• 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
WANG Yong-zhi, WANG Hai, YUAN Xiao-ming, DUAN Xue-feng. Difference characteristics of stress similitude for geotechnical centrifuge modelling and design criteria[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(11): 2148-2154. DOI: 10.11779/CJGE201811023
Citation: WANG Yong-zhi, WANG Hai, YUAN Xiao-ming, DUAN Xue-feng. Difference characteristics of stress similitude for geotechnical centrifuge modelling and design criteria[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(11): 2148-2154. DOI: 10.11779/CJGE201811023

Difference characteristics of stress similitude for geotechnical centrifuge modelling and design criteria

More Information
  • Received Date: March 06, 2017
  • Published Date: November 24, 2018
  • The advantage of geotechnical centrifuge modelling is founded on the exactly similar stress levels and distribution between models and prototypes. To recognize the differences and characterization parameters of stress similitude of model and prototype is of significant value to decreasing systematic errors and optimizing design parameters. Three new concepts of general distributed stress, additional lateral stress and coupling dynamic stress are proposed and defined, by using which the difference characteristics, characterization parameters and design principles of model stress compared to those of prototype are studied. The general distributed stress is represented by the stress error referring to the model height H and the maximum radius Rmax, and as H/Rmax≤0.3 and 0.15, the stress error limits of soil model are less than 10% and 5%. The magnitude of additional lateral stress increases from center section to two width boundaries, and is mainly governed by the model width b, effective radius Ref and effective centrifugal acceleration aef. Selecting 100 kPa as a criterion, the allowable model width limits with varying effective radius for different centrifugal accelerations are proposed. The influence of coupling dynamic stress is evaluated through the ratio of the target stress to the extra stress involving two key parameters of Ref and angular velocity ω. With 10% and 20% as the criteria of the stress ratio, the critical curves of aef-Ref are obtained and if aef≥10g and Ref≥4 m, the influence of coupling dynamic stress can be ignored. The proposed new concepts, characterization parameters and design criteria provide the reference and basis for the parametric design of facilities and soil models and development of quantitative researches.
  • [1]
    汪闻韶. 土体液化与极限平衡和破坏的区别和关系[J]. 岩土工程学报, 2005, 27(1): 1-10.
    (WANG Wen-shao.Distinction and interrelation between liquefaction, state of limit equilibrium and failure of soil mass[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(1): 1-10. (in Chinese))
    [2]
    王永志, 大型动力离心机设计理论与关键技术研究[D]. 哈尔滨: 中国地震局工程力学研究所, 2013.
    (WANG Yong-zhi.Study on design theory and key technology of large dynamic centrifuge[D]. Harbin: Institute of Engineering Mechanics, China Earthquake Administration, 2013. (in Chinese))
    [3]
    KHOSRAVI M, BOULANGER R W, WILSON D W, et al.Dynamic centrifuge tests of soft clay reinforced by soil-cement grids[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2016, 142(7): 1-13.
    [4]
    MASON H B, TROMBETTA N W, CHEN Z, et al.Seismic soil-foundation-structure interaction observed in geotechnical centrifuge experiments[J]. Soil Dynamics and Earthquake Engineering, 2013, 48: 162-174.
    [5]
    SCHOFIELD A N.Cambridge geotechnical centrifuge operation[J]. Géotechnique, 1980, 30(3): 227-268.
    [6]
    朱维新. 土工离心模型试验研究状况[J]. 岩土工程学报, 1986, 8(2): 82-95.
    (ZHU Wei-xin.Centrifuge modelling for geotechnical engineering in the world[J]. Chinese Journal of Geotechnical Engineering, 1986, 8(2): 82-95. (in Chinese))
    [7]
    杜延龄. 土工离心模型试验基本原理及若干基本模拟技术研究[J]. 水利学报, 1993(8): 19-28, 36. (DU Yan-ling. Fundamental principle and some modelling techniques of geotechnical centrifugal model test[J]. Journal of Hydraulic Engineering, 1993(8): 19-28, 36. (in Chinese))
    [8]
    BORES R G, ALMEIDA M M S, ALMEIDA M C F, et al. Centrifuge modelling of a buried pipeline below an embankment[J]. International Journal of Physical Modeling in Geotechnics, 2014, 14(4): 116-127.
    [9]
    HUANG C Y, STARK C P, CAPART H, et al.Coriolis effects in granular flow experiments on a geotechnical centrifuge[C]// The 2nd Asian Conference on Physical Modelling in Geotechnics. Shanghai, 2016: 117-123.
    [10]
    TOBITA T, ASHINO T, REN J, et al.Effect of the radial gravity field on dynamic response of saturated sloping grounds in centrifuge model testing[J], Soil Dynamics and Earthquake Engineering, 2016.
    [11]
    陈丛新. 边坡稳定离心模型试验中离心力分布不均匀的影响[J]. 岩土力学, 1994, 15(4): 39-45.
    (CHEN Cong-xin.The influence of nonuniform distribution of centrifugal force in the centrifugal model test of slope stability[J]. Rock and Soil Mechanics, 1994, 15(4): 39-45. (in Chinese))
    [12]
    杨俊杰, 刘强, 柳飞, 等. 离心模型试验中离心加速度取值误差探讨[J]. 岩土工程学报, 2009, 31(2): 241-246.
    (YANG Jun-jie, LIU Qing, LIU Fei, et al.Discussion on error of centrifugal acceleration in centrifugal model tests[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(2): 241-246. (in Chinese))
    [13]
    DL/T 5102—2013 土工离心模型试验技术规程[S]. 2014.
    (DL/T 5102—2013 Specification for geotechnical centrifuge model test techniques[S]. 2014. (in Chinese))
    [14]
    GB/T50123—1999土工试验方法标准[S]. 1999.
    (GB/T50123—1999 Standard for soil test method[S]. 1999. (in Chinese))
    [15]
    GB50026—2007工程测量规范[S]. 2007. (GB 50026—2007 Code for engineering surveying[S]. 2007. (in Chinese))
    [16]
    BOULANGER R W, IDRISS I M.CPT-based liquefaction triggering procedure[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2016, 142(2): 1-11.
    [17]
    BRANDENBERG S J, WILSON D W, RASHID M M.Weighted residual numerical differentiation algorithm applied to experimental bending moment data[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2010, 136(6): 854-863.
    [18]
    CHIOU B S J, YONGS R R. An NGA model for the average horizontal component of peak ground motion and response spectra[J]. Earthquake Spectra, 2008, 24(1): 173-215.
  • Related Articles

    [1]LIU Ning, GAO Yaohui, CHEN Pingzhi. Relaxation time-space effects of columnar jointed basalt and their control technologies[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(10): 2052-2061. DOI: 10.11779/CJGE20220845
    [2]LIU Bo, FAN Xue-hui, WANG Yuan-yuan, ZHANG Jia-bao, FAN Zhi-bo. Influences of excavation on adjacent existing metro tunnels: a review[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(S2): 253-258. DOI: 10.11779/CJGE2021S2060
    [3]LIU Yan, NIE Shu-min, LIU Tao. Sheltering effect of existing subsurface structures on displacement of retaining wall of foundation pits[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(zk2): 400-403. DOI: 10.11779/CJGE2014S2070
    [4]HUANG Hai-bin, CAO Hong, LIANG Wei-jun, YANG Chun-shan, YE Ya-tu. Design and field measurement of excavation on operating metro tunnels[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(zk1): 148-154. DOI: 10.11779/CJGE2014S1026
    [5]HUANG Xue-feng, MA Long, CHEN Shuai-qiang, KONG Yang. Distribution characteristics and time-space effects of internal force of prestressed anchor rod[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(8): 1521-1525. DOI: 10.11779/CJGE201408019
    [6]SHI Chenghua, PENG Limin, ZHAI Xudong, YANG Weichao. Time-space united calculating method of stratum deformation considering repeated construction and cessation of tunnels[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(6): 859-863.
    [7]SHI Chenghua, PENG Limin, HUANG Juan. Stratum deformation caused by different tunnel excavation steps[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(9): 1303-1308.
    [8]WU Bo, LIU Weining, GAO Bo, SUO Xiaoming, SHI Yuxin. Analysis of space-time effect for urban shallow tunneling by excavation[J]. Chinese Journal of Geotechnical Engineering, 2004, 26(3): 340-343.
    [9]Jiang Pengming, Hu Zhongxiong, Liu Jianhang. Analysis of space time effect on the stability for slurry trench of diaphram wall[J]. Chinese Journal of Geotechnical Engineering, 1999, 21(3): 82-86.

Catalog

    Article views (237) PDF downloads (146) Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return