›› 2018, Vol. 39 ›› Issue (8): 2851-2857.doi: 10.16285/j.rsm.2018.0569

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental study on axial tension response of model monopile in calcareous sand

CHEN Yang1, YANG Min1, WEI Hou-zhen2, LI Wei-chao1, MENG Qing-shan2   

  1. 1. Department of Geotechnical Engineering, College of Civil Engineering, Tongji University, Shanghai 200092, China; 2. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, China
  • Received:2018-04-08 Online:2018-08-11 Published:2018-09-02
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (41502273, 41372316, 41372274), the Program for Young Excellent Talents in Tongji University (2015KJ009) and the Youth Innovation Promotion Association of the Chinese Academy of Sciences (2015272)。

Abstract: Series of model tests are performed in calcareous sand retrieved from the Nansha Islands to investigate the axial tension response of monopile. The effects of the relative density of the ground soil and the embedment length of the monopile on the tension response of monopile are studied in detail. The results show that, the pull-out capacity of the model monopile is improved, as expected, by increasing the relative density of the ground soil and the embedment length of the model monopile. Reducing the relative density or embedment length not only reduces its pull-out capacity, but also increases its displacement under a same tension load as on a pile with a larger embedded depth or in a denser ground. As the depth increases, the axial force developed in the model monopile decreases gradually from the maximum value at the top of monopile to zero at the monopile tip. The increase of relative density affects both the magnitude and the distribution of the ultimate frictional resistance between the model monopile and around soil. 0.1 times the diameter of the monopile can be regarded as the critical displacement for the failure of the tension monopile.

Key words: calcareous sand, monopile, axial tension, model test

CLC Number: 

  • TU 415

[1] ZHANG Lei, HAI Wei-shen, GAN Hao, CAO Wei-ping, WANG Tie-hang, . Study on bearing behavior of flexible single pile subject to horizontal and uplift combined load [J]. Rock and Soil Mechanics, 2020, 41(7): 2261-2270.
[2] HUANG Wei, XIAO Wei-min, TIAN Meng-ting, ZHANG Lin-hao, . Model test research on the mechanical properties of irregular columnar jointed rock masses [J]. Rock and Soil Mechanics, 2020, 41(7): 2349-2359.
[3] ZOU Xin-jun, CAO Xiong, ZHOU Chang-lin, . Model study on the bearing behavior of V-H combined loaded pile in sand considering the current effects [J]. Rock and Soil Mechanics, 2020, 41(6): 1855-1864.
[4] CHENG Yong-hui, HU Sheng-gang, WANG Han-wu, ZHANG Cheng. Study on depth effect of pressuremeter feature parameters in deep buried sand [J]. Rock and Soil Mechanics, 2020, 41(6): 1881-1886.
[5] NING Yi-bing, TANG Hui-ming, ZHANG Bo-cheng, SHEN Pei-wu, ZHANG Guang-cheng, XIA Ding, . Investigation of the rock similar material proportion based on orthogonal design and its application in base friction physical model tests [J]. Rock and Soil Mechanics, 2020, 41(6): 2009-2020.
[6] PU He-fu, PAN You-fu, KHOTEJA Dibangar, ZHOU Yang. Model test on dewatering of high-water-content dredged slurry by flocculation-horizontal vacuum two-staged method [J]. Rock and Soil Mechanics, 2020, 41(5): 1502-1509.
[7] LIU Gong-xun, LI Wei, HONG Guo-jun, ZHANG Kun-yong, CHEN Xiu-han, SHI Shao-gang, RUTTEN Tom. Sandstone failure characteristics in large-scale cutting model tests [J]. Rock and Soil Mechanics, 2020, 41(4): 1211-1218.
[8] TANG Ming-gao, LI Song-lin, XU Qiang, GONG Zheng-feng, ZHU Quan, WEI Yong. Study of deformation characteristics of reservoir landslide based on centrifugal model test [J]. Rock and Soil Mechanics, 2020, 41(3): 755-764.
[9] SONG Ding-bao, PU He-fu, CHEN Bao-guo, MENG Qing-da, . Model test on mechanical behavior of rigid load shedding culvert under high fill [J]. Rock and Soil Mechanics, 2020, 41(3): 823-830.
[10] HOU Gong-yu, HU Tao, LI Zi-xiang, XIE Bing-bing, XIAO Hai-lin, ZHOU Tian-ci, . Experimental study on overburden deformation evolution under mining effect based on distributed fiber optical sensing technology [J]. Rock and Soil Mechanics, 2020, 41(3): 970-979.
[11] WANG Guo-hui, CHEN Wen-hua, NIE Qing-ke, CHEN Jun-hong, FAN Hui-hong, ZHANG Chuan, . Impacts of pit excavation on foundation piles in deep silty soil by centrifugal model tests [J]. Rock and Soil Mechanics, 2020, 41(2): 399-407.
[12] YAN Chao-ping, LONG Zhi-lin, ZHOU Yi-chun, KUANG Du-min, CHEN Jia-min, . Investigation on the effects of confining pressure and particle size of shear characteristics of calcareous sand [J]. Rock and Soil Mechanics, 2020, 41(2): 581-591.
[13] LEI Hua-yang, HU Yao, LEI Shuang-hua, QI Zi-yang, XU Ying-gang, . Analysis of microstructure characteristics of air-booster vacuum preloading for ultra-soft dredger fills [J]. Rock and Soil Mechanics, 2019, 40(S1): 32-40.
[14] YU Yi-fan, WANG Ping, WANG Hui-juan, XU Shu-ya, GUO Hai-tao, . Physical model test of seismic dynamic response to accumulative landslide [J]. Rock and Soil Mechanics, 2019, 40(S1): 172-180.
[15] ZHANG Chen-yang, CHEN Min, HU Ming-jian, WANG Xin-zhi, TANG Jian-jian, . Effect of fine particles content on shear strength of calcareous sand [J]. Rock and Soil Mechanics, 2019, 40(S1): 195-202.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!