%0 Journal Article
%T FORMATION MECHANISM AND INITIAL CONDITION OF SOIL CAVITY<br>土洞形成的机理及起始条件
%A Wan Zhiqing
%A Qin Siqing
%A Li Zhigang
%A Qian Haitao
%A <br>万志清
%A 秦四清
%A 李志刚
%A 钱海涛
%J 岩石力学与工程学报
%D 2003
%I 
%X The formation mechanism and factors affecting of soil cavity are analyzed. It is realized that super- hydrostatic pressure makes the soil block spalled and fissured,and hydrodynamic pressure makes soil fine grain migrated. Both actions induce the enlargement of soil cavity. The initial conditions of soil cavity formation,i. e.,the critical declined magnitude of water level crHD,critical water flowrate vcr and critical discharge Qcr are formulated.
%K soil mechanics
%K soil cavity
%K initial condition
%K declined amplitude of critical water level
%K critical water flowrate
%K critical discharge<br>土力学
%K 土洞
%K 孔隙水压力
%K 临界地下水
%K 流速
%K 涌水量
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=586845B57676E7D9&yid=D43C4A19B2EE3C0A&vid=BC12EA701C895178&iid=5D311CA918CA9A03&sid=CB8F7B3BEDA8D32B&eid=83525804D8B40525&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=9&reference_num=16