向莆铁路雪峰山出口隧道监控量测总结（A summary of the monitoring measurement of the tunnel of xuefeng mountain in the mountainous area）.doc

向莆铁路雪峰山出口隧道监控量测总结（A summary of the monitoring measurement of the tunnel of xuefeng mountain in the mountainous area） A summary of the monitoring measurement of the tunnel of xuefeng mountain in the mountainous area Zheng liubin zhang shuping zhu bin (China railway tunnel share new construction of the railway FJ - 2) Pick to: currently, the design idea of railway tunnel is: safety, environmental protection, as little damage as possible the original landform, tunnel generally follow the early in night out, so the import and export of the tunnel buried depth is shallow. In order to ensure the safety of the project, the quality is reliable and the monitoring measurement is an important work in the construction. This article elaborated the new two of achieving high speed railway to xuefeng mountain tunnel monitoring measurement for measuring method, to master the dynamic of the surrounding rock and supporting working status, comprehensive analysis of monitoring, so as to adjust the tunnel support scheme, guarantee the stability of surrounding rock and construction safety. Keywords: monitoring measurement, arch settlement, horizontal convergence, surface subsidence, total station, level, and ruler 1 project overview The snow peak mountain tunnel is located in northwest fujian province, through the peak of xufeng mountain. The import is located on the outskirts of the town of zhuo county, which is located in the village of shigang, shaoxian county. The tunnel adopts double hole single line, the inlet length of the left line tunnel is DK300 + 850, the inlet mileage of the right channel tunnel is YDK300 + 850, the exit mileage of the left line tunnel is DK318 + 692, and the exit mileage of the right channel is YDK318 + 676. The left line tunnel is 17,842 meters long and the right line tunnel is 17826 meters long. The tunnel is 948 meters deep. The longitudinal slope of the tunnel is a character slope, with a maximum of 6 ‰. Exporter of xuefeng mountain tunnel surface for the