Model Test of MICP Reinforced Siliceous Sea Sand under Natural Seawater Conditions

  • Lin Wenbin ,
  • Gao Yupeng ,
  • Luo Chenghao ,
  • Lin Wei ,
  • Guo Qiongling
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  • 1. Fujian Provincial Key Laboratory of Advanced Technology and Informatization in Civil Engineering, Fujian University of Technology, Fuzhou 350118, P. R. China;
    2. Institute of Earth Sciences and Engineering, Fujian University of Technology, Fuzhou 350118, P. R. China;
    3. Fujian Yonking Construction Geotechnical Co., Ltd., Longyan, Fujian 364000, P. R. China

Received date: 2024-03-29

  Online published: 2025-01-03

Abstract

A microbially induced calcium carbonate precipitation (MICP) grouting reinforcement system was designed and used to perform model tests on MICP reinforced siliceous sea sand under natural seawater conditions. The test results indicated that sand column Φ25×50 cm in natural seawater environment could be solidified by MICP technology, and the sand column was hard. The non-destructive ultrasonic testing revealed that the middle part of the sand column had the highest density after reinforcement, followed by the lower part, and the upper part was the smallest, and the average values of their axial direction wave velocity were 2.993 km/s, 2.877 km/s, and 2.867 km/s, respectively. The average unconfined compressive strength of the sand column core sample was 13.72 MPa, which was 44.88% higher than that of the material size. The average dry density of the sand column was 1.82 g/cm3, which was 18.18% higher compared to the loose sand sample. The permeability coefficient of the sand column was 4.48E-04 cm/s, two orders of magnitude lower than the original specimen. The deposits formed by MICP technology consisted of cubic and columnar calcite, and needle clusters and irregularly flocculent magnesium calcite. Mineral crystals were mainly distributed on the surface of sand particles and between particles, thus playing a cementation role. This study provides a theoretical basis and empirical data to support the improvement of marine loose sandy foundation soils using MICP.

Cite this article

Lin Wenbin , Gao Yupeng , Luo Chenghao , Lin Wei , Guo Qiongling . Model Test of MICP Reinforced Siliceous Sea Sand under Natural Seawater Conditions[J]. Chinese Journal of Underground Space and Engineering, 2024 , 20(6) : 1960 -1968 . DOI: 10.20174/j.JUSE.2024.06.22

References

[1] Moon J S, Jung H S, Lee S, et al. Ground improvement using dynamic compaction in sabkha deposit[J]. Applied Sciences, 2019, 9(12): 2506.
[2] 吕海波, 汪稔, 孔令伟. 钙质土破碎原因的细观分析初探[J]. 岩石力学与工程学报, 2001, 20(增1): 890-892. (Lü Haibo, Wang Ren, Kong Lingwei. Preliminary mesoscopic analysis on factors of breakage in calcareous soil[J]. Chinese Journal of Rock Mechanics and Engineering, 2001, 20(Supp.1): 890-892. (in Chinese))
[3] Karol R. H. Chemical grouting and soil stabilization[M]. USA: CRC Press, 2003.
[4] 李捷, 方祥位, 申春妮, 等. 含水率对珊瑚砂微生物固化体力学特性影响研究[J]. 工业建筑, 2016, 46(12): 93-97. (Li Jie, Fang Xiangwei, Shen Chunni, et al. Influence of moisture content on mechanical proper ties of biocemented coral sand columns[J]. Industrial Construction, 2016, 46(12): 93-97. (in Chinese))
[5] Mortensen B M,Haber M J, DeJong J T, et al. Effects of environmental factors on microbial induced calcium carbonate precipitation[J]. Journal of Applied Microbiology, 2011, 111(2): 338-349.
[6] Van Paassen L A, Ghose R, Van der Linden T J M, et al. Quantifying biomediated ground improvement by ureolysis: Large-scale biogrout experiment[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2010, 136(12): 1721-1728.
[7] Zomorodian S M A, Ghaffari H, O'Kelly B C. Stabilisation of crustal sand layer using biocementation technique for wind erosion control[J]. Aeolian Research, 2019, 40: 34-41.
[8] Liu S, Yu J, Peng X, et al. Preliminary study on repairing tabia cracks by using microbially induced carbonate precipitation[J]. Construction and Building Materials, 2020, 248: 118611.
[9] Xiao P, Liu H, Xiao Y, et al. Liquefaction resistance of bio-cemented calcareous sand[J]. Soil Dynamics and Earthquake Engineering, 2018, 107: 9-19.
[10] Lei X, Lin S, Meng Q, et al. Influence of different fiber types on properties ofbiocemented calcareous sand[J]. Arabian Journal of Geosciences, 2020, 13: 1-9.
[11] 方祥位, 李晶鑫, 李捷, 等. 珊瑚砂微生物固化体单轴损伤本构模型[J].地下空间与工程学报, 2018, 14(5): 1234-1239. (Fang Xiangwei, Li Jingxin, Li Jie, et al. Damage constitutive model of biocemented coral sand columns under unconfined compression[J]. Chinese Journal of Underground Space and Engineering, 2018, 14(5): 1234-1239. (in Chinese))
[12] 申春妮, 方祥位, 姚志华, 等. 珊瑚砂微生物固化体三轴压缩声发射试验研究[J]. 地下空间与工程学报, 2020, 16(1): 134-140. (Shen Chunni, Fang Xiangwei, Yao Zhihua, et al. Triaxial compression with acoustic emission test of biocemented coral sand[J]. Chinese Journal of Underground Space and Engineering, 2020, 16(1): 134-140. (in Chinese))
[13] 程果, 汪时机, 李贤,等. 微生物固化纤维加筋砂质黏性紫色土试验研究[J].地下空间与工程学报, 2021, 17(6): 1829-1838. (Cheng Guo, Wang Shiji, Li Xian, et al. Experimental study on bio-cemented solidification fiber-reinforced sandy clayey purple soil[J]. Chinese Journal of Underground Space and Engineering, 2021, 17(6): 1829-1838. (in Chinese))
[14] 陈适, 方祥位, 刘汉龙, 等. 微生物珊瑚砂桩单桩复合地基承载特性研究[J]. 地下空间与工程学报, 2019, 15(5) :1475-1481. (Chen Shi, Fang Xiangwei, Liu Hanlong, et al. Study on bearing behavior of microbial coral sand single pile composite foundation[J]. Chinese Journal of Underground Space and Engineering, 2019, 15(5) :1475-1481. (in Chinese))
[15] Cheng L, Shahin M A,Cord-Ruwisch R. Bio-cementation of sandy soil using microbially induced carbonate precipitation for marine environments[J]. Geotechnique, 2014, 64(12): 1010-1013.
[16] 肖瑶, 邓华锋, 李建林, 等. 海水环境下巴氏芽孢杆菌驯化及硅质砂固化效果研究[J]. 岩土力学, 2022, 43(2): 395-404. (Xiao Yao, Deng Huafeng, Li Jianlin, et al. Study on the domestication of sporosarcina pasteurii and strengthening effect of calcareous sand in seawater environment[J]. Rock and Soil Mechanics, 2022, 43(2): 395-404. (in Chinese))
[17] 李昊, 唐朝生, 刘博, 等. 模拟海水环境下MICP固化硅质砂的力学特性[J]. 岩土工程学报, 2020, 42(10): 1931-1939. (Li Hao, Tao Chaosheng, Liu Bo, et al. Mechanical behavior of MICP-cemented calcareous sand in simulated seawater environment[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(10): 1931-1939. (in Chinese))
[18] 刘渊, 张友良, 胡晋宁, 等. 模拟海水环境下MICP固化滨海粉细砂的试验研究[J]. 海南大学学报(自然科学版), 2021, 39(4): 390-396. (Liu Yuan, Zhang Youliang, Hu Jinning, et al. MICP-cemented coastal fine sand in simulated seawater environment[J]. Natural Science Journal of Hainan University, 2021, 39(4): 390-396. (in Chinese))
[19] 杨司盟, 彭劼, 温智力, 等. 浓缩海水作为钙源在微生物诱导碳酸钙加固砂土中的应用[J]. 岩土力学, 2021, 42(3): 746-754. (Yang Simeng, Peng Jie, Wen Zhili, et al. Application of concentrated seawater as calcium source solution in sand reinforcement using MICP[J]. Rock and Soil Mechanics, 2021, 42(3): 746-754. (in Chinese))
[20] 余振兴. 南海岛礁陆域高盐环境珊瑚砂微生物固化技术[D]. 厦门: 华侨大学, 2019. (Yu Zhenxing. Microbial solidification technology of coral sand in high salt environment in south island reef[D]. Xiamen: Huaqiao University, 2019. (in Chinese))
[21] 董博文, 刘士雨, 俞缙, 等. 基于微生物诱导碳酸钙沉淀的天然海水加固硅质砂效果评价[J]. 岩土力学, 2021, 42(4): 1104-1114. (Dong Bowen, Liu Shiyu. Yu Jin, et al. Evaluation of the effect of natural seawater strengthening calcareous sand based on MICP[J]. Rock and Soil Mechanics, 2021, 42(4): 1104-1114. (in Chinese))
[22] 王子玉, 喻文晔, 齐超楠, 等. 海水环境下MICP的反应机理与影响因素[J]. 土木与环境工程学报, 2022, 44(5): 128-135. (Wang Ziyu, Yu Wenye, Qi Chaonan, et, al. Reaction mechanism and influencing factors of MICP in seawater environment[J]. Journal of Civil and Environmental Engineering, 2022, 44(5): 128-135. (in Chinese))
[23] Peng J, Cao T, He J, et al. Improvement of coral sand withmicp using various calcium sources in sea water environment[J]. Frontiers in Physics, 2022, DOI: 10.3389/fphy.2022.825409.
[24] Yu X, Rong H. Seawater based MICP cements two/one-phase cemented sand blocks[J]. Applied Ocean Research, 2022, 118: 102972.
[25] Lin W B, Gao Y P, Lin W, et al. Seawater-based bio-cementation of natural sea sand via microbially induced carbonate precipitation[J]. Environmental Technology & Innovation, 2023, 29:103010.
[26] 中华人民共和国水利部. 土工试验方法标准(GB/T 50123-2019)[S]. 北京: 中国计划出版社, 2019. (Ministry of Water Resources of the People's Republic of China. Standard for geotechnical testing method[S]. Beijing: China Planning Press, 2019. (in Chinese))
[27] Van Paassen L A. Biogrout, ground improvement by microbial induced carbonate precipitation[D]. Delft: Delft University of Technology, 2009.
[28] Cui M J, Zheng J J, Zhang R J, et al. Influence of cementation level on the strength behaviour of bio-cemented sand[J]. Acta Geotechnica, 2017, 12: 971-986.
[29] Porter H, Dhami N K, Mukherjee A. Synergistic chemical and microbial cementation for stabilization of aggregates[J]. Cement and Concrete Composites, 2017, 83: 160-170.
[30] 张国城, 童华炜, 彭秋旺, 等. 镁的引入对微生物加固砂土试验的影响[J]. 科学技术与工程, 2020, 20(26): 10659-10664. (Zhang Guocheng,Tong Huawei,Peng Qiuwang, et al. The effect of magnesium on the experiment of microbial reinforcement of sand[J]. Science Technology and Engineering, 2020, 20(26): 10659-10664. (in Chinese))
[31] 马瑞男, 郭红仙, 陈溪海, 等. 镁离子对微生物砂浆强度影响的研究[J]. 工业建筑, 2018 (10): 121-125. (Ma Ruinan, Guo Hongxian, Chen Xihai, et al. Influence of magnesium ion on the strength of microbial mortar[J]. Industrial Construction, 2018 (10): 121-125. (in Chinese))
[32] 彭劼, 黄慕凡, 谢高强, 等. 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. (Peng Jie, Huang Mufan, Xie Gaoqiang, et al. Grouting method of MICP-treated soil[J]. Journal of Hohai University(Natural Sciences), 2019, 47(3): 259-264. (in Chinese))
[33] 杨建贵, 马昌龙, 彭劼. 注浆管法在微生物诱导碳酸钙沉积加固土体中的应用研究[J]. 河南科学, 2019, 37(1): 105-111. (Yang Jiangui, Ma Changlong, Peng Jie. Grouting method of microbial induced calcite precipitation to soil reinforcement[J]. Henan Science, 2019, 37(1): 105-111. (in Chinese))
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