摘要
对粉砂岩经历100—400℃不同温度作用后的冲击破碎特性进行实验研究，分析了不同温度后粉砂岩冲击破碎特性，并对其破坏机理作初步探讨．研究表明：高温后岩石的破裂形态以沿冲击加载方向的剪切破坏为主，且在相同冲击动载作用下，岩石经历的温度越高，它的破坏程度越大，碎块数量越多．反映了岩石在高温作用后内部结构发生改变，为深部矿床开采提供一定参考．
The laboratory tests are done for studying on impact fragmentation behavior of siltstone after undergoing different high temperatures. The temperature varies in the range of 100℃ ,200 ℃ ,300℃ ,400 %. The impact fragmentation characteristics of sandstone after different temperature are analyzed. The damage mechanism of sandstone is discussed briefly. The test results show that the damage mode after high shear failure along the way of impact. The siltstone has consid temperature is always due to erable degree of damage and more fragment after undergoing different temperature when the dynamic loading same. The change of rock internal structure is reflected after high temperature. It taken as reference to mine mineral at a certain extent.
出处
《南华大学学报（自然科学版）》
2009年第1期45-47,共3页
Journal of University of South China：Science and Technology
基金
国家自然科学基金资助项目(50674107)
关键词
高温后
粉砂岩
破碎特性
冲击
post - high temperature
siltstone
fragmentation behavior
impact is the can be
