细粒土主要物理指标与承载力的关系研究—以大连长兴岛葫芦山湾区域为例

Study on the Relationship between Main Physical Indexes and Bearing Capacity of Fine Soil—Taking Hulushan Bay at Changxing Island in Dalian as an Example

摘要: 利用大连长兴岛葫芦山湾海域勘察资料，对742组黏性土、61组粉土主要物理指标与容许承载力进行了相关分析。分析表明：天然含水率、天然孔隙比、液性指数与容许承载力具有高度的相关性。建立了物理指标与容许承载力的经验关系6个。提出了实际勘察工作中黏性土、粉土承载力特征值fak的综合评价方法。为采用物理指标评价黏性土、粉土承载力提供了理论依据。

Abstract: The main physical indexes and allowable bearing capacity of 742 groups of clay soil and 61 groups of silt soil were analyzed by using the investigation data of Hulushan bay at Changxing Island in Dalian. The analysis shows that natural moisture content, natural porosity and liquid index are highly correlated with the allowable bearing capacity. Six empirical relationships between physical indexes and allowable bearing capacity were established. A comprehensive evaluation method for the characteristic value of bearing capacity fak of clay and silty soil is proposed. It provides a theoretical basis for evaluating the carrying capacity of viscous soil and silty soil by using physical indexes.