中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
落石冲击荷载下框架门式棚洞结构优化探讨

文献类型:期刊论文

作者郭江; 王全才; 张群利; 郭绍平; 吴清
刊名水文地质工程地质
出版日期2014
卷号41期号:6页码:92-97
关键词框架门式棚洞 落石冲击 数值模拟 结构优化
ISSN号1000-3665
其他题名Exploration of structural optimization for the frame-type shed-tunnel under the impact of load of rock-fall
通讯作者王全才
中文摘要采用ANSYS/LS-DYNA有限元软件建立框架门式棚洞的两种仿真模型,模拟棚洞结构在落石冲击作用下的动力响应过程,分析冲击力在棚洞结构中的传递和扩散情况,提出通过控制冲击力扩散过程的方式对结构优化。对比结构优化前后在冲击力作用下的应力和变形情况,发现通过改变结构顶板倾角能在一定程度上减小冲击作用引起的最大等效应力,降低棚洞顶板变形,提高棚洞的抗冲击性能,且门式直柱式棚洞的结构优化效果尤为明显。 
英文摘要Simulation models of the frame-type shed-tunnel structure from two kinds of tunnel shape by the finite element program ANSYS / LS-DYNA were established to research the dynamic response process,and analyzed the transmission and dispersion characteristics of impact force in the shed-tunnel structures.Based on this,this paper presented a new method by controlling the stress process to reduce the stress and distortion,which could improve the impact resistance of the frame-type shed-tunnel structure.The results,comparing thetransmission and dispersion characteristics under the impact load before and after optimization,showed that the maximum equivalent stress and roof resistance caused by impact load could be reduced by changing the roof angle to some extent,and the optimization effect on straight column-style shed-tunnel with straight column was especially remarkable. 
收录类别CSCD
语种中文
CSCD记录号CSCD:5279690
源URL[http://ir.imde.ac.cn/handle/131551/8097]  
专题成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
推荐引用方式
GB/T 7714
郭江,王全才,张群利,等. 落石冲击荷载下框架门式棚洞结构优化探讨[J]. 水文地质工程地质,2014,41(6):92-97.
APA 郭江,王全才,张群利,郭绍平,&吴清.(2014).落石冲击荷载下框架门式棚洞结构优化探讨.水文地质工程地质,41(6),92-97.
MLA 郭江,et al."落石冲击荷载下框架门式棚洞结构优化探讨".水文地质工程地质 41.6(2014):92-97.

入库方式: OAI收割

来源:成都山地灾害与环境研究所

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