The normal supporting principle of rockbolt is improving the balance of stresses of surrounding rock mass.
锚杆支护的一般作用原理是提高围岩各向力的平衡程度。
The coupling balance supporting principle of inner and outer structures is put forward for these roadways.
分析深井煤层巷道围岩变形特征和支护失效的原因，提出此类巷道的内外结构耦合平衡支护原理。
On the basis of mechanism of soft rock deformation, the coupled supporting principle has been developed in this article.
根据煤矿软岩的变形力学机制，提出耦合支护力学原理。
Based on plastoelasticity mechanics and surrounding rock-supporting principle, the stability of shaft was analyzed, and calculation formula of stress, displacement and support thickness were derived.
根据弹塑性力学及围岩-支护相互作用原理，分析了竖井稳定性，推导了竖井围岩与支护的应力、位移以及支护厚度的计算公式。
Based on plastoelasticity mechanics and surrounding rock-supporting principle, the stability of shaft was analyzed, and calculation formula of stress, displacement and support thickness were derived.
根据弹塑性力学及围岩-支护相互作用原理，分析了竖井稳定性，推导了竖井围岩与支护的应力、位移以及支护厚度的计算公式。
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