A Fuzzy Based Approach for Indian Standard Classification of Soils

Abstract

AbstractSoil classification is one of the most significant steps in initial studies for analysis, design and applications in geotechnical engineering. The objective of soil classification is to sort various types of soils into groups according to their guide and engineering properties and various other characteristics. Fuzzy rule-based system is a potent tool to mimic the human way of thinking and solve the problem dealing with uncertainty. In this present study, a Fuzzy rule-based approach using Fuzzy IF–THEN rules is used to quantify classification of soils in qualitative terms considering the index properties of soils is proposed. The membership degrees that describe the fuzzified soil (gravelly, sandy, silty, clayey and their combinations) are evaluated by considering triangular functions. Soil types are established depending on the fuzzy rules generated and the membership functions defined by the use of fuzzy operators. The data acquired from laboratory test results are differentiated with the outcomes of fuzzy rule-based system indicating the applicability of the developed fuzzy model.KeywordsDefinitive fuzzy ruleTriangular functionIndian standard soil classification system