CN-117306543-B - Foundation pit structure and construction method thereof

CN117306543BCN 117306543 BCN117306543 BCN 117306543BCN-117306543-B

Abstract

The application relates to a foundation pit structure and a construction method thereof, wherein the foundation pit structure comprises a foundation pit main body provided with a supporting structure, the supporting structure comprises a reinforcing component and a drainage component, the drainage component is arranged on the reinforcing component, the drainage component comprises an anti-falling net and a drainage pipe, the drainage pipe is arranged in the reinforcing component, one side of the anti-falling net is connected with the reinforcing component, a plurality of water storage channels are arranged in the anti-falling net, the bottom of the anti-falling net is contacted with the bottom of the foundation pit main body, a fixing piece with water absorption property is arranged at the bottom of the anti-falling net, the fixing piece is driven into the pit bottom of the foundation pit main body, the reinforcing component comprises a corner reinforcing component and a vertical reinforcing component, the corner reinforcing component is fixed at a corner of the foundation pit main body and is attached to a corner wall of the foundation pit main body, and the vertical reinforcing component is connected with the corner reinforcing component. The foundation pit disclosed by the application is firm in structure, is not easy to generate side collapse and is convenient for drainage.

Inventors

HU JINSHU
PAN JUN
Lv shengyue
GUO BANGHUI
YE HUAXIANG
WANG GUOQING
Sheng Guowen
Lv Xujin
JI ZHENG
LI MINGPO
YE JIANFEI
PENG ZHIPING

Assignees

浙江省浙南综合工程勘察测绘院有限公司

Dates

Publication Date: 20260505
Application Date: 20230926

Claims (7)

1. The foundation pit structure comprises a foundation pit main body (1) provided with a supporting structure, and is characterized in that the supporting structure comprises a reinforcing component (2) and a drainage component (3), the drainage component (3) is arranged on the reinforcing component (2), the drainage component (3) comprises a falling prevention net (301) and a drainage pipe (302), the drainage pipe (302) is arranged in the reinforcing component (2), one side of the falling prevention net (301) is connected with the reinforcing component (2), a plurality of water storage channels (3011) are arranged in the falling prevention net (301), the bottom of the falling prevention net (301) is in contact with the bottom of the foundation pit main body (1), a fixing piece (4) with water absorption is arranged at the bottom of the falling prevention net (301), and the fixing piece (4) is driven into the pit bottom of the foundation pit main body (1); the fixing piece (4) comprises a fixing part (401) and a water absorbing part (402), one end of the fixing part (401) is connected with the anti-falling net (301), the water absorbing part (402) is arranged in the fixing part (401), a conical surface is formed at the bottom of the fixing part (401), a connecting channel (7) is arranged in the fixing part (401), the water absorbing part (402) is fixed in the connecting channel (7) and penetrates through the fixing part (401), a water absorbing channel (3014) which is not communicated with the water storage channel (3011) is arranged in the anti-falling net (301), one end of portion (402) absorbs water inserts in water channel (3014), portion (402) absorbs water including strip (4021) and heat conduction spare (4022) absorb water, interior passageway (6) are seted up to strip (4021) that absorbs water, heat conduction spare (4022) include electric heating wire (40221), insulating sheath (40222) and conducting strip (40223), and insulating sheath (40222) are fixed on strip (4021) that absorbs water, and conducting strip (40223) are fixed on insulating sheath (40222), and electric heating wire (40221) are inserted in interior passageway (6) from the outside, and the heat that electric heating wire (40221) produced is used for heating conducting strip (40223).
2. The foundation pit structure according to claim 1, wherein the reinforcement assembly (2) comprises a corner reinforcement member (201) and a vertical reinforcement member (202), the corner reinforcement member (201) is fixed at a corner of the foundation pit body (1) and is attached to a corner wall of the foundation pit body (1), and the vertical reinforcement member (202) is connected with the corner reinforcement member (201).
3. The foundation pit structure according to claim 2, wherein the vertical reinforcement member (202) is located at one side of the corner reinforcement member (201), the vertical reinforcement member (202) comprises a support plate (2021) fixed to the pit bottom of the foundation pit body (1) and a support block (2022), the support block (2022) is mounted at one side of the support plate (2021) by screw engagement and is connected with the side wall of the foundation pit, a mounting passage (5) is provided in the support plate (2021), and the drain pipe (302) is arranged in the mounting passage (5).
4. The foundation pit structure according to claim 2, wherein the corner reinforcing member (201) comprises a corner reinforcing plate (2011) fixed at the pit bottom of the foundation pit body (1) and a climbing rod (2012) for climbing, the climbing rod (2012) is fixed on the corner reinforcing plate (2011), the corner reinforcing plate (2011) is fixedly attached to the corner wall of the foundation pit body (1), an opening (3012) is formed in the anti-falling net (301), and the opening (3012) is aligned with the corner reinforcing member (201).
5. The foundation pit structure according to claim 1, wherein the drain pipe (302) comprises a water storage cavity (3021) and a drain channel (3022) from outside to inside, both ends of the drain channel (3022) are communicated with the external environment, and the top of the water storage cavity (3021) is communicated with the external environment.
6. The foundation pit structure according to claim 1, wherein the anti-falling net (301) is made of an anti-aging colloid material, water inlet holes (3013) used for being communicated with the water storage channel (3011) are formed in the anti-falling net (301), and the anti-falling net (301) shields the reinforcing component (2) and extends to the outside of the foundation pit main body (1) to be fixed on the ground.
7. The construction method of the foundation pit structure is characterized by comprising the following steps of: S1, firstly excavating a foundation pit main body (1), and then installing a support assembly in the foundation pit main body (1); s2, installing a corner reinforcing part (201) of the support assembly at a corner position of the foundation pit main body (1), and after the corner reinforcing plate (2011) of the corner reinforcing part (201) is arranged at the corner position, driving a fixing piece (4) into the corner reinforcing plate (2011), wherein the fixing piece (4) is inserted into a pit wall of the foundation pit main body (1); s3, installing the vertical reinforcing component (202) at the pit bottom of the foundation pit main body (1); S4, installing an anti-falling net (301), rotating the supporting block (2022) after the anti-falling net (301) is connected with the supporting block (2022), inserting the supporting block (2022) into the pit wall, and installing a fixing part (401) at the bottom of the anti-falling net (301) into the pit bottom of the foundation pit main body (1) for fixing.

Description

Foundation pit structure and construction method thereof Technical Field The application relates to the field of foundation pit technology, in particular to a foundation pit structure and a construction method thereof. Background The foundation pit is a soil pit excavated at a foundation design position according to the elevation of the substrate and the plane size of the foundation. Before excavation, the excavation scheme is determined according to geological hydrologic data and the conditions of buildings nearby the site, and waterproof and drainage works are performed. The method of releasing the slope can be used by the person with non-deep excavation to stabilize the soil slope, and the gradient of the soil slope is determined according to relevant construction regulations. The method can be used for protecting foundation pit wall, spraying concrete, protecting large foundation pit, and protecting soil layer from collapse, so that it can be used for protecting underground water level, adopting slope-raising open excavation and natural cold air freezing method in cold area. Currently, in the related art, a supporting foundation pit is often required to be formed aiming at the following three situations: 1. The soil quality of the foundation pit wall is unstable and has the influence of underground water. 2. The engineering quantity of the slope-releasing earthwork excavation is too large, and the method is uneconomical. 3. Is easily limited by construction sites or adjacent buildings, and can not adopt slope excavation. However, the influence of external rainwater and groundwater on the foundation pit is large, water storage is often generated in the foundation pit, the existence of the water can cause adverse effect on construction in the foundation pit and even collapse of the foundation pit, and at present, the supporting structure in the related art can not remove the water in the foundation pit. With respect to the above related art, the inventor considers that the supporting structure in the foundation pit cannot effectively cope with the disadvantage of water in the foundation pit. Disclosure of Invention The application provides a foundation pit structure and a construction method thereof in order to support the inside of the foundation pit and drain water possibly existing in the foundation pit. The application provides a foundation pit structure and a construction method thereof, which adopts the following technical scheme: The utility model provides a foundation ditch structure, is including installing supporting construction's foundation ditch main part, supporting construction includes reinforcement subassembly and drainage subassembly, and drainage subassembly sets up on reinforcement subassembly, and drainage subassembly is including preventing weighing down net and drain pipe, and the drain pipe is installed in reinforcement subassembly, and reinforcement subassembly is connected to one side of preventing weighing down the net, and the inside of preventing weighing down the net sets up a plurality of retaining channels, and the bottom of preventing weighing down the net contacts with the bottom of foundation ditch main part, and the bottom of preventing weighing down the net is provided with the mounting that has hydroscopicity, and the mounting is beaten into to in the hole bottom of foundation ditch main part. By adopting the technical scheme, the foundation pit is internally provided with the reinforcing component and the drainage component, the reinforcing component is used for reinforcing the pit wall and the like of the foundation pit, the drainage component is used for draining water in the foundation pit, the anti-falling net on the drainage component mainly has the effect of adding an anti-falling protection for workers, in addition, the anti-falling net is internally provided with the water storage channel, external water can be accumulated in the water storage channel, and the weight of the anti-falling net can be increased after the water is stored in the anti-falling net, so that the anti-falling net firmly presses the side wall of the foundation pit, and the side wall of the foundation pit is further reinforced. Preferably, the reinforcement assembly comprises a corner reinforcement part and a vertical reinforcement part, wherein the corner reinforcement part is fixed at a corner of the foundation pit main body and is attached to a corner wall of the foundation pit main body, and the vertical reinforcement part is connected with the corner reinforcement part. Through the adoption of the technical scheme, the corner reinforcing component on the reinforcing component is arranged at the corner of the foundation pit main body and is fixedly attached to the corner of the foundation pit main body and used for reinforcing and protecting the corner of the foundation pit, and the vertical reinforcing component is used for achieving a vertical reinforcing effect. Preferably, the ver