| 李术才,朱维申.加锚节理岩体断裂损伤模型及其应用[J].水利学报,1998,29(8):0052-0057 |
| 加锚节理岩体断裂损伤模型及其应用 |
| An application of anchoring fracture-damage model to the stability analysis of the underground chambers |
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| DOI： |
| 中文关键词: 加锚节理岩体 断裂损伤模型 小浪底 地下洞室群 |
| 英文关键词: anchored jointed rockmass fracture-damage model underground chambers |
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| 中文摘要: |
| 基于等效应变能原理，在分析压剪、拉剪应力状态下加锚节理面的受力与变形特点的基础上，运用断裂损伤力学的方法建立了加锚断续节理岩体的本构模型及其损伤演化方程，并将该成果应用到黄河小浪底水利枢纽工程地下厂房洞室群施工稳定性分析中.结果表明，该模型能较好地反映加锚节理岩体力学特性及开挖卸荷过程中围岩渐近破坏的规律。 |
| 英文摘要: |
| Based on the hypothesis of equivalent strain energy and analysis of the characteristic of stresstrain of anchored joint plane under the state of compression shear or tension shear stress, the constitutive relations and damage evolution equation of intermittent jointed rockmass supported with bolts and cables are established by fracture-damage mechanics method. These relations and equations are applied to the stability analysis of the surrounding rockmass of the underground chambers. The results indicate that the characteristics of the anchored jointed rochmass and the gradual damage law can be better reflected by the model proposed in this paper. |
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