%0 Journal Article
%T STUDY ON EFFECT OF IN-SITU STRESSES ON PLASTIC REGION INDUCED BY EXCAVATIONS OF UNDERGROUND OPENINGS<br>地应力对地下洞室开挖的塑性区影响研究
%A Zhu Yiwen
%A Huang Kejian
%A Li Wei
%A <br>朱以文
%A 黄克戬
%A 李伟
%J 岩石力学与工程学报
%D 2004
%I 
%X Three-dimensional non-linear analyses are performed for the underground openings of Baoquan pumped-storage power station in Henan province. The influene of the horizontal in-situ stresses on the distributions of plastic zones is discussed. The Drucker-Prager model is used as yielding criterion. A relation among lateral pressure coefficient, material properties and distribution of plastic zone is also derived theoretically. The region for the yielding most likely to take place is found, and the distributions of plastic zones in terms of the lateral pressure coefficient are obtained. The theoretical study is then confirmed by three-dimensional non-linear analyses.
%K rock mechanics
%K in-situ stresses
%K coefficient of lateral pressure
%K underground openings
%K plastic region<br>地下洞室
%K 开挖
%K 塑性区
%K 地应力
%K 三维非线性分析
%K 抽水蓄能电站
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=4D3FD102473A7EAF&yid=D0E58B75BFD8E51C&vid=EA389574707BDED3&iid=5D311CA918CA9A03&sid=D8AEABAD4F3221BE&eid=A9974A3EA5885863&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=8&reference_num=26