CAJ | 학술논문

针对砂岩顶板条件下采煤工作面沿空留巷围岩变形大、支护难等问题，通过数值模拟软件模拟了沿空留巷围岩变形及应力分布特点，并对沿空留巷围岩变形控制进行了分析。提出了采用“锚杆+锚索”的巷内基本支护和单体液压支柱作加强支护限制顶底板移近，对充填体补打支护锚杆限制充填体向巷道方向的横向运动的支护方法，并进行了现场试验。试验结果表明，采用该技术后，巷道围岩变形得到了有效控制，为工作面的正常生产创造了条件。
침대사암정판조건하채매공작면연공류항위암변형대、지호난등문제，통과수치모의연건모의료연공류항위암변형급응력분포특점，병대연공류항위암변형공제진행료분석。제출료채용“묘간+묘색”적항내기본지호화단체액압지주작가강지호한제정저판이근，대충전체보타지호묘간한제충전체향항도방향적횡향운동적지호방법，병진행료현장시험。시험결과표명，채용해기술후，항도위암변형득도료유효공제，위공작면적정상생산창조료조건。
In order to solve the problem of large deformation and difficult supporting in roadway retained along gob under sand roof, applying numerical software to simulating surrounding rock deformation and stress distribution characteristics and analyzing deformation controlling. It was put forward that applying basic supporting of “anchored bolt+cable” and strengthening supporting of single-props to reducing convergence of roof and floor, and adding anchored bolt to restrict horizontal movement of stowing body. Field test showed that surrounding rock deformation was controlled effectively, which provided condition for normal mining.