| 生物酶改良膨胀土的压缩特性 |
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| 引用本文： | 曾娟娟,文畅平,刘子健.生物酶改良膨胀土的压缩特性[J].土木建筑与环境工程,2018,40(3):133-138. |
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| 作者姓名： | 曾娟娟 文畅平 刘子健 |
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| 作者单位： | 湖南城建职业技术学院 建筑工程系,湖南 湘潭,411100
中南林业科技大学 土木工程与力学学院,长沙,410004 |
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| 基金项目： | 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) Hunan Traffic Science and Technology Project(19801-802)，Hunan Provincial Innovation Project for Postgraduate Students(CX2015B308)，Central South University of Forestry and Technology Innovation Project for Postgraduate Students(CX2015B31) |
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| 摘 要： | 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:si=bpai。
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| 关 键 词： | 生物酶 膨胀土 压缩特性 bio-enzyme expansive soil compressibility |
| 收稿时间： | 2017/6/5 0:00:00 |
Characteristics of compressibility of bio-enzyme expansive soil modified |
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| Zeng Juanjuan,Wen Changping and Liu Zijian.Characteristics of compressibility of bio-enzyme expansive soil modified[J].土木建筑与环境工程,2018,40(3):133-138. |
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| Authors: | Zeng Juanjuan Wen Changping and Liu Zijian |
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| Affiliation: | Department of Structural Engineering, Hunan Urban Construction College, Xiangtan 411100 Hunan, P. R. China,College of Civil Engineering and Mechanics, Central South University of Forestry and Technology, Changsha 410004, P. R. China and College of Civil Engineering and Mechanics, Central South University of Forestry and Technology, Changsha 410004, P. R. China |
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| Abstract: | 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-treated and cement-treated expansive soil possesses different compressibility, which is embodied by e-p curve and coefficient compressibility The compressibility of expansive soil is improved by adding bio-enzyme,lime and cement.When the mass ratio between enzyme and water is 1:300,compressibility is minimum.Linear equations can describe the relation between unit settlement and unit loads:si=bpai. |
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| Keywords: | bio-enzyme expansive soil compressibility |
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