CAJ | 학술논문

　　采用不同含水状态破碎矸石分别进行侧限压密、蠕变观测、慢速浸水、卸载实验。实验发现，矸石轴向压缩时，应力-压缩率曲线是一条非线性曲线，可用指数函数拟合；矸石在经过实验后，发生明显的颗粒破碎，不均匀系数增大，有效粒度减小，并且浸水试样破碎程度明显大于干燥及天然状态矸石；矸石在经过浸水后，发生明显的轴向附加压缩，浸水过程中压缩率增长了9.68%，占试样压缩过程变形的37%，产生“湿陷”现象。分析认为，矸石发生浸水湿陷的机制为水对矸石颗粒的软化及水的润滑作用使得颗粒重新破碎及位置再次调整，导致矸石整体被再次压密。
　　채용불동함수상태파쇄안석분별진행측한압밀、연변관측、만속침수、사재실험。실험발현，안석축향압축시，응력-압축솔곡선시일조비선성곡선，가용지수함수의합；안석재경과실험후，발생명현적과립파쇄，불균균계수증대，유효립도감소，병차침수시양파쇄정도명현대우간조급천연상태안석；안석재경과침수후，발생명현적축향부가압축，침수과정중압축솔증장료9.68%，점시양압축과정변형적37%，산생“습함”현상。분석인위，안석발생침수습함적궤제위수대안석과립적연화급수적윤활작용사득과립중신파쇄급위치재차조정，도치안석정체피재차압밀。
Confined loading, creep observations, water immersion, unloading experiments about bro-ken coal gangue which has different water content were performed. The results showed that during the compression process, the stress-compression ratio relation can be fitted as a non-linear curve by expo-nential function; after the test, the significant particle breakage phenomenon occurred, the non-uniform coefficient increased and the effective particle size decreased and the fragmentation degree of water immersion specimens was greater than that of dry and natural state of waste rock; the axial additional compression occurred to coal gangue after water immersion, the compression rate of this process in-creased by 9.68%, accounting for 37% of the whole process, “collapsibility” phenomenon occurred;through the analysis, the mechanism of water immersion collapsibility of coal gangue is that, water sof-tening and water lubrication on the coal gangue particles made the particles re-broken and further ad-justment of the position, resulting in the coal gangue compact once again.