Research on application of inflatable rubber support in actual mining roadway
Zhong-liang Lu1, 2, 3, 4, Yin-zheng Li1, Hong-li Wang5
COMPUTER MODELLING & NEW TECHNOLOGIES 2014 18(12D) 310-314
1 School of Safety Science & Engineering Henan Polytechnic University, Jiaozuo, China
2 Key Laboratory of Gas Geology and Gas Control，Jiaozuo, China
3.Collaborative Innovation Center of Central Plains Economic Region for Coalbed /Shale Gas of Henan Province, Henan, Jiaozuo
4. The Collaborative Innovation Center of Coal Safety Production of Henan Provinc, Henan, Jiaozuo
5 School of Mathematics & Information Science, Henan Polytechnic University, Henan, Jiaozuo
The increasing mining depth lead to severe deformation of surrounding rock and greater ground stress, which brought great difficulties to the support and mining In order to further accelerate the support rate and simplify the support technology, thus solving the supporting problem under high stress, this paper developed an inflatable rubber support which has won the national patent for utility models. It could make the load applied on the steel support have uniform distributed and absorb part of the energy caused by roof weighting, thus effectively reducing the loads; with the weak stiffness, the rubber layer can buffer loads and achieve close contact with the roof of the roadway, so it could bear external loads quickly to prevent the surrounding rock deformation caused by the decoupling of the steel support and roadway in the initial stage. Therefore, the inflatable rubber support is of great significance for the improvement of supporting reliability and the cost reduction.