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- W2375363441 abstract "As time goes on, the resource of most mining industry cities in our country will be exhausted or partly exhausted. And a large number of new derived calamities will occur in these mining industry cities during the course of resource drying up. Firstly, the paper introduces the main types and phenomena of derived calamities:long-term mining activities have sevevely changed the structure of resource-exhausted rock strata, and its ability to resist earthquake is weakened; a large number of solid waste that mining left over not only spoil more cultivated land, but also cause water resource and air pollution; moreover, the resource-exhausted city has large area of subsidence basin on the ground and large volume of goaves under ground that may cause the severe water resource calamity. And then, the authors analyze the domestic and international current research situation and trend about derived calamities of mining industry cities. According to the calamity phenomenon, this paper discusses the principle of various complicated environments, including stratum configuration, water and air circulatory system, adjustment of ground stress field, ecosystem, etc, coupled to cause calamities. Finally, several scientifice and technical difficult problems about derived calamities are put forward. These problems include:the establishing of huge system model to study the evolving process of derived calamity; the evolving process of mining stratum structure under coupled various circumstances; the dynamic evolving principle of ground surface and underground water system; the pollution, diffusion and transfer rules of groundwater; the harmful air generation mechanism in the abandoned mine, and so on. All those problems have the characters of nonlinear, randomicity and complexity. To provide the theoritic foundation for preventing the derived calamities and protecting the environment, those problems should be studied thoroughly." @default.
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- W2375363441 date "2004-01-01" @default.
- W2375363441 modified "2023-09-25" @default.
- W2375363441 title "Discussion on the problems of derived calamities in the resource-exhausted cities" @default.
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