%0 Journal Article
%T RESEARCH ON COMBINED MOTION CHARACTERISTICS OF OVERLYING ROCK STRATUM AND POSITION OF KEY STRATUM<br>覆岩组合运动特征及关键层位置研究
%A Liu Kaiyun
%A Qiao Chunsheng
%A Zhou Hui
%A Teng Wenyan
%A <br>刘开云
%A 乔春生
%A 周辉
%A 滕文彦
%J 岩石力学与工程学报
%D 2004
%I 
%X The combined motion of the overlying rock stratum of coal mine is regarded as a motion of the compound key stratum sustained by stiff rock stratum. The stress of the compound key stratum is discussed by using the elastic thin plate theory and the laminated plate theory of the compound material mechanics. The collapsing load of the key stratum is obtained by adopting the plastical limit analysis method structure. Based on the collapsing load,the posotion of key stratum can be estimated approximatively.
%K mining engineering
%K compound key stratum
%K elastic thin plate
%K laminated plate
%K plastic limit load
%K position of key stratum<br>采矿工程
%K 复合关键层
%K 弹性薄板
%K 层合板
%K 塑性极限荷载
%K 复合材料
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=0CC5512BBD24067B&yid=D0E58B75BFD8E51C&vid=EA389574707BDED3&iid=5D311CA918CA9A03&sid=F1F469D6A2E9D130&eid=10F17081942653E7&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=3&reference_num=30