| 酶诱导碳酸钙沉淀(EICP)技术及其在岩土工程中的应用 |
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| 引用本文： | 曹光辉,刘士雨,俞 缙,蔡燕燕,胡 洲,毛坤海.酶诱导碳酸钙沉淀(EICP)技术及其在岩土工程中的应用[J].高校地质学报,2021,27(6):754-768. |
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| 作者姓名： | 曹光辉 刘士雨 俞 缙 蔡燕燕 胡 洲 毛坤海 |
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| 作者单位： | 华侨大学 福建省隧道与城市地下空间工程技术研究中心,厦门 361021;华侨大学 福建省隧道与城市地下空间工程技术研究中心,厦门 361021;华侨大学 福建省智慧基础设施与监测重点实验室,厦门 361021;南昌铁路天河建设有限公司,南昌 330026 |
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| 基金项目： | 国家自然科学基金;国家自然科学基金;国家自然科学基金;福建省自然科学基金 |
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| 摘 要： | 通过酶诱导生成碳酸钙沉淀来改良土壤的技术被称为EICP，由于其应用广泛，在过去十多年来引起了越来越多的关注。文章从EICP的机理出发，总结植物脲酶和细菌脲酶的提取方法，探究脲酶、钙源、尿素、脱脂奶粉、温度和pH等因素对EICP胶结效果的影响，归纳检测EICP加固试样的强度、碳酸钙含量、微观结构和成分的方法，并对EICP在岩土工程的应用进行总结与评述。目的是展示目前国内外关于EICP的研究现状，展望未来的研究方向及需要克服的问题。
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| 关 键 词： | 脲酶 诱导矿化 EICP 碳酸盐沉淀 胶结 |
Enzyme-induced Calcium Carbonate Precipitation (EICP) and ItsApplication in Geotechnical Engineering |
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| CAO Guanghui,LIU Shiyu,YU Jin,CAI Yanyan,HU Zhou,MAO Kunhai.Enzyme-induced Calcium Carbonate Precipitation (EICP) and ItsApplication in Geotechnical Engineering[J].Geological Journal of China Universities,2021,27(6):754-768. |
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| Authors: | CAO Guanghui LIU Shiyu YU Jin CAI Yanyan HU Zhou MAO Kunhai |
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| Institution: | 1. Fujian Tunnel and Urban Underground Space Engineering Research Center, Huaqiao University, Xiamen 361021, China;
2. Fujian Key Laboratory of Intelligent Infrastructure and Monitoring, Huaqiao University, Xiamen 361021, China；;
3. Nanchang Railway Tianhe Construction Co., Ltd., Nanchang 330026, China; |
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| Abstract: | The technique of improving soil by enzyme-induced calcium carbonate precipitation is called EICP, which has attracted more and more attention over the past decade due to its wide application. The article describes the mechanism of EICP and summarizes the extraction methods of plant urease and bacterial urease. In addition, the influence of factors such as urease, calcium source, urea, skimmed milk powder, temperature and pH on the cementing effects of EICP is explored. Furthermore, methods for testing the strength, calcium carbonate content, microstructure and composition of EICP reinforced samples are summarized, and the application of EICP in geotechnical engineering is evaluated. The purpose of this article is to summarize the current status of EICP research and potential problems that need to be overcome in future research. |
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| Keywords: | urease induced mineralization EICP carbonate precipitation cementation |
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