期刊论文

Normalized Stress-strain Property of Bioenzyme-treated Expansive Soil

中文

应用基础与工程科学学报

1005-0930

2019

27

5

1091-1101

10.16058/j.issn.1005-0930.2019.05.013

(2014DFA53120):国家国际科技合作专项 (HELFMTS1707):中南林业科技大学现代木结构工程材制造及应用技术湖南省工程实验室开放基金资助项目 (2013GDXK006):湖南省重点学科建设项目 (104-0094):中南林业科技人学引进***人才科研启动基金项目

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以生物酶改良膨胀土的应力-应变关系归一化特性为研究对象,提出了基于生物酶掺量的生物酶改良膨胀土的应力-应变关系特性的归一化方程.通过不同生物酶掺量下的三轴固结排水剪切试验,生物酶改良膨胀土的应力-应变关系均表现为应变硬化型,应力-应变关系曲线为典型的双曲线.基于Duncan-Chang模型参数拟合方法,分析了生物酶掺量对相应参数的影响,提出了生物酶掺量与相应参数的关系表达式.采用主应力差渐近值(σ_1-σ_3)_(ult)作为归一化因子,给出了相应的归一化条件,对生物酶改良膨胀土在不同生物酶掺量、不同围压σ_3下的应力-应变关系特性进行归一化分析,其应力-应变关系特性归一化程度较高.通过所...

The normalized stress-strain property of bioenzyme-treated expansive soil was analyzed,and a normalized stress-strain equation was presented to predict the stress-strain curve of bioenzyme-treated expansive soil under different ratio of bioenzyme-based soil stabilizer.The triaxial consolidated drained shear tests were conducted to study the stress-strain relationship behaviors of bioenzyme-treated expansive soil under different ratio of bioenzyme-based soil stabilizer,the stress-strain relationship of bioenzyme-treated expansive soil is strain ...