Modeling lightweight cemented backfill considering progressive breakage. (September 2020)

• Record Type: Journal Article
• Authors: Yu, Chengjun; Deng, An; Nguyen, Giang
• Is Part Of: Computers and geotechnics. Volume 125(2020)
• Publication Date: 2020-09
• Subjects: Constitutive -- Elasto-brittle -- Elasto-plastic -- Modified Cam Clay -- Breakage -- Yield surface; Engineering geology -- Data processing -- Periodicals; Soil mechanics -- Data processing -- Periodicals; Rock mechanics -- Data processing -- Periodicals; 624.1510285
• DOI: 10.1016/j.compgeo.2020.103664
• Languages: English
• ISSNs: 0266-352X

Abstract

Abstract: An analytical model for lightweight cemented backfill is presented. The model integrates elasto-brittle and elasto-plastic bodies, replicating responses of low-density materials and cementation that are present in backfills. The model uses a semi-implicit algorithm to iterate stress-strain solutions, and the universal shear contraction. The model was validated on a lightweight cemented backfill containing expanded polystyrene beads.