Intelligent Back Analysis of Displacements Using Precedent Type Analysis For Tunneling
会议名称：《中国科学院地质与地球物理研究所2002学术年会》
会议日期：2002年
学科分类：081406[工学-桥梁与隧道工程] 08[工学] 0814[工学-土木工程] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程]
关 键 词：Tunnel Precedent type analysis Intelligent back analysis of displacements
摘 要：Based on comprehensive monitored data obtained from typical tunnel projects,and by using engineering experiences of experts together with numerical modeling results,the Precedent Type Analysis(PTA) technique developed was for back-analyzing in situ stress and elastic modulus of rock masses surrounding ***,the PTA is used as a supporting technique in the method of Intelligent Back Analysis(IBA).The IBA method can integrate the mechanism analysis with experimental *** integration is based on ’certainty factors’,and is implemented with the computer program BMP90 with a global inference *** program BMP90 can solve a series of back analysis problems - such as identifying potential problems to be encountered during back analysis,assessing the strategy to be adopted,selecting criteria for back analysis,and ensuring convergence of back analysis *** on the engineering applications to about 100 tunnel projects in China,it is found that the IBA method supported by the PTA technique can be successfully applied to tunnel projects,*** analyzing the lateral in situ stress factor(λ),and the elastic modulus(E) of rock *** method of Intelligent Back Analysis(IBA) supported by Precedent Type Analysis(PTA) and its application to a tunnel project are presented in this paper.