%0 Journal Article
%T DETERMINATION OF RATIONAL STAGGERED DISTANCE IN DOUBLE-LONGWALL FACES IN MINING ON CONFINED AQUIFER<br>承压水体上对拉工作面开采合理错距的确定
%A Peng Suping
%A Luo Liping
%A Wang Jin''''an
%A <br>彭苏萍
%A 罗立平
%A 王金安
%J 岩石力学与工程学报
%D 2003
%I 
%X The influence of staggered distance on the failure of floor strata in double-longwall mining on the confined aquifer is local and temporary. After longwall mining having reached a certain scale, the failure depth in floor strata depends on macroscopic parameters of mining technology and geological conditions. The current and ultimate failure depth of the floor strata does not change due to the magnitude of mining staggered distance (5~30 m). Based on the mining geological conditions of a practical double longwall mining panel, a rational staggered distance of double-longwall faces is proposed to be within 10m, by means of observing the changes of in-situ abutment pressure and 3D coupled numerical modeling of fracture in floor strata.
%K mining engineering
%K rational staggered distance
%K confined aquifer
%K double-longwall mining
%K abutment pressure observation
%K water-inrush in floor strata
%K numerical simulation<br>采矿工程
%K 承压水
%K 对拉工作面开采
%K 矿压观测
%K 底板突水
%K 数值模拟
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=47D03589C1018B39&yid=D43C4A19B2EE3C0A&vid=BC12EA701C895178&iid=CA4FD0336C81A37A&sid=B6DA1AC076E37400&eid=286FB2D22CF8D013&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=0&reference_num=5