Tunnel monitoring and early warning system and method based on vault sinking and surrounding convergence

Abstract

The invention provides a tunnel monitoring and early warning system and method based on crown settlement and peripheral convergence. The system comprises a first laser ranging device, a second laser ranging device and an early warning cloud platform; the first laser ranging device and the second laser ranging device are symmetrically arranged on the left and right sides of the tunnel monitoring section; the first laser ranging device emits infrared rays toward the crown A position of the current tunnel monitoring section, and also emits infrared rays to the second laser ranging device; the second laser ranging device emits infrared rays to the crown A position of the current tunnel monitoring section, and also emits infrared rays to the first laser ranging device; the installation angle remains unchanged. The system and method have the advantage that the numerical value of the crown settlement and the peripheral convergence of a tunnel can be measured simply, conveniently and accurately in real time according to the method, the reliability and the accuracy of the early warning system is further ensured, so that the system and method can be widely promoted.

Description

technical field [0001] The invention belongs to the technical field of tunnel monitoring and early warning, and in particular relates to a tunnel monitoring and early warning system and method based on vault sinking and peripheral convergence. Background technique [0002] Tunnel monitoring and measurement is one of the three major elements of the new Austrian method of construction. Through the monitoring and measurement results of tunnel construction, information construction is carried out, and the self-supporting effect of the surrounding rock is maximized, so that the tunnel construction is in a dynamic management system. Before the construction of the tunnel project, the surrounding rock mass was in a stable in-situ stress environment. The excavation of the tunnel destroyed the original in-situ stress balance of the rock mass. Due to the self-stabilization of the tunnel surrounding rock itself and the support of the supporting structure, the tunnel The surrounding rock...

AI Technical Summary

Problems solved by technology

Due to the traditional calculation method of vault sinking and surrounding convergence, the operation is cumbersome, and the calculation work must be followed up in real time during the tunnel construction process. In large-scale mechanical construction, the embedded parts in the concrete may be destroyed, resulting in errors in measurement data, which ultimately affects the reliability and accuracy of the monitoring and early warning system

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