Method for adjusting joint of hydraulic tunnel TBM (tunnel boring machine) construction profile steel arch

Abstract

The invention discloses a hydraulic tunnel TBM construction profile steel arch joint adjusting method. An existing steel arch frame is long in installation time, physical output of workers is large, and the requirement for bolt hole site precision is high. The open design is adopted for each truss of profile steel arch frame, an equipment arch frame installer is combined with an oil cylinder, the assembled profile steel arch frames are tightly supported on the rock surface, and then the opening positions of the arch frames are fastened and locked through bolts; the channel steel middle hole is used for fixing the open-type steel arch, and the channel steel side holes and the section steel arch adjusting holes are all in sliding groove design, so that the section steel arch is convenient to stretch and adjust. The section steel arch frame can be quickly folded into a ring and tightly attached to the surrounding rock, the construction efficiency is improved, time and labor are saved, a primary support quickly plays a role in rigidity, deformation of a surrounding rock body is limited to a certain degree, the self-stabilizing capacity of the surrounding rock is enhanced, and construction safety is guaranteed.

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