With the deepening of the national urban and rural development strategy and the development of urban and rural integration, all levels of government are committed to narrowing the gap between rural and urban subsisten...With the deepening of the national urban and rural development strategy and the development of urban and rural integration, all levels of government are committed to narrowing the gap between rural and urban subsistence allowances. However, the inherent urban and rural differences and path dependence determines the integration of urban and rural low-cost integration is far from the standard can be achieved, the institutional environment and the operating environment are not in the same starting line of the facts, determines the ＂integration＂ will need to go through a long period of time Time of urban and rural development can be gradually achieved. At present, China＇s widespread implementation of the distinction between urban and rural residents minimum riving security system, not only difficult to play its due security ftmction, but further exacerbated the vicious cycle of dual society, the economic and social development is extremely unfavorable.展开更多
Pingxiang Mining Area in Jiangxi Province is one of the major coal-producing areas and is prone to serious coal and gas outburst, therefore, it is of significance to research on gas geological features and its control...Pingxiang Mining Area in Jiangxi Province is one of the major coal-producing areas and is prone to serious coal and gas outburst, therefore, it is of significance to research on gas geological features and its controlling factors. Based on the analysis of gas data collected from geological exploration and coal mining, the research reveals that the features of gas geology vary significantly between west part and east part of Pingxiang Mining Area, and it is characterized by high gas mines with se- rious coal and gas outburst in the west part and low gas mines with no coal and gas outburst in the east part. The main controlling factors to gas geology are discussed, and the great difference of gas geology between west part and east part is the result of comprehensive effect by geological factors. Concerning the gas generation, the coal rank in the west part is higher than that in the east part, which is favorable to generate more gas in the west part than in the east part. Concerning the gas preservation, the structures are characterized by gliding nappe in the west part and by tectonic window in the east part, the surrounding rocks are characterized by poor permeability in the west part and comparatively good permeability in the east part, and the characteristics of coal rank and coal body structure are favorable to gas preservation in the west part and favorable to gas emission in the east part.展开更多
文摘With the deepening of the national urban and rural development strategy and the development of urban and rural integration, all levels of government are committed to narrowing the gap between rural and urban subsistence allowances. However, the inherent urban and rural differences and path dependence determines the integration of urban and rural low-cost integration is far from the standard can be achieved, the institutional environment and the operating environment are not in the same starting line of the facts, determines the ＂integration＂ will need to go through a long period of time Time of urban and rural development can be gradually achieved. At present, China＇s widespread implementation of the distinction between urban and rural residents minimum riving security system, not only difficult to play its due security ftmction, but further exacerbated the vicious cycle of dual society, the economic and social development is extremely unfavorable.
基金Supported by the National Natural Science Foundation of China （41172138） the Special Fund Project of Jiangxi Energy Bureau （20100730） Acknowledgments The authors wish to thank Professor Tang Xiuyi from Anhui University of Science and Technology for his constructive advice. The authors also express their gratitude to the technical personnel from Jiangxi Exploration Institute of Coalfield Geology, Jiangxi Coal Group Corporation, for their kind help.
文摘Pingxiang Mining Area in Jiangxi Province is one of the major coal-producing areas and is prone to serious coal and gas outburst, therefore, it is of significance to research on gas geological features and its controlling factors. Based on the analysis of gas data collected from geological exploration and coal mining, the research reveals that the features of gas geology vary significantly between west part and east part of Pingxiang Mining Area, and it is characterized by high gas mines with se- rious coal and gas outburst in the west part and low gas mines with no coal and gas outburst in the east part. The main controlling factors to gas geology are discussed, and the great difference of gas geology between west part and east part is the result of comprehensive effect by geological factors. Concerning the gas generation, the coal rank in the west part is higher than that in the east part, which is favorable to generate more gas in the west part than in the east part. Concerning the gas preservation, the structures are characterized by gliding nappe in the west part and by tectonic window in the east part, the surrounding rocks are characterized by poor permeability in the west part and comparatively good permeability in the east part, and the characteristics of coal rank and coal body structure are favorable to gas preservation in the west part and favorable to gas emission in the east part.
