| 高低温冻融循环条件下花岗岩力学性能试验研究 |
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| 引用本文： | 蒋立浩,陈有亮,刘明亮. 高低温冻融循环条件下花岗岩力学性能试验研究[J]. 岩土力学, 2011, 32(Z2): 319-323 |
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| 作者姓名： | 蒋立浩 陈有亮 刘明亮 |
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| 作者单位： | 上海理工大学 土木工程系, 上海 200093 |
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| 基金项目： | 国家自然科学基金(No.10872133); 上海市浦江人才计划(No.09PJ1407700) |
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| 摘 要： | 高低温冻融循环条件下岩石的力学特性是岩石力学与工程中的一个重要课题。通过试验研究了花岗岩在不同温度幅值的高低温冻融循环条件下，单轴抗压强度、弹性模量、峰值变形、应力-应变曲线随循环次数变化的规律，并基于Loland损伤力学模型，推导出岩石类材料损伤变量表达式，揭示了花岗岩力学性能劣化与循环次数、循环温度幅值的关系，为高低温冻融循环条件下岩石力学性能的研究提供一定的试验、理论基础
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| 关 键 词： | 高温 冻融循环 花岗岩 损伤变量 |
| 收稿时间： | 2011-03-18 |
Experimental study of mechanical properties of granite under high/low temperature freeze-thaw cycles |
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| JIANG Li-hao,CHEN You-liang,LIU Ming-liang. Experimental study of mechanical properties of granite under high/low temperature freeze-thaw cycles[J]. Rock and Soil Mechanics, 2011, 32(Z2): 319-323 |
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| Authors: | JIANG Li-hao CHEN You-liang LIU Ming-liang |
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| Affiliation: | Department of Civil Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China |
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| Abstract: | It is an important topic in rock mechanics and rock engineering to study the mechanical properties of rocks under the high temperature freeze-thaw cycles.The variation rules of the uniaxial compressive strength,elastic modulus,peak deformation and stress-strain curve under the influence of freeze-thaw cycles at different temperature amplitudes are studied by experimental tests.Based on Loland damage mechanical model,the material damage variable expression is deduced;and the relationship between granite mech... |
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| Keywords: | high temperature freeze-thaw cycles granite damage variable |
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