Method for exchanging tool of shield machine for tunnel construction

Abstract

The invention discloses a method for exchanging a tool of a shield machine for tunnel construction, which comprises the steps of: (1) soil cabin replacement filling: performing the process of soil cabin replacement filling by using a spiral excavating machine and a slip casting system synchronously working with the spiral excavating machine; (2) advanced slip casting inside the machine: beating a plurality of slip casting pipes into the soil on the upper part of the shield machine from inner to outer inside the shield machine by respectively passing through a plurality of advanced geologic holes and then synchronously injecting cement paste into the soil on the upper part of the shield machine through the slip casting pipes by using a slip casting device till the cement paste cannot be injected any more; (3) cleaning cabin and exchanging tool synchronously: manually cleaning the cement plaster solidified inside the soil cabin and synchronously exchanging the tool mounted on the shield machine; and (4) getting rid of the difficult position of the shield machine and recovering the process. The method provided by the invention has the advantages of reasonable design, convenience for operation, low cost, high safety factor, good use effect and capable of solving the problem that the tool cannot be exchanged in the traditional tool exchanging mode under severe tool exchanging conditions.

Description

technical field [0001] The invention belongs to the technical field of tunnel shield construction, and in particular relates to a tool-changing construction method of a shield machine for tunnel construction. Background technique [0002] The shield method is a fully mechanized construction method for modern tunnel construction. The main mechanical equipment used is the shield machine, which is divided into two types: earth pressure balance shield and mud-water balance shield. Among them, the earth pressure balance shield is used more. During the tunneling process, the shield machine uses the cutter to cut the soil and break the rock, and the shield machine needs to replace the cutter after long-distance excavation (especially in the hard rock stratum or soft and hard uneven stratum), but if the shield machine stops at the position Under the conditions of relatively loose stratum, poor self-stabilization ability of the soil on the face of the tunnel, and structures directly...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a shield machine tool change construction method for tunnel construction, which is reasonable in design, easy to operate, low in investment cost, high in safety factor and good in use effect, aiming at the deficiencies in the above-mentioned prior art. It can effectively solve the situation where the ground is relatively loose at the stop position of the shield machine, the self-stabilization ability of the soil on the tunnel face is poor, and there are structures directly above the cutter head, etc. The tool change conditions are relatively harsh, and the existing common tool change methods cannot be used for tool change practical problems

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