Seat gate cast-in-place pile construction device and construction method

Abstract

The invention relates to a seat gate cast-in-place pile construction device and method, and belongs to the technical field of cast-in-place pile construction devices. A seat gate cast-in-place pile construction device comprises a bottom plate, two lifting supporting arms symmetrically arranged on the bottom plate in the direction perpendicular to the bottom plate, a transmission mechanism arranged on the bottom plate, and a rotating protection cylinder with the two ends arranged on the lifting supporting arms in a sleeving mode. The two ends of the transmission mechanism are connected with the two lifting supporting arms correspondingly. The rotary protective cylinder comprises a supporting frame, a cylinder body and a driving motor; the two ends of the supporting frame sleeve the lifting supporting arms; the cylinder body is arranged on the supporting frame in a penetrating manner; the driving motor is arranged on the supporting frame; the cylinder body is rotationally connected with the supporting frame; the edge of the bottom end of the cylinder body is provided with saw-toothed bulges; and the outer wall of the cylinder body is meshed with a power output shaft of the driving motor. The pile casing has the advantages of being stable and firm in security, not prone to hole collapse, high in automation degree and the like.

Description

technical field [0001] The present application relates to the technical field of cast-in-place pile construction devices, and in particular, to a construction device and construction method of a seat gate cast-in-place pile. Background technique [0002] Cast-in-place piles are common building support structures. The construction process of the cast-in-place pile includes the process of installing the casing. As an important control basis for the elevation of the pile top, the guard tube plays a role in positioning the drilling of the pile. At the same time, the casing can protect the hole, maintain the mud water level, and avoid the phenomenon of sediment backflow during the drilling process. It can be said that the installation quality of the casing determines the overall construction quality of the cast-in-place pile to a certain extent. [0003] At present, there are two common ways to install the guard. One is to drive the shield directly into the ground through an e...

AI Technical Summary

Problems solved by technology

Since the construction site of the cast-in-situ pile for seat gate is the river bed, the soil quality is softer, so it is difficult to ensure the verticality of the casing after backfilling by this installation method

Subsequent drilling construction is prone to shrinkage holes, inclined holes, etc.

This will affect the pile quality of cast-in-situ piles

[0004] In view of the related technical background mentioned above, the inventor found that the existing casing installation method has the defects of low installation accuracy and affecting the quality of the pile when the seat gate grouting pile is constructed.

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