论文部分内容阅读
软岩巷道发生底鼓时，顶板或两帮常同时遭受破坏，其原因既可能是巷道全周边支护抗力不足，也可能仅是底板或顶帮支护抗力不足。称后者为局部欠支护效应，它是支护工程中的常见现象。本文以弹性及粘弹性理论为基础研究巷道的局部欠支护效应，阐述了底鼓与顶、帮失稳相互诱发的机理，为支护结构设计提供了新的理论依据。将该理论用于平顶山矿区深部软岩巷道，总结支护成败经验，改进支护结构，取得了初步成效。
Soft rock roadway at the end of the drum, the roof or two often suffered damage at the same time, the reason may be full support of the roadway around the lack of resistance, it may only be the top floor or top to support inadequate resistance. Said the latter is a partial support effect, it is a common phenomenon in support engineering. In this paper, based on the theory of elasticity and viscoelasticity, the local under-support effect of roadway is studied. The mechanism of mutual inducement between bottom drum and top and bottom is expounded, which provides a new theoretical basis for the support structure design. The theory is applied to the deep soft rock roadway in Pingdingshan mining area, the experience of the success or failure of the support is summarized, and the support structure is improved, and the preliminary results are obtained.