This article is about how to construct coal mining shaft tower with sliding frame reversing mould construction, which includes combined steel mould design for tower wall, pilaster, and inner octagonal location.

Emergency measures in coalmine during earthquake;

Coal-bearing-series Kaolin resource in Tashan mine;

Discussion on the Problem of the Environmental Protection of Tashan Coal Mine;

Study on scheme of IF mobile communication in coal mine underground;

The status of mobile communication in coal mine underground is introduced, the difficult technical problems including laneway infection for wireless transmission and weak signal reception and noise interference are analyzed, and ways to solve these problems are proposed.

To solve the problem of frequent over-grade trip of fast short-circuit protection in high voltage power supply system of coal mine underground,a scheme of adaptive protection system based on independent substation was proposed.