华侨大学学报（自然科学版）2024，Vol.45Issue(1)：1-9,9.DOI:10.11830/ISSN.1000-5013.202308046
植物脲酶诱导碳酸盐沉淀改良土体研究进展
Research Progress of Soil Improvement by Plant Urease Induced Carbonate Precipitation
摘要
Abstract
Soil improvement by enzyme induced carbonate precipitation(EICP)is an emerging hot technologie in the field of geotechnical engineering.The research status of soil improvement by EICP are summarized com-prehensively,the key technical parameters are optimized,and the prospects of future development of EICP are pointed out.The standard method of soil improvement by plant urease promoting sinking of calcium carbonate is suggested.The preservation methods of plant urease and the longterm performance of soil improvement by EICP under special environmental conditions are conducted.The research results show that EICP can signifi-cantly improve the performance of soil,the maximal unconfined compressive strength reaches 3 MPa,the abili-ty of wind erosion resistance reaches 29.1 m·s-1,the surface penetration strength reaches 1.065 MPa,the rate of permeability coefficient reduction reaches 98.2％,the rate of heavy metal ion mass content reduction reaches 99.96％.关键词
植物脲酶/酶诱导碳酸盐沉淀(EICP)/土体改良/固化/重金属Key words
plant urease/enzyme induced carbonate precipitation(EICP)/soil improvement/solidification/heavy metal分类
建筑与水利引用本文复制引用
李明东,张诗艾,杨远江,徐浩峰,陶雪晴,何稼..植物脲酶诱导碳酸盐沉淀改良土体研究进展[J].华侨大学学报（自然科学版）,2024,45(1):1-9,9.基金项目
国家重点实验室开放基金资助项目(2022NRE29) （2022NRE29）
国家自然科学基金资助项目(51869001) （51869001）
