Study on safe coal pillar design and sub-grade stability of freeway in unexploited coal zone;
高速公路壓煤區(qū)安全煤柱留設(shè)及其對路基穩(wěn)定性的影響
Without other safety measures, some safety ore pillars have to be reserved to prevent the ground buildings and constructs and the main shafts from being damaged during underground mining.
礦床地下開采時,在沒有其他安全措施的情況下,不得不采用預(yù)留安全礦柱的方法,以保護地面建筑物、構(gòu)筑物和主要井巷免受因地下采礦而引起的破壞。
The driving technology with reservation safety rock pillar and secondary lane is applied in the rock roadway near outburst coal seam.
近突出煤層巖巷采用預(yù)留安全巖柱二次成巷掘進(jìn)技術(shù),可實現(xiàn)安全快速掘進(jìn),具有很好的經(jīng)濟和社會效益,對類似條件的巷道掘進(jìn)具有一定的指導(dǎo)意義。
On this basis,the height of "two zones"and the reasonable size of safety pillars were predicted.
在此基礎(chǔ)上,預(yù)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
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(yè)煤柱安全開采技術(shù)研究
The Main Problems Affecting Mine safety and Production in Coal Mine
煤礦安全生產(chǎn)中的幾個巖石力學(xué)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(shù)研究
Research on Safety Effect of Limestone Water on Mining of Lower Seam Cluster in Liyan Coal Mine;
里彥礦灰?guī)r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(shù)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(chǔ)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(dǎo)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(shè)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(wěn)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(wěn)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?guī)r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?guī)r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(yīng)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(yīng)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