Front shield tunneling attitude control system

Abstract

The invention relates to the technical field of shield construction, in particular to a front-mounted shield tunneling attitude control system which comprises an inert slurry storage tank, a grouting pipeline is communicated with the bottom of the inert slurry storage tank, a grouting pump is arranged on the grouting pipeline, the other end of the grouting pipeline is connected with a branch pipe, and the branch pipe is connected with the inert slurry storage tank. The end, located on the edge of the shield soil bin partition plate, of the branch pipe is connected with slurry outlet pipes, the slurry outlet pipes are located at the left end, the right end and the bottom end of the shield soil bin partition plate respectively, valves are arranged on the slurry outlet pipes, the slurry outlet pipes penetrate through the shield soil bin partition plate and extend out of the shield shell, and slurry outlet holes of the slurry outlet pipes face the soil body. According to the invention, the front shield can be lifted in a soft stratum, so that the shield is kept in a head-up tunneling posture; and when the shield is insufficient in steering or poor in deviation correction, acting force is applied to one side of the front shield, the shield can be effectively steered, the shield attitude control efficiency is improved, and the quality problems that the deviation between a shield-formed tunnel and a designed line is too large and the like are solved.

Description

technical field [0001] The invention relates to the technical field of shield tunneling, in particular to a front-mounted shield tunneling attitude control system. Background technique [0002] During the construction process of the shield machine, it is necessary to continuously adjust the excavation posture to make the shape of the formed tunnel meet the design requirements. However, in the actual construction and production, due to the weak ground, insufficient shield design thrust, mechanical equipment failure, and too small tunnel design transformation radius, etc., the shield tunnel deflects from the design and cannot Meet the design requirements. [0003] Therefore, it is very necessary to provide a shield tunneling posture control system so that the shield can effectively control the shield tunneling posture under various working conditions, use the tunnel line shape to meet the design requirements, and improve the construction quality. Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies in the above-mentioned prior art, the present invention provides a set that can raise the front shield in weak formations, so that the shield can keep the posture of digging with its head up; The force is applied to one side of the shield, and the use of the shield can effectively turn, improve the efficiency of the attitude control of the shield, and prevent quality problems such as excessive deviation between the shield tunnel and the design line

Images