近距离煤层下采上掘动压影响巷道支护技术研究

Study on support technology of roadway affected by dynamic pressure with lower layer mining and upper layer excavation

为解决潘一矿东区1262(3)工作面两巷掘进期间受其下方正在回采的1242(1)工作面采动影响的巷道支护难题,根据潘一矿1262(3)工作面的工程地质条件,分析动压巷道支护的影响因素和支护对策,并提出一种联合分步支护方案。工程实践表明,该方案有效地控制了巷道围岩变形,取得了良好的支护效果。

In order to solve support problems of roadway affected by dynamic stress with upper lay excavation and lower layer mining production in Panyi Mine, according to project geological condition of No. 1262（3） work face in Panyi Mine, the infiuen tial factor of dynamic stress roadway support and support measures were analyzed, and a reinforcement scheme was proposed. Field experiment result showed that the combined step by-step support scheme could effectively prevent roadway deformation, and favorable support effect was achieved in application.