Construction method for revolving digging cast-in-place pile

Abstract

An embodiment of the invention discloses a construction method for a revolving digging cast-in-place pile. A case pile is used for holing and protecting a wall, a revolving digging machine is used for taking soil and holing from the inside of the case pile, soil excavated volume of the construction method is lower as compared with a traditional wall protecting method by the aid of mud, a peripheral soil structure cannot be damaged, influences to surrounding environments and pollution due to construction are low, the speed for removing slag in end holes is fast, quality is high, and the problem that the mud skin on a side of a mud wall protecting and holing technical pile reduces bearing capacity of the engineering pile is avoided effectively. The construction method effectively stops common quality drawbacks of other types of punched and bored cast-in-place piles, such as hole collapse, necking and the like. Operation is safe, pile forming speed is faster, cost is lower, and construction efficiency and construction quality are greatly improved.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a construction method for rotary-dug cast-in-place piles. Background technique [0002] Rotary excavation cast-in-situ pile refers to the pile type constructed by rotary drilling rig, and is referred to as rotary excavation pile in engineering. [0003] In recent years, with the emergence of rotary excavation piles, the pile foundation construction technology has been developed rapidly, and the pile-forming speed, quality and safety performance of engineering piles have been improved and guaranteed. However, at present, the traditional mud retaining method is still used to form piles of rotary excavation piles. Using this method to form piles of rotary excavation piles is prone to common quality problems such as collapse holes and necking. The mud retaining walls will cause secondary pollution to the environment and eventually The quality of hole cleaning is low and the time...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the embodiments of the present invention is to provide a construction method for rotary-dug cast-in-situ piles, which has fast pile formation speed, high quality, and little impact on the surrounding environment, effectively solves the secondary pollution caused by mud retaining walls to the environment, and finally Problems such as slow hole cleaning speed and mud skin affecting the bearing capacity of engineering piles

Images