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中国土木工程学会第九届土力学及岩土工程学术会议

作者： C F Leung nus.edu.sg J Chu ntu.edu.sg Centre for Soft Ground Engineering National University of Singapore Singapore cvelcf Geotechnical Research Centre Nanyang Technological University Singapore cjchu

＜正＞ This paper presents the findings of some of the research studies carried out in Singapore on land reclamation problems and related issues. Experimental studies on soil improvement using vertical drains are first presented. The results provide a good insight on the problem understudy and help to improve the design of vertical drains in land reclamation projects. The second half of this paper reports the experimental and field studies on the use of waste soils for land reclamation. The findings reveal that waste soils can be used as reclamation fill materials but appropriate actions and evaluations must be made in order to ensure the fill functions satisfactorily and the magnitude and rate of fill settlement can be determined.

关键词： land reclamation consolidation soil improvement waste soils settlement

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Bio-grouting technologies for enhancing uniformity of biocementation:A review

Biogeotechnics

引用

Biogeotechnics 2023年第3期1卷 1-7页

作者： Junjie Zheng Hanjiang Lai Mingjuan Cui Xingzhi Ding Yajie Weng Jianwei Zhang School of Civil Engineering Wuhan UniversityWuhan 430072China Institute of Geotechnical and Underground Engineering Huazhong University of Science and TechnologyWuhan 430074China Zijin School of Geology and Mining Fuzhou UniversityFuzhou 350108China College of Civil Engineering Fuzhou UniversityFuzhou 350108China School of Civil Engineering and Architecture Henan UniversityKaifeng 475004China

Biocementation-based soil improvement is an emerging ground treatment method in geotechnical engineering that has garnered extensive attention over the past two *** of the challenges associated with this method revolves around the uniformity of biocementation,a crucial factor closely tied to bio-grouting *** traditional biotreatment methods,the two-phase method and the one-phase method,suffer from the issue of non-uniform ***,in recent years,various improved grouting technologies have been proposed to address this concern by aiding bacterial adsorption and controlling carbonate *** paper reviews the mechanisms and grouting processes employed in these enhanced bio-grouting ***,the challenges of implementing these grouting technologies in real-world applications are also thoroughly discussed.

关键词： Biocementation soil improvement Grouting technology Uniformity

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