Underground opening damage from earthquakes
Underground opening damage from earthquakes
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DOI：
10.1016/0013-7952(91)90063-q
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发表时间：
1991-06
影响因子：
7.4
通讯作者：
S. Sharma;W. Judd
中科院分区：
文献类型：
--
作者：
S. Sharma;W. Judd
总结了世界范围内有关地下洞室在地震期间的行为的定性数据。这些信息是从世界各地85次地震的192份地下行为报告中收集的。这些数据已被汇编到一个数据库中，以确定可能影响地下稳定性的一些重要因素。感兴趣的参数是：(1)破坏程度；(2)覆盖层；(3)主要岩石类型；(4)支撑形式(即内衬砌或开口支撑的类型)；(5)地理位置；(6)影响地震的震级和震中距离。这项研究的一个重要贡献是建立了地表峰值地面加速度、覆盖层深度和损害之间的相关性。这一关系将允许在广泛的动态分析之前对新的地下结构的稳定性进行初步评估。此外，根据本文提供的定性数据，可以快速评估现有地下设施的脆弱性。
A summary of worldwide qualitative data regarding the behavior of underground openings during earthquakes is presented. This information has been collected for 192 reports of underground behavior from 85 earthquakes throughout the world. The data have been assembled into a data base to determine some of the significant factors that may affect underground stability. The parameters of interest are: (1) extent of damage; (2) overburden cover; (3) predominant rock type; (4) form of support (i.e. type of internal liner or opening support); (5) geographic location; and (6) magnitude and epicentral distance of the affecting earthquake. A significant contribution to this study is the development of a correlation between peak ground acceleration at the surface, overburden depth and damage. This relationship will allow for preliminary assessment of stability of new underground structures prior to extensive dynamic analyses. Also, the vulnerability of existing underground facilities may be assessed rapidly on the basis of the qualitative data presented herein.