Study on engineering properties of improved soil by GT soil firming agent

FANG Xiang-wei1; SUN Shu-guo1; CHEN Zheng-han1; SHEN Chun-ni1; XU Er-chang2

doi:10.16285/j.rsm.2006.09.023

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Study on engineering properties of improved soil by GT soil firming agent

更新时间：2026-06-25

- Study on engineering properties of improved soil by GT soil firming agent
- Issue 9, Pages: 1545-1548(2006)
- 作者机构：
  
  1. 后勤工程学院建筑工程系
  2. 德国余安企业有限公司
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2006.09.023
  CLC： TU472
- Published：2006
- 稿件说明：
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[1]方祥位,孙树国,陈正汉,申春妮,徐尔昌.GT型土壤固化剂改良土的工程特性研究[J].岩土力学,2006(09):1545-1548.

FANG Xiang-wei1, SUN Shu-guo1, CHEN Zheng-han1, et al. Study on engineering properties of improved soil by GT soil firming agent[J]. 2006, (9): 1545-1548.
[1]方祥位,孙树国,陈正汉,申春妮,徐尔昌.GT型土壤固化剂改良土的工程特性研究[J].岩土力学,2006(09):1545-1548. DOI： 10.16285/j.rsm.2006.09.023.

FANG Xiang-wei1, SUN Shu-guo1, CHEN Zheng-han1, et al. Study on engineering properties of improved soil by GT soil firming agent[J]. 2006, (9): 1545-1548. DOI： 10.16285/j.rsm.2006.09.023.

摘要

GT型土壤固化剂是一种新型的土壤改性加固材料

以高钙灰和脱硫石膏两种工业废料为主要原料

辅以生石灰、水泥、熟石膏、硫酸铝及明矾石等次要成分

采用生石灰消解法除去脱硫石膏中的自由水

按全粉料配料的方法研制而成。按一定掺量向土中掺入石灰和GT型土壤固化剂制成石灰改良土样和固化剂改良土样并进行养护、浸水

对土样进行击实试验、直剪试验、压缩试验和渗透试验。试验结果表明固化剂改良土的击实效果、抗剪强度、压缩性、抗渗透性等工程特性明显优于石灰改良土。分析了GT型土壤固化剂加固土的机理

为进一步的研究和工程应用提供参考。

Abstract

GT soil firming agent is a kind of new material that modifies and reinforces soil. Its main raw materials are industry waste materials of high calcium ash and desulfurated gypsum; and its minor constituents are quicklime

cement

plaster

sulfuric acid aluminum

alunite

etc. It is synthesized with ingredient method of full powder

by removing free water of desulfurated gypsum using counteraction way of quicklime. The improved soils were made by adding lime and GT soil firming agent with given proportion

and then were cured and submerged underwater. Compaction tests

direct shear tests

compression tests and permeability tests were carried out. The tests indicate that the engineering properties of GT soil firming agent improved soil

such as compaction effect

shearing strength

compressibility and resistance to permeability

are better than lime-improved soil. Improving mechanism of GT soil firming agent is studied further more. The results can be for reference to further study and engineering application.

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