摘要
我国是世界海洋大国之一，海岸线长达１８０００ｋｍ，涉及１３个省、市、区，全国７０％以上的大中城市和５５％的国民生产值集中在沿海地区，受特殊自然地质环境和现代经济发展的强烈影响，２１世纪沿海城市将面临一系列地质灾害的严重挑战。包括：（１）区域地壳形变负向运动灾害作用；（２）海平面上升的潜在灾害作用；（３）地壳构造活动的相关灾害作用；（４）地面沉降灾害作用；（５）岩溶区城市地面塌陷灾害作用；（６）海咸水入侵灾害作用；（７）填、挖工程诱发的灾害作用；（８）水、岩（土）污染灾害作用；（９）滑坡、泥石流灾害作用；（１０）河口区洪淤与海岸蚀退灾害作用。在下个世纪中，正确认识和把握这些地质灾害的种类、发育规律、作用强度，将直接关系到２１世纪沿海城市经济可持续发展战略目标的实现。具体言之，正确认识和评价其灾害作用，对２１世纪沿海城市建设和发展具有重要意义。
China is a country with large area of ocean The length of Her Coastal line reaches 18,000 km along thirteen provinces,municipalities and autonomous regions More than 70 percent of the country is large and middle sized cities and about 55 percent of her gross national product concentrates in the area Strongly affected by natural geological environment and modern economic development,the coastal cities are facing many serious challenges of geological hazards,including: (1)Hazards of regional deformation and negative movement of the crust;(2) potential hazards due to rising of the sea level;(3)hazard relating to tectonic activity of the earth crust;(4) hazard of ground subsidence;(5) ground collapse hazard in cities of karst regions;(6)hazard of saline sea water invasion;(7)hazards caused by reclamation and excavation engineerings;(8)water and rock (or soil) pollution hazards;(9)land slide and debris flow hazards;(10)silting and erosion hazards in river mouth districts In the coming century,there is a close relationship between the realization of sustainable development of the coastal cities in the twenty first century and correct understanding the developing principles,affecting intensity of all kinds of the hazards mentioned above It is very important in the constructions of the coastal cities to correctly understand and assess the hazardous affects
出处
《中国地质灾害与防治学报》
CSCD
1998年第S1期124-130,共7页
The Chinese Journal of Geological Hazard and Control
关键词
沿海城市
地质灾害
可持续发展
coastal city geological hazard sustainable development
