机械法联络通道施工自动导向及监测技术

Automatic Guiding and Monitoring Technique for Construction of Mechanical Connecting Channel

摘要:

机械法施工作为当今联络通道施工的发展方向，一方面因测量通道空间狭小和测站不规则位移等原因，其施工导向测量手段仍然停留在人工测量阶段，降低了机械法的施工效率；另一方面为掘进面附近受力管片的位移监测也多为人工方法，难以满足监测时效性的需求。为了同步解决机械法联络通道施工导向测量和监测的问题，开发了一套机械法联络通道自动导向系统。该系统基于高精度光纤陀螺的指北原理，采用光纤陀螺与双轴倾斜仪和目标棱镜组合构成导向靶，通过巧妙布设的基准棱镜和监测棱镜，在自动导向的同时也能够实现管片位移监测。

Abstract:

Mechanical construction is the development direction of connecting channel construction at present. Due to the narrow space of measuring channel and irregular displacement of observation station, the construction guiding measurement means is still in manual measurement stage, which reduces mechanical construction efficiency. The displacement monitoring of the segments near the tunneling face is also mostly in manual, It is difficult to meet the demands of monitoring timeliness. In order to solve the problems of guiding measurement and monitoring of mechanical connecting channel construction at the same time, a set of automatic guiding system of mechanical connecting channel is developed. Based on the north-pointing principle of high-precision fiber optic gyroscope, the guiding target of this system is composed of fiber-optic gyroscope, dual-axis inclinometer and target prism. By the clever layout of reference prism and monitoring prism, the displacement monitoring of segments can be realized at the same time of automatic guidance.