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| Effect of particle gradation on shear characteristics of Yellow River silt reinforced by soybean urease induced calcium carbonate precipitation |
| WANG Yuke1, 2, 3, WU Jie1, 2, 3, CHEN Hao1, 2, 3 |
(1. School of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou, Henan 450001, China; 2. National Local Joint Engineering Laboratory of Major Infrastructure Testing and Rehabilitation Technology, Zhengzhou, Henan 450001, China;
3. Provincial and Ministerial Collaborative Innovation Center for Underground Engineering Disaster Prevention and Control, Zhengzhou, Henan 450001, China)
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Abstract The Yellow River silt is widely utilized as subgrade fill material; however, it exhibits low strength, poor compactability, and significant variability in particle gradation, which undermines subgrade stability in highway construction. This study employed soybean urease induced calcium carbonate precipitation (SICP) to enhance the mechanical properties of the silt. Consolidated drained triaxial shear tests were conducted, along with measurements of calcium carbonate content and scanning electron microscopy (SEM) analyses, to investigate the influence of particle gradation, characterized by the coefficient of uniformity ( ) and the curvature coefficient ( ), as well as varying levels of cementation (uncemented, lightly cemented, and moderately cemented) on the shear characteristics of SICP-treated specimens. The following conclusions can be drawn: (1) The shear characteristics of Yellow River silt with different particle gradations is significantly improved by SICP treatment. Higher levels of cementation lead to increased shear strength and more pronounced dilatancy. (2) The reinforcement effect of SICP is notably affected by and . The peak deviator stress ( ) of the treated Yellow River silt increases with rising and initially increases before decreasing as increases. (3) The calcium carbonate content in the SICP-treated specimens is significantly influenced by and , with the highest proportion of effective calcium carbonate precipitation observed at = 5.71 and = 0.89. Considering the impact of particle gradation on the efficiency of SICP treatment, an empirical relationship has been established among the shear strength parameters, gradation parameters, and calcium carbonate content. This relationship serves as a reference for the application of SICP in reinforcing fine-grained subgrade soils.
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[1] 王钰轲，蒋 睿，贾朝军，等. 长期循环荷载下黄泛区黄河泥沙的变形特性及安定性分析[J]. 铁道科学与工程学报，2024，21(5)： 1 866–1 875.(WANG Yuke，JIANG Rui，JIA Chaojun，et al. Deformation and shakedown analysis of river silt under long-term cyclic loads in Yellow River flooding area[J]. Journal of Railway Science and Engineering，2024，21(5)：1 866–1 875.(in Chinese))
[2] 王钰轲，陈宇源，邵景干，等. 考虑不同初始状态的黄河泥沙三轴静力剪切特性试验[J]. 工程科学学报，2023，45(10)：1 782–1 794. (WANG Yuke，CHEN Yuyuan，SHAO Jinggan，et al. Experimental study on the triaxial static shear characteristics of Yellow River silt under different initial states[J]. Chinese Journal of Engineering，2023，45(10)：1 782–1 794.(in Chinese))
[3] 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))
[4] 王钰轲，陈 浩，宋迎宾，等. 大豆脲酶诱导碳酸钙固化黄河泥沙水稳定性试验研究[J]. 水利学报，2024，55(1)：71–79.(WANG Yuke，CHEN Hao，SONG Yingbin，et al. Experimental study on water stability of Yellow River silt solidified by soybean-urease induced carbonate precipitation[J]. Journal of Hydraulic Engineering，2024，55(1)：71–79.(in Chinese))
[5] TANG C，YIN L，JIANG N，et al. Factors affecting the performance of microbial-induced carbonate precipitation(MICP) treated soil：a review[J]. Environmental Earth Sciences，2020，79(5)：94.
[6] DHAMI N，REDDY M，MUKHERJEE A. Biomineralization of calcium carbonate polymorphs by the bacterial strains isolated from calcareous sites[J]. Journal of Microbiology and Biotechnology，2013，23(5)：707–714.
[7] KIDANEMARIAM T，GEBRU K，GEBRETINSAE H. A mini review of enzyme-induced calcite precipitation (EICP) technique for eco-friendly bio-cement production[J]. Environmental Science and Pollution Research，2024，31(11)：17 033–17 051.
[8] 彭 劼，冯清鹏，孙益成. 温度对微生物诱导碳酸钙沉积加固砂土的影响研究[J]. 岩土工程学报，2018，40(6)：1 048–1 055. (PENG Jie，FENG Qingpeng，SUN Yicheng. Influences of temperatures on MICP-treated soils[J]. Chinese Journal of Geotechnical Engineering，2018，40(6)：1 048–1 055.(in Chinese))
[9] KEYKHA H，ASADI A，ZAREIAN M. Environmental factors affecting the compressive strength of microbiologically induced calcite precipitation-treated soil[J]. Geomicrobiology Journal，2017，34(10)：889–894.
[10] 王钰轲，曹天才，宋迎宾，等. 基于菌促方法和酶促方法的黄河泥沙加固参数试验研究[J]. 浙江大学学报：工学版，2023，57(6)：1 100–1 110.(WANG Yuke，CAO Tiancai，SONG Yingbin，et al. Experimental study on solidification parameters of Yellow River silt based on bacteria-induced and enzyme-induced methods[J]. Journal of Zhejiang University：Engineering Science，2023，57(6)：1 100–1 110.(in Chinese))
[11] 田 威，云 伟，党可欣，等. 不同钙源EICP溶液改良路基黄土动力特性研究[J]. 材料导报，2024，38(9)：57–65.(TIAN Wei，YUN Wei，DANG Kexin，et al. Study on dynamic characteristics of subgrade loess improved by EICP solution with different calcium sources[J]. Materials Reports，2024，38(9)：57–65.(in Chinese))
[12] 崔明娟，郑俊杰，赖汉江. 菌液注射方式对微生物固化砂土动力特性影响试验研究[J]. 岩土力学，2017，38(11)：3 173–3 178. (CUI Mingjuan，ZHENG Junjie，LAI Hanjiang. Effect of method of biological injection on dynamic behavior for bio-cemented sand[J]. Rock and Soil Mechanics，2017，38(11)：3 173–3 178.(in Chinese))
[13] 许鹏旭，温智力，杨司盟，等. 不同颗粒尺寸条件下MICP固化砂土的试验研究[J]. 高校地质学报，2021，27(6)：738–745.(XU Pengxu，WEN Zhili，YANG Simeng，et al. Experimental investigation in MICP solidified sands of different particle sizes[J]. Geological Journal of China Universities，2021，27(6)：738–745.(in Chinese))
[14] MORTENSEN B，HABER M，DEJONG J，et al. Effects of environmental factors on microbial induced calcium carbonate precipitation[J]. Journal of Applied Microbiology，2011，111(2)：338–349.
[15] 梁仕华，曾伟华，陈俊涛，等. 纤维对微生物固化不同颗粒粒径砂土强度影响试验研究[J]. 工业建筑，2018，48(7)：27–32. (LIANG Shihua，ZENG Weihua，CHEN Juntao，et al. Experimental research on the effect of fiber on bio-cemented sand with different particle sizes[J]. Industrial Construction，2018，48(7)：27–32.(in Chinese))
[16] KONSTANTINOU C，BISCONTIN G，JIANG N，et al. Application of microbially induced carbonate precipitation to form bio-cemented artificial sandstone[J]. Journal of Rock Mechanics and Geotechnical Engineering，2021，13(3)：579–592.
[17] 赖汉江，刘润明，陈志波，等. 粒径效应对大豆粗脲酶固化砂土效果的影响[J]. 岩土力学，2024，45(增1)：25–32.(LAI Hanjiang，LIU Runming，CHEN Zhibo，et al. Effect of grain size on biocementation of sand using crude soybean urease[J]. Rock and Soil Mechanics，2024，45(Supp.1)：25–32.(in Chinese))
[18] 斯日古楞，毕力贡，李 驰. 砂土基MICP土工材料剪切强度试验及可靠性分析[J]. 防灾减灾工程学报，2018，38(5)：795–800. (SIRI Guleng，BI Ligong，LI Chi. Shear strength testing and reliability analysis on MICP-treated geomaterial of sandy parent soil[J]. Journal of Disaster Prevention and Mitigation Engineering，2018，38(5)：795–800.(in Chinese))
[19] 单 毅，平阳泽，袁 杰，等. 基于颗粒尺寸与级配的微生物固化钙质砂最大动剪切模量试验研究[J]. 岩石力学与工程学报，2024，43(10)：2 455–2 465.(SHAN Yi，PING Yangze，YUAN Jie，et al. Experimental study on maximum dynamic shear modulus of MICP-treated calcareous sand based on particle size and gradation[J]. Chinese Journal of Rock Mechanics and Engineering，2024，43(10)：2 455–2 465.(in Chinese))
[20] SIMATUPANG M，OKAMURA M，HAYASHI K，et al. Small-strain shear modulus and liquefaction resistance of sand with carbonate precipitation[J]. Soil Dynamics and Earthquake Engineering，2018，115：710–718.
[21] CHENG L，SHAHIN M，MUJAH D. Influence of key environmental conditions on microbially induced cementation for soil stabilization[J]. Journal of Geotechnical and Geoenvironmental Engineering，2017，143(1)：0001586.
[22] MAHAWISH A，BOUAZZA A，GATES W. Effect of particle size distribution on the bio-cementation of coarse aggregates[J]. Acta Geotechnica，2018，13(4)：1 019–1 025.
[23] 梁仕华，曾伟华，龚 星，等. 颗粒级配对微生物固化砂土力学性能的影响[J]. 人民长江，2020，51(2)：179–183.(LIANG Shihua，ZENG Weihua，GONG Xing，et al. Influence of particle gradation on mechanical properties of MICP-treated sand[J]. Yangtze River，2020，51(2)：179–183.(in Chinese))
[24] AHENKORAH I，RAHMAN M，KARIM M，et al. Enzyme induced calcium carbonate precipitation and its engineering application：A systematic review and meta-analysis[J]. Construction and Building Materials，2021，308：125000.
[25] XIAO Y，ZHAO C，SUN Y，et al. Compression behavior of MICP-treated sand with various gradations[J]. Acta Geotechnica，2021，16(5)：1 391–1 400.
[26] GAO Y，HE J，TANG X，et al. Calcium carbonate precipitation catalyzed by soybean urease as an improvement method for fine-grained soil[J]. Soils and Foundations，2019，59(5)：1 631–1 637.
[27] CHENG G，LIN H，CHAICHI A，et al. Mechanical behavior and biogeochemical reactions of a fine-grained soil treated by microbially induced carbonate precipitation[J]. Journal of Materials in Civil Engineering，2023，35(4)：04023023.
[28] HE J，GAO Y，GU Z，et al. Characterization of crude bacterial urease for CaCO3 precipitation and cementation of silty sand[J]. Journal of Materials in Civil Engineering，2020，32(5)：04020071.
[29] ARPAJIRAKUL S，PUNGRASMI W，LIKITLERSUANG S. Efficiency of microbially-induced calcite precipitation in natural clays for ground improvement[J]. Construction and Building Materials，2021，282：122722.
[30] 黎桉君，刘 鹏，张 静，等. 新型EICP注浆固化砂质黏性紫色土力学性能试验研究[J]. 岩土工程学报，2024，46(11)：2 429– 2 438.(LI Anjun，LIU Peng，ZHANG Jing，et al. Experimental study on mechanical properties of sandy clayey purple soil cemented by a new EICP grouting method[J]. Chinese Journal of Geotechnical Engineering，2024，46(11)：2 429–2 438.(in Chinese))
[31] HUSSAIN M，SAIF A. Evaluating strength and erosion resistance of EICP-Stabilised silt using soybeans crude extract as urease source[J]. Geomechanics and Geoengineering-an International Journal，2025，20(3)：514–534.
[32] 吴 敏，高玉峰，何 稼，等. 大豆脲酶诱导碳酸钙沉积与黄原胶联合防风固沙室内试验研究[J]. 岩土工程学报，2020，42(10)： 1 914–1 921.(WU Min，GAO Yufeng，HE Jia，et al. Laboratory study on use of soybean urease-induced calcium carbonate precipitation with xanthan gum for stabilization of desert sand against wind erosion[J]. Chinese Journal of Geotechnical Engineering，2020，42(10)：1 914–1 921.(in Chinese))
[33] WHIFFIN V. Microbial CaCO3 precipitation for the production of biocement[Thesis][D]. Perth：Murdoch University，2004.
[34] GITANJALI A，JHUO Y，YEH F，et al. Bio-cementation of sand using enzyme-induced calcite precipitation: Mechanical behavior and microstructural analysis[J]. Construction and Building Materials，2024，417：135360.
[35] 中华人民共和国行业标准编写组. JTG 3430—2020 公路土工试验规程[S]. 北京：人民交通出版社，2020.(The Professional Standards Compilation Group of People?s Republic of China. JTG 3430—2020 Test methods of soils for highway engineering[S]. Beijing：China Communications Press，2020.(in Chinese))
[36] MA S，SONG Y，LIU J，et al. Extended wet sieving method for determination of complete particle size distribution of general soils[J]. Journal of Rock Mechanics and Geotechnical Engineering，2024，16(1)：242–257.
[37] FENG K，MONTOYA B. Influence of confinement and cementation level on the behavior of microbial-induced calcite precipitated sands under monotonic drained loading[J]. Journal of Geotechnical and Geoenvironmental Engineering，2016，142(1)：0001379.
[38] LADD R. Specimen preparation and liquefaction of sands[J]. Journal of the Geotechnical Engineering Division，1974，100(10)：1 180–1 184.
[39] AL QABANY A，SOGA K. Effect of chemical treatment used in MICP on engineering properties of cemented soils[J]. Geotechnique，2013，63(4)：331–339.
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2025, Vol. 44 
