| 尹土兵,李夕兵,洪亮,周子龙,叶洲元.高温后粉砂岩冲击破碎特性研究[J].南华大学学报(自然科学版),2009,23(1):45~47.[YIN Tu-bing,LI Xi-bing,HONG Liang,ZHOU Zi-long,YE Zhou-yuan.Experimental Study on Impact Fragmentation Characteristics of Siltstone after High Temperature[J].Journal of University of South China(Science and Technology),2009,23(1):45~47.] |
| 高温后粉砂岩冲击破碎特性研究 |
| Experimental Study on Impact Fragmentation Characteristics of Siltstone after High Temperature |
| 投稿时间：2008-12-25 |
| DOI： |
| 中文关键词: 高温后 粉砂岩 破碎特性 冲击 |
| 英文关键词:post-high temperature siltstone fragmentation behavior impact |
| 基金项目:国家自然科学基金资助项目（50674107） |
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| 中文摘要: |
| 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. |
| 英文摘要: |
| 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 temperature is always due to shear failure along the way of impact.The siltstone has considerable degree of damage and more fragment after undergoing different temperature when the dynamic loading is the same.The change of rock internal structure is reflected after high temperature.It can be taken as reference to mine mineral at a certain extent. |
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