By applying theoretical calculation and computerized numerical simulation,this article carries out a study on the slicing mining technology used in extra coal seams from the aspects of determination of width of coal pillars in the upper and lower seams,arrangement of slice drifts,arrangement of coal mining equipment withdrawal roadways and the mining methods used in the lower seam,etc.
综合运用理论计算及计算机数值模拟的方法,从上、下分层煤柱宽度确定,分层巷道布置方案,设备撤出巷布置方案和下分层开采方法等方面对特厚煤层分层开采技术进行了研究。
The article analyses specifications of the lower slicing roadways and the supports breakdown causes for the thick coal seams in the Xinzhou Mine of Datong coal mines group Co.
通过对大同煤矿集团公司忻州窑矿厚煤层下分层回采巷道破坏特征、支架损坏原因的分析,提出了下分层巷道安全掘进和回采超前管理的对策。
Study on the affecting factors of rational layout location of gate-road in the bottom slicing;
下分层回采巷道合理布置位置影响因素研究
The following conclusions can be drawn: stress distribution curves in the bottom slicing,and failure process and displacement characteristics of side coal-wall of gate-road in the bottom slicing.
利用非线性有限元数值计算方法,模拟了上分层回采巷道开挖、上分层回采及下分层回采巷道开挖三个过程,经过分析得出了下分层煤体内应力分布曲线、内错式下分层回采巷道两帮煤体破坏过程及两帮位移分布特征;室内相似材料模拟试验结果显示了底板岩层竖直应力分布规律及采空区上覆岩层破坏形式。
Rational Coal Pillar Dimension and Optimization of Sub-level Roadway Layout for Huating Colliery
华亭煤矿合理煤柱尺寸确定及分层巷道布置优化
One-side aisle layered handling side-by-side storage car parking system
单侧巷道分层搬运滚道并排存放型停车系统
The Crustal Stress Distribution Law and the Roadway Stability Analysis Near the Fault
断层附近地应力分布规律及巷道稳定性分析
The Viscoelasticity Analysis of the Roadway Within F_2 Fault Zone at Tao Yuan Mine;
桃园煤矿F_2断层带内巷道的粘弹性分析
Research on Distortion Mechanism of the Gateway and Rock Bolting Measure of in High-pitched Seam;
大倾角煤层回采巷道破坏机理及锚杆支护分析
Very Thick Coal Roadway Roof Analysis and Design Support System
极厚煤层巷道顶板分析及支护方案设计研究
The Roof Control Technology of Roadway under the Gob Clamps Gangue of Slicing Coal
空区夹矸下煤分层回采巷道围岩控制技术
Stability Analysis of Mining Gateway under Seam Group Mining with Closed Distance Between Seams in Cuijiazhai Mine
崔家寨煤矿近距离煤层群开采巷道稳定性分析
A Research in Drift Layout of Mechanized Coal Face Panels in Gentle Dip,selfcombustible Thick Seams by Slice Mining
缓倾斜易自燃厚煤层分层开采综采采区巷道布置的探讨
Study on Reasons of Rock Burst in Roadway and Prevention Technology of Steeply-inclined and Extremely Thick Coal Seam with Horizontally Slicing Way
急倾斜特厚煤层水平分层开采巷道冲击地压成因与防治技术研究
Study of Working Surface Tunnel Supports and Protections based on Prevention Rockburst Anout Slicing of Ectra-thick Coal Seam
基于防冲特厚煤层分层开采工作面巷道支护研究
Two-dimension finite element analysis of the function of bolts supporting on layered rock tunnel
锚杆支护对层状岩层巷道作用的二维有限元分析
Study on Stress Distribution of Floor after Mining and Extraction Roadway Arrangement for Close Multiple Coal Seams
近距离煤层群采动后底板应力分布及回采巷道布置方式研究
Study on Roadway Supporting Technology of Full-mechanized Sublevel-Top-Caving Mining for Steep Seam
急倾斜煤层水平分段综放开采巷道支护技术研究
Stability Analysis of“T”-type Cross of Eastern Rock Roadway in Jinshandian Iron Mine and the Countermeasures
金山店铁矿东区岩层巷道“T”型交岔口稳定性分析与对策研究
The Destroy Mechanical Analysis of Tunnel with Stratified Roof
基于弹性薄板理论的巷道层状顶板破坏的能量法分析
Monitoring and Analysis of Loose Zone in Steep Extra-thick Coal Seam under Complicated Geological Conditions
复杂地质条件下急斜特厚煤层巷道松动圈监测分析
The Optimizing Design of Bolting Support Multi-coal Seams and Little Intervals Roadway;
近距离煤层群巷道锚杆支护优化设计