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| 冲击荷载作用下岩石动力特性的试验研究 | |
| 引用本文： | 葛科,刘恩龙,赵玲. 冲击荷载作用下岩石动力特性的试验研究[J]. 工程勘察, 2010, 38(5): 11-15 |
| 作者姓名： | 葛科 刘恩龙 赵玲 |
| 作者单位： | 邢台职业技术学院建筑工程系,河北,邢台,054000;四川大学水利水电工程学院,成都,610055 |
| 基金项目： | 国家自然科学基金资助项目(50809001);;中国科学院山地灾害与地表过程重点实验室开放研究基金资助项目 |
| 摘 要： | 应用高压气枪冲击试验设备对大理岩样进行了不同固体冲击速度下的冲击试验,探讨岩石类材料在冲击荷载下作用下的破坏过程和动力特性。共对9组大理岩样进行了冲击试验,试验时固体冲击速度逐渐增加,速度范围是126.2～531.9m/s。得到的初步试验结果如下:当固体冲击速度较低时,岩样整体没有崩解破碎,局部发生破碎,且随着冲击速度的增大,产生的微裂纹会逐渐增多;当固体冲击速度较高时,岩样整体发生崩解破碎,且随着固体冲击速度的增大,破碎后的岩样中细颗粒的含量增大,即随着固体冲击能的增大,岩样的破碎程度逐渐增加。 |
| 关 键 词： | 岩石 冲击 动力特性 破碎 |
Experimental study on the dynamic properties of rock subjected to impact loading |
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| Ge Ke,Liu Enlong,Zhao Ling. Experimental study on the dynamic properties of rock subjected to impact loading[J]. Geotechnical Investigation & Surveying, 2010, 38(5): 11-15 | |
| Authors: | Ge Ke Liu Enlong Zhao Ling |
| Affiliation: | 1.Department of Building Engineering;Xingtai Polytechnic College;Xingtai 054000;China;2.School of Hydraulic and Hydropower Engineering;Sichuan University;Chengdu 610065;China |
| Abstract: | Impact tests are conducted on marble samples using the high gas gun apparatus with different impacting velocities in order to investigate the breakage processes and dynamic characteristics of rock-like materials when subjected to impacting loadings.There are nine sets of marble samples tested and the impacting velocities increased gradually with the range of from 126.2 m /s to 531.9m /s during testing.The primary results are obtained as follows: when the impacting velocities are relative lower,the rock samp... |
| Keywords: | rock impact dynamic properties fragmentation |
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