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一、工程概况 天津地区的海港(天津新港)及河港(天津塘沽区沿海河两岸),位于渤海西端海河入海的尾闾。地表下数十米范围内,主要是新生代第四纪全新世的河口三角洲相冲积层和海相沉积层,表面覆盖层甚厚。地表层土天然含水量大于液限,孔隙比大于1.0～1.5,属于淤泥类土,地面下20～24米分布有粉、细砂层(N_s≥37)。据此地基条件,自五十年代以后,在该地区建造码头多采用高桩承台结构型式,简称高桩码头。
First, the project overview Tianjin Port (Tianjin Xingang) and Hegang (Tianjin Tanggu District along the banks of the Haihe River), located in the western Bohai Sea at the tail of the sea into the sea. Within tens of meters below the surface, mainly in the Cenozoic Quaternary Holocene estuarine alluvial and marine sediments, the surface coating is very thick. Surface soil natural water content is greater than the liquid limit, the porosity ratio is greater than 1.0 to 1.5, belonging to the silt soil, 20 ~ 24 meters below the ground distributed in the powder, fine sand (N_s ≥ 37). According to the foundation conditions, since the 1950s, the construction of wharves in the area mostly adopts the high-pile cap structure type, referred to as the high-pile wharf.