Tunnel Support Parameters Optimization Based on Micro-Seismic Monitoring
The monitoring is important to keep tunnel engineering construction stability.But, regular monitoring means cannot detect the position of the rock which has much stress accurately, accordingly, cannot monitor the influence of the construction process.In order to detect the local surrounding rock cracking due to excavation, a new method named micro-seismic monitoring is proposed to identify the elastic wave of rock bursting.Micro-seismic monitoring technology can find the bursting position by use the elastic wave of the rock, then, it can make an evaluation about the stability of the rock.In the method, using several sensors monitoring data of elastic wave identifies the bursting location.Then, the stability of the rock is analyzed and tunnel support parameters are optimized.At last, the method is used to monitor the Yuanyanghui tunnel located in Shanxi Province, China.The monitoring results identified the relatively stable and relatively unstable area.In-situ measurements on the surrounding rock have been used in the two areas, and therefore we use the analysis results to improve the initial tunnel support parameters.
Micro-seismic monitoring Safety monitoring Crow subsidence Support parameter
Danguang Pan Yingxiao Xiong Jian Li
School of Civil and Environment Engineering,University of Science and Technology Beijing,Beijing 100083,China
国际会议
上海
英文
1495-1499
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）