longwall

IMPROVEMENT OF TOP SLICING MINING TECHNIQUE ADOPTED FOR NO. 715 URANIUM MINE ( 3) longwall pillar working with caving and roof propping with hydraulic props.

七一五矿分层崩落法回采技术的改进③液压支柱护顶长壁式崩落法回采水平矿柱。

Study on the Basic Theory of Longwall Top Coal Caving System

关于长壁放顶煤开采基础理论的研究

Based on the structural characteristics of floor in the longwall face, the structural model of the key stratum ( KS) in floor is established.

根据采场底板岩体结构特征，建立了底板岩体的关键层（KS）结构模型。

Study on the design method of strip grouting for old longwall mining goaf

长壁开采老采空区带状注浆设计方法研究

Application of the fully mechanized longwall sub-level caving technology in the large-angle angular surface mining

综放技术在大倾角俯斜开采中的应用

Today chock-shield support is extensively used to control the superjacent strata of longwall face.

目前,大量的长壁工作面采用支撑 —— 掩护式支架控制上覆岩层.

Pilot study to mining above the longwall Goaf Hydrops of Coal Mine

长壁采空区上覆煤层蹬空开采的初步研究

Research and development on goaf model test system for fully mechanized caving longwall face

综放长壁开采采空区模型试验系统研制

a young and beautiful girl was leaning with her back against the wainscot. longwall mining along the dip of the unstable coal seam and strata control

一个年轻美貌的姑娘正斜靠在壁板上。不稳定煤层倾斜长壁开采及矿压控制

Analysis and technological measures for longwall topple mining process at the big inclined angle seam

大倾角煤层倾斜长壁仰斜开采工艺分析及技术措施

Analysis on bending failure of initial weighting of main roof in longwall face

长壁工作面老顶初次来压的弯曲失稳解析

Application of Remote Controlled Face End Hydraulic Powered Shield Support to Rapid Removing of Fully Mechanized Longwall Mining Face Equipment

遥控式端头掩护支架在综采面快速回撤中应用

Analysis of Developing Trend to Longwall Mining Technology of world

对国外长壁开采技术发展趋势的分析

Therefore its successful selection and application are the prerequisite for successful longwall mining.

是以正确的选择和应用液压支架是长壁工作面采煤乐成的先决前提.

The Development of Longwall Technology for Thick Coalseam Mining in China

中国长壁开采技术现状及其在厚煤层中的应用

formation and application of the front abutment pressure on longwall face

论采场前方支承压力的形成及应用

Numeric study of damage for the surrounding bed in longwall mining

长壁回采围岩破损规律的数值模拟研究

As increasing of mining depth, advancing of outputs of a single working face and changing of geological conditions, the disallowed gas concentration appears frequently at longwall top coal caving face in Lu' an mining district, blocks the farther advancing of producing level.

随着采深加大、工作面单产的提高及地质条件的变化，潞安矿区综放工作面瓦斯超限频繁，严重制约了综放集约化生产水平进一步提高。

A new type self-walking advance timbering support set is adopted in longwall coal mining face of Halagou Coal Mine, Shendong Coal District by Shenhua Group Co.

神华集团神东矿区哈拉沟煤矿在长壁工作面回风巷中采用了一种新型自移式超前支护支架组。

Analysis on Caving Order and Oblique Longwall Retreating with Underhand Feed Model

伪倾斜长壁俯采进刀方式与放顶煤顺序分析

Characteristics and Prevention Technology of Spontaneous Combustion in Goaf Area of False Dip Longwall Mining Face with Flexible Hydraulic Powered Shield Support

伪倾斜柔性掩护支架工作面采空区自然发火特点及防治技术

Its successful selection and application are the prerequisite for successful longwall mining.

正确、合理地选择液压支架架型是长壁工作面采煤成功的前提和关键.

Modern longwall mining employs hydraulic powered supports at the face area.

现代长壁工作面采煤已在挖掘区使用液压支架.

Rock pressure feature of stope of longwall caving method along dip in fully mechanized mining

倾斜长壁综采放顶煤采场矿压特点综放采场瓦斯运移的计算机模拟

Combined Support System with Truss Bolt in New Large Cross-Section Longwall Coalface Development

大断面开切眼桁架锚杆组合支护

Relative location set in gas drainage gateway along strike roof of longwall mining face

回采工作面走向顶板瓦斯抽放巷相对位置确定

High Production and High Efficiency Longwall Mining in Thick Seam

中厚煤层长壁综采高产高效开采

Adaptability Analysis of Powered Support in Longwall Top-coal Caving Minging of Steep Seam

急斜煤层综放开采中液压支架适应性分析

The roof slice longwall method increases the work of laying false roof for next slice.

长壁采煤法的采煤工艺具有多重特点:顶分层采煤增加了要为下分层填设假顶的工作.

The new technique increases the efficiency of longwall panel mining.

这种新技术提高了长壁盘区采矿的效率.