摘要
在隧道施工过程中,根据现场围岩变形的监测结果,可以及时分析与预测围岩稳定性。结合小金口连拱隧道监测数据,利用数值分析方法对Ⅲ类围岩水平位移监测数据进行处理与分析,计算得出:采用Boltzman函数拟合分析方法,能够较好反映连拱隧道施工过程中水平收敛位移的变化情况,从而得到连拱隧道水平位移的控制标准,对双连拱公路隧道设计和施工具有重要的指导意义。
According to the monitored and measured result of surrounding rock deformation, it is possible to analyze and predict the stability of surrounding rock in the construction of the tunnel. Horizontal displacement is calculated and analyzed in surrounding rock type m by monitored and measured data of XiaoJinKou double-arch tunnel in the paper. Regression analysis by Bohzman function can reflect the change of horizontal displacement in double-arch tunnel construction. So the horizontal displacement control base of double-arch tunnel has been suggested. It has an important significance for designing and constructing in double-arch tunnel.
出处
《测绘科学》
CSCD
北大核心
2009年第1期212-213,216,共3页
Science of Surveying and Mapping
关键词
连拱隧道
水平位移
围岩变形
控制标准
double-arch tunnel
horizontal displacement
surrounding rock deformation
control base
