| 双江口工程地下洞室群围岩损伤及稳定性研究 |
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| 引用本文： | 项吕,朱维申,马庆松,张乾兵.双江口工程地下洞室群围岩损伤及稳定性研究[J].岩土力学,2011,32(Z2):551-555. |
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| 作者姓名： | 项吕 朱维申 马庆松 张乾兵 |
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| 作者单位： | 山东大学岩土与结构工程研究中心; |
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| 摘 要： | 对四川省双江口水电站工程的地下洞群的节理岩体围岩稳定性进行研究,分别采用了弹塑性模型、节理岩体断裂损伤模型进行数值分析。在弹塑性模型中,采用锚固等效法来模拟锚杆及锚索的支护效果。断裂损伤模型以损伤及断裂力学原理为基础,运用损伤本构模型和损伤演化方程在FLAC3D软件的框架下开发出子程序,考虑了岩体中节理裂隙对洞室围岩稳定性的影响,进而得到用上述的模型和计算程序分析出的围岩塑性区、损伤演化区和位移规律。将两种模型的计算结果与相应工程模型试验的结果进行了比较分析。研究结果表明,损伤模型更接近工程实际情况,与模型试验结果更为接近。
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| 关 键 词： | 节理岩体 地下洞群 损伤断裂模型 数值分析 地质力学模型实验 |
| 收稿时间： | 2011-04-02 |
Damage and stability analysis of Shuangjiangkou underground caverns |
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| XIANG Lü,ZHU Wei-shen,MA Qing-song,ZHANG Qian-bing.Damage and stability analysis of Shuangjiangkou underground caverns[J].Rock and Soil Mechanics,2011,32(Z2):551-555. |
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| Authors: | XIANG Lü ZHU Wei-shen MA Qing-song ZHANG Qian-bing |
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| Institution: | Research Center of Geotechnical and Structural Engineering, Shandong University, Jinan 250061, China |
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| Abstract: | To study the stability of jointed rock mass of the underground caverns in Shuangjiangkou Hydropower Project in Sichuan province,elastoplastic model and jointed rock mass fracture damage model are adopted for numerical analysis.In the elastoplastic model,the supporting effect of the cable and anchor string are simulated by equivalent anchoring method.Based on damage mechanics and fracture mechanics,damage constitutive model and damage evolution equation are utilized to develop subprogram under the framework ... |
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| Keywords: | jointed rock mass underground cavern group damage and fracture model numerical analysis geomechanical model test |
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