CAJ | 학술논문

针对传统布置形式下泵房硐室群各关键部位的破坏，对其原因及主控因素进行分析，并提出相应的稳定性控制对策。结果表明：布置形式、埋深大、地应力高、特别是高的水平构造应力以及围岩黏土矿物含量高是传统布置形式下硐室群出现大变形破坏的主控因素；采用泵房硐室群集约化设计技术，结合锚网索+桁架+底角注浆锚管的耦合支护技术的综合应用，有效削减了硐室围岩的应力集中程度，提高了整体稳定性，有效控制了硐室群围岩稳定性。上述技术在孔庄矿-1020水平泵房硐室群支护工程中进行了现场应用，监测数据显示，控制效果良好。
침대전통포치형식하빙방동실군각관건부위적파배，대기원인급주공인소진행분석，병제출상응적은정성공제대책。결과표명：포치형식、매심대、지응력고、특별시고적수평구조응력이급위암점토광물함량고시전통포치형식하동실군출현대변형파배적주공인소；채용빙방동실군집약화설계기술，결합묘망색+항가+저각주장묘관적우합지호기술적종합응용，유효삭감료동실위암적응력집중정도，제고료정체은정성，유효공제료동실군위암은정성。상술기술재공장광-1020수평빙방동실군지호공정중진행료현장응용，감측수거현시，공제효과량호。
Failure characteristics of the key portions in underground openings used for pump house and suction wells have been analyzed to detect its major control factors and causes, and the stability control strategy has been proposed. The result indicates that the deformation in the underground openings are mainly caused by traditional layout form, the great depth, high geostress, the high level of the horizontal tectonic stress and the high mineral content in the surround rock. The integrated design technique for pump house and suction wells are utilized. It minimizes greatly degrees of the stress concentration and enhances the overall stability of the underground excavations, combined with the counter-measures of anchor cable and truss with the foot grouting anchor pipe for stabilization of deep-buried underground openings. These new techniques have been applied in underground openings for-1020 level horizontal pump house and water suction wells in Kongzhuang coal mine. The in-situ monitoring data plots show that it has achieved very well control effect.