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Title:
METHOD FOR CONSOLIDATING SOFT SOIL FOUNDATION BY USING INDUSTRIAL SOLID WASTE AS MAIN RAW MATERIAL
Document Type and Number:
WIPO Patent Application WO/2022/160712
Kind Code:
A1
Abstract:
Disclosed is a method for consolidating a soft soil foundation by using industrial solid waste as a main raw material. The raw material of a soft soil curing agent comprises the following components in percentages by mass: 35.0-42.0% of carbonated steel slag, 22.0-27.0% of a slag powder, 6.0-10.0% of fly ash, 24.0-35.0% of cement, and 2.0-5.0% of lime, gypsum or a mixture of both in any ratio. When the total mass of soft soil, water and the soft soil curing agent is 100%, the mixing ratio of the soft soil curing agent is 12.0-20.0%; and according to the present invention, water is added at a water cement ratio of 0.45-0.55, and the mixture is stirred to prepare a soft soil curing agent slurry, which is injected into the soft soil foundation. According to the present invention, a cement curing agent is replaced with the carbonated steel slag, the slag powder and the fly ash, such that not only is the problem of the low utilization rate of industrial solid waste solved, and the consolidation cost of a mixing pile in the soft soil foundation is greatly lowered, but the treatment problem of the soft soil foundation in urban development and construction is also solved, and the present invention meets the requirements of "Technical Specifications for Consolidation Method of Mixing Pile in Soft Soil Foundation (YBJ225-91).

Inventors:
HOU YIFENG (CN)
WU XIAOGANG (CN)
XIE SHENGHUA (CN)
QIN KE (CN)
DAI YONGXIN (CN)
ZHU JUNXING (CN)
TANG KAI (CN)
ZHAO MENGSHENG (CN)
ZENG XUEMIN (CN)
ZHOU YUXIN (CN)
ZHAO JUN (CN)
Application Number:
PCT/CN2021/116000
Publication Date:
August 04, 2022
Filing Date:
September 01, 2021
Export Citation:
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Assignee:
SINOSTEEL MAANSHAN GENERAL INSTITUTE OF MINING RES CO LTD (CN)
HUAWEI NATIONAL ENGINEERING RES CENTER OF HIGH EFFICIENT RECYCLE AND UTILIZATION FOR METALLIC MINERA (CN)
ENGINEERING INVESTIG & DESIGN INSTITUTE OF SINOSTEEL MIMR CO LTD (CN)
International Classes:
E02D3/00; C09K17/10; E02D3/08; E02D5/46; C09K103/00
Foreign References:
CN112921945A2021-06-08
CN112919834A2021-06-08
CN105970922A2016-09-28
CN105236908A2016-01-13
CN109853520A2019-06-07
CN110078457A2019-08-02
JP2015101830A2015-06-04
Attorney, Agent or Firm:
MA'ANSHAN CITY JINQIAO PATENT AGENT LTD. (CN)
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