| “饱水-风干”循环作用下砂岩损伤劣化规律研究 |
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| 引用本文： | 邓华锋,李建林,王孔伟,王乐华,朱敏. “饱水-风干”循环作用下砂岩损伤劣化规律研究[J]. 地下空间与工程学报, 2011, 7(6): 1091-1096,1120 |
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| 作者姓名： | 邓华锋 李建林 王孔伟 王乐华 朱敏 |
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| 作者单位： | 三峡大学三峡库区地质灾害教育部重点实验室,湖北 宜昌,443002 |
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| 基金项目： | 湖北省教育厅自然科学研究项目(Q20091301); 宜昌市科学技术研究与开发项目(A2011-302-6) |
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| 摘 要： | 水库正常运营过程中,将周期性的进行蓄水、排水,库岸边坡部分岩体处于“饱水-风干”的循环状态,将造成岩体性质劣化.据此,在以往研究的基础上,对循环加卸载砂岩损伤试样进行了“饱水-风干”循环作用试验,试验结果表明,在“饱水-风干”循环过程中,砂岩损伤试样的纵波波速、回弹值和单轴抗压强度均逐渐劣化,而且规律明显.水压力的升、...
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| 关 键 词： | 饱水-风干 循环作用 劣化 损伤岩体 |
Research on the Deterioration Rules of Damaged Sand Rock under Saturation-Air Dry Cycles |
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| Deng Huafeng,Li Jianlin,Wang Kongwei,Wang Lehua,Zhu Min. Research on the Deterioration Rules of Damaged Sand Rock under Saturation-Air Dry Cycles[J]. Chinese Journal of Underground Space and Engineering, 2011, 7(6): 1091-1096,1120 |
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| Authors: | Deng Huafeng Li Jianlin Wang Kongwei Wang Lehua Zhu Min |
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| Affiliation: | Deng Huafeng,Li Jianlin,Wang Kongwei,Wang Lehua,Zhu Min(China Three Gorges University Key Laboratory of Geological Hazards on Three Gorges Reservoir Area,Ministry of Education,Yichang Hubei 443002,China) |
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| Abstract: | During the normal operation of reservoir,the rock mass characteristics of the bank slopes would be deteriorated in water-rock interaction of saturation-air dry cycles because of the periodically impoundment and drainage.Therefore,an experiment was performed to simulate the process of saturation-air dry cycles with the damaged samples which have experienced the cyclic loading and unloading on base of the former study.The experiment results show that the longitudinal wave velocity,rebound value and single axi... |
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| Keywords: | saturation-air dry circulation function deterioration damaged rock mass |
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