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首页> 外文期刊>Bulletin of engineering geology and the environment >Framework to estimate the soil-water characteristic curve for soils with different void ratios
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Framework to estimate the soil-water characteristic curve for soils with different void ratios

机译：框架估算土壤 - 水分特征曲线，不同空隙率

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摘要

The soil-water characteristic curve (SWCC) contains information regarding the geometric pore space in a soil and is commonly used to estimate unsaturated soil properties, such as unsaturated hydraulic conductivity and unsaturated shear strength. Soil volume change can significantly affect the SWCC and the engineering properties of soil. Different SWCCs can be obtained if the soil specimens are prepared with different initial void ratios. The volumetric shrinkage curve (VSC) is commonly used to convert the SWCC in the form of gravimetric water content (w-SWCC) into a curve that is in the form of degree of saturation (S-SWCC). In this paper, a framework is developed in which different S-SWCCs are generated based on the measured w-SWCC of soil in a relatively loose condition and the VSC. The proposed framework is based on the concept of the pore size distribution function (PSDF). The estimated SWCCs corresponding to different initial void ratios from the proposed framework were verified by using experimental data from published studies.
机译：土壤 - 水特性曲线（SWCC）含有关于土壤中的几何孔隙空间的信息，并且通常用于估计不饱和土的性质，例如不饱和液压导电性和不饱和剪切强度。土壤体积变化会显着影响SWCC和土壤的工程性质。如果使用不同的初始空隙率，可以获得不同的SWCCs。体积收缩曲线（VSC）通常用于将重量含水量（W-SWCC）的形式转换为呈饱和度（S-SWCC）形式的曲线。在本文中，开发了一种框架，其中基于在相对松散的状态和VSC中基于测量的W-SWCC产生不同的S-SWCC。所提出的框架基于孔径分布函数（PSDF）的概念。通过使用公开研究的实验数据验证了来自所提出的框架的不同初始空隙率的估计SWCC。

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