| 米箭沟尾矿坝料动力特性试验研究 |
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| 引用本文： | 贺汇文,龙建辉,吕远强.米箭沟尾矿坝料动力特性试验研究[J].力学学报,2007,15(6):817-822. |
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| 作者姓名： | 贺汇文 龙建辉 吕远强 |
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| 作者单位： | 1. 长安大学地质工程系,西安710054;
2. 中煤西安设计工程有限责任公司,西安710054 |
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| 摘 要： | 本文对米箭沟尾矿坝料的组成、结构特征和物理力学性质进行分析,运用振动三轴试验确定尾矿坝料的动力特性参数,分析研究动力特性指标模型,得出动应力、动模量、阻尼比、动剪切摸量随动应变的变化规律,以及动应力与破坏振次,孔压比与振次比的变化规律,并提出符合试验结果的孔压模型,对该尾矿坝的地震动力分析及抗震稳定性评价提供一定科学依据和技术指导。
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| 关 键 词： | 米箭沟矿尾坝 振动三轴试验 动力特性 孔压模型 |
| 收稿时间： | 2007-01-29 |
| 修稿时间： | 2007-04-04 |
EXPERIMENTAL STUDY ON DYNAMIC CHARACTERISTICS OF TAILING MATERIAL AT MIJIANGOU DAM |
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| HE Huiwen,LONG Jianhui,LV Yuanqiang.EXPERIMENTAL STUDY ON DYNAMIC CHARACTERISTICS OF TAILING MATERIAL AT MIJIANGOU DAM[J].chinese journal of theoretical and applied mechanics,2007,15(6):817-822. |
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| Authors: | HE Huiwen LONG Jianhui LV Yuanqiang |
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| Institution: | 1. Chang′an University, Xi′an 710054
2. China Coal Xi′an Desigineering Co. Ltd, Xi′an 710054 |
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| Abstract: | This paper analyzes the tailing material of Mijiangou dam and their composion, structural, physical and mechanical characteristics. Tailing material parameters of dynamic characteristics are made certain through vibrational triaxial texts of dynamic characteristics. Index models of dynamic characteristics are studied. It obtains the changing laws of dynamic stress, dynamic modulus, damp ratio, dynamic shear modulus along with dynamic strain, and dynamic stress and destruct vibration, vibration times-pore pressure ratio’ changing laws. It puts forward a pore pressure model that accords to experimentation results. Then it gets some fruits and conclusions. The results offer a scientific basis and technical guidance for quake-power analysing and aseismatic stability estimation. |
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| Keywords: | Tailing dam of Mi Jiangou Vibrational triaxial experiments Mechanical properties Pore pressure model |
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