%0 Journal Article
%T MODEL TESTING RESEARCH ON INFLUENCE OF KARST CAVE SIZE ON STABILITY OF SURROUNDING ROCKMASSES DURING TUNNEL CONSTRUCTION<br>岩溶尺寸对隧道围岩稳定性影响的模型试验研究
%A Zhao Mingjie
%A Ao Jianhua
%A Liu Xuhua
%A Wang Biao
%A <br>赵明阶
%A 敖建华 刘绪华 王 彪
%J 岩石力学与工程学报
%D 2004
%I 
%X Based on the comprehensive testing system for structure and surrounding rockmasses of highway tunnel (CTSSSRH),taking Chaodongyan Tunnel as an example,a test concerning the influence of karst cave size on stability of surrounding rockmasses during tunnel construction is carried out through physical and numerical modeling. The ANSYS software is used for 3D elastic-plastic FE analysis,and the yield initiation is assumed to occur following Druck-Prager failure criterion. The results of physical model testing and numerical analysis show that the deformation of surrounding rockmasses of tunnel varies with increase of the karst cave size. The excavation of tunnel with karst caves will amplify the deformation of the surrounding rockmasses of tunnel without karst caves.
%K tunneling engineering
%K karst caves
%K surrounding rockmasses of tunnel
%K model testing
%K numerical analysis<br>隧道围岩
%K 稳定性
%K 岩溶
%K 公路隧道
%K 石灰岩
%K 弹塑性
%K 模型试验
%K 数值分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=9EA7663A227DEC6D&yid=D0E58B75BFD8E51C&vid=EA389574707BDED3&iid=0B39A22176CE99FB&sid=527AEE9F3446633A&eid=F9F74EC1AA08A7B9&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=10&reference_num=10