CAJ | 학술논문

针对沂南金矿金场矿区现有支护形式及其围岩破坏情况进行现场地质调查发现，该矿区不稳固岩体的主要特征是岩体结构碎裂，巷道变形破坏主要受岩体结构面控制，地压显现形式主要表现为巷道底臌、顶板层状剥落、钢支护及锚杆支护失效等。为有效控制不良巷道围岩的稳定，设计采用树脂锚杆和金属网联合高强预应力锚网支护，现场试验及数值模拟结果表明此种支护技术应用效果良好，已经在沂南金矿逐步推广应用。
침대기남금광금장광구현유지호형식급기위암파배정황진행현장지질조사발현，해광구불은고암체적주요특정시암체결구쇄렬，항도변형파배주요수암체결구면공제，지압현현형식주요표현위항도저고、정판층상박락、강지호급묘간지호실효등。위유효공제불량항도위암적은정，설계채용수지묘간화금속망연합고강예응력묘망지호，현장시험급수치모의결과표명차충지호기술응용효과량호，이경재기남금광축보추엄응용。
According to the support method and the failure mode of surrounding rockmass at Jinchang min-ing area of Yinan Gold Mine , the unstable rockmass falling has been surveyed in the field . The field inves-tigation result revealed that the rockmass structural plane slipping caused mainly rockmass falling . T he types of deformation and failure of surrounding rockmass were floor heave , strata falling of floor , failure of steel support and bolt support etc . In order to control the stability of surrounding rockmass under poor geological condition , the high strength , pre -stressed bolt -meshes support method ( such as resign bolt and metal meshes support) has been designed and applied to support the roadway . The support method can control the stability of surrounding rockmass of roadway by the field testing and numerical model analy-zing . T he support method has been applied in Yinan Gold mine .