| 峰后岩石剪胀性能试验研究 |
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| 引用本文： | 靖洪文.峰后岩石剪胀性能试验研究[J].岩土力学,2003,24(1):93-96. |
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| 作者姓名： | 靖洪文 |
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| 作者单位： | 1. 中国矿业大学 建筑工程学院，江苏 徐州 221008；2. 同济大学 地下建筑与工程系，上海 200092 |
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| 基金项目： | 煤炭科学基金，[ 96建0101]。 |
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| 摘 要： | 采用美国MTS815型电液伺服岩石力学试验系统，对18块大理岩试件进行了试验，从6种不同围压下岩石应力-应变试验中，获得了岩石强度、剪胀力及体积应变随围压的变化情况规律，揭示了高应力松动、圈巷道围岩大变形的力学机理。提出了破裂岩体围岩与支护相互作用及最佳支护力位于“剪胀二期”初始点的新观点。
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| 关 键 词： | 不同围压 剪胀 最佳支护力 |
| 文章编号： | 1000-7598-(2003)01-0093-05 |
| 收稿时间： | 2001-11-19 |
Experimental study on dilatancy nature of the rock post-peak behavior |
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| JING Hong-wen.Experimental study on dilatancy nature of the rock post-peak behavior[J].Rock and Soil Mechanics,2003,24(1):93-96. |
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| Authors: | JING Hong-wen |
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| Institution: | 1. College of Architecture and Civil Engineering, China University of Mining and Technology, Xuzhou 221008， China; 2. Department of Geotechincal Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | By using the testing system MTS815 with hydro-electrical servo controllers, the 18 marble specimens have been tested respectively under six different confining pressures; and the changing condition of dilatancy force and volumetric strain in the whole stress-strain process has been obtained. According to the analysis of results obtained in tests, the changing law of rock strength, dilatancy force and volumetric strain with change of confining pressure has been discovered. The mechanism of surrounding rocks’ large deformation of high-stress roadways and the interactive relation of support and surrounding rocks may be brought to light. |
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| Keywords: | different confining pressure dilatancy optimum support force |
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