Open AccessDetermination of Cost-Effective Sand Mixing Ratio for Improvement of High Liquid Limit Soil Based on Fuzzy Comprehensive Evaluation
Author(s) -
Dongning Sun,
Xin Liu,
Yuhao Cao,
Jinlong Gong,
Baoning Hong
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1203/3/032060
Subject(s) - atterberg limits , mixing (physics) , limit (mathematics) , fuzzy logic , mixing ratio , environmental science , geotechnical engineering , soil science , soil water , mathematics , geology , computer science , physics , mathematical analysis , atmospheric sciences , quantum mechanics , artificial intelligence
In order to save soil resources and increase the utilization range of high liquid limit soil, the high liquid limit soil was improved by mixing sand, and the cost-effective sand mixing ratio was determined with the help of fuzzy comprehensive evaluation method. It is shown that the sand-mixing improvement method can significantly reduce the liquid limit and plasticity index of high liquid limit soil, and increase its value of California bearing ratio to meet the property requirements for embankment filling. The fuzzy comprehensive evaluation results show that the improvement effect and cost of sand-mixed high liquid limit soil reach a comprehensive optimal state when the sand mixing ratio is 20%.