| 天津地区地面沉降及其对地理环境的影响 |
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| 引用本文： | 王若柏,孙东平.天津地区地面沉降及其对地理环境的影响[J].地理学报,1994,49(4):317-323. |
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| 作者姓名： | 王若柏 孙东平 |
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| 作者单位： | 国家地震局第一地形变监测中心 |
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| 摘 要： | 本文应用现代精密水准资料，结合地质、地震资料对天津及邻近地区地面沉降的发展、演化状况进行了深入研究，从动态观点初步探讨了由于地面沉降所造成的地理环境条件恶化和灾害问题。
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| 关 键 词： | 地面沉降 区域地质 地理环境 天津 |
DYNAMICS OF GROUND SUBSIDENCE AND ITS EFFECTS ON GEOGEAPHICAL ENVIRONMENT IN THE TIANJIN AREA |
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| Wang Ruobai,Sun Dongping,Geng Shichang,Hang Yueping.DYNAMICS OF GROUND SUBSIDENCE AND ITS EFFECTS ON GEOGEAPHICAL ENVIRONMENT IN THE TIANJIN AREA[J].Acta Geographica Sinica,1994,49(4):317-323. |
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| Authors: | Wang Ruobai Sun Dongping Geng Shichang Hang Yueping |
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| Abstract: | Based on the data of precise repeated leveling from 60's to the late 80's and by using the uniform adjustment calculating method, the uniform initial points and the same network. the maps of crustal vertical deformation rate (1965 to 1975, 1975 to 1979, 1979 to 1983, 1983 to 1988) have been produced in Tianjin and its adjacent areas. Combing with the geological and seismological background, the features of ground subsidence and the dynamic of its development in this area have been studied.The results obtained show that the main reasons for ground subsidence and for increase of coastal disasters are overpumping of underground water, especially in the tectonic sinking areas like TianJin and its adjacent areas. The funnels of ground subsidence distributed in TianJin and its adjacent areas have been developed to a very critical extent, and a series of secondary disasters associated with ground subsidence should take place in the near future. such as sea inundation and flooding with strom surges. the siltation of river channels and flooding involved. deterioration of hydrogeological canditions etc. |
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| Keywords: | graund subsidence groundwater overpumping sea level rise Tianjin coastal plane |
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