微生物促进矿物相变及其改良膨胀土胀缩特性试验研究

doi:10.3724/1000-6915.jrme.2024.0437

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (3297 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要为了研究微生物改良膨胀土胀缩特性的效果，采用元素微量分析、X射线衍射、傅里叶红外光谱和土的胀缩性试验，探讨微生物作用下膨胀土矿物成分、含量和结构的变化规律，研究微生物促进矿物相变作用对膨胀土胀缩特性的影响。试验结果表明，菌–土反应液中阳离子Si4+，Al3+，K+和Mg2+随时间的推移不断溶出，其中，K+浓度呈现先增加后减少的趋势，在14 d时达到峰值，蒙脱石晶体中的Si-O键、Al-O键和-OH键均受到了影响，表明微生物作用下，K+进入蒙脱石晶体层间，晶体结构受到了破坏。经过14 d的微生物作用，膨胀土试样在2?? = 9.882°处出现了伊–蒙混层峰，28 d后在2?? = 48.07°处出现了伊利石峰值。K值法计算结果表明，蒙脱石含量减少，而伊利石含量增加。膨胀土的自由膨胀率和有荷膨胀率的降幅率分别为69.01%和24.04%；线缩率和体缩率的降幅率分别为32.9%和30.98%。研究表明，胶质芽孢杆菌能够有效促进蒙脱石向伊利石的转化，降低膨胀土的胀缩性，为膨胀土的微生物改良提供新的技术途径。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	李珍玉
	单世杰
	林坤
	朱航

关键词 ：土力学, 膨胀土, 蒙脱石, 胶质芽孢杆菌, 相变, 胀缩特性

Abstract：This study evaluates the effects of microbial processes in improving the swelling and shrinking properties of expansive soil. Elemental microanalysis，X-ray diffraction，Fourier-transform infrared spectroscopy and soil swelling-shrinkage tests were conducted to explore the changes in composition，content and structure of the mineral aggregate of expansive soil in bio-mediated treatment process，as well as the effects of microbial-induced mineral phase transformations on the swelling and shrinking characteristics of the soil. The experimental results indicate that cations Si4+，Al3+，K+，and Mg2+ in the microbial-soil reaction liquid continuously leached out over time. Notably，the concentration of K+ exhibited an initial increase followed by a decrease，reaching a peak at 14 days. The Si-O，Al-O and -OH bonds within montmorillonite crystals were also affected. It was suggested that K+ ions entered the interlayers of montmorillonite crystals，disrupting their structures. After 14 days of microbial activity，an illite-smectite mixed-layer peak appeared at 2θ = 9.882° in the expansive soil samples，and an illite peak was observed at 2θ = 48.07° after 28 days. Calculations using the K-value method proved a decrease in montmorillonite content and an increase in illite content. The free swelling rate and load swelling rate of the expansive soil decreased by 69.01% and 24.04%，respectively；the linear shrinkage rate and volumetric shrinkage rate decreased by 32.9% and 30.98%，respectively. The study reveals that Paenibacillus mucilaginosus effectively promotes the transformation of montmorillonite to illite and improves the swelling and shrinking properties of expansive soil，which provides a novel approach towards modifying some engineering properties of soils.

Key words： soil mechanics expansive soil montmorillonite Paenibacillus mucilaginosus phase transition swell- shrink properties

引用本文:

李珍玉，单世杰，林坤，朱航. 微生物促进矿物相变及其改良膨胀土胀缩特性试验研究[J]. 岩石力学与工程学报, 2025, 44(1): 209-220.
LI Zhenyu，SHAN Shijie，LIN Kun，ZHU Hang. Experimental study on microbial-induced mineral phase transformation and its improvement of swell-shrink properties of expansive soil. , 2025, 44(1): 209-220.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.3724/1000-6915.jrme.2024.0437 或 https://rockmech.whrsm.ac.cn/CN/Y2025/V44/I1/209

[1]	郑健龙. 公路膨胀土工程理论与技术[M]. 北京：人民交通出版社，2013：32-38.(ZHENG Jianlong. Theory and technology for highway expansive soil engineering[M]. Beijing：China Communication Press，2013：32-38.(in Chinese))
[2]	IKEAGWUANI C C，NWONU D C. Emerging trends in expansive soil stabilisation：A review[J]. Journal of Rock Mechanics and Geotechnical Engineering，2019，11(2)：423-440.
[3]	李勤，陆现彩，张立虎，等. 蒙脱石层间阳离子交换的分子模拟[J]. 南京大学学报：自然科学，2019，55(6)：879-887.(LI Qin，LU Xiancai，ZHANG Lihu，et al. Molecular simulation of interlayer cation exchange of montmorillonite[J]. Journal of Nanjing University：Natural Science，2019，55(6)：879-887.(in Chinese))
[4]	于海文，马田田，韦昌富，等. 阳离子交换量和盐溶液浓度对膨润土膨胀变形的影响[J]. 岩土力学，2023，44(9)：2 603-2 610.(YU Haiwen，MA Tiantian，WEI Changfu，et al. Effects of cation exchange capacity and salt solution concentration on swelling deformation of bentonite[J]. Rock and Soil Mechanics，2023，44(9)：2 603-2 610.(in Chinese))
[5]	刘宽，叶万军，高海军，等. 干湿环境下膨胀土力学性能劣化的多尺度效应[J]. 岩石力学与工程学报，2020，39(10)：2 148-2 159. (LIU Kuan，YE Wanjun，GAO Haijun，et al. Multi-scale effects of mechanical property degradation of expansive soils under drying-wetting environments[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(10)：2 148-2 159.(in Chinese))
[6]	CHEN L，ZHAO Y，BAI H，et al. Role of montmorillonite，kaolinite，or illite in pyrite flotation：Differences inclay behavior-based on their structures[J]. Langmuir，2020，36(36)：10 860-10 867.
[7]	谭罗荣，孔令伟. 特殊岩土工程土质学[M]. 北京：科学出版社，2006：75-78.(TAN Luorong，KONG Lingwei. Soil science of special geotechnical engineering[M]. Beijing：Science Press，2006：75-78.(in Chinese))
[8]	马俊杰，秦立涛，杨雨佳，等. 改性膨胀土胀缩变形的研究进展[J]. 土木工程，2023，(2)：185-194.(MA Junjie，QIN Litao，YANG Yujia，et al. Research progress on swelling shrinkage deformation of modified expansive soil[J]. Hans Journal of Civil Engineering，2023，(2)：185-194.(in Chinese))
[9]	KHOURY H N. Review of clays and clay minerals in Jordan[J]. Arabian Journal of Geosciences，2019，12(23)：706.
[10]	JIANG N J，WANG Y J，CHU J，et al. Bio-mediated soil improvement：An introspection into processes，materials，characterization and applications[J]. Soil Use and Management，2022，38(1)：68-93.
[11]	喻成成，卢正，姚海林，等. 微生物诱导碳酸钙沉淀改性膨胀土试验研究[J]. 岩土力学，2022，43(增1)：157-163.(YU Chengcheng，LU Zheng，YAO Hailin，et al. Experimental study of modifying expansive soils using microbial induced calcite precipitation[J]. Rock and Soil Mechanics，2022，43(Supp.1)：157-163.(in Chinese))
[12]	斯日古楞，李驰，周团结. 基于MICP技术的生物岩土材料强度性能及碳酸钙结晶过程优化[J]. 应用基础与工程科学学报，2021，29(6)：1 403-1 417.(BAI Siriguleng，LI Chi，ZHOU Tuanjie. Study on strength properties of bio-geomaterial and optimization of crystallization process based on MICP technology[J]. Journal of Basic Science and Engineering，2021，29(6)：1 403-1 417.(in Chinese))
[13]	刘汉龙，张宇，郭伟，等. 微生物加固钙质砂动孔压模型研究[J]. 岩石力学与工程学报，2021，40(4)：790-801.(LIU Hanlong，ZHANG Yu，GUO Wei，et al. A prediction model of dynamic pore water pressure for MICP-treated calcareous sand[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(4)：790-801.(in Chinese))
[14]	刘汉龙，赵常，肖杨. 微生物矿化反应原理、沉积与破坏机制及理论：研究进展与挑战[J]. 岩土工程学报，2024，46(7)：1 347-1 358.(LIUHanlong，ZHAO Chang，XIAO Yang. Reaction principle，deposition and failure mechanisms and theory of biomineralization：progress and challenges[J]. Chinese Journal of Geotechnical Engineering，2024，46(7)：1 347-1 358.(in Chinese))
[15]	魏然，张丽雅，肖智睿，等. 基于MICP技术的膨胀土变形控制机制研究[J]. 岩土工程学报，2023，45(增1)：92-96.(WEI Ran，ZHANG Liya，XIAO Zhirui，et al. Deformation and control mechanismof MICP-treated expansive soil[J]. Chinese Journal of Geotechnical Engineering，2023，45(Supp.1)：92-96.(in Chinese))
[16]	STOCK-FISHER S，GALINAT J K，BANG S S. Microbiological precipitation of CaCO3[J]. Soil Biology and Biochemistry，1999，31(11)：1 563-1 571.
[17]	SEKI，MIYAZAKI，NAKANO. Effects of microorganisms on hydraulic conductivity decrease in infiltration[J]. European Journal of Soil Science，1998，49(2)：231-236.
[18]	WU R，YAO F， LI X，et al. Manganese pollution and its remediation：a review of biological removal and promising combination strategies[J]. Microorganisms，2022，10(12)：2 411.
[19]	KIM J，DONG H，YANG K，et al. Naturally occurring，microbially induced smectite-to-illite reaction[J]. Geology，2019，47(6)：535-539.
[20]	ZHANG G，KIM J，DONG H，et al. Microbial effects in promoting the smectite to illite reaction：Role of organic matter intercalated in the interlayer[J]. American Mineralogist，2007，92(8/9)：1 401-1 410.
[21]	朱云，鲁安怀，李艳，等. 硅酸盐细菌作用对蒙脱石结构影响初探[J]. 矿物学报，2010，30(增1)：224-225.(ZHU Yun，LU Anhuai，LI Yan，et al. Effect of silicatebacteria on the structure of montmorillonite[J]. Acta Mineralogica Sinica，2010，30(Supp.1)：224-225.(in Chinese))
[22]	代群威，王维富，赵玉连，等. 蒙脱石-碳酸盐矿化菌对Sr2+的联合去除作用研究[J]. 原子能科学技术，2023，57(3)：485-492.(DAI Qunwei，，WANG Weifu，ZHAO Yulian，et al. Combined removal of Sr2+ by montmorillonite-carbonate mineralizing bacteria[J]. Atomic Energy Science and Technology，2023，57(3)：485-492.(in Chinese))
[23]	SOUTHAM G. Bacterial surface-mediated mineral formation[J]. Environmental Microbe-metal Interactions，2000：257-276.
[24]	张艳. 蒙脱石定量分析中0.448 nm特征峰的应用研究[J]. 中国非金属矿工业导刊，2021，(4)：67-70.(ZHANG Yan. Study on the Application of 0.448nm characteristic peak in quantitative analysis of montmorillonite[J]. China Non-metallic Minerals Industry，2021，(4)：67-70.(in Chinese))
[25]	姚艳红，阚玉和，王思宏，等. X-射线K值法测定硅铁中硅的含量[J]. 分析化学，2002，(5)：639.(YAO Yanhong，KAN Yuhe，WANG Sihong，et al. Determination of silicon content in ferrosilicon by X-ray K value method[J]. Chinese Journal of Analytical Chemistry，2002，(5)：639.(in Chinese))
[26]	朱婷婷，范健，陆现彩，等. 门多萨假单胞菌-蒙脱石相互作用的实验研究[J]. 矿物岩石地球化学通报，2011，30(3)：304-310.(ZHU Tingting，FAN Jian，LU Xiancai，et al. Experimental study on the interaction between Pseudomonas Mendocina and Montmorillonite[J]. Bulletin of Mineralogy，Petrology and Geochemistry，2011，30(3)：304-310.(in Chinese))
[27]	SU H，XIAO H，LI Z，et al. Experimental study on microstructure evolution and fractal features of expansive soil improved by MICP method[J]. Frontiers in Materials，2022，9：842887.
[28]	EBERL D，VELDE B，Mccormick T. Synthesis of illite-smectite fromsmectite at earth surface temperatures and high pH[J]. Clay Minerals，1993，28(1)：49-60.
[29]	EBERL D，HOWER J. Kinetics of illite formation[J]. Geological Society of America Bulletin，1976，87(9)：1 326-1 330.
[30]	田稼，吴小杰，孙超，等. 胶质芽孢杆菌 (Bacillus mucilaginosus) 的研究进展[J]. 中国土壤与肥料，2017，(6)：15-22.(TIAN Jia，WU Xiaojie，SUN Chao，et al. Research progress on Bacillus mucilaginosus[J]. Soil and Fertilizer Sciences in China，2017，(6)：15-22.(in Chinese))
[31]	BOLES J R，FRANKS S G. Clay diagenesis in Wilcox sandstones of Southwest Texas；implications of smectite diagenesis on sandstone cementation[J]. Journal of Sedimentary Research，1979，49(1)：55-70.
	HUANG W L，LONGO J M，PEVEAR D R. An experimentally derived kinetic model for smectite-to-illite conversion and its use as a geothermometer[J]. Clays and Clay Minerals，1993，41(2)：162-177