我国东南沿海经济开放区主要分布在花岗岩风化壳上,该区域残积土厚度较大,其中在闽粤沿海地区一般为20-35m。福建省地处东南沿海,位于亚热带东南季风气候区,中低山和丘陵占全省面积的80%,气候湿热,台风暴雨频繁,降雨集中,岩土渗流强度大,丘陵山地风化与侵蚀作用强烈,导致花岗岩残积土广泛覆盖,其中50%分布在闽东南丘陵、沿海平原等地，其中厦门地区最厚达50-70m。因此，花岗岩残积土在东南部省份普遍存在,工程中所遇的山地、丘陵、剥蚀准平原上都分布着残积土，是大部分工程建设的地基基础和地质环境重要介质。福建省正在实施海峡西岸经济区发展战略,填海造地、高速公路和铁路、海港码头、福州地铁、厦门地铁等岩土...China's southeast coastal economic open zone are mainly distributed on the granite weathering crust and has a larger residual soil thickness which generally reachs 20-35m in coastal area of Fujian and Guangdong. Fujian Province, located on the Southeast coast and in the subtropical monsoon climate zone, has 80% area of the province for low mountains and hills. Granite residual soils are widely dis...学位：工程硕士院系专业：建筑与土木工程学院_建筑与土木工程学号：2532011115174
