A method for preventing tbm tunneling from being stuck in broken surrounding rock

Abstract

The invention discloses a method for preventing TBM excavation from being stuck in broken surrounding rock, which belongs to the technical field of tunnel engineering equipment, and is characterized in that it comprises the following steps: a hardness detection probe detects the hardness of surrounding rock and sends the detection signal to a control host to control the hardness of the surrounding rock. The main engine processes the detection signal; the control host performs signal processing, adjusts the TBM excavation tools, and adjusts the speed and spacing of the tools to achieve uniform crushing; the size is suitable; the crushing mechanism at the discharge port is hard and cannot be crushed. Surrounding rock fragments , cutting and crushing through the water jet crushing mechanism to avoid blockage and jamming. The present invention detects the hardness of the surrounding rock through the hardness detection probe and sends the detection signal to the control host. The control host performs signal processing to adjust the TBM excavation tool. The speed and spacing of the cutters are adjusted to make the cutters break the surrounding rock evenly and achieve the preventive effect.

Description

technical field [0001] The invention belongs to the technical field of tunnel engineering equipment, and in particular relates to a method for preventing TBM tunneling from being stuck in broken surrounding rock. Background technique [0002] TBM (Tunnel Boring Machine): [0003] 1. Broad meaning: (full section) tunnel boring machine (Tunnel tunnel, Boring tunneling). It is divided into open tunnel boring machine and shield tunnel boring machine. [0004] The construction procedures such as excavation, support, and slag discharge are operated in parallel and continuously. It is a factory-like assembly line tunnel construction equipment integrated with mechanical, electrical, hydraulic, optical, and gas systems. It has the advantages of fast excavation speed, environmental protection, and high comprehensive benefits. It can realize The construction of deep and long tunnels with complex geographical landforms, which is difficult to realize by traditional drilling and blastin...

AI Technical Summary

Problems solved by technology

[0007] The existing technology has the following problems: when the existing TBM is in use, the props are easy to be stuck during excavation and crushing, which affects the excavation speed and delays the progress of the project. The material is difficult, which affects the progress of the excavation and causes inconvenience in use

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