided.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] (1) Insert the rod into the ground by rotating it. This can not only fix the outer retaining wall, but also fix the dust-proof top ring. At this time, the bottom surface of the soil-stabilizing top ring can be in close contact with the ground of the construction site. By setting the dust-proof top ring, dust can be prevented from floating out of the gap between the outer or inner retaining wall and the inner wall of the foundation pit. By setting the dust-proof cover, dust in the foundation pit can be prevented from floating out. By setting the filter canister, the absorbed dust can be collected and excess gas can be discharged. By setting the simple connection between the dust suction fan and the filter canister, the disassembly and assembly of the filter canister is more convenient and quick. It also makes it easier for construction personnel to uniformly treat the dust collected in the filter canister, which not only avoids pollution to the surrounding air, but also improves the safety of the construction process.

[0019] (2) By setting a spiral groove, when the insertion rod is inserted into the ground by rotation, the soil at the bottom of the ground will fill the inner wall of the entire spiral groove. At this time, the contact surface between the insertion rod and the ground can be increased, which helps to improve the stability of the entire fixed structure. When the inner protective wall slides up and down, the height of the foundation pit support structure can be adjusted. It is not only suitable for foundation pit protection of different depths, but also saves the erection time of construction personnel. Before the rainy day, a layer of tarpaulin can be laid on the top surface of the dustproof ventilation net so that rainwater cannot enter the foundation pit. This not only prevents a large amount of water from accumulating in the foundation pit, but also improves the stability of the foundation pit and helps to improve the safety of the entire foundation pit support structure. Attached Figure Description

[0020] Figure 1 This is a front view of the present invention;

[0021] Figure 2 This is a front sectional view of the present invention.

[0022] The correspondence between the labels and component names in the attached figures is as follows:

[0023] 1. Outer protective wall; 2. Bottom ring; 3. Inner protective wall; 4. Slip ring; 5. Slip groove; 6. Dustproof top ring; 7. Soil-stabilizing top ring; 8. Insert rod; 9. Spiral groove; 10. Dustproof cover; 11. Ventilation hole; 12. Dustproof ventilation net; 13. Dust suction fan; 14. Filter canister. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0027] Reference Figure 1-2This utility model provides an embodiment of a foundation pit support structure for municipal building construction, comprising an outer retaining wall 1, a bottom ring 2 fixedly connected to the bottom end of the inner wall of the outer retaining wall 1, the bottom surface of the outer retaining wall 1 and the bottom surface of the bottom ring 2 being set on the same horizontal plane, and an inner retaining wall 3 slidably connected to the top end of the inner wall of the outer retaining wall 1. When the inner retaining wall 3 slides up and down, the height of the foundation pit support structure can be adjusted, which is not only suitable for foundation pit protection of different depths, but also saves the erection time of construction personnel. A sliding ring 4 is fixedly connected to one end of the outer wall of the inner retaining wall 3, and a sliding groove 5 is opened on the inner wall of the outer retaining wall 1. The inner wall of the chute 5 is slidably connected to the outer wall of the slip ring 4. By setting the connection structure between the chute 5 and the slip ring 4, not only can the range of the inner wall 3 sliding up and down be limited, but the stability of the inner wall 3 during the up and down sliding process is also improved. A dust-proof top ring 6 is fixedly connected to the top of the inner wall 3. The outer diameter of the dust-proof top ring 6 is much larger than the outer diameter of the outer wall 1. The inner diameter of the dust-proof top ring 6 is the same as the inner diameter of the inner wall 3. A soil-stabilizing top ring 7 is fixedly connected to the outer wall of the dust-proof top ring 6. The top surface of the dust-proof top ring 6 and the top surface of the soil-stabilizing top ring 7 are both set on the same horizontal plane.

[0028] Multiple sets of through holes are made in the bottom ring 2 and the top soil stabilization ring 7, and each hole has a rod 8 fitted inside. The rod 8 is inserted into the ground by rotation, which not only fixes the outer retaining wall 1 but also the dust-proof top ring 6. At this time, the bottom surface of the top soil stabilization ring 7 can be tightly attached to the ground surface. The dust-proof top ring 6 prevents dust from escaping from the gap between the outer retaining wall 1 or inner retaining wall 3 and the inner wall of the foundation pit. Multiple sets of spiral grooves 9 are made on the outer wall of the rod 8. When the rod 8 is inserted into the ground by rotation, the soil will fill the inner wall of the spiral groove 9, increasing the contact area between the rod 8 and the ground, thus improving the stability of the entire fixing structure. A dust-proof cover 10 is fitted inside the dust-proof top ring 6. By installing a dust cover 10, dust in the foundation pit can be prevented from escaping. A ventilation hole 11 running vertically through the top center of the dust cover 10 facilitates the normal flow of air between the inside and outside of the foundation pit. A dustproof ventilation net 12 is fixedly connected to the top of the inner wall of the ventilation hole 11. The top surface of the dustproof ventilation net 12 and the top surface of the dust cover 10 are both set on the same horizontal plane. By installing the dustproof ventilation net 12, dust inside the foundation pit can be blocked. It is worth noting that before rain, a layer of tarpaulin can be laid on the top surface of the dustproof ventilation net 12, so that rainwater cannot enter the foundation pit. This not only prevents the accumulation of a large amount of water in the foundation pit, but also improves the stability of the foundation pit and helps to enhance the safety of the entire foundation pit support structure.

[0029] Both ends of the dust cover 10 have through holes, and a dust extraction fan 13 is fixedly connected to the inner wall of each hole. A filter canister 14 is threadedly connected to the air outlet at the top of the dust extraction fan 13. By setting up the dust extraction fan 13, a large amount of dust floating in the foundation pit can be absorbed. By setting up the filter canister 14, the absorbed dust can be collected and excess gas can be discharged. The simple connection between the dust extraction fan 13 and the filter canister 14 makes the disassembly and assembly of the filter canister 14 more convenient and quick. It also makes it easier for construction personnel to uniformly process the dust collected in the filter canister 14.

[0030] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A foundation pit support structure for municipal building construction, comprising an outer retaining wall (1), characterized in that: The inner wall of the outer protective wall (1) is slidably connected to the top of the inner protective wall (3), the top of the inner protective wall (3) is fixedly connected to the dustproof top ring (6), the outer wall of the dustproof top ring (6) is fixedly connected to the soil stabilizing top ring (7), and the inner wall of the dustproof top ring (6) is fitted with a dustproof cover (10).

2. The foundation pit support structure for municipal building construction according to claim 1, characterized in that: The bottom of the inner wall of the outer protective wall (1) is fixedly connected to a bottom ring (2), and the bottom surface of the bottom ring (2) and the bottom surface of the outer protective wall (1) are both set on the same horizontal plane.

3. The foundation pit support structure for municipal building construction according to claim 1, characterized in that: A slip ring (4) is fixedly connected to one end of the outer wall of the inner protective wall (3), and a sliding groove (5) is provided on the inner wall of the outer protective wall (1). The inner wall of the sliding groove (5) is slidably connected to the outer wall of the slip ring (4).

4. The foundation pit support structure for municipal building construction according to claim 2, characterized in that: The bottom ring (2) and the top ring (7) for soil stabilization have multiple sets of through holes running vertically through each other, and each through hole has a rod (8) fitted onto its inner wall. Each rod (8) has multiple sets of spiral grooves (9) on its outer wall.

5. The foundation pit support structure for municipal building construction according to claim 1, characterized in that: The dust cover (10) has a ventilation hole (11) that runs vertically through the top center, and a dustproof ventilation net (12) is fixedly connected to the top of the inner wall of the ventilation hole (11).

6. The foundation pit support structure for municipal building construction according to claim 1, characterized in that: Both ends of the dust cover (10) are provided with through round holes, and the inner walls of the round holes are fixedly connected to a dust collector (13). The air outlet at the top of the dust collector (13) is threadedly connected to a filter canister (14). Two sets of dust collectors (13) and filter canisters (14) are provided.

Images