Treatment effect of reagent injection mixing ratio on soft clay improved by chemical electroosmosis method

REN Lian-wei; CAO Hui; KONG Gang-qiang

doi:10.16285/j.rsm.2019.0720

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Treatment effect of reagent injection mixing ratio on soft clay improved by chemical electroosmosis method

更新时间：2026-06-25

- Treatment effect of reagent injection mixing ratio on soft clay improved by chemical electroosmosis method
- Vol. 41, Issue 4, Pages: 1219-1226(2020)
- 作者机构：
  
  1. 河南理工大学土木工程学院,河南,焦作,454000
  2. 河海大学岩土力学与堤坝工程教育部重点实验室,江苏,南京,210098
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2019.0720
  CLC： TU447
- Online First：01 July 2020，
  
  Published：2020
- 稿件说明：
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REN Lian-wei, CAO Hui, KONG Gang-qiang. Treatment effect of reagent injection mixing ratio on soft clay improved by chemical electroosmosis method[J]. 2020, 41(4): 1219-1226.
DOI：

REN Lian-wei, CAO Hui, KONG Gang-qiang. Treatment effect of reagent injection mixing ratio on soft clay improved by chemical electroosmosis method[J]. 2020, 41(4): 1219-1226. DOI： 10.16285/j.rsm.2019.0720.

摘要

化学电渗法处理软黏土作为一种快速有效的地基加固方式，近年来受到学术界的广泛关注。为了探讨试剂注入配合比对化学电渗法处治软黏土地基加固效应的影响，以联合注入CaCl2和Na2SiO3溶液注入配合比为研究对象，研究注入CaCl2和Na2SiO3溶液物质的量浓度比分别为1:1、1:2、1:3、2:1、3:1时的电渗排水加固软黏土地基效果，实测试验过程中的排水量、排水速率、排水微观特征（ICP-MS）以及能量消耗等变化规律，初步探讨排水效果、加固效果及均匀性等问题。研究结果表明，试验条件下，联合注入物质的量浓度比为1:1时化学电渗效果最好，且阳极腐蚀量最少、耗能量最低；试剂注入配合比对电渗效果的影响主要由加入试剂中阳离子的种类和数量决定，其中Ca2+对化学电渗的影响效果相对较突出。

Abstract

Chemical electroosmosis method is one of the fast and effective methods for soft ground treatment

which is widely accepted by engineers. In order to study the effect of reagent injection mixing ratio on chemical electroosmosis treatment of soft clay

model tests on electroosmotic were carried out

and the CaCl2 and Na2SiO3 solutions were combined to study the injection effect. The electroosmotic drainage effect was obtained when the ratio of the concentration of the substances was 1:1

1:2

1:3

2:1 and 3:1 respectively. The displacement

drainage rate and drainage microscopic characteristics of each working condition after the test (ICP-MS)

energy consumption

drainage effect

reinforcement effects

and uniformity were also discussed. The results show that when the concentration ratio of CaCl2 solution and Na2SiO3 solution was 1:1

the chemical electroosmosis effect is the best

the anodic corrosion amount is the least

and the energy consumption is the lowest. The electroosmotic effect is mainly influenced by the reagent injection ratio

specifically

by the type and quantity of cations added to the reagent

and the effect of Ca2+ on chemical electroosmosis is relatively prominent.

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Related Institution

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Key Laboratory of Geotechnical Engineering, Ludong University

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