工程地质学报2024，Vol.32Issue(1)：236-264,29.DOI:10.13544/j.cnki.jeg.2022-0046
微生物岩土工程技术的过去、现在与未来
THE PAST,PRESENT AND FUTURE OF TECHNOLOGY IN MICROBIAL GEOTECHNICAL ENGINEERING
摘要
Abstract
Microbial geotechnical engineering technology,as a novel and eco-friendly approach for rock and soil improvement and reinforcement,holds significant promise.However,constrained by theoretical limitations and re-search methodologies,this technology still faces several shortcomings,hindering its efficient implementation and becoming a bottleneck for large-scale field applications.The key to improving curing efficiency lies in clarifying its underlying principles and influence mechanisms.This paper reviews the current research status of Microbial Induced Calcium Carbonate Precipitation technology(MICP).It systematically summarizes the curing principles and the physical and mechanical properties of improved rock and soil.The analysis suggests that curing efficiency is mainly influenced by the reactant itself and the external environment.While MICP technology has found applications in soil solidification,crack repair,anti-seepage treatment,pollution repair,and microbial cement,it remains limited to laboratory settings due to challenges like homogeneous mineralization,uneconomical reactants,short activity peri-ods,significant environmental interference from microorganisms and urease,incidental toxicity of metabolites,and poor field application.The paper concludes by proposing potential breakthroughs and improvement directions for these shortcomings.It highlights the advantages of using soybean meal for bacterial expansion and urease supply,as well as the environmental friendliness and economy of utilizing phosphogypsum as an on-site calcium source.These suggestions aim to provide reference points for researchers and practitioners engaged in microbial geotechnical engi-neering research and technology development.关键词
微生物岩土工程/微生物地质工程/微生物诱导碳酸钙沉积/巴氏芽孢杆菌/脲酶/磷石膏Key words
Microbial geotechnical engineering/Microbial geological engineering/Microbial induced calcium car-bonate precipitation(MICP)/Bacillus pasteurii/Urease/Phosphogypsum分类
建筑与水利引用本文复制引用
王双娇,李志清,田怡帆,李燕明,周应新,李丹丹..微生物岩土工程技术的过去、现在与未来[J].工程地质学报,2024,32(1):236-264,29.基金项目
第二次青藏高原综合科学考察研究项目(资助号:2019QZKK0904),国家重点研发计划项目(资助号:2019YFC1509903),国家自然科学基金项目(资助号:42177146),云南省科技厅重点研发计划项目(资助号:202103AA080013).This research is supported by the Second Comprehensive Research Project on Qinghai-Tibet Plateau(Grant No.2019QZKK0904),the National Key Research and Development Program of China(Grant No.2019YFC1509903),National Natural Science Foundation of China(Grant No.42177146)and Yunnan Provincial Key Research and Development Program(Grant No.202103AA080013). （资助号:2019QZKK0904）
