New words and phrases delayed consolidation theories延迟固结理论 creep theories蠕变理论 continental shelf大陆架 surface catchment watersheds地表水流域
New words and phrases delayed consolidation theories 延迟固结理论 creep theories 蠕变理论 continental shelf 大陆架 surface catchment watersheds 地表水流域
3.Research and development on land subsidence 3.1.Theoretical modeling of land subsidence A number of engineering geological models have been developed to assess and predict land subsidence in China.The models can be divided into the following two categories: Category A:This is basically the releasing water pressure model consisting of water level model and soil layer compression model. Category B:This is the life gyration model directly including the relations between subsidence and time
3. Research and development on land subsidence 3.1. Theoretical modeling of land subsidence A number of engineering geological models have been developed to assess and predict land subsidence in China. The models can be divided into the following two categories: Category A: This is basically the releasing water pressure model consisting of water level model and soil layer compression model. Category B: This is the life gyration model directly including the relations between subsidence and time
3.Research and development on land subsidence 3.2.Assessment of economic loss due to subsidence At present,methods to evaluate loss due to land subsidence have gradually developed.There are three types of methods to calculate the economic loss due to land subsidence.They are the investigation-based statistic method,the statistic-based prediction method and the regression analysis method
3. Research and development on land subsidence 3.2. Assessment of economic loss due to subsidence At present, methods to evaluate loss due to land subsidence have gradually developed. There are three types of methods to calculate the economic loss due to land subsidence. They are the investigation-based statistic method, the statistic-based prediction method and the regression analysis method
3.Research and development on land subsidence The main evaluation contents include direct and indirect economic loss.Ikenhara (1995)noted that the ratio of the indirect economic loss over the direct economic loss is about 10.In Tianjin,the total economic loss was RMB$189.6 billion from 1959 to 1993.The direct loss was RMB$17.2 billion and the related loss was RMB$172.4 billion.In the areas of Suzhou,Wuxi and Changzhou,the economic loss due to land subsidence was also assessed
3. Research and development on land subsidence The main evaluation contents include direct and indirect economic loss. Ikenhara (1995) noted that the ratio of the indirect economic loss over the direct economic loss is about 10. In Tianjin, the total economic loss was RMB$189.6 billion from 1959 to 1993. The direct loss was RMB$17.2 billion and the related loss was RMB$172.4 billion. In the areas of Suzhou, Wuxi and Changzhou, the economic loss due to land subsidence was also assessed
3.Research and development on land subsidence In the three cities,the total economic loss is about RMB$3.3 billion per year.The direct economic loss is about RMB$300 million per year and the related economic loss is RMB$30 billion per year.The exact economic loss due to land subsidence in Shanghai is not known yet(Wang and Zuo,1993)
3. Research and development on land subsidence In the three cities, the total economic loss is about RMB$3.3 billion per year. The direct economic loss is about RMB$300 million per year and the related economic loss is RMB$30 billion per year. The exact economic loss due to land subsidence in Shanghai is not known yet (Wang and Zuo, 1993)