CAJ | 학술논문

针对新建矿回采巷道维护难的问题，结合新建矿的实际情况将回采巷道顶板视为薄板结构，对破坏机理进行了力学分析并制定了预应力锚杆加金属网联合支护方案，实施后顶板下沉量为59 mm，与巷道高度之比为2%，两帮总移近量为222 mm，与巷道掘进跨度之比为6%，位移范围合理。结果表明：该支护方法工艺简单且能有效控制围岩变形，保证了矿井的安全高效生产。
침대신건광회채항도유호난적문제，결합신건광적실제정황장회채항도정판시위박판결구，대파배궤리진행료역학분석병제정료예응력묘간가금속망연합지호방안，실시후정판하침량위59 mm，여항도고도지비위2%，량방총이근량위222 mm，여항도굴진과도지비위6%，위이범위합리。결과표명：해지호방법공예간단차능유효공제위암변형，보증료광정적안전고효생산。
According to extraction roadway maintenance difficult problem,combined with the actual situation of new mineral extraction roadway roof as thin plate structure in Xinjian Coal Mine,the mechanics analysis of failure mechanism and combination supporting scheme formulated the prestressed bolt with wire mesh,the roof subsidence after implementation is 59 mm,and the height of roadway ra-tio is 2%,the two nearer total amount is 222 mm,the roadway drivage span ratio is 6%,the displacement range is reasonable. Results show that the support method process is simple,and it can effectively control the deformation of the surrounding rock,guarantee the safe and efficient production of mine.