%0 Journal Article
%T STABILITY ANALYSIS OF ROCK COVER OF QINGDAO KIAOCHOW BAY SUBSEA TUNNEL UNDER EXPLOSIVE LOADS<br>爆破荷载作用下青岛胶州湾海底隧道覆盖岩层稳定性分析
%A ZHANG Xin
%A LI Shucai
%A <br>张 欣
%A 李术才
%J 岩石力学与工程学报
%D 2007
%I 
%X In order to analyze the effects of the explosive load on the rock cover of Qingdao Kiaoshow Bay subsea tunnel,a calculating model is used;and the explosive load is imposed on surrounding simultaneous blast holes with equivalent stress. Left and right typical segments are chosen according to different surrounding rock types and rock cover thickness;and 3D finite element analysis is performed by ABAQUS. By means of analysis of velocities and accelerations at survey points,it is easy to draw the conclusion that each velocity-time curve and acceleration-time curve can satisfy the subsea distortion rule,and the level and vertical rapidity peak values satisfy those of subsea tunnel failure criterion. The influence scope under explosive load is much less than design rock cover. Then,the design rock cover is steady under such explosive load. At the same time,the referenced rock cover is offered in view of the economical factors,and the value is testified finally.
%K subsea tunnel
%K numerical analysis
%K rock cover thickness
%K explosive load
%K stability<br>海底隧道
%K 数值计算
%K 覆盖岩层厚度
%K 爆破荷载
%K 稳定性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=67641DA626569BFFCE24A62246F9412D&yid=A732AF04DDA03BB3&vid=96C778EE049EE47D&iid=708DD6B15D2464E8&sid=4EAACFFC5E13724F&eid=0EA9E55E39F0369F&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=0&reference_num=19