%0 Journal Article
%T APPLICATION OF OPTIMIZING METHODS IN CALCULATING PERSISTENCE RATIO AND COMPREHENSIVE SHEAR STRENGTH OF JOINTED ROCK MASS<br>寻优方法在岩体结构面连通特性和综合抗剪强度研究中的应用
%A Du Jingcan
%A Chen Zuyu
%A Wang Xiaogang
%A <br>杜景灿
%A 陈祖煜
%A 汪小刚
%J 岩石力学与工程学报
%D 2003
%I 
%X The approaches of determining the joint persistence ratio of rock mass by dynamic programming and genetic algorithm methods are described based on a simple test example. In a simulated joint map,both methods are able to find the combinations of joint and rock bridge associated with the least comprehensive shear force. It is found that the two methods gave virtually the same results. The influence of two different shearing terminal conditions is investigated on the calculation results. The joint persistence ratio obtained by fixing both ends of shear path is smaller than that without fixed ends,and the comprehensive shear strength with both fixed ends of shear path is larger than that without fixed ends.
%K rack mass
%K optimization
%K genetic algorithm
%K dynamic programming
%K discontinuity persistence ratio
%K shearing test
%K test simulation<br>岩体结构
%K 遗传算法
%K 动态规划
%K 结构面连通率
%K 剪切试验
%K 试验模拟
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=48FC0CE4B9CE0B25&yid=D43C4A19B2EE3C0A&vid=BC12EA701C895178&iid=9CF7A0430CBB2DFD&sid=9BBC04B2CAF22446&eid=6EAE3EAEEC5D0463&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=5&reference_num=13