Dewatering enclosure structure of steel pipe larssen sheet piles

Abstract

This invention discloses a dewatering enclosure structure of steel pipe larssen sheet piles. The dewatering enclosure structure of the steel pipe larssen sheet piles includes a plurality of steel pipelarssen sheet piles, wherein the multiple steel pipe larssen sheet piles are arranged around the side wall of a foundation pit to form a closed enclosure body; each steel pipe larssen sheet pile is composed of steel pipe and a larssen sheet pile, wherein the larssen sheet pile is divided into two parts and welded to the two radial sides of the steel pipe; the larssen sheet piles on two adjacent steel pipe larssen sheet piles are connected with each other in a snapping mode; anchoring section steel penetrating into the underground is arranged on the outer side of the enclosure body; a sectionsteel purlin attached to the steel pipe larssen sheet piles is arranged, on the inner side of the closed enclosure body; and the section steel purlin is tightly connected with the anchoring section steel through an anchor cable. The dewatering enclosure structure of the steel pipe larssen sheet piles not only guarantees the integral closure of the enclosure body of the foundation pit, but also effectively reduces the groundwater level in the foundation pit; and when the enclosure body is defective, the harm to the interior of the foundation pit cannot be caused due to the continuous control over the groundwater level.

Description

technical field [0001] The application relates to the field of foundation pit construction, in particular to a steel pipe Larsen sheet pile precipitation enclosure structure. Background technique [0002] After the deep foundation pit is closed and protected, a dewatering well will be set in the foundation pit to drain the groundwater in the excavated soil to ensure the normal construction of the earthwork excavation and the structure in the foundation pit. However, during the earthwork excavation and structure construction, the dewatering well in the pit It will affect the normal progress of earthwork excavation and structural construction; if the dewatering well is removed, the groundwater in the foundation pit will slowly rise. If there is a defect in the foundation pit enclosure at this time, the groundwater outside the foundation pit will pour into the foundation pit, causing difficulties for earthwork excavation , construction delays, and even serious safety hazards to...

AI Technical Summary

Problems solved by technology

[0002] After the deep foundation pit is closed and protected, a dewatering well will be set in the foundation pit to drain the groundwater in the excavated soil to ensure the normal construction of the earthwork excavation and the structure in the foundation pit. However, during the earthwork excavation and structure construction, the dewatering well in the pit It will affect the normal progress of earthwork excavation and structural construction; if the dewatering well is removed, the groundwater in the foundation pit will slowly rise. If there is a defect in the foundation pit enclosure at this time, the groundwater outside the foundation pit will pour into the foundation pit, causing difficulties for earthwork excavation , construction delays, and even serious safety hazards to foundation pit enclosure

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