Results of Load Tests on DMM Piles Set in Lateritic Soil-Video

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The study reports load tests on deep soil-mixing (DMM) piles in tropical, lateritic soil in Primavera do Leste, Brazil. Two piles, installed using different drilling and injection procedures, were tested; one was retested a year later after equipment-support problems interrupted the initial test. The soil was predominantly sandy clay, and the cement-treated mixture achieved compressive strengths of about 400–500 kPa. Load–settlement results were assessed using a 5 mm settlement criterion, which produced conservative estimates of failure load. Initial findings are promising for using DMM piles in foundations, but further testing is needed.

Keywords

deep soil-mixing piles

load tests

lateritic soil

compressive strength

load-settlement behavior