Simplified design of rock cavern concrete lining to resist shock loading
Simplified design of rock cavern concrete lining to resist shock loading作者机构：Butler Partners Pty Ltd Queensland 4006 Australia Protective Technology Research Centre School of Civil and Environmental Engineering Nanyang Technological University Singapore 639798 Singapore School of Resources and Safety Engineering Central South University Changsha 410083 China
出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)
年 卷 期：2010年第17卷第5期
页 面：1087-1094页
核心收录：
学科分类：081504[工学-水利水电工程] 08[工学] 081402[工学-结构工程] 081304[工学-建筑技术科学] 0815[工学-水利工程] 0813[工学-建筑学] 0814[工学-土木工程]
基 金：Projects(50934006, 50904079) supported by the National Natural Science Foundation of China Project(2010CB732004) supported by the National Basic Research Program of China
主 题：tunnel lining design shock loading dynamic response rock cavern
摘 要：A simplified method was proposed for the design of concrete lining in underground rock cavern/tunnel against shock loading. The loading may result from the detonation of explosives on ground surface or ground penetration projectiles exploding adjacent to the cavern/tunnel. The resulting problem necessitates the solution of the dynamics of a beam loaded by a transient pressure uniformly distributed over the span. According to mechanical characteristics of the system with rock bolt and shotcrete, a dynamic support design method based on equivalent single degree of freedom （SDOF） was put forward. The SDOF method was applied to obtaining the maximum displacement at the mid-span of the beam, which is often the controlling factor in the blast-resistant design. In the formulation of the problem, the proposed method combines the phenomena of spalling and structural dynamics theory. An example is provided to demonstrate the applicability of this simplified method.
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