Dimension design of coal pillar with weak plane in strip mining;
条带开采中含弱面的煤柱尺寸设计
Analysis on damaged width of coal pillar in strip extraction;
条带开采煤柱破坏宽度计算分析
Study on influence of excavation sequence on the stability of coal pillar under final highwall with auger mining;
到界边坡下螺旋钻机开采顺序对煤柱稳定性的影响研究
Study on the chain pillar stability of the developing entry in longwall top-coal mining;
综放开采采准巷道护巷煤柱稳定性研究
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
Confirmation of reasonable pillar's size in actual mining roadways;
回采巷道合理煤柱尺寸的确定
Analytical model of protective coal pillar design for vertical section method;
垂直剖面法保护煤柱设计的解析模型
Which is the concentrated expression of prediction model and its parameters,protective coal pillar designed method and its parameters.
在深部开采条件下,结合地表沉陷的特点,总结分析了预测与控制存在的主要问题,表现在其预测模型、参数以及保护煤柱的留设方法和参数等方面。
The new technology of waste-filling replacement mining on strip coal pillar;
利用矸石充填置换开采条带煤柱的新技术
Whether the strip coal pillar is stable or not is one of the key problems of strip-partial mining.
应用突变理论建立了条带煤柱突变破坏失稳的尖点突变模型,导出了条带煤柱破坏失稳的充要条件表达式。
Its success or failure hinges on the long-term stability of strip coal pillar.
条带开采是目前解决“三下”压煤的较为切合中国煤矿企业实际的方法之一 ,条带开采成败的关键是条带煤柱的长期稳定性。
pillar of ground
运输平巷上方的煤柱
Reinforcement Mechanism of Anchored Bolt for Coal Pillar and Analysis of Influence Factors of Pillar Strength
煤柱锚杆加固机理与煤柱强度影响因素分析
Second Mining under Isolated Pillar Left by Wedge-pillar Mining Method
刀柱复采跨隔离煤柱布置探索与实践
Study on the Reclimaning of Fault Waterproof Coal Pillar in Mafang Mine;
马坊煤矿断层防水煤柱开采回收研究
Theoretical determination of the section coal pillar's reserve-width in medium thick coal seam
中厚煤层区段煤柱留设宽度理论确定
Theory and practice of integrated pillarless coal production and methane extraction in multiseams of low permeability
低透气性煤层群无煤柱煤气共采理论与实践
Analysis on Stability of Coal Pillar in Goaf Area of No.11 Seam in Tangshangou Mine
唐山沟煤矿11号煤层采空区煤柱稳定性分析
Principal Technology Study on Pillor Mining under the System of Room and Pillor Mining;
房柱式开采体系煤柱回收关键技术研究
Research on Longwall Rigid Separating Pillar Mining Technology of Small Colliery in YSF Field;
榆神府矿区小煤矿长壁布置刚性隔离煤柱房柱式开采研究
Study on Optimization Design and Destruct Monitoring Character of Coal Pillar in Longwall Remaining Coal Pillar Support Mining;
长壁留煤柱支撑法开采煤柱优化设计及破坏的可监测性研究
Research on Reasonable Size of Steeply Dipping Seam Strip Coal Pillar under Village;
村庄下大倾角煤层条带煤柱合理尺寸研究
A 3D Numerical Analysis of F_2 Fault Waterproof Pillar in Tao Yuan Coal Mine;
桃园煤矿F_2断层防水煤柱留设的三维数值分析
Evaluation method for pillar stability during strip mining in multiple coal seams
多煤层条带开采煤柱稳定性评价方法研究
Research on Reasonable Dimension of Protective Pillar for Cross-cutin Steeply Inclined Coal Seam
急倾斜煤层石门保护煤柱合理尺寸研究
Failure Characteristic of Residual Coal Pillar and Its Influence on Downward Mining
残留煤柱破坏特征及其对下部煤层开采影响
Simulation Experiment of Section Coal Pillar Parameter of Hongqinghe Coal Mine
红庆河煤矿区段煤柱参数模拟实验研究
The discussion about waterproof mine columniationpillar width in Small coal mines bare area
小煤窑采空区留设防水煤柱合理宽度的探讨
Numerical Simulation of Anchored Bolt Supporting for Roadway in Small Coal Pillar with Large Inclined Angle
大倾角煤层小煤柱巷道锚杆支护数值模拟研究
