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中文摘要：
以阳泉三矿老采空区水害防治为工程背景,采用工程实测和数值模拟的方法,对采空区顶板导水裂隙侧向边界进行了预测研究。提出了以水平变形量判别顶板导水裂隙侧向边界的方法,基于K8101工作面相邻老采空区涌水工程实测数据得出的导水裂隙侧向边界值,确定了阳泉三矿顶板产生导水裂隙的临界水平变形判别指标εAB≥5 mm·m-1,利用此指标作为判据,预测了K8404工作面顶板导水裂隙侧向边界,据此制定了其相邻老采空区放水方案。
英文摘要：
Based on the engineering background of old goaf water hazard control in the third coal mine of Yangquan,the lateral boundary prediction of water conducting fracture formed in roof is studied by use of engineering detection and numerical simulation.A method which uses the quantity of horizontal deformation as the criterion for water conducting fracture is proposed.According to the measured values of the lateral boundary of water conducting fracture which comes from the old goaf near the work face K8101,a criterion for water conducting fracture is determined,that is ε AB≥ 5 mm ·m-1.Based on the criterion,the lateral boundary of water conducting fracture for work face K8404 is predicted,and the water drainage plan for the nearby old goaf is proposed.
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