A method for assessment of excavation damaged zone (EDZ) of a rock mass and its application to a dam foundation case
文献类型：期刊论文
| 作者 | Wu, Faquan; Liu, Jianyou; Liu, Tong; Zhuang, Huaze; Yan, Changgen |
| 刊名 | ENGINEERING GEOLOGY
 |
| 出版日期 | 2009-03-23 |
| 卷号 | 104期号:3-4页码:254-262 |
| 关键词 | Excavation disturbed zone (EDZ) Unloading strain energy Accumulative opening displacement of cracks Damage degree Borehole camera Xiaowan hydropower station |
| ISSN号 | 0013-7952 |
| DOI | 10.1016/j.enggeo.2008.11.005 |
| 文献子类 | Article |
| 英文摘要 | Excavation of slope is an unloading process, and also an energy releasing process when the stress in the rock mass is unloaded, leading to the rebounding deformation towards the free face. And then a zone, namely excavation damaged zone (EDZ), will be formed near the excavation boundary, where the rock is damaged or disturbed and its physical, mechanical and hydraulic properties are greatly changed. This paper is to put forward a new method to quantify the extent and damage degree of the EDZ according to the unloading strain energy which is released in the process of excavation. A simple relationship between unloading strain epsilon and accumulative opening displacement T of cracks, epsilon = dT/dh, is proposed to describe the damage degree of rock mass in the EDZ, where h is the depth variable in normal direction of the open cracks. |
| WOS关键词 | DISTURBED ZONE ; PERFORMANCE ; MINE |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000264782600010 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/70396]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Liu, Jianyou |
| 作者单位 | Chinese Acad Sci, Inst Geol & Geophys, Key Lab Engn Geomech, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Faquan,Liu, Jianyou,Liu, Tong,et al. A method for assessment of excavation damaged zone (EDZ) of a rock mass and its application to a dam foundation case[J]. ENGINEERING GEOLOGY,2009,104(3-4):254-262. |
| APA | Wu, Faquan,Liu, Jianyou,Liu, Tong,Zhuang, Huaze,&Yan, Changgen.(2009).A method for assessment of excavation damaged zone (EDZ) of a rock mass and its application to a dam foundation case.ENGINEERING GEOLOGY,104(3-4),254-262. |
| MLA | Wu, Faquan,et al."A method for assessment of excavation damaged zone (EDZ) of a rock mass and its application to a dam foundation case".ENGINEERING GEOLOGY 104.3-4(2009):254-262. |
入库方式： OAI收割
来源：地质与地球物理研究所
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