Dynamic control of working slope shape and optimization of advance speed in seasonally stripped open-pit coal mine [PDF]
, 2023 Due to the discontinuity of the stripping project in seasonal stripping open-pit coal mines, the untimely advance distance of the working slope is huge. In order to reduce the advance stripping and save the stripping distance, research was carried out on
Bo CAO +3 more
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Lateral curtain interception technology and water conservation effect in groundwater abundant mines of China [PDF]
, 2023 There are many types and numbers of mines in China, covering coal, metallurgy, non-ferrous metals, chemical industry and so on. Most of the mines use dewatering and drainage to control groundwater, and some of the water abundant mines have tens of ...
Hai WANG +3 more
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Influence characteristics of regional micrometeorology on macroscopic scale of external dump [PDF]
, 2023 To study the relationship of external dump of opencast coal mine impacting on surrounding micrometeorological factors, and then provide the foundation acknowledge for the ecological restoration in mining area, the airflow movement and water distribution ...
Chendong LIU +7 more
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Flexible magnetic suction impermeable membrane of vertical curtain water interception technology for strong seepage loose layer of coal mines [PDF]
, 2023 With abundant mineral resources, many types of mining industry and many mines, mining development in China has led to the decline of groundwater level around the mines, waste of water resources, water quality pollution, surface collapse, land degradation,
Hai WANG +6 more
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Research on mining plan of non-working high-level coal seam in open-pit mine with near-horizontal composite coal seam [PDF]
, 2023 In the extraction of subhorizontal multiple coal seams using open-pit mining in China, the problem of coal seam in the high wall is commonly existed, but studies usually focus on the lower coal seam mining problem only.
Bo CAO +5 more
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Shuitu Baochi Xuebao, 2023 表土回覆是露天煤矿排土场生态修复的关键步骤,覆土厚度直接影响植物生长和复垦成本,为研究露天煤矿排土场不同覆土厚度对土壤水分入渗及植物水分利用的影响,采用室内土柱模拟试验,设置10,20,30,40,50 cm共5个覆土厚度,分别进行垂直入渗试验和室内盆栽试验(玉米),并结合氢氧同位素稳定示踪技术,研究不同覆土厚度土壤入渗和玉米水分利用特征,筛选研究区排土场最佳覆土厚度。结果表明:覆土厚度为10~30 cm(27.05~33.02 mm/min)的初始入渗速率显著高于40~50 cm(21.59~24 ...
张雅楠, 吕刚
doaj +2 more sources
Stability Assessment of Hesigewula Open-pit Coal Mine Based on Geomorphic Information Entropy of Watershed System [PDF]
, 2023 [Objective] The stability evaluation of an open-pit mining area was carried out in order to provide technical support for landform remodeling, ecological environment restoration, and soil erosion monitoring in a mining area.
Li Wei +6 more
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Landform reshaping optimization of inner dump based on hydrological fusion in grassland open-pit coal mine [PDF]
, 2023 The landform of the inner dump in the grassland open-pit coal mine is affected by factors such as the shaping method and the amount of earthwork in the mining-dumping-reclaiming activities, and it faces ecological and environmental problems such as ...
Gensheng LI +4 more
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Parameter design of coal pillar in highwall mining under action of dynamic-static load [PDF]
, 2023 In view of the application of end slope shearer mining technology to recover a large amount of residual coal, the determination of reasonable width of supporting coal pillar is a key factor whether it can be safely and efficiently popularization and ...
Dong WANG +7 more
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Ecological Protection Effects Provided by Sand Barriers in a Grassland Mining Area [PDF]
, 2023 [Objective] The wind protection effectiveness of different sand barriers and their effects on surface soil particle size composition, soil nutrients and vegetation growth werer studied in order to provide a theoretical basis for the optimal selection of ...
Cong Longyu +5 more
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