The article introduces the reasonable layout of rise face on floor rock in the steeply pitching seam.
急倾斜煤层采区上山组的布置,经历了沿煤层倾斜布置,到沿煤层底板中布置的过程,实践证明,上山组布置在煤层底板岩石中,较为合理。
Majiagou mine's safety is threatened by outburst seriously in the raise tunneling,therefore,it is important to predominate its developed process for outburst mechanism research and preventing outburst.
马家沟矿上山掘进突出严重威胁着该矿的安全生产,因此,掌握它的发展过程对突出机理研究及防突工作意义重大。
Study on retaining roadway on original site in goafafter coal mining face crossing rise;
综采工作面过上山原位留巷技术研究
The relation between district raise in the multiple coal seams and its pillars;
多煤层采区上山与煤柱之间的关系