期刊论文

中文

土木建筑与环境工程

1674-4764

2018

40

3

133-138

10.11835/j.issn.1674-4764.2018.03.019

湖南省科技厅项目（19801-8025）； 湖南省研究生科研创新资助项目（CX2015B308）； 中南林业科技大学研究生科技创新基金（CX2015B31）~~；

本校为其他机构

为探究生物酶改良膨胀土压缩特性,通过一维固结试验,研究了生物酶、石灰、水泥改良膨胀土体孔隙比、压缩系数、单位沉降量与荷载变化规律。探讨了固结压力对生物酶、石灰、水泥改良膨胀土体压缩特性的影响。试验结果表明:生物酶、石灰、水泥改良膨胀土表现出不同的压缩性,主要反映在压缩曲线与压缩系数上;掺生物酶、石灰、水泥都能改善膨胀土的压缩性,其中,生物酶配比为1∶300改良膨胀土的压缩性最小;改良膨胀土的单位沉降量与荷载的关系可用幂函数来表示:s_i=bp_i~a。

In order to determine the compressibility characteristics of bio-enzyme expansive soil, by a series of one-dimensional consolidation tests, the effect of consolidation pressure on compressibility attributions of bio-enzyme-treated, lime-treated and cement-treated expansive soil is scrtutinized, and voids ratio, compression coefficient and unit settlement are gained. The influence of compression pressure on bio-enzyme -treated expansive soil, lime-treated expansive soil, and cement-treated expansive soil is discussed. Bio-enzyme -treated, lime-t...