福建福安下白石特大桥海上岩土勘察方法  

On Engineering Geologic Exploration of the Xiabaishi Outsize Bridge in Fu'an City, Fujan Province

作　　者：陈荣魁[1] 

机构地区：[1]中国地质大学,武汉430074

出　　处：《福建地质》2002年第1期35-41,共7页Geology of Fujian

摘　　要：下白石特大桥是同江至三亚国道主干线福鼎至宁德高速公路建设中的一项控制性工程 ,是交通部指定的三阶段设计工程 ,桥长 110 5 m,主跨采用 2× 2 6 0 m预应力混凝土连续钢构。桥位位于白马河入海口处 ,工程地质、水文地质条件复杂 ,通过采用地表大面积的综合地质调查、海上地震映像物探以及海上钻探、原位测试、岩土测试等一系列行之有效的岩土勘察方法 ,确保了岩土工程勘察质量 ,其结果切实可行 ,为后期施工单位提供科学依据。The Xiabaishi Outsize Bridge, located at the estuary of the Baimahe River, is a dominative project in the Fuan Ningde segment of the Dongjiang (Heilongjiang Province) Sanya (Hainnan Province) Expressway and has 1105 meters long The main span of the Bridge is built by the consecutive steel structures and pre stressed concrete members (2 m×260 m) The hydrogeologic and engineering geologic conditions of the construction site are complicated Some new geotechnical surveying ways such as the comprehensive geologic investigation on the land, offshore seismic imaging survey, marine drilling and some testing methods were used in the construction These have the rock soil engineering quality guaranteed in the construction of the Bridge Therefore, the prospecting report submitted earned favorable comments from the bridge owner, other construction company and engineering supervise company

关 键 词：福建 下白石特大桥 岩土勘察 工程地质 水文地质条件 海上钻探 原位测试 

分 类 号：U442[建筑科学—桥梁与隧道工程] P642[交通运输工程—道路与铁道工程]