CAJ | 학술논문

基于相似原理,对覆岩采动裂隙发育特征进行相似材料模拟实验分析,通过研究采场覆岩裂隙的测点层位下沉量、裂隙密度及离层率,分析了覆岩“三带冶的高度;利用钻孔探测仪实测垮落带高度,对相似模拟实验结果进行验证.根据理论分析及这两种方法得出的结果可以确定“三带冶的高度范围,为优化设计高抽巷布置层位和高位钻孔设计参数提供依据.
기우상사원리,대복암채동렬극발육특정진행상사재료모의실험분석,통과연구채장복암렬극적측점층위하침량、렬극밀도급리층솔,분석료복암“삼대야적고도;이용찬공탐측의실측과락대고도,대상사모의실험결과진행험증.근거이론분석급저량충방법득출적결과가이학정“삼대야적고도범위,위우화설계고추항포치층위화고위찬공설계삼수제공의거.
Based on the similarity principle, the simulation experiment and analysis of the similar materials were carried out on the development characteristics of the mining-induced fissures in overburden strata, analysis was made on the height of the“three zones” in the overburden strata through the study on the subsidence amount at the test point of fissures in overburden strata, the density of fissures and the bed separation rate;the height of the caving zone was measured with a drilling detector and verification was made on the similar simulation experiment results. The height range of the “three zones” can be determined according to the theoretical analysis and the experiment results obtained by two methods, this thus provided the basis for the optimized design of high-level gas drainage roadway arrangement horizon and the design of high-position borehole parameters.