Advanced Search
  • Indexed in Scopus
  • Source Journal for Chinese Scientific and Technical Papers and Citations
  • Included in A Guide to the Core Journal of China
  • Indexed in Ei Compendex
Volume 35 Issue 2
Turn off MathJax
Article Contents
Abstract
References
Related Articles
JIANG Ming-jing, ZHU Fang-yuan, SHEN Zhi-fu. Influence of back pressure on macro-mechanical properties of methane hydrate soils by DEM analyses[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(2): 219-226.
Citation: JIANG Ming-jing, ZHU Fang-yuan, SHEN Zhi-fu. Influence of back pressure on macro-mechanical properties of methane hydrate soils by DEM analyses[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(2): 219-226.
shu

Influence of back pressure on macro-mechanical properties of methane hydrate soils by DEM analyses

  • 1. Department of Geotechnical Engineering, College of Civil Engineering, Tongji University, Shanghai 200092, China; 2. Key Laboratory of Geotechnical & Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China

More Information
  • Received Date: November 29, 2011
  • Published Date: March 06, 2013
    Abstract
  • Back pressure is extensively applied in triaxial tests to improve sample saturation and has been identified irrelevant to the strength of saturated soils. However, the influence of back pressure on macro-mechanical properties of methane hydrate soils has been shown by other researchers. This paper aims to further investigate the geotechnical paradox. Firstly, the mechanism of the back pressure effect on mechanical properties of methane hydrate soils is studied according to its microstructure. Secondly, DEM biaxial tests incorporating the micro contact model of methane hydrate soils are performed to examine the proposed mechanism. Finally, 20 DEM biaxial tests are simulated to discuss the specific influence of back pressure on macro-mechanical properties of methane hydrate soils. The results show that the influence of back pressure is related to the properties of methane hydrate. The back pressure improves the shear strength, increases the tendency of strain softening, and dilatancy and affects the elastic parameters of methane hydrate soils. In addition, when the back pressure is high, the influence on strength parameters can not be ignored while the influence on elastic parameters of methane hydrate soils is negligible.
    • FullText(HTML)
    • References (27)
  • [1]
    COLLETT T S, KUUSKRAA V A, ARLINGTON V A. Hydrates contain vast store of world gas resources[J]. Oil and Gas Journal, 1998,96(19):90-95.
    [2]
    KVENVOLDEN K A. Methane hydrate—a major reservoir of carbon in the shallow geosphere? [J]. Chemical Geology, 1988,71(1/2/3):41-51.
    [3]
    KVENVOLDEN K A, LORENSON T D. The global occurrence of natural gas hydrate[J]. Geophysical Monograph, 2001,124(322):3-18.
    [4]
    YU F, SONG Y C, LIU W G,et al. Analyses of stress strain behavior and constitutive model of artificial methane hydrate[J]. Journal of Petroleum Science and Engineering, 2011,77:183-188.
    [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]
    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.
    [7]
    HYODO M, YONEDA J, YOSHIMOTO N,et al. Mechanical and dissociation properties of methane hydrate - bearing sand in deep seabed[J]. Soils and Foundations, 2012,in press.
    [8]
    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 15th International Offshore and Polar Engineering Conference. Seoul, Korea,2005:364-369.
    [9]
    WAITE W F, KNEAFSESY T J, WINTERS W J,et al. Physical property changes in hydrate-bearing sediments to depressurization and subsequent repressurization[J]. Journal of Geophysical Research, 2008,113:B07102.
    [10]
    WINTERS W J, PECHER I A, WAITE W F,et al. Physical properties and rock physics models of sediment containing natural and laboratory-formed methane gas hydrate[J]. American Mineralogist, 2004,89(8/9):1221-1227.
    [11]
    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]// Proceedings of the 6th International Conference on Gas Hydrate. Vancouver, British Columbia,Canada, 2008.
    [12]
    KINGSTON E, CLAYTON C, PRIEST J. Gas hydrate growth morphologies and their effect on the stiffness and damping of a hydrate bearing sand[C]//Proceedings of the 6th International Conference on Gas Hydrate. Vancouver, British Columbia,Canada, 2008.
    [13]
    MIYAZAKI K, MASUI A, HANEDA H,et al. Variable- compliance-type constitutive model for methane hydrate bearing sediment[C]//Proceedings of the 6th International Conference on Gas Hydrate. Vancouver, British Columbia,Canada, 2008.
    [14]
    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.
    [15]
    张旭辉,王淑云,李清平,等. 天然气水合物沉积物力学性质的试验研究[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, 2010, 31(10)
    [16]
    CLAYTON C R I, PRIEST J A, BEST A I. The effects of disseminated methane hydrate on the dynamic stiffness and damping of a sand[J]. Géotechnique, 2005,55(6):423-434.
    [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.
    The obtain of micro-contact model and bond parameters for the deep-sea energy soil[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(9):1574-1583. (in Chinese))
    [18]
    蒋明镜,肖 俞,朱方园. 深海能源土宏观力学性质的离散元数值模拟分析[J]. 岩土工程学报, 2012,待刊. (JIANG Ming-jing, XIAO Yu, ZHU Fang-yuan. Numerical simulation of macro-mechanical properties of deep-sea methane hydrate soils by DEM[J]. Chinese Journal of Geotechnical Engineering, 2012, in press. (in Chinese))
    [19]
    OKA F. Validity and limits of the effective stress concept in geomechanics[J]. Mechanics of Cohesive-frictional Materials, 1996,1(2):219-234.
    [20]
    SONG Y C, YU F, LI Y H,et al. Mechanical property of artificial methane hydrate under triaxial compression[J]. Journal of Natural Gas Chemistry, 2010,19(3):246-250.
    [21]
    NABESHIMA Y, MATSUI T. Static shear behaviors of methane hydrate and ice[C]//Proceedings of the 5th Oceanic Mining Symposium. Tsukuba, Japan,2003:156-159.
    [22]
    STERN L A, KIRBY S H. Polycrystalline methane hydrate: synthesis from superheated ice, and low-temperature mechanical properties[J]. Energy & Fuels, 1998,12(2):201-211.
    [23]
    JIANG M J, YU H S, LEROUEIL S. A simple and efficient approach to capturing bonding effect in naturally microstructured sands by discrete element method[J]. International Journal for Numerical Methods in Engineering, 2007,69(6):1158-1193.
    [24]
    肖 俞,蒋明镜,孙渝刚. 考虑简化胶结模型的深海能源土宏观力学性质离散元数值模拟分析[J]. 岩土力学, 2011,32(增刊1):755-760. (XIAO Yu, JIANG Ming-jing, SUN Yu-gang.
    Numerical simulation of macromechanical properties of deep-sea energy soil by discrete element method under simplified bond model[J]. Rock and Soil Mechanics, 2011, 32(S1): 755-760. (in Chinese))
    [25]
    JIANG M J, YU H S, HARRIS D. Bonding rolling resistance and its effect on yielding of bonded granulates by DEM analyses[J]. International Journal for Numerical and Analytical Methods Geomechanics, 2006,30(8):723-761.
    [26]
    JIANG M J, KONRAD J M, LEROUEIL S. An efficient technique for generating homogeneous specimens for DEM studies[J]. Computers and Geotechnics, 2003,30(7):579-597.
    [27]
    沈珠江. 理论土力学[M]. 北京: 中国水利水电出版社, 2000:291. (SHEN Zhu-jiang. Theoretical soil mechanics[M]. Beijing:ChinaWater Power Press, 2000
    • Related Articles

  • Related Articles

    [1]ZHANG Kun-yong, LI Guang-shan, MEI Xiao-hong, DU Wei. Stress-deformation characteristics of silty soil based on K0 consolidation and drainage unloading stress path tests[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(7): 1182-1188. DOI: 10.11779/CJGE201707003
    [2]WU Ting-yu, GUO Lin, CAI Yuan-qiang, WANG Jun. Deformation behavior of K0-consolidated soft clay under traffic load-induced stress paths[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(5): 859-867. DOI: 10.11779/CJGE201705010
    [3]ZHANG Wei-min, GU Xing-wen. General solution to one-dimentional consolidation theories and simple computation method for consolidation settlement[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(1): 35-42. DOI: 10.11779/CJGE201601002
    [4]GUI Yue, YU Zhi-hua, LIU Hai-ming, CAO Jing, WANG Zhao-chang. Secondary consolidation properties and mechanism of plateau lacustrine peaty soil[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(8): 1390-1398. DOI: 10.11779/CJGE201508005
    [5]SHEN Yang, LI Hai-long, FEI Zhong-qiu, LIU Han-long. Secondary consolidation properties of dredger fill with over liquid limit at primary consolidation stage[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 522-527.
    [6]LEI Hua-yang, ZHANG Wen-zhen, DING Xiao-dong, WANG Xue-chao, CHEN Li, HUANG Mao-song. Experimental study on secondary consolidation considering structural strength of clay[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(7): 1221-1227.
    [7]Deformation mechanism of secondary consolidation of natural clays[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(7).
    [8]YU Xiangjuan, YIN Zongze, DONG Weijun. Influence of load on secondary consolidation deformation of soft soils[J]. Chinese Journal of Geotechnical Engineering, 2007, 29(6): 913-916.
    [9]YIN Zongze, ZHANG Haibo, ZHU Jungao, LI Guowei. Secondary consolidation of soft soils[J]. Chinese Journal of Geotechnical Engineering, 2003, 25(5): 521-526.
    [10]Li Zuoqin. Time-Dependent Deformation of Consolidation in Clay[J]. Chinese Journal of Geotechnical Engineering, 1992, 14(6): 60-68.

Catalog

    SHEN Zhi-fu

    • 1. Department of Geotechnical Engineering, College of Civil Engineering, Tongji University, Shanghai 200092, China; 2. Key Laboratory of Geotechnical & Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China

    1. On this Site
    2. On Google Scholar
    3. On PubMed
    Get Citation
    PDF
    XML
    Article views (982) PDF downloads (454) Cited by()
    Related
    Website Copyright © 2010 Nanjing Hydraulic Research Institute 苏ICP备05007122号-11公安联网备案号：32010602011255
    Editorial Office address：34 Hujuguan,Nanjing 210024,ChinaPostal Code：210024Tel：025-85829534，85829556E-mail: ge@nhri.cn

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return