CAJ | 학술논문

为了解决潞宁矿区松软特厚煤层巷道锚杆支护技术难题，针对5号煤层特厚、酥软、易碎的特征，分析了地质力学参数测试结果，模拟研究了锚杆支护系统核心参数锚固长度、预应力及预应力扩散对锚杆支护效果的影响，进行了煤岩体锚固性能现场试验，结合试验结果，提出采用高预应力锚杆锚索组合支护系统控制围岩变形，优化了支护系统结构，进行应用实践，形成了有效的控制技术体系，为潞宁矿区该类型巷道维护提供关键依据。
위료해결로저광구송연특후매층항도묘간지호기술난제，침대5호매층특후、소연、역쇄적특정，분석료지질역학삼수측시결과，모의연구료묘간지호계통핵심삼수묘고장도、예응력급예응력확산대묘간지호효과적영향，진행료매암체묘고성능현장시험，결합시험결과，제출채용고예응력묘간묘색조합지호계통공제위암변형，우화료지호계통결구，진행응용실천，형성료유효적공제기술체계，위로저광구해류형항도유호제공관건의거。
In order to solve difficult problem of anchored bolt supporting soft and extremely -thick coal-seam in Lu’ ning Mining Area, geo-mechanical parameters were tested and the influence of key parameters of anchored bolt supporting including anchored length , pre-stress and its diffusion on supporting effect was simulated.Anchored property of coal and rock body was tested on the site.Based on this, anchored bolt and cable supporting system with high pre-stress was put forward to control surrounding rock deformation and sup-porting system structure was optimized.Actual application showed that this system could effectively control deformation and provide key reference for this style roadway in Lu ’ ning Mining Area.