CAJ | 학술논문

多层采空区结构十分复杂，空洞、裂隙、残留煤柱、巷道等分布情况难以准确把握，故为确保安全，在对其上方土地进行规划利用前必须选用合理可行的手段进行工程勘察，经过大量理论研究和工程实践证明，在勘察孔的施工过程中，根据冲洗液漏失、掉钻、异常进尺等情况，可初步判定采空区裂隙发育特征和导水裂隙带高度，在检查孔施工结束后，利用高分辨率的彩色钻孔电视对其进一步确认，可大幅度提高检测效果及检测精度。结合钻孔冲洗液漏失量观测法和钻孔电视探测技术对多煤层采空区进行了探测分析，确定了垮落带与裂隙带的发育深度，并结合掌握的地质采矿条件和观测资料初步判定了相关区域采空区整体结构的稳定性，为相关问题的研究提供一定的经验和借鉴。
다층채공구결구십분복잡，공동、렬극、잔류매주、항도등분포정황난이준학파악，고위학보안전，재대기상방토지진행규화이용전필수선용합리가행적수단진행공정감찰，경과대량이론연구화공정실천증명，재감찰공적시공과정중，근거충세액루실、도찬、이상진척등정황，가초보판정채공구렬극발육특정화도수렬극대고도，재검사공시공결속후，이용고분변솔적채색찬공전시대기진일보학인，가대폭도제고검측효과급검측정도。결합찬공충세액루실량관측법화찬공전시탐측기술대다매층채공구진행료탐측분석，학정료과락대여렬극대적발육심도，병결합장악적지질채광조건화관측자료초보판정료상관구역채공구정체결구적은정성，위상관문제적연구제공일정적경험화차감。
The multi-layer goaf has complex structure. It is difficult to grasp the distribution of holes,fissures,residual coal pillars and roadways. To ensure safety,reasonable engineering investigation must be chosen before planning and utilizing the land on the goaf. Lots of theoretical researches and engineering practice proved that during the construction process of ex-ploration holes,the characteristics of fracture development and the height of water flowing fracture zone were preliminarily de-termined through observing drilling fluid leakage,drills failure and abnormal footage. And the accuracy and effect of detection was greatly improved by borehole television with high resolution after the construction completion of observing holes. Combining with the observation method of drilling fluid leakage and borehole TV system to make the detection analysis on multi-layer goaf,the developing depth of caving zone and fracture zone were determined. Based on grasping the geological and mining con-ditions and the observation information,the stability of the overall structure of the relevant regional gob can be judged,thus pro-viding some experience and reference for the study of related issues.