Factures caused by deformation and destruction of bedrocks over coal seams can easily lead to water flooding (inrush) in mines, a threat to safety production. Fractures with high hydraulic conductivity are good watercourses as well as passages for inrush in mines and tunnels. An accurate height prediction of water flowing fractured zones is a key issue in today's mine water prevention and control. The theory of leveraging BP artificial neural network in height prediction of water flowing fractured zones is analysed and applied in Qianjiaying Mine as an example in this paper. Per the comparison with traditional calculation results, the BP artificial neural network better reflects the geological conditions of the research mine areas and produces more objective, accurate and reasonable results, which can be applied to predict the height of water flowing fractured zones.
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This paper summarizes the negative effects on geological environment caused by groundwater exploitation and its distribution. There are seven main types of the geological environment negative effects, which are generally as follows: (1) Constant decrease of groundwater level is mainly distributed in China (East Asia), India (South Asia), Tajikistan (Central Asia) and Saudi Arabia (West Asia); (2) land subsidence occurs mainly in eastern plains of East Asia and west Siberian Plain of North Asia; (3) seawater intrusion occurs mainly in China, Japan and South Korea in East Asia, Philippines and Indonesia in Southeast Asia, the Indian coastal areas in South Asia; (4) groundwater level decline caused by groundwater exploitation in oil fields; (5) mining collapse is mainly in 50° to 70° north latitude band; (6) the total area of karst collapse in China of East Asia is as much as 197.05 km2; and (7) ground fracture is mainly distributed in the North China Plain, Fenwei Plain and the Yangtze River Delta. Asia can be divided into 6 zones in terms of the geological environment negative effect caused by groundwater exploitation. According to analysis, with the increasing intensity of human activities, geological environment issues become more and more serious, therefore it is vital to control the human activities within the scope of 5×105 people/km2 to 9.9×105 people/km2 for the effective control of the size of the affected area by geological environment problems.
This study explains various modes that can be applied for protected area. It analyses the requirements for good governance of protected area. A study area (Kara Kara National Park) is selected for identifying key challenges for implementing good governance of protected area. The challenges of good governance of protected area were investigated in this paper. The last part is based on the results from the third section and explores the strategies for addressing these challenges.
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