A large model of the screen was mounted in the laboratory for studying its modal performance. The model is suspended with steel ropes. Modal test was carried ou
Three kinds of lower rank bituminous coals from Yanzhou mine and Tengxian mine from Shandong Province were treated and hydrogenated in the study. The test resul
This article set forth two types of destructive form of stopping tunnel coal wall: de-structive form in coal and destructive form in interface of coal layer. In
The developed process and theoretical achievement for the technology of controlling surface subsidence by grouting separated layer in overburden is summarized i
A magnetic field was used to directional solidification of dendritic Al-Cu alloys.The primary arm spacing of the dendrites is increased with increasing the exte
The fully mechanized caving coal mining under the railway in mine area will result in difficulty maintenance of railway because of great distortion and subsiden
The elasto brittle plastic finite element analysis has been taken on the prediction for the deformation of the northwall of an open pit of Fushun, China. Numeri