Biological consolidation test study of hydraulic fill for land reclamation at North Bay of Guangxi Province

OU Xiao-duo; PAN Xin; YIN Xian-tai; HOU Kai-wen

doi:10.16285/j.rsm.2015.01.003

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Biological consolidation test study of hydraulic fill for land reclamation at North Bay of Guangxi Province

更新时间：2026-06-25

- Biological consolidation test study of hydraulic fill for land reclamation at North Bay of Guangxi Province
- Vol. 36, Issue 1, Pages: 28-33(2015)
- 作者机构：
  
  1. 广西大学土木建筑工程学院,广西,南宁,530004
  2. 广西大学工程防灾与结构安全教育部重点实验室,广西,南宁,530004
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2015.01.003
  CLC： TU411
- Online First：13 June 2018，
  
  Published：2015
- 稿件说明：
移动端阅览
OU Xiao-duo, PAN Xin, YIN Xian-tai, et al. Biological consolidation test study of hydraulic fill for land reclamation at North Bay of Guangxi Province[J]. 2015, 36(1): 28-33.
DOI：

OU Xiao-duo, PAN Xin, YIN Xian-tai, et al. Biological consolidation test study of hydraulic fill for land reclamation at North Bay of Guangxi Province[J]. 2015, 36(1): 28-33. DOI： 10.16285/j.rsm.2015.01.003.

摘要

结合微生物对岩土工程特性影响的研究现状，选取黑曲霉、放射型土壤杆菌及地衣芽孢杆菌3株菌种，首先通过压缩试验研究了不同微生物菌种及其培养液掺入土样后对土样固结特性的影响情况，然后借助矿物和化学成分分析及土粒比表面积测定等手段，初步探索微生物改良吹填土机制。研究表明，掺入微生物菌种及其培养液后土样的压缩系数av1-2均有降低，压缩模量Es1-2均有增加，最大降幅和升幅分别为29%和37%；土样的矿物成分没有改变；土中高价阳离子明显减少，但这不是造成土体压缩特性变化的主因；掺入放射型土壤杆菌、地衣芽孢杆菌后土样土粒的比表面积分别增大到1.49倍、1.45倍，菌株改变了土颗粒间的连接状态，从而导致土体颗粒的增多或者土体结构的变化。

Abstract

This paper is about land reclamation with hydraulic fill. The hydraulic fill is treated with microorganism for enhancing its compressibility. It selects Aspergillus niger

Agrobacterium radiobacter and Bacillus licheniformis to do the experimental study. First

the changes of the consolidation characteristics of fill soil are examined after different microbial strains and culture mediums are added in the soil through consolidation test. Then some measures including determination of specific surface area of soil particles

chemical composition analysis and mineral composition analysis are applied to exploring the mechanism of modified hydraulic fill with microorganisms. The results show that: after the incorporation of microbial strains and culture medium mixed with the soil samples

the compression factors av1-2 of the soil samples show a decreasing trend and the largest drop is 29%; the compression moduli Es1-2 show an increasing trend and the biggest gain is 37%. The mineral composition of soil samples is essentially the same. The high valent cation content reduces significantly

which isn’t the main reason of the change of soil compression feature. The specific surface area of soil particles added with Agrobacterium radiobacter increases 49%. The specific surface area of soil particles added with Bacillus licheniformis increases 45%. The reason is that strains change the connection state of soil particles

and then lead to increasing of soil particles or the change of soil structure.

关键词

Keywords

references

Views

431

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Electrical shock characteristics of hydraulic fill in reclamation land in Beibu Gulf of Guangxi

Elasto-viscoplastic bounding surface model for unsaturated time-dependent soils incorporating non-stationary flow rule

Mechanism of water infiltration affecting ground ice melting in the silty clay layers of the Dema Expressway in the eastern Qinghai-Xizang Plateau

Mechanical properties and microstructural evolution of peaty soils subjected to freeze-thaw cycles

Progressive fracture evolution and mechanical response of cavity-containing sandstone under low-frequency disturbance

Related Author

OU Xiao-duo

PAN Xin

HOU Kai-wen

JIANG Jie

LIU Zi-yan

Related Institution

Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University

Guangxi Metal Tailings Safety Prevention and Control Engineering Technology Research Center

Guangdong Foundation Engineering Group Co., Ltd.

AI问答

⁰