Analysis of nonlinear dynamic character in the surrounding rock system for deep buried underground engineering

作     者：ZHAO Yu PENG Hal-you 

作者机构：College of Civil Engineering Chongqing University Chongqing 400045 China Education Ministry＇s Key Lab for the Exploitation of Southwestern Resources ＆ Environmental Disaster Control Engineering Cbongqing University Chongqing 400044 China 

出 版 物：《Journal of Coal Science & Engineering(China)》 (煤炭学报（英文版）)

年 卷 期：2010年第16卷第4期

页      面：362-366页

学科分类：081401[工学-岩土工程] 082304[工学-载运工具运用工程] 08[工学] 080204[工学-车辆工程] 0802[工学-机械工程] 0814[工学-土木工程] 0823[工学-交通运输工程] 

基　　金：Supported by the New Century Excellent Talent Foundation from MOE of China(NCET-09-0844) the National Natural Science Foundation of China(50804060,50621403) 

主　　题：nonlinear dynamics rock deep-buried underground engineering 

摘      要：Combining the field monitoring results of a deep-buried tunnel in Chongqing,the dynamic characteristics of the surrounding rock system under high in situ stress wasanalyzed by phase space reconstruction, calculating correlation dimension, Kolmogoroventropy and largest Lyapunov *** the Kolmogorov entropy and largestLyapunov exponents show that the surrounding rock system is a chaotic *** onthis, a local model was applied to predict surrounding rock displacement, and a nonlineardynamic model was derived to forecast the interaction of the surrounding rock and *** local method was found to have an extremely small total ***, thenonlinear dynamic model forecasting curves agree with the monitoring ones very *** isproved that the nonlinear dynamic characteristic study is very important in analyzing rockstability and predicting the evolution of rock systems.