营口—辽滨经济区浅基础适宜性分区

Suitable division of shallow formation in Yingkou—Liaobin Economic Area

营口—辽滨经济区有大面积的软土分布。通过对分布地区软土层的承载力计算和浅基础的规范法沉降量计算,取55 mm作为地基附加沉降界线值,并结合工程危险性指标将研究区划分为Ⅰ级—工程适宜性良好区,Ⅱ级—工程适宜性一般区,Ⅲ级—工程适宜性较差区3级分区。其中Ⅰ级区主要分布在营口市区西部和盐区南部,Ⅱ区主要分布在营口市区西南部及辽滨乡地区、盐区除南部之外的地区,Ⅲ区主要在营口市区东部。Ⅰ、Ⅱ、Ⅲ类区分别占软土分区总面积的10.6%、86.2%、3.2%。

There is a large area of soft soil in distribution in Yingkou—Liaobin Economic Area.The authors divided the studied area into the grade Ⅰ—engineering suitability good area,grade Ⅱ—engineering suitability general area and grade Ⅲ—engineering suitability less area,according to the bearing capacity calculation of soft soil layer and settlement calculation of normative method for shallow foundation,with 55 mm as the boundary of foundation＇s additional settlement and combining with indexes of engineering risk.The grade Ⅰ zone mainly distributes in the west of Yingkou City and the south of salt region,grade Ⅱ mainly distributes in southwestern Yingkou City and the areas except the south of Liaobinxiang and salt areas and the grade Ⅲ mainly distributes in eastern Yingkou City.The areas of the grates Ⅰ,Ⅱ,Ⅲ are accounted 10.6%,86.2% and 3.2% of total area of soft soil in this Economic Area,respectively.