中文摘要：

随着海岸侵蚀和海岸线后退,人类的生存和生活环境遭到威胁。目前常用的海岸防护措施极易遭到自然灾害破坏,不经济、不环保且耗费大量维修费用,而微生物诱导碳酸钙沉淀（MICP）技术可以显著改善土体强度、刚度、渗透性及抗液化性能,并且相比于传统土体改良工艺,其绿色环保、环境友好型特点更加符合可持续发展理念,在砂土体加固领域有着非常广阔的工程应用前景。系统地总结了国内外关于微生物法加固砂土堤岸的室内及现场试验研究的最新成果,并对微生物固化土体的力学特性进行了研究论述。

英文摘要：

The densely populated coastal areas in China. With coastal erosion and coastline back, human survival and living environment is threatened. Commonly used coastal protection measures are vulnerable to natural disasters. It is not economical , not environmentally friendly and cost a lot of maintenance costs. Studies have shown that microbial induced calcium carbonate precipitation （MICP） technology can significantly improve the soil strength, stiffness, permeability and resistance to liquefaction. Compared to traditional soil improvement process, its green and environmentally friendly features more in line with sustainable development concept, and has a very wide engineering application prospects in the field of sand body reinforcement . In this paper, the latest achievements in the laboratory and field tests on the reinforcement of sandy soil embankment by microbial method at home and abroad are summarized systematically, and the mechanical properties of microbial solidified soil are also discussed.