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JIANG Ming-jing, LI Lei, ZHOU Ya-ping. Bearing properties of deep-sea methane hydrate-bearing foundation by discrete element method[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(2): 343-350. DOI: 10.11779/CJGE201502019
Citation: JIANG Ming-jing, LI Lei, ZHOU Ya-ping. Bearing properties of deep-sea methane hydrate-bearing foundation by discrete element method[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(2): 343-350. DOI: 10.11779/CJGE201502019

Bearing properties of deep-sea methane hydrate-bearing foundation by discrete element method

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  • Received Date: May 06, 2014
  • Published Date: March 01, 2015
  • The bearing properties of methane hydrate-bearing foundation will be changed by massive exploitation of methane hydrate, which is originally stored in deep-sea methane hydrate-bearing soils and influences the properties of the foundation. Plate loading tests on methane hydrate-bearing foundations with three different hydrate saturations are performed using the micro-bond contact model considering hydrate cementation thickness of the deep-sea methane hydrate-bearing soils proposed by Jiang et al. The bearing properties of methane hydrate-bearing soils are analyzed, the effect of hydrate saturation on the bearing capacity of methane hydrate bearing foundation is studied, and the law of the distribution of base pressure is discussed. The results show that the bearing capacity of methane hydrate-bearing foundation increases with the increase of saturation on the original foundation. The bearing capacity of foundation sharply decreases after the methane hydrate is mined, and the higher the original hydrate saturation is, the more the bearing capacity will lose on the mined methane hydrate-bearing soils; the higher the hydrate saturation is, the closer to vertical downward the p-s curve is after reaching the ultimate bearing capacity. The destruction of the cementations has a critical load, and the foundations with different hydrate saturations follow different failure laws. The hydrate saturation just has little effect on the shape of distribution of the base pressure, but the shapes are markedly different under different settlements.
  • [1]
    HYODO M, NAKATA Y, YOSHIMOTO N, et al. Mechanical behavior of methane hydrate-supported sand[C]// International Symposium on Geotechnical Engineering Ground Improvement and geosynthetics for Human Security and Environmental Preservation. Thailand, 2007: 195-208.
    [2]
    MASUI A, HANEDA H, OGATA Y, et al. Effects of methane hydrate formation on shear strength of synthetic methane hydrate sediments[C]// Proceedings of the 5th International Offshore and Polar Engineering Conference. Seoul, 2005: 29-24.
    [3]
    MIYAZAKI K, MASUI A, SAKAMOTO Y, et al. Triaxial compression properties of artificial methane-hydrate- bearing sediment[J]. Journal of Geophysical Research, 2011, 16: B06102.
    [4]
    刘 芳, 寇晓勇, 蒋明镜, 等. 含水合物沉积物强度特性的三轴试验研究[J]. 岩土工程学报, 2013, 35(8): 1565-1572. (LIU Fang, KOU Xiao-yong, JIANG Ming-jing, et al. The traxial shear strength of synthetic hydrate-bearing sediments[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(8): 1565-1572. (in Chinese))
    [5]
    HYODO M, NAKATA Y, YOSHIMOTO N, et al. Basic research on the mechanical behavior of methane hydrate-sediments mixture[J]. Japanese Geotechnical Society, 2005, 45(1): 75-85.
    [6]
    WAITE W F, WINTERS W J, MASON D H. Methane hydrate formation in partially water-saturated Ottawa sand[J]. American Mineralogist, 2004, 89(8/9): 1202-1207.
    [7]
    SANTAMARINA J C, RUPPEL C. The impact of hydrate saturation on the mechanical, electrical, and thermal proper-ties of hydrate-bearing sand, silts, and clay[C]// The 6th International Conference on Gas Hydrate. Vancouver, 2008.
    [8]
    张旭辉, 王淑云, 李清平, 等. 天然气水合物沉积物力学性质试验研究[J]. 岩土力学, 2010, 31(10): 3069-3074. (ZHANG Xu-hui, WANG Shu-yun, LI Qing-ping, et al. Experimental study of mechanical properties of gas hydrate deposits[J]. Rock and Soil Mechanics, 2011, 31(10): 3069-3074. (in Chinese))
    [9]
    DICKENS G R, PAULL C K, WALLACE P. Direct measurement of in situ methane quantities in a large gas-hydrate reservoir[J]. Nature, 1998, 385(6615): 426-428.
    [10]
    PUPPEL C, BOSWELL R, JONES E. Scintific results from gulf of mexico gas hydrates joint industry project leg 1 drilling: Introduction and overview[J]. Marine and Petroleum Geology, 2008, 25: 819-829.
    [11]
    FRANCISCA F, Yun T S, RUPPEL C, et al. Geophysical and geotechnical properties of near-seafloor sediments in the northern Gulf of Mexico gas hydrate province[J]. Earth and Planetary Science Letters, 2005, 237(3/4): 924-939.
    [12]
    MURRAY D R, KLEINBERG R L, SINHA B K, et al. Saturation, acoustic properties, growth habit, and state of stress a gas hydrate reservoir from well logs[J]. Petrophysics, 2006, 47(2): 129-137.
    [13]
    蒋明镜, 肖 俞, 朱方园. 深海能源土宏观力学性质离散元数值模拟分析[J]. 岩土工程学报, 2013, 35(1): 157-163.(JIANG Ming-jing, XIAO Yu, ZHU Fang-yuan. Numerical simulation of macromechanical properties of deep-sea methane hydrate bearing soils by DEM[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(1): 157-163. (in Chinese))
    [14]
    蒋明镜, 孙渝刚, 李立青. 复杂应力下两种胶结颗粒微观力学模型的试验研究[J]. 岩土工程学报, 2011, 33(3): 354-360. (JIANG Ming-jing, SUN Yu-gang, LI Li-qing. Experimental study on micromechanical model for two different bonded granules under complex stress conditions[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(3): 354-360. (in Chinese))
    [15]
    蒋明镜, 肖 俞, 孙渝刚, 等. 水泥胶结颗粒的微观力学模型试验[J]. 岩土力学, 2012, 33(5): 1293-1300. (JIANG Ming-jing, XIAO Yu, SUN Yu-gang, et al. Experimental investigation on a micromechanical model of cement-bonded particles[J]. Rock and Soil Mechanics, 2012, 33(5): 1293-1300. (in Chinese))
    [16]
    蒋明镜, 周雅萍, 陈 贺. 不同胶结厚度下粒间胶结力学特性的试验研究[J]. 岩土力学, 2013, 34(5): 1264-1273. (JIANG Ming-jing, ZHOU Ya-ping, CHEN He. Experimental study of mechanical behaviors of bonded granules under different bond thicknesses[J]. Rock and Soil Mechanics, 2013, 34(5): 1264-1273. (in Chinese))
    [17]
    蒋明镜, 肖 俞, 朱方园. 深海能源土微观力学胶结模型及参数研究[J]. 岩土工程学报, 2012, 34(9): 1574-1583. (JIANG Ming-jing, XIAO Yu, ZHU Fang-yuan. Micro-bond contact model and its parameters for the deep-sea methane hydrate bearing soil[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(9): 1574-1583. (in Chinese))
    [18]
    JIANG M J, CHEN H, TAPIAS M, ARROYO M. Study of mechanical behavior and strain localization of methane hydrate bearing sediments with different saturations by a new DEM model[J]. Computers and Geotechnics, 2014, 57: 122-138.
    [19]
    蒋明镜, 贺洁, 周雅萍. 考虑水合物胶结厚度的深海能源土粒间胶结模型[J]. 岩土力学, 2014, 35(5): 1231-1240. (JIANG Ming-jing, HE Jie, ZHOU Ya-ping. Micro-bond thickness model in particles considering the bond thickness of deep-sea methane hydrate soil[J]. Rock and Soil Mechanics, 2014, 35(5): 1231-1240. (in Chinese))
    [20]
    蒋明镜, 贺洁, 周雅萍. 基于微观胶结厚度模型的深海能源土宏观力学特性离散元分析[J]. 岩土力学, 2013, 34(9): 2672-2681. (JIANG Ming-jing, HE Jie, ZHOU Ya-ping. Distinct element analysis of macro-mechanical properties of deep-sea methane hydrate-bearing soil using micro-bond thickness model[J]. Rock and Soil Mechanics, 2013, 34(9): 2672-2681. (in Chinese))
    [21]
    JIANG M J, ZHU F Y, LIU F, et al. A bond contact model for methane hydrate bearing sediments with inter-particle cementation[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 2014, 38: 1823-1854.
    [22]
    JIANG M J, SUN Y G, LI L Q, et al. Contact behavior of idealized granules bonded in two different inter-particle distances: an experimental investigation[J]. Mechanics of Materials, 2012, 55: 1-15.
    [23]
    JIANG M J, SUN Y G, XIAO Y. An experimental investigation on the contact behavior between cemented granules[J]. Geotechnical Testing Journal, 2012, 35(5): 678-690.
    [24]
    JIANG M J, KONRAD J M, LEROUEIL S. An efficient technique for generating homogeneous specimens for DEM studies[J]. Computers and Geotechnics, 2003, 30(5): 579-597.
    [25]
    徐光明, 章为民. 离心模型中的粒径效应和边界效应研究[J]. 岩土工程学报, 1996, 18(3): 80-85. (XU Guang-ming, ZHANG Wei-min. A study of size effect and boundary effect in centrifugal tests[J]. Chinese Journal of Geotechnical Engineering, 1996, 18(3): 80-85. (in Chinese))
    [26]
    CRAIG W H. Simulation of foundations for offshore structures using centrifuge modelling[M]// Developments in soil mechanics and foundation engineering: model studies. London: Applied Science Publishiers LTD, 1983.
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