| 微生物诱导碳酸钙沉积加固土体的注浆方法 |
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| 引用本文： | 彭劼,黄慕凡,谢高强,田艳梅.微生物诱导碳酸钙沉积加固土体的注浆方法[J].河海大学学报(自然科学版),2019,47(3):259-264. |
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| 作者姓名： | 彭劼 黄慕凡 谢高强 田艳梅 |
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| 作者单位： | 河海大学岩土力学与堤坝工程教育部重点实验室,江苏 南京 210098;江苏省岩土工程技术工程研究中心,江苏 南京 210098;河海大学岩土力学与堤坝工程教育部重点实验室,江苏 南京 210098;江苏省岩土工程技术工程研究中心,江苏 南京 210098;河海大学岩土力学与堤坝工程教育部重点实验室,江苏 南京 210098;江苏省岩土工程技术工程研究中心,江苏 南京 210098;河海大学岩土力学与堤坝工程教育部重点实验室,江苏 南京 210098;江苏省岩土工程技术工程研究中心,江苏 南京 210098 |
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| 基金项目： | 国家自然科学基金(51578214) |
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| 摘 要： | 为了探讨微生物诱导碳酸钙沉积(MICP)在实际工程中的应用方法,尝试注浆管MICP加固土体,即在土体中插入不同分布密度注浆孔的注浆管,将菌液和胶结液通过注浆管注入土体中,从而形成加固体,并通过对比试验,研究注浆管MICP的加固效果。试验结果表明,经过注浆管MICP处理,能形成完整的且强度较高的固化砂柱,并且固化砂柱的强度比较均匀。
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| 关 键 词： | 微生物诱导碳酸钙沉积 注浆管 土体加固 模型试验 |
Grouting method of MICP-treated soil |
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| PENG Jie,HUANG Mufan,XIE Gaoqiang and TIAN Yanmei.Grouting method of MICP-treated soil[J].Journal of Hohai University (Natural Sciences ),2019,47(3):259-264. |
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| Authors: | PENG Jie HUANG Mufan XIE Gaoqiang and TIAN Yanmei |
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| Institution: | Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China; Jiangsu Research Center for Geotechnical Engineering Technology, Nanjing 210098, China,Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China; Jiangsu Research Center for Geotechnical Engineering Technology, Nanjing 210098, China,Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China; Jiangsu Research Center for Geotechnical Engineering Technology, Nanjing 210098, China and Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China; Jiangsu Research Center for Geotechnical Engineering Technology, Nanjing 210098, China |
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| Abstract: | To explore the application method of MICP in the actual project, the MICP grouting pipe is used to reinforce the soil in this study. That is to insert the grouting pipe into the soil through holes of different densities, then penetrate the bacteria fluid and the cementing fluid into the soil through the holes on the grouting pipe, and at last, the cemented sand column can be formed in the soil. By comparing the reinforcement effect of contrast experiments, the results show that this grouting method can be used to form a complete and high strength cemented sand column and the strength of each layer is relatively balanced. |
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| Keywords: | MICP grouting pipes model experiment soil reinforcement |
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