2Prediction, prevention and control of gas emission quantity in working face in low gas coal bed247-250
5Supporting technique of changing fully-mechanized into blasting-winning coal in obligated mining face258-260
6Research and application of whisht press affusion technology for preventing coal wall collapse in picking laneway261-263
7Practice on “reinforced arch+bolting-grouting”support in the east main roadway of Guhanshan Coal Mine264-266
8Study and application of the technology of remaking water-bearing poundstone with slurry-pouring in Jiaozuo mining area267-270
14Surveying measurements for digitized topographic map of the road to the urban planning and some methods for solving problems289-290
16Deep-hole reduction flush light demolish driving in main and auxiliary shaft freeze bedrock of Chaoyang Coal Mine and the steel form cast-in-place wall of a well design and construction295-299
19Calculation on deduction from heat emission of riser and branch pipelines in the heating system307-309
20Application of double-sided ribbed earthen screen wall in earthquake zone of high earthquake intensity310-314
