safe coal pillar

Study on safe coal pillar design and sub-grade stability of freeway in unexploited coal zone;

高速公路壓煤區安全煤柱留設及其對路基穩定性的影響

On this basis,the height of "two zones"and the reasonable size of safety pillars were predicted.

在此基礎上,預計了"兩帶"高度,探討了安全煤巖柱合理尺寸,使開采上限提高了30 m煤柱,解放呆滯煤量73。

Determination of waterproof rock pillar height with the top coal caving under sea

海下綜放開采防水安全煤巖柱厚度的確定

The cause of house crack determined by security coal pillar of village.

房屋裂縫是否由煤礦采煤引起,主要是看采空區是否進入村莊保安煤柱。

Research about coal mine security management based on spatial data mining;

基于空間數據挖掘的煤礦安全管理的研究

This article analyzed the reasons for the frequency coal mine security accidents from objective and subjective separately in view of coal mine security situation in China,and proposed the countermeasures.

本文針對我國煤礦安全生產形勢,分別從客觀和主觀兩方面詳細地剖析了煤礦安全事故頻發的原因,并提出了對策,研究結果對煤礦安全生產具有一定的指導意義。

In this paper, consistency between the model of coal mine security and the model of fuzzy control is analyzed under the consistence of data input and data output.

在有輸入和輸出數據的前提下,分析了煤礦安全的模型與模糊控制模型的一致性;介紹了煤礦安全評價中檢查表法的基本概念及其在本次工作中的作用。

Determination of waterproof rock pillar height with the top coal caving under sea

海下綜放開采防水安全煤巖柱厚度的確定

Calculation and evaluation on the safe width of fault waterpro of coal (rock) pillar

斷層防水煤(巖)柱安全寬度的計算與評價

Research of Security Mining Technology for Coal-Pillar Below Railway Bridge;

鐵路橋下工業煤柱安全開采技術研究

The Main Problems Affecting Mine safety and Production in Coal Mine

煤礦安全生產中的幾個巖石力學問題

Study on Safe Mining of Island Coal and Roadway Maintenance Technology;

孤島煤柱安全開采及巷道維護技術研究

Research on Safety Effect of Limestone Water on Mining of Lower Seam Cluster in Liyan Coal Mine;

里彥礦灰巖水對下組煤安全開采影響的研究

Research of Security Eeploiting Technology for Coal Below Corrosion Moisture Rock;

溶蝕含水巖層下煤炭安全開采技術研究

Basic Research on Control of Surrounding Rock in Big Section Safety Mining in Steep Seams;

急斜煤層大段高安全開采圍巖控制基礎研究

The Surface Subsidence Observation Analysis and Research of Safely Underwater Mining

水體下安全采煤的地表巖移觀測分析研究

SUBSIDED COLUMN OF KARST IN SIIENNANCOAL-FIELD AMD ITS WATER FLOWING CHARACTERISTICS

沈南煤田巖溶陷落柱及其導水性特點

Study on Reasonable Width of Coal and Rock Pillar under Thick Aquiferous Loose Bed;

厚含水松散層下煤巖柱合理留設研究

Study on the Stability of Rock Surrounding Gateway with Different Coal-pillar Widths

煤柱寬度對巷道圍巖穩定性影響分析

Stability Analysis of Rock Pillar in the Uncovering Coal Process of Highway Tunnel Though Coal Seam

公路穿煤隧道揭煤施工過程中巖柱穩定性分析

Study on Influence of Limestone Water of TaiyuanGroup on Safety Mining No.10 Coal Seam and Determination of Water Bursting Sources in Liudian Coal Mine;

劉店煤礦太原組灰巖水對10煤層安全開采的影響及突水水源判別研究

Study on Influence of Limestone Water of Taiyuan Group on Safety Mining No.10 Coal Seam and Determination of Water Bursting Sources in Yangliu Coal Mine

楊柳煤礦太原組灰巖水對10煤層安全開采的影響及突水水源判別研究

Characteristics of Coal Pillar's Concentrated Load and Its Influence on Surrounding Rock Stress of Roadway

煤柱集中載荷特征及其對巷道圍巖應力的影響

Concentrate loading of pillar and its effect on the tunnel surrounding rock stress of differ location

煤柱集中載荷對不同錯距巷道圍巖應力的影響

Study on Extraction Security of No.3 Coal Seam in West Wing of Baoan Coalmine

保安煤礦西翼3煤層開采安全性研究