Work

Effect of threshold suction on the prediction of the permeability function by using the statistical method

Year: 2022

Type: article

Abstract: The statistical method is commonly adopted by many researchers for the estimation of the permeability function of unsaturated soil. The statistical method is developed based on the assumption that the pores are randomly connected to each other. Water can only flow through the water phase in those pores. In other words, the statistical method is only applicable when the water phase in soil is in a continuous condition. However, past studies indicated that the water phase in unsaturated soil became discontinuous when the soil suction goes beyond the residual suction. When the water phase is discontinuous, the water in some of the pores may not be able to provide the flow path because water cannot flow into the surrounding pores. Therefore, there will be a threshold suction where the statistical method becomes inapplicable for suctions beyond this threshold value. In this parametric study, the effect of the threshold suction on the estimated permeability function obtained from the statistical method was investigated.

Source: Results in Engineering

DOI: 10.1016/j.rineng.2022.100456

Authors: Lei Tang, Gang Tian, Guoliang Dai, Qian Zhai, Harianto Rahardjo, Alfrendo Satyanaga

Institutions: Southeast University, Nanyang Technological University, Nazarbayev University

Language: English

Topic: Soil and Unsaturated Flow

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Clean water and sanitation

Open Access status: gold

Estimated APC paid: $1,000