大直径瓦斯管径向稳定性力学性能数值分析  

Studying on radial stability numerical simulation of large pipe in mine

作　　者：童文林[1] 

机构地区：[1]淮沪煤电有限公司丁集煤矿

出　　处：《山西建筑》2007年第26期105-106,共2页Shanxi Architecture

摘　　要：通过室内试验和数值模拟方法研究了丁集煤矿大直径瓦斯管在外力作用下的力学特性,结果表明:大直径瓦斯管在围压作用下呈明显的失稳破坏形态,其强度安全系数达到3以上,采用大变形有限元数值模拟方法和实测承载力数值吻合良好,该数值方法可以为大直径瓦斯管的设计和施工提供参考。The experimental and value simulation methods have studied the Dingji coal mine large diameter gas tube under mechanics characteristic. Result indicated： the large diameter gas tube is presented stability failure model in encircles presses shape, its .safety factor reaches 3.0, it is design the large diameter gas tube and the construct provides the reference.

关 键 词：大直径瓦斯管 试验 数值模拟 失稳破坏 

分 类 号：TU311.2[建筑科学—结构工程]