广东工业大学学报 ›› 2024, Vol. 41 ›› Issue (02): 11-22.doi: 10.12052/gdutxb.230187
梁仕华1, 谢运鹏1, 邓尤术2
Liang Shi-hua1, Xie Yun-peng1, Deng You-shu2
摘要: 基于微生物诱导碳酸钙沉淀(Microbially Induced Calcium carbonate Precipitation,MICP) 技术的土体胶结固化技术是21世纪以来岩土工程、地质工程领域研究的热点之一。本文系统阐述了MICP技术的加固机理,从MICP加固效果和应用实践的角度出发,对MICP技术工程应用的研究现状进行评述。结果表明:MICP固化后的场地强度呈现出不均匀性明显、碳酸钙含量分布随深度递减的趋势;沙漠环境中,原位提取的菌种诱导生成的碳酸钙覆膜较传统的巴氏芽孢杆菌,具有更好的强度表现和稳定性;新型MICP技术应用(如微生物水泥、微生物砖) 在强度、耐久性上表现出良好的应用前景,有望为实现我国双碳目标注入新的活力。基于MICP技术碳酸钙沉淀特质的影响因素,现场尺度下如何提高碳酸钙分布的均匀性以及在季节性变化下的碳酸钙骨架的耐久性、不同环境下的固化效率改进方案应该成为日后研究的重中之重。
中图分类号:
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