文献类型：期刊文献

英文题名：Mathematical Models for Stress-Strain Behavior of Nano Magnesia-Cement-Reinforced Seashore Soft Soil

作者：Wang, Wei[1];Fu, Yong[2];Zhang, Chen[1];Li, Na[1];Zhou, Aizhao[3]

机构：[1]Shaoxing Univ, Sch Civil Engn, Shaoxing 312000, Zhejiang, Peoples R China;[2]Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen 518055, Peoples R China;[3]Jiangsu Univ Sci & Technol, Dept Civil & Architecture Engn, Zhenjiang 212003, Jiangsu, Peoples R China

年份：2020

卷号：8

期号：3

外文期刊名：MATHEMATICS

收录：SCI-EXPANDED(收录号：WOS:000524085900155)、、Scopus(收录号：2-s2.0-85082420278)、WOS

基金：This research was funded by the National Natural Science Foundation of China, grant number 41772311 and the Zhejiang Provincial Natural Science Foundation of China, grant number LY17E080016.

语种：英文

外文关键词：seashore soft soil; cement; sulfuric acid erosion; stress-strain behavior; mathematical model

外文摘要：The stress-strain behavior of nano magnesia-cement-reinforced seashore soft soil (Nmcs) under different circumstances exhibits various characteristics, e.g., strain-hardening behavior, falling behavior, S-type falling behavior, and strong softening behavior. This study therefore proposes a REP (reinforced exponential and power function)-based mathematical model to simulate the various stress-strain behaviors of Nmcs under varying conditions. Firstly, the mathematical characteristics of different constitutive behaviors of Nmcs are explicitly discussed. Secondly, the conventional mathematical models and their applicability for modeling stress-strain behavior of cemented soil are examined. Based on the mathematical characteristics of different stress-strain curves and the features of different conventional models, a simple mathematical REP model for simulating the hardening behavior, modified falling behavior and strong softening behavior is proposed. Moreover, a CEL (coupled exponential and linear) model improved from the REP model is also put forth for simulating the S-type stress-strain behavior of Nmcs. Comparisons between conventional models and the proposed REP-based models are made which verify the feasibility of the proposed models. The proposed REP-based models may facilitate researchers in the assessment and estimation of stress-strain constitutive behaviors of Nmcs subjected to different scenarios.