A foundation pit support device and construction method using steel sheet piles

Abstract

The present invention relates to a foundation pit support device and construction method using steel sheet piles, including guide plates, sliding columns, lifting plates, positioning inserts, adjusting bolts and positioning mechanisms. The number of the guide plates is two, each The front and rear ends of each guide plate are provided with a counterbore, each counterbore is provided with a positioning post, the inner side of each guide plate is distributed with a sliding post, and the top of the sliding post is provided with a square groove, The lower end of the lifting plate is located in the square groove, and the inner side surface of the middle part of the lifting plate is connected with the middle part of the adjusting bolt by thread fit, and a positioning mechanism is installed on the inner end of the adjusting bolt. The present invention can solve the problems existing when the existing steel piles are inserted: the limit plates used for the steel piles can only limit the positions on both sides of the steel piles, and the verticality of the steel piles needs to be corrected manually. In the upright position, when the pile driver hammers the steel pile, the steel pile will tilt, which will cause the overall deflection of the structure formed by the steel pile.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a foundation pit supporting device and construction method using steel sheet piles. Background technique [0002] Foundation pit support is to ensure the safety of the underground structure construction and the surrounding environment of the foundation pit. The support, reinforcement and protection measures are adopted for the side wall of the foundation pit and the surrounding environment; the common forms of foundation pit support mainly include: 1. Row of piles Steel pile support, pile support, pile anchor, row pile cantilever; 2. Underground diaphragm wall support, ground connection wall + support; 3. Cement retaining wall; 4. Soil nail wall, etc. [0003] When the foundation pit is deep, the groundwater level is high and there is no precipitation during construction, steel piles are often used as the supporting structure. The steel pile supporting structure can not only ...

AI Technical Summary

Problems solved by technology

[0004] 1. The limit plate used for steel piles can only limit the position on both sides. The verticality of steel piles needs to be corrected manually. There will be problems when the pile driver hammers the steel piles. Steel piles are tilted, resulting in the overall deflection of the structure formed by steel piles, resulting in poor support effect of steel piles;

[0005] 2. When two adjacent steel piles are plugged in, it is necessary to manually align the plugging positions of the steel piles. There will be certain safety hazards when manual auxiliary operations are performed, and the steel piles will be caused by docking errors. There is stress between the two steel piles, which causes problems such as deformation of the insertion position of the steel piles

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