Title:
FOUNDATION PIT MICROBIAL SOIL GRAVITY ENCLOSURE STRUCTURE AND CONSTRUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/257305
Kind Code:
A1
Abstract:
The present invention provides a foundation pit microbial soil gravity enclosure structure and a construction method therefor. The microbial soil gravity enclosure structure relates to mixing a composite bacterial solution, a cementing solution, and an immobilization material with soil by a mixing pile driver or a high-pressure jet grouting machine and curing same to form a continuous lapped microbial soil columnar reinforced retaining wall. The immobilization material is formed by mixing straw fiber powder with expanded perlite powder at a mass ratio of (5-8):(1-3). The cementing solution is a cementing solution containing 0.05-0.1 mol/L sodium phosphate buffer solution, and the pH value of the sodium phosphate buffer solution is 5.5-6.8. In the present invention, by mixing a composite bacterial solution, a cementing solution, and an immobilization material with soil and curing same, the microbially induced cementation reaction rate can be effectively increased and the uniformity and durability of the cured soil can be improved.
Inventors:
HU JUN (CN)
ZHANG HONGSHUO (CN)
XIONG MING (CN)
ZHAN JIANJIAN (CN)
WANG ZHIXIN (CN)
ZENG HUI (CN)
JIA LIN (CN)
ZHANG HONGSHUO (CN)
XIONG MING (CN)
ZHAN JIANJIAN (CN)
WANG ZHIXIN (CN)
ZENG HUI (CN)
JIA LIN (CN)
Application Number:
PCT/CN2021/122119
Publication Date:
December 15, 2022
Filing Date:
September 30, 2021
Export Citation:
Assignee:
UNIV HAINAN (CN)
International Classes:
E02D17/04; C09K17/40; C12N1/20; E02D5/46; C12R1/07
Foreign References:
| CN113417295A | 2021-09-21 | |||
| CN110344392A | 2019-10-18 | |||
| CN111454726A | 2020-07-28 | |||
| CN110130318A | 2019-08-16 | |||
| JP2016220586A | 2016-12-28 | |||
| US20080298901A1 | 2008-12-04 | |||
| KR101030761B1 | 2011-04-26 |
Attorney, Agent or Firm:
HAINAN HEIP INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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