Mining operations can usually lead to environmental deteriorations. Underground mining activities could cause an extensive decrease in groundwater level and thus a dramatic variation in soil moisture content（SMC）. I...Mining operations can usually lead to environmental deteriorations. Underground mining activities could cause an extensive decrease in groundwater level and thus a dramatic variation in soil moisture content（SMC）. In this study, the spatial and temporal variations of SMC from 2001 to 2015 at two spatial scales（i.e., the Shendong coal mining area and the Daliuta Coal Mine） were analyzed using an improved thermal inertia model with a long-term series of Landsat TM/OLI（TM=Thematic Mapper and OLI=Operational Land Imager） data. Our results show that at large spatial scale（the Shendong coal mining area）, underground mining activities had insignificant negative impacts on SMC and that at small spatial scale（the Daliuta Coal Mine）, underground mining activities had significant negative impacts on SMC. Trend analysis of SMC demonstrated that areas with decreasing trend of SMC were mainly distributed in the mined area, indicating that underground mining is a primary cause for the drying trend in the mining region in this arid environment.展开更多
Based on the sharp contradiction between the economic benefits and adverse ecological impact of coal development in China's west,this paper establishes an evaluation model for the synergetic eco-environmental deve...Based on the sharp contradiction between the economic benefits and adverse ecological impact of coal development in China's west,this paper establishes an evaluation model for the synergetic eco-environmental development in Shendong Coal Mining Area through using synergism of five laws and the fuzzy comprehensive evaluation method. The analysis on synergy between large-scale coal mining and the eco-environment protection in Shendong is also conducted,arriving at the conclusion that synergetics of Shendong 's eco-environment protection is"good". And thus,the result sheds light on the fact that while working to quench China's energy demand on its path towards a modernized large coal mine complex,Shendong,as part of Shenhua Group's mining operation,has applied innovative management concepts and models to improve eco-environment for harmony and win-win results between resource exploration and environmental protection.展开更多
According to the strategic goal of sustainable development,construction and management for the construction of Shendong mining area with ecological safety,the ecological restoration principle of ＂ control protects de...According to the strategic goal of sustainable development,construction and management for the construction of Shendong mining area with ecological safety,the ecological restoration principle of ＂ control protects development and development promotes control＂ for desertification prevention and control was adopted,and engineering measures,plant greening measures,and enclosure management and protection measures were taken to prevent and control desertification in the mining area based on careful detailed investigation and accurate planning and design in the early period. After 32 years,the desertification ecological landscape environment of the mining area has undergone a qualitative change,and the vegetation coverage has increased from 3%-8% to above 60% after the development. The former desertification land has become a modern green energy base that has produced 200 million tons of coal every year. The construction and management mode of an ecologically safe and modernized green coal mining area built by Shendong in the desertification region of northwestern China shows that taking appropriate comprehensive ecological restoration construction technology and management measures that integrate engineering,plants and enclosure management and protection is an effective technical and management paradigm for the construction of a modernized green large-scale coal mining area in China＇s arid and semi-arid regions.展开更多
为在神东矿区实施切顶卸压成巷技术,以哈拉沟煤矿12201运输巷为例,首先在巷道顶板施工切缝孔和爆破切缝,采用恒阻锚索对回采期间的留巷进行补强支护,并在回撤巷道稳定区域进行单体支护,同时对采空区侧巷帮进行喷浆,最终实现切顶卸压成...为在神东矿区实施切顶卸压成巷技术,以哈拉沟煤矿12201运输巷为例,首先在巷道顶板施工切缝孔和爆破切缝,采用恒阻锚索对回采期间的留巷进行补强支护,并在回撤巷道稳定区域进行单体支护,同时对采空区侧巷帮进行喷浆,最终实现切顶卸压成巷。结果表明:12201运输巷在切顶卸压成巷后,恒阻锚索受力最大为286.7 k N,侧向压力最大2.0 MPa,巷道成形良好,同时留巷改善了通风方式,实现了安全回采。对该技术在应用中进行了总结,切顶留巷技术适用于采高小于3 m以及顶板条件中等以上的综采工作面,并对存在的爆破切缝问题、支护等施工参数及方法进行了优化及改造,为切顶卸压成巷技术在神东矿区推广提供了借鉴。展开更多
基金supported by the National Natural Science Foundation of China (U1361214)the National Key Research and Development Program of China (2016YFC0501107)
文摘Mining operations can usually lead to environmental deteriorations. Underground mining activities could cause an extensive decrease in groundwater level and thus a dramatic variation in soil moisture content（SMC）. In this study, the spatial and temporal variations of SMC from 2001 to 2015 at two spatial scales（i.e., the Shendong coal mining area and the Daliuta Coal Mine） were analyzed using an improved thermal inertia model with a long-term series of Landsat TM/OLI（TM=Thematic Mapper and OLI=Operational Land Imager） data. Our results show that at large spatial scale（the Shendong coal mining area）, underground mining activities had insignificant negative impacts on SMC and that at small spatial scale（the Daliuta Coal Mine）, underground mining activities had significant negative impacts on SMC. Trend analysis of SMC demonstrated that areas with decreasing trend of SMC were mainly distributed in the mined area, indicating that underground mining is a primary cause for the drying trend in the mining region in this arid environment.
文摘Based on the sharp contradiction between the economic benefits and adverse ecological impact of coal development in China's west,this paper establishes an evaluation model for the synergetic eco-environmental development in Shendong Coal Mining Area through using synergism of five laws and the fuzzy comprehensive evaluation method. The analysis on synergy between large-scale coal mining and the eco-environment protection in Shendong is also conducted,arriving at the conclusion that synergetics of Shendong 's eco-environment protection is"good". And thus,the result sheds light on the fact that while working to quench China's energy demand on its path towards a modernized large coal mine complex,Shendong,as part of Shenhua Group's mining operation,has applied innovative management concepts and models to improve eco-environment for harmony and win-win results between resource exploration and environmental protection.
文摘According to the strategic goal of sustainable development,construction and management for the construction of Shendong mining area with ecological safety,the ecological restoration principle of ＂ control protects development and development promotes control＂ for desertification prevention and control was adopted,and engineering measures,plant greening measures,and enclosure management and protection measures were taken to prevent and control desertification in the mining area based on careful detailed investigation and accurate planning and design in the early period. After 32 years,the desertification ecological landscape environment of the mining area has undergone a qualitative change,and the vegetation coverage has increased from 3%-8% to above 60% after the development. The former desertification land has become a modern green energy base that has produced 200 million tons of coal every year. The construction and management mode of an ecologically safe and modernized green coal mining area built by Shendong in the desertification region of northwestern China shows that taking appropriate comprehensive ecological restoration construction technology and management measures that integrate engineering,plants and enclosure management and protection is an effective technical and management paradigm for the construction of a modernized green large-scale coal mining area in China＇s arid and semi-arid regions.
文摘为在神东矿区实施切顶卸压成巷技术,以哈拉沟煤矿12201运输巷为例,首先在巷道顶板施工切缝孔和爆破切缝,采用恒阻锚索对回采期间的留巷进行补强支护,并在回撤巷道稳定区域进行单体支护,同时对采空区侧巷帮进行喷浆,最终实现切顶卸压成巷。结果表明:12201运输巷在切顶卸压成巷后,恒阻锚索受力最大为286.7 k N,侧向压力最大2.0 MPa,巷道成形良好,同时留巷改善了通风方式,实现了安全回采。对该技术在应用中进行了总结,切顶留巷技术适用于采高小于3 m以及顶板条件中等以上的综采工作面,并对存在的爆破切缝问题、支护等施工参数及方法进行了优化及改造,为切顶卸压成巷技术在神东矿区推广提供了借鉴。
