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高应力巷道局部弱支护机理分析

庞建勇,郭兰波,刘松玉

Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering（2004）

Cited 9|Views2
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Abstract
高应力巷道发生底鼓及顶板失稳等现象应区分两种情况,即巷道全周边弱支护与局部弱支护.后一种情况,围岩从弱支护部位鼓出,到一定程度则诱发牢固支撑部位支架破坏,发展过程呈缓慢～急剧形式.局部弱支护又是巷道支护工程中的常见现象,也是理论上缺乏深入研究的问题.以弹性及粘弹性理论为基础,结合实例计算,分析了高应力巷道局部弱支护机理,阐述了底鼓与顶、帮失稳相互诱发的原因,为巷道支护结构设计提供新的理论依据.
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Key words
Elastic theory,Heaving,High-stress tunnel,Mining engineering,Short supporting,Viscoelastic theory
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