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Effect of longwall length on mechanical characteristics of surrounding rock stress shell in mining face;

采场围岩应力壳力学特征的工作面长度效应

Numerical simulation-FLAC~(3D) and equivalent material simulation were carried out to analyze the distribution of surrounding rock stress with different thick coal seams based on engineering geology and exploitation technology of 1151(3) fully mechanized top-coal caving(FMTC) face in Xieqiao colliery.

以谢桥矿1151(3)综放工作面工程地质和开采技术条件为背景,应用实验室相似材料模拟和计算机数值模拟(FLAC3D),对不同煤层厚度采场围岩应力分布规律进行系统的分析和研究,获得了采场围岩宏观应力壳力学特点和变化规律,即随开采煤厚的增大,应力壳的几何高度增加,壳基应力降低,分布范围增大且离工作面煤壁越远;揭示了煤层厚度对该力学特征的影响和综放与综采工作面及围岩宏观应力壳力学特征的差异,也正是综放工作面矿压显现不同于综采工作面的根本所在。

Through the theoretical analysis and the computer numerical simulation of 9coals stope floor in Yonggu Coal Mine,the destroy depth,the vertical stress distribution,the plastic distributing characteristic and the vertical displacement rule in the mining process are obtained.

通过对永固煤矿9煤采场底板的理论分析和计算机数值模拟,得出了开采过程中采场底板破坏深度、垂直应力分布、塑性区分布特点及垂直位移规律;针对该条件下的底板破坏和突水特点,提出了有效的防突水技术措施和对策,对煤矿安全生产具有一定的指导意义。

Discussion on the declination mechanism and the control technology of stope roof;

采场顶板冒落机理及控顶技术探讨

Some experiences on stope roof management in metal underground mine are introduced.

介绍金属地下矿山采场顶板管理的几点经验。

Collapse of stope roof, is one of disasters occuring at underground mines.

矿山采场顶板冒落是地下矿山开采中常见的灾害。

Surrounding Rock Control Theory and Application Study of the Coal Face with Greater Mining Height;

大采高采场围岩控制理论及应用研究

STABILITY PREDICTING AND CONTROLLING OF SURROUNDING ROCK IN LONGWALL STOPE USING NE URAL NETWORKS

采场围岩稳定性的神经网络预测控制

Numerical Analysis of the Surrounding Rock Mass Stability in Dachang Tongking Tin Mine

大厂铜坑矿细脉带采场围岩稳定性的数值分析

The Stress Control Method and Its Application in Surroundding Stata Control in Stope;

应力控制方法及其在采场围岩控制中的应用

Numerical Simulation Study on Distribution Rules of Surrounding Rock Stress of a Mine

某矿山采场围岩应力分布规律的数值模拟研究

Stope wall rock activity law of long-wall full-mechanized caving mining on strike of steep dipping seam

大倾角煤层长壁综放采场围岩活动规律

Characteristics of Surrounding Rock and Support Design Procedures in Working Faces of Strong Roof and High Ground Pressure in Deep Mines;

深井高地压坚硬顶板采场围岩特性与支护设计方法

The Measurement and Analysis of Macroscopic Deformation Rules for Wall Rock of Stope Drift

采场巷道围岩变形宏观规律的监测和分析

Study on the Stress Field and Movement Laws of Overlying Strata in Gently Inclined Multi Coal Seams Mining;

缓倾斜多煤层开采围岩应力场及岩层运移规律研究

NUMERICAL SIMULATION OF ROCK DEFORMATION AND SEEPAGE FIELD WITH A FULLY-WATER KARSTIC COLLAPSE COLUMN UNDER MINING INFLUENCE

采动影响下强充水型隐伏岩溶陷落柱围岩变形与渗流场数值模拟

Study on the Classification and Control of the Surrounding Rocks at Stope and Roadway in Xiadian Gold Mine;

夏甸金矿采场及巷道围岩稳定性分类与控制研究

Studying on Mining of Spanning the West Main Entry and West Main Intake of -650m Level of Wennan Coal Mine;

大采深复杂围 岩双大巷跨采技术研究

Research on Movement Characteristic of Surrounding Rock in Full-mechanized Mining Face with Large Mining Height

大采高综采工作面围岩活动特征研究

Surrounding Rock Controlling Technology and Practice of Large Mining-height Mining Face with Hard Roof and Hard Coal

“两硬”大采高围岩控制技术及开采实践

Surrounding Rock Control Study of the Coal Entry with Greater Mining-Height;

大采高综采工作面回采巷道围岩控制技术研究

Relationship between Height of "Three Zones" and Lithology in Overlying Strata in Mining Yard

采场上覆岩层“三带”高度与岩性的关系

Research on Surrounding Rock Stability Forecasting of Mined-out Area Based on SVM;

基于SVM的采空区围岩稳定性预测研究

Study on the Stability of Wall Rock and Control Technology on Underground Mining

地下开采围岩稳定性及控制技术研究