Construction method of hard secant pile wall of foundation pit

Abstract

The invention discloses a construction method of hard secant pile walls of a foundation pit. A construction site is cleaned, wherein obstacles and impurities of the site within the secant pile wall range are firstly removed, and a construction road and a practical site are leveled. The invention relates to the technical field of building construction. According to the construction method of the hard secant pile walls of the foundation pit, when a first concrete pile foundation point and a second concrete pile foundation point are cast, bonded portions are separated in advance through partitionplates, the bonded positions are filled with waste soil dug out during hole digging on the to-be-bonded portions, a pile machine is used for tampering, casting strength is kept, and meanwhile waste of concrete materials is reduced. The problems that when reinforced concrete piles are cast, casting needs to be carried out after concrete at the bonded positions of concrete piles is cut away, wasteof a large amount of concrete is caused, concrete is always hard to cut, cast concrete piles are quite prone to being damaged during cutting, consequently, sealing of the bonded portions is not firm,and gaps happen are solved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method for a rigid occlusal pile in a foundation pit. Background technique [0002] The occlusal pile is partially embedded in the circumference of the adjacent concrete row piles, and a steel cage is placed in the piles that are constructed alternately in the subsequent order, so that it forms an overall continuous waterproof and soil-retaining enclosure structure with good anti-seepage effect. Pile is a kind of foundation pit enclosure structure in which the piles are interlocked and arranged. The piles are arranged in the form of an unreinforced ultra-retarded concrete pile and a reinforced concrete pile (constructed by a full casing drilling rig). Arrangement, during construction, construct ultra-retarded element concrete piles first, and then construct reinforced concrete piles. The construction of reinforced concrete piles is completed before th...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the present invention provides a construction method for rigid occlusal piles in foundation pits, which solves the problem that when pouring reinforced concrete piles, the concrete at the occlusal position of the concrete piles needs to be cut off before pouring, resulting in a large amount of concrete. waste

Moreover, concrete is often difficult to cut, and it is easy to cause damage to the concrete pile during cutting, resulting in weak sealing of the occlusal part and gap problems

Images