With the upgrading of modern mining technology, for the construction of water conservancy projects, the mining planning of the comprehensive material yard has a certain impact on the investment benefit of earth and ro...With the upgrading of modern mining technology, for the construction of water conservancy projects, the mining planning of the comprehensive material yard has a certain impact on the investment benefit of earth and rock dam. The relevant technical personnel need to plan the project scientifically and reasonably, and the project investment and project quality will be designed to require strict control. Based on this, this paper first expounds the selection principle of comprehensive material site, secondly, the comprehensive material site verification and mining planning are analyzed, and finally, from three aspects of investment mining planning, mining mode and operation scheme to explore the impact of comprehensive material site mining planning on earth-rock dam investment, for the reference of relevant personnel.展开更多
Western Mining announced in the evening of December 13 that the company’s Board of Directors approved the Proposal for Further Investing in the Company’s Subsidiary Yulong Copper and agreed that the company,along wi...Western Mining announced in the evening of December 13 that the company’s Board of Directors approved the Proposal for Further Investing in the Company’s Subsidiary Yulong Copper and agreed that the company,along with Yulong Copper’s shareholders Zijin Mining and Changdu Investment will make an additional investment in the same equity展开更多
Large scale underground mining of coal resources in China using longwall mining has resulted in ecological and environment problems, including surface subsidence that is considered serious due to competing interests o...Large scale underground mining of coal resources in China using longwall mining has resulted in ecological and environment problems, including surface subsidence that is considered serious due to competing interests of prime agricultural lands, food security, and regional economic development. The subsided lands must be rehabilitated soon after mining to be agriculturally productive to minimize loss of farmland. Similarly, precious water resources must also be managed during and after mining to protect this natural resource. Toward these goals, the concept of ＂Concurrent mining and subsidence reclamation （CMR）＂ was proposed by Professor Hu of the China University of Mining and Technology, Beijing （CUMTB）. Over the last two decades CMR concepts have evolved and successfully applied in the field in different parts of China. This innovative technology has increased available farmland during the mining process, and provided better land protection and food security in mining areas even with high groundwater table. The technology has been used in 5 of the 14 large coal bases in China. This paper describes the technology concepts, design and guiding principles for planning with two case studies from different regions to enhance its application both in China and in other countries.展开更多
Planning and production optimization within multiple mines or several work sites （entities） mining systems by using fuzzy linear programming （LP） was studied. LP is the most commonly used operations research metho...Planning and production optimization within multiple mines or several work sites （entities） mining systems by using fuzzy linear programming （LP） was studied. LP is the most commonly used operations research methods in mining engineering. After the introductory review of properties and limitations of applying LP, short reviews of the general settings of deterministic and fuzzy LP models are presented. With the purpose of comparative analysis, the application of both LP models is presented using the example of the Bauxite Basin Niksic with five mines. After the assessment, LP is an efficient mathematical modeling tool in production planning and solving many other single-criteria optimization problems of mining engineering. After the comparison of advantages and deficiencies of both deterministic and fuzzy LP models, the conclusion presents benefits of the fuzzy LP model but is also stating that seeking the optimal plan of production means to accomplish the overall analysis that will encompass the LP model approaches.展开更多
The National Mineral Resources Planning(2016-2020)issued by the Ministry of Land and Resources specifies national planning of 9copper mining area across the country.1.Baijiazuizi Copper Nickel Mine The Baijiazuizi cop...The National Mineral Resources Planning(2016-2020)issued by the Ministry of Land and Resources specifies national planning of 9copper mining area across the country.1.Baijiazuizi Copper Nickel Mine The Baijiazuizi copper nickel mining area is a super-large copper nickel deposit in Jinchang City with total proven reserves of 3.展开更多
文摘With the upgrading of modern mining technology, for the construction of water conservancy projects, the mining planning of the comprehensive material yard has a certain impact on the investment benefit of earth and rock dam. The relevant technical personnel need to plan the project scientifically and reasonably, and the project investment and project quality will be designed to require strict control. Based on this, this paper first expounds the selection principle of comprehensive material site, secondly, the comprehensive material site verification and mining planning are analyzed, and finally, from three aspects of investment mining planning, mining mode and operation scheme to explore the impact of comprehensive material site mining planning on earth-rock dam investment, for the reference of relevant personnel.
文摘Western Mining announced in the evening of December 13 that the company’s Board of Directors approved the Proposal for Further Investing in the Company’s Subsidiary Yulong Copper and agreed that the company,along with Yulong Copper’s shareholders Zijin Mining and Changdu Investment will make an additional investment in the same equity
文摘Large scale underground mining of coal resources in China using longwall mining has resulted in ecological and environment problems, including surface subsidence that is considered serious due to competing interests of prime agricultural lands, food security, and regional economic development. The subsided lands must be rehabilitated soon after mining to be agriculturally productive to minimize loss of farmland. Similarly, precious water resources must also be managed during and after mining to protect this natural resource. Toward these goals, the concept of ＂Concurrent mining and subsidence reclamation （CMR）＂ was proposed by Professor Hu of the China University of Mining and Technology, Beijing （CUMTB）. Over the last two decades CMR concepts have evolved and successfully applied in the field in different parts of China. This innovative technology has increased available farmland during the mining process, and provided better land protection and food security in mining areas even with high groundwater table. The technology has been used in 5 of the 14 large coal bases in China. This paper describes the technology concepts, design and guiding principles for planning with two case studies from different regions to enhance its application both in China and in other countries.
文摘Planning and production optimization within multiple mines or several work sites （entities） mining systems by using fuzzy linear programming （LP） was studied. LP is the most commonly used operations research methods in mining engineering. After the introductory review of properties and limitations of applying LP, short reviews of the general settings of deterministic and fuzzy LP models are presented. With the purpose of comparative analysis, the application of both LP models is presented using the example of the Bauxite Basin Niksic with five mines. After the assessment, LP is an efficient mathematical modeling tool in production planning and solving many other single-criteria optimization problems of mining engineering. After the comparison of advantages and deficiencies of both deterministic and fuzzy LP models, the conclusion presents benefits of the fuzzy LP model but is also stating that seeking the optimal plan of production means to accomplish the overall analysis that will encompass the LP model approaches.
文摘The National Mineral Resources Planning(2016-2020)issued by the Ministry of Land and Resources specifies national planning of 9copper mining area across the country.1.Baijiazuizi Copper Nickel Mine The Baijiazuizi copper nickel mining area is a super-large copper nickel deposit in Jinchang City with total proven reserves of 3.
