%0 Journal Article
%T RELIABILITY ANALYSIS OF STABILITY OF COAL ROADWAY SUPPORTED BY ROCK-BOLT<br>锚杆支护煤巷稳定性可靠度分析
%A He Manchao
%A Su Yonghua
%A Sun Xiaoming
%A Xu Nengxiong
%A <br>何满潮
%A 苏永华
%A 孙晓明
%A 徐能雄
%J 岩石力学与工程学报
%D 2002
%I 
%X Mechanism of some serions rock caving cases in rock bolted coal roadway is very complex. There are mainly two reasons:the one is the uncertainty of physical parameters and mechanical characteristics of surrounding-rock,and the other is that various calculation models used for analyzing the stability of surrounding-rock in roadway only partly reflect the mechanical behaviors of surrounding-rock. To improve design approach based on safety coefficient and to consider stochastic factors as mentioned above,based on a model of loose weight for rock-mass of underground pressure theory and a principle of resistance force development in structure supported by rock-bolt,the paper researched calculation methods of resistance force and load in limite state equation which was used to calculated stability degree of surrounding-rock in coal supported by rock-bolt. A stability reliability degree for surrounding-rock of a underground roadway in coal supported by rock-bolt has been calculated,and the conclusion is that failure probability about l0 percent of surrounding-rock in a rock-bolt supported coal roadway is acceptable.
%K coal mine roadway
%K rock-bolt support
%K stability reliability degree<br>煤巷
%K 锚杆支护
%K 稳定可靠度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=ABD5ADE6CD03C855&yid=C3ACC247184A22C1&vid=659D3B06EBF534A7&iid=59906B3B2830C2C5&sid=A369E079A2D86222&eid=89C2070EF7E15C3A&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=7&reference_num=11