advance entry

Aiming at the abnormal strata behavior in the advance entry of 1303 fully-mechanized working face in Xinglongzhuang coal mine,the movement rule,characteristic,step distance of fracturing,position and mode of fracturing of the overlying strata in mining process is analyzed by using the key strata theory.

针对兴隆庄煤矿一采区1303综放工作面超前平巷发生奇异压力的现象,采用关键层理论对在采动过程中的上覆岩层运动规律进行了详细的力学分析,研究了它们的运动特征、破断步距、断裂位置、断裂方式以及对工作面及其超前平巷的来压规律,对比分析了该工作面矿压实测数据与理论研究成果。

Study on Roadway Bolt-Mesh Supporting Technique in High Angle Fully Mechanized Caving Face of Wangjiashan Colliery;

王家山矿大倾角综放工作面平巷锚网支护技术研究

advance workings

长壁前进式全面开采法;超前巷道;前进式开采面

Study on Reflected-Wave Tunnel Seismic Prediction;

反射波法隧道、井巷地震超前预报研究

A New Design for Preceding Support of the Hanging and Striding Pattern on Laneway Roof

掘进巷道悬挂式迈步超前支架的方案设计

Study on the Mechanism and Technology of Advanced Detection with Transient Electromagnetic Method for Roadway Drivage Face;

巷道掘进工作面瞬变电磁超前探测机理与技术研究

Testing Research of Laneway Wall Rock Stress Released by Advanced Bore Decompression Explosion Technique

超前钻孔卸压爆破技术释放巷道围岩应力试验研究

Technology of Supporting Super High Roadway in Large-height Mining Face

大采高工作面超高巷道掘进支护技术

I took a step closer and asked, "Have you always lived there?"

便赶近一步道：“你从前就在马头巷住吗？”

The Model and Simulation of UWB Based on MB-OFDM in Coal Mine Underground

基于多频带OFDM的矿井巷道超宽带无线通信建模

Application of High Water Content and Quick Setting Material to Ultra High Roof Failing Control of Mine Gateway

高水速凝材料在超高冒顶巷道治理中的应用

Prospect of roadway arrangement reform under the condition of thick seam with large dip angle

大倾角厚煤层条件下巷道布置改革的前景

SYNTHETIC GEOLOGICAL PREDICTION AHEAD OF THE CONSTRUCTION OF COAL TUNNELS UNDER THE CONDITION OF SHATTERED WALL ROCK

破碎围岩条件下井巷工程综合超前地质预报实践

Research on the UHF Radio Wave Propagation and Location Algorithms in Mine Tunnels;

井下巷道超高频无线电波传播及定位算法的研究

The storage situation of coal and gas, and the actual mining road arrangement in Qianling Coal Mine are introduced.

介绍了前岭煤矿的煤层及瓦斯的赋存情况,回采巷道的布置情况。

The tunnels connecting them, usually at right angles, are crosscuts.

连接平巷、一般与平巷成直角的巷道称为石门。

The end of a gallery or drift.

水平巷道或小平巷的一端

A gallery or drift in a mine.

矿井中的水平巷道或小平巷

The protection of tamped mud wall in the laneway construction of “Three Lanes and Seven Alleys”

“三坊七巷”巷道施工期间夯土墙保护

Bolt Roadway Combined Support Technology in Large Section Coal Drift

大断面煤巷全锚杆巷道联合支护技术