Optimization design of faces in Xinji No.1 coal mine;
新集一矿开采工作面优化设计
The influence of staggered distance on the failure of floor strata in double-longwall mining on the confined aquifer is local and temporary.
以淮北杨庄矿承压水体上对拉工作面开采为研究背景,通过现场矿山压力观测、数值模拟分析,认为对拉面错距在10 m以内为宜。
For example, subsidence is predicted by the method for prediction of multi-face mining, with seam of anticlinal structure being simply divided into a few inclined seams.
对曲面分布矿层进行地表移动预计时，通常是把曲面分布近似地当作平面分布来处理，例如把背斜构造形式的矿层简单地分为几个斜平面，然后利用多工作面开采地表移动预计方法进行预计，这样则会降低地表移动预计精度。
Study on Completed Equipment of Thinner Seam High Efficient Fully Mechanized Mining Face;
较薄煤层高效开采工作面设备优化配套研究
high-face room-and-pillar mining
高工作面房柱式开采
Study on the Gas Migration in the Goaf Filling of Full-mechanized Mining Working Face
综采工作面充填开采采空区瓦斯运移研究
Technology of30kt/d Full-mechanized Mining with Large Mining Height in Large Angle Coal seam
日产30kt大采高大倾角综采工作面开采技术
Technology of Light-support Caving Mining with Large Angle
轻放工作面大倾角仰斜开采工艺技术
Practice on Mining Method Changing from Top Coal Caving Mining to Top Slice Mining
工作面由放顶煤开采改为顶分层开采的实践
Study of Mining Upper Limit of Section 11610 in Tianzhuang Coal Mine,Yanzhou of Shandong Province
兖州田庄矿11610工作面开采上限的研究
Application of the non-coal column recovery technology in fully mechanized top coal caving mining face
无煤柱开采技术在综放工作面的应用
Continuous recovery technology for large downhill of light caving face in island seam
孤岛轻放工作面过下山连续开采技术
High efficiency coal mining technology used under complicated geological conditions
复杂地质条件下工作面高效开采技术
Roof breaking law along top-coal caving face
综放开采沿工作面倾向顶板垮落规律
No-operator Working Face Mining Research of Nearly Level Extremely Thin Coal Seam Being Difficult to Mine;
难采近水平极薄煤层无人工作面开采研究
Practice of Continuous Mining at Many Fully Mechanized Face Under Sperical Conditions
特殊条件下多个综采工作面连续开采的实践
Technology and Application of Multi Continuous Rotary Mining to Fully Mechanized Longwall Coal Mining Face
综采工作面连续多次旋转开采技术及应用
Research on Mining under Pressure and Comprehensive Water Prevention and Control Countermeasures at Coal Face
采煤工作面带压开采分析及综合防治水措施
Mining Key Technology of Fully Mechanized Longwall Mining Face in Deep Inclined Seam of Tangshan Mine
唐山矿大倾角综采工作面开采关键技术
Application of Fully Mechanized Coal Mining Face Crossing over Rock Crosscut in Tucheng Mine
综采工作面跨石门开采在土城矿的应用
Feasibility Analysis on Upward Mining for Coal Mining Face of Qianjiaying Mine
钱家营矿采煤工作面上行开采可行性分析