The influence of an excavation damaged zone on the thermal-mechanical and hydro-mechanical behaviors of an underground excavation
The influence of an excavation damaged zone on the thermal-mechanical and hydro-mechanical behaviors of an underground excavation
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DOI：
10.1016/j.enggeo.2008.04.004
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发表时间：
2008-10-17
影响因子：
7.4
通讯作者：
Cho, W. J.
中科院分区：
文献类型：
--
作者：
Kwon, S.;Cho, W. J.
在韩国，参考处理系统KRS。是在2006年经过10年的研究和开发后提出的。在KRS中，高放射性废物处置库被认为位于花岗岩等结晶岩石中。为了验证KRS的可行性、安全性和稳定性，KURT于2006年11月建成。通过现场试验和室内试验，研究了昆明城市轨道交通控制爆破施工中开挖破坏区的大小和特征。采用流-力耦合和热-力耦合分析方法，研究了隧道周边EDZ对隧道近场热力、水力和力学特性的可能影响。从这项研究中，它被发现，EDZ的存在可以影响热，水力和力学行为的近场，它被建议，EDZ应被视为一个重要的参数，在设计的地下处置库。(C)2008 Elsevier B. V.保留所有权利。
In Korea, a reference disposal system, KRS. was proposed in 2006 after 10 years ofresearch and development. In the KRS, the high-level radioactive waste repository is considered to be located in a crystalline rock likes granite. For a validation of the feasibility, safety, and stability of the KRS, an underground research tunnel, KURT was constructed in Nov. 2006. During the construction of KURT by a controlled blasting, the size and characteristics of an excavation damaged zone(EDZ) were investigated by in situ as well as laboratory tests. The possible influences of an EDZ around a tunnel on the thermal, hydraulic and mechanical behaviors of the near field were investigated by using hydro-mechanical and thermo-mechanical coupling analyses. From this study, it was found that the existence of an EDZ can influence the thermal, hydraulic, and mechanical behaviors of the near field and it was recommended that an EDZ should be considered as an important parameter during the design of underground repositories. (C) 2008 Elsevier B.V. All rights reserved.