Results 41 to 50 of about 185 (80)
Shuitu Baochi Xuebao, 2003 矿区水土流失是一种典型的人为加速侵蚀,存在着明显不同于原地貌的侵蚀特征:井工开采引起的地表塌陷,使地表变形、坡度加大、侵蚀加重,对地下水质也造成污染;露天开采排出的大量松散堆积物,由于地表严重压实和非均匀沉降,促使径流大量汇集,引起崩塌、滑坡、泥石流等地质灾害,同时增加了入河泥沙量,造成河道淤积、行洪困难.本文论述了采矿塌陷地、煤矸石山、排土场的水土流失特征,采矿对新增入河泥沙的影响,探讨了国内外矿区水土流失的防治所采用的工程措施和生物措施、动态监测水土流失的模型,以及今后尚需研究的内容.
吕春娟, 白中科, 赵景逵
doaj
Synergistic benefit analysis of carbon sink capacity and biodiversity function of artificial ecosystems in mining reclamation sites [PDF]
Land reclamation in mining areas is an inevitable measure to accelerate the restoration of biodiversity, promote the transformation and development of mining areas, and realize the transformation of carbon sources into carbon sinks. There are few studies
Cong MEN +5 more
core +1 more source
Shuitu Baochi Xuebao, 2017 为揭示露天煤矿排土场复垦区不同植被类型水土保持效益，选取刺槐林地、榆树林地、混交林地（刺槐和榆树混交）、灌木林地（紫穗槐）和荒草地这5种典型复垦植被下的枯落物作为研究对象，采用室内浸水法对5种植被类型枯落物的持水特性进行研究。结果表明：5个样地的枯落物厚度、蓄积量均表现为：乔木林地＞灌木林地＞荒草地，枯落物厚度在0.80～1.64 cm之间，总蓄积量在0.72～7.51 t/hm2之间；枯落物最大持水量和有效拦蓄能力均表现为刺槐林地最大，枯落物最大持水率为145.58%～206.58%，最大持水量为13.
吕, 傅昕阳, 李叶鑫, 宋子岭
doaj
Feasibility analysis of lateral water interception curtain in loose aquifer during deep coal seam mining in Yushen mining area [PDF]
Yushen mining area is the main mining area of the coal base in northern Shaanxi at present. During the development of high-intensity coal resources, the problems of coal seam roof water disaster and water resource leakage are prominent.
Chunhu ZHAO +4 more
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Shuitu Baochi Xuebao, 2017 采用野外调查和室内综合分析，系统研究了露天煤矿排土场不同植被类型的枯落物特征、土壤物理性质、土壤渗透性能和蓄水能力变化，并采用主成分分析对各样地持水能力进行综合评价。结果表明：不同植被类型枯落物的厚度和蓄积量均差异显著（P乔木林地，乔木林地和灌木林地的土壤入渗能力显著高于荒草地（P荒草地。从排土场枯落物层和土壤层的持水能力角度，可选择乔木树种（刺槐）作为主要复垦植被。
李叶鑫, 吕, 刁立夫
doaj
Ecological protection coal mining technology system and engineering practice [PDF]
In view of the large-scale and efficient coal mining in ecologically fragile areas, which causes a large scope, long cycle and high intensity of ecological impacts, and the lack of a systematic technology that integrates the whole cycle of mining, source
Jie FANG +6 more
core +1 more source
Research on sediment reduction benefits of engineering measures on waste rock slope under different rainfall intensities [PDF]
The dump slope of open-pit coal mines is characterized by steep gradients, loose structure, and poor stability, leading to severe soil erosion under heavy rainfall.
Gang LYU +3 more
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Regulatory detection of edge engineering structures in unloading zones based on parallel perception [PDF]
The primary challenge encountered by unmanned technology during the unloading phase in open-pit mines is safety hazards, particularly concerning the stability and normative detection of engineering structures at the edges of unloading area.
Jianjian YANG +5 more
core +1 more source
Shuitu Baochi Xuebao, 2017 为揭示排土场复垦区不同土地利用类型土壤的水源涵养功能，采用野外实地双环入渗试验和室内理化分析方法，系统地研究了海州露天煤矿排土场复垦区不同土地利用类型（乔木林地、灌木林地、农用地、荒草地）土壤入渗特性及其影响因素。结果表明：不同土地利用类型下的土壤初始入渗率、稳定入渗率和累计入渗量均表现为乔木林地>灌木林地>农用地>荒草地；不同土地利用类型下土壤入渗过程的拟合优度存在差异，G-P综合模型、Kastiakov模型、Horton模型的平均拟合优度依次为0.926，0.908，0.905。G ...
吕 刚 +4 more
doaj
[Safety Analysis of Perioperative Period in Non-Small Cell Lung Cancer Patients with Comorbid Pneumoconiosis]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue Ban, 2022 Yuan Y +4 more
europepmc +1 more source