Dynamic response of new protective crust with compound structure to the shock wave of gas explosion
YUE Qiang 1，SI Rong-Jun 2
1.College of Water Conservancy and Civil Engineering, Shandong Agricultural University,Taian 271018,Shandong, China;(2.Chongqing Institute of China Coal Research Institute,Chongqing,400037, China
Abstract：The new protective crust with compound structure was presented in order to reduce the distortion of the mining life-saving system under gas impact load and improve the anti-blasting ability. The dynamic response of the new protective crust to the shock wave of gas explosion was analyzed with numerical analysis method of the finite element analysis. The analysis focused on the deformation, the stress and the strain of the new protective crust under shock wave. The analysis results were compared with the dynamic response results of the single-layer protective crust. The results show that the new composite structure with flexible material layer can delay the shock effect of the gas explosion load to the mining life-saving system, and can protect the internal module of the mining life-saving system not to destroy seriously. Its fabrication technology is simple, and cost is low. The simulation experimental environment can be established and reference data can be provided for the design of the mining life-saving system by using numerical analysis method.
岳 强;司荣军. 瓦斯爆炸冲击作用下新型复合结构防护外壳的动态响应[J]. , 2011, 30(10): 147-152.
YUE Qiang;SI Rong-Jun . Dynamic response of new protective crust with compound structure to the shock wave of gas explosion. , 2011, 30(10): 147-152.
2011, Vol. 30 
