| 复杂应力状态下断续节理岩体断裂损伤机理研究及其应用 |
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| 引用本文： | 李术才,朱维申.复杂应力状态下断续节理岩体断裂损伤机理研究及其应用[J].岩石力学与工程学报,1999,18(2):142-142. |
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| 作者姓名： | 李术才 朱维申 |
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| 作者单位： | 1. 武汉水利电力大学博士后流动站,武汉,430072
2. 中国科学院武汉岩土力学研究所,武汉,430071 |
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| 基金项目： | 国家自然科学基金,山东省自然科学基金 |
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| 摘 要： | 应用断裂力学和损伤力学的理论，研究断续节理岩体开挖卸荷过程中渐近破坏的力学机制，从压剪和拉剪两种应力状态出发，建立了复杂应力状态下断续节理岩全的损伤演化方程，并将其应用于某矿山开采过程围岩破坏特征分析中，结果表明理论计算与工程实践较为吻合。该方法为定量分析地下工程围岩破坏过程提供了理论依据。
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| 关 键 词： | 断续节理岩体 复杂应力状态 损伤演化方程 |
| 收稿时间： | 1997-6-28 |
| 修稿时间： | 1997-10-30 |
FRACTURE DAMAGE MECHANISM OF DISCONTINUOUS JOINTED ROCKMASS UNDER THE STATE OF COMPLEX STRESS AND ITS APPLICATION |
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| Li Shucai,Zhu Weishen.FRACTURE DAMAGE MECHANISM OF DISCONTINUOUS JOINTED ROCKMASS UNDER THE STATE OF COMPLEX STRESS AND ITS APPLICATION[J].Chinese Journal of Rock Mechanics and Engineering,1999,18(2):142-142. |
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| Authors: | Li Shucai Zhu Weishen |
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| Abstract: | Fracture and damage theory is used to study the mechanical mechanism of gradual destroying of discontinuous jointed rockmass during excavation and unloading. The damage evolution equations of discontinuous jointed rockmass under the state of compressionshearing and tensionshearing are derived and used to analyze movement and damage feature of surrounding rockmass of a mine during mining. The caculated results show good agreement with engineering practice, which is helpful to reasonably analzse the destroying process of surrounding rockmass in underground engineering. |
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| Keywords: | discontinuous jointed rockmass complex stress state damage evolution equation |
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