Method for monitoring settlement of subway tunnel through optical fiber hydrostatic level

Abstract

The invention provides a method for monitoring settlement of a subway tunnel through an optical fiber hydrostatic level, and relates to the technical field of settlement monitoring of subway tunnels.The method comprises a sensor fixing plate, a shell is fixed to the top of the sensor fixing plate, a circular ring block is fixed to the position, close to the edge of the top, in the shell through hexagon socket head cap screws, and a temperature compensation grating is fixed into the circular ring block. The invention discloses a method for monitoring settlement of a subway tunnel through an optical fiber hydrostatic level. The optical fiber static leveling instrument has the characteristics of a common static leveling instrument and the fiber bragg grating and the steel sheet connecting body are combined to form the clamping device, so that the static leveling instrument can be used stably for a long time, the use time can reach more than five years, and meanwhile, in use, the opticalfiber static leveling instrument is used for monitoring the settlement of the subway tunnel, so that the use space of settlement monitoring of the subway tunnel can be effectively enlarged, and the economy and the applicability are improved.

Description

technical field [0001] The invention relates to the technical field of settlement monitoring of subway tunnels, in particular to a method for monitoring the settlement of subway tunnels by optical fiber static leveling. Background technique [0002] Subway tunnel settlement monitoring is an important branch of underground space health monitoring, and it is also a subject of extensive and in-depth research by domestic and foreign experts in recent years. The subway tunnel is located underground, the structure is highly complex, the monitoring is difficult, and the monitoring project is large. The traditional monitoring methods are difficult to meet the safety monitoring of the subway tunnel. Therefore, it is imperative to develop an effective new monitoring method. Many domestic and foreign experts are also working on an effective monitoring solution to ensure the normal operation of the subway tunnel and guide the construction along the subway tunnel. [0003] At present, t...

AI Technical Summary

Problems solved by technology

However, most of them are in the experimental stage. Considering the economy and applicability, they have not been widely used. During the normal operation of the existing subway lines, the traditional monitoring technology cannot be implemented in the high-density traffic section, and cannot meet the needs of a large amount of data. Requirements for collection, analysis and timely and accurate feedback

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