Based on the experiment data of stone dust suppression of propagation of coal dust continuous explosion at DMT research institute of Germany,this paper studies the problems such as,partial inertia effect of stone dust with one time explosion and repeated explosion of coal dust.

Microbial mat-related silty dykes of the Precambrian:An example from the Paleoproterozoic Chuanlinggou Formation at Jixian section in Tianjin

Based on comprehending profoundly the actuality of the isolated blast establishment and linking to the practice condition of the production overall arrangement and the exploitation term in the local mine,so the essential need,method and characteristic of the installation about the isolated blast water bottle and the rock powder shed suit to the local mine are expatiated.

Identification of sedimentary microfacies of low-permeability siltstone reservoirs by expert system;

Accurately distinguishing siltstone and salt gypsum rock under combination drilling condition;

Experimental study on deformability and strength of soft siltstone;