摘要
针对岩石的水稳定性问题,利用赵楼、万福、南屯煤矿岩样,进行了系统的沉积岩水稳定性特征试验研究.结果表明:岩样的水稳定性差异随高岭石、伊利石和伊蒙混层的相对定量而变化,且受岩石裂隙率的影响;岩石饱水后,强度降低,受层理构造影响,抗压、抗拉破坏形态岩石多伴随或主要呈现层状破坏;岩石抗拉强度具有显著的时间效应,可用负指数进行表达.
Aiming at the softening characteristics of rocks,we tested the rocks from Zhaoulou coal mine,Wanfu coal mine,and Nantun coal mine for their water stability.The result shows that,the difference in water stability changes with the change of relative content of Kaolinite,Illite,and mixed clay minerals.These clay minerals are factors affecting the change of the water stability.The fractured rate has a significant effect on the water stability of rocks.The mechanical effect between rock and water is affected by the moisture and depends on time.The rock tensile strength time effect caused by different saturation time can be fitted with a negative index equation.
出处
《采矿与安全工程学报》
EI
北大核心
2011年第2期236-240,共5页
Journal of Mining & Safety Engineering
基金
中国矿业大学青年基金项目(2009A029)
国家自然科学基金青年基金项目(40702054)
中国科学院知识创新项目(KZCX2-YW-113)
关键词
水稳定性特征
黏土矿物
强度软化
时间效应
water steady characteristic
clay mineral
strength soften
time effect
