›› 2011, Vol. 32 ›› Issue (7): 1957-1962.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Model test study of inflated anchors in sands

CAO Jia-wen1，PENG Zhen-bin1，PENG Wen-xiang1，HE Zhong-ming2，YIN Quan1   

  1. 1. School of Geosciences and Info-Physics, Central South University, Changsha 410083, China; 2. School of Traffic and Transportation Engineering, Changsha University of Science & Technology, Changsha 410004, China
  • Received:2010-09-27 Online:2011-07-10 Published:2011-06-30

PDF (Chinese)

1714

Abstract: In order to investigate the bearing features of inflated anchors, a series of scaled physical model tests are done in a calibration chamber using dry sands and anchors of various inflation pressures, embedment depths, soil densities, membrane lengths and thicknesses; and the relevant load-displacement curves are obtained. The results show that the inflation pressure, soil density and anchor length are the dominant factors affecting the pullout capacity of the inflated anchor system in sands. The utmost displacement of inflated anchor is mainly from the elastoplastic deformation of the membrane, which reflects the mechanical properties of the membrane during the pullout test. By contrastive analysis with common anchors, it is indicated that the limit tensile load of inflated anchor is 4.3 times of that of the single-blade screw anchor, 1.9 times of that of the double-blade screw anchor. And its ultimate lateral resistance is 2 to 4 times of that of common anchors

Key words: inflated anchor, pullout test, limit load, membrane, displacement

CLC Number: 

  • TU 473
[1] SONG Yi-min, ZHANG Yue, XU Hai-liang, WANG Ya-fei, HE Zhi-jie. Study on creep-slip and stick-slip deformation evolution of rock based on non-uniform characteristics [J]. Rock and Soil Mechanics, 2020, 41(2): 363-371.
[2] JIN Qing, WANG Yi-lin, CUI Xin-zhuang, WANG Cheng-jun, ZHANG Ke, LIU Zheng-yin, . Deformation behaviour of geobelt in weathered rock material-tire shred lightweight soil under pullout condition [J]. Rock and Soil Mechanics, 2020, 41(2): 408-418.
[3] HUANG Yu-hua, XU Lin-rong, ZHOU Jun-jie, CAI Yu, . Calculation of pile-soil stress in pile-net composite foundation based on improved Terzarghi method [J]. Rock and Soil Mechanics, 2020, 41(2): 667-675.
[4] DENG Tao, LIN Cong-yu, LIU Zhi-peng, HUANG Ming, CHEN Wen-jing, . A simplified elastoplastic method for laterally loaded single pile with large displacement [J]. Rock and Soil Mechanics, 2020, 41(1): 95-102.
[5] WANG Zhong-kai, XU Guang-li. Influence range and quantitative prediction of surface deformation during shield tunnelling and exiting stages [J]. Rock and Soil Mechanics, 2020, 41(1): 285-294.
[6] WANG Ti-qiang, WANG Yong-zhi, YUAN Xiao-ming, TANG Zhao-guang, WANG Hai, DUAN Xue-feng. Reliability analysis of acceleration integral displacement method based on shaking table tests [J]. Rock and Soil Mechanics, 2019, 40(S1): 565-573.
[7] WU Shuang-shuang, HU Xin-li, ZHANG Han, ZHOU Chang, GONG Hui, . Field test and calculation method of negative skin friction of rock-socketed piles [J]. Rock and Soil Mechanics, 2019, 40(9): 3610-3617.
[8] DENG Mao-lin, YI Qing-lin, HAN Bei, ZHOU Jian, LI Zhuo-jun, ZHANG Fu-ling, . Analysis of surface deformation law of Muyubao landslide in Three Gorges reservoir area [J]. Rock and Soil Mechanics, 2019, 40(8): 3145-3152.
[9] XU Zi-gang, DU Xiu-li, XU Cheng-shun, HAN Run-bo, QIAO Lei. Research on generalized response displacement method for seismic analysis of underground structures with complex sections [J]. Rock and Soil Mechanics, 2019, 40(8): 3247-3254.
[10] SHEN Hong, LI Xiao, LEI Mei-qing, XU Wen-bo, YU Xiu-ling, . Conception and model test of shear bond supporting system [J]. Rock and Soil Mechanics, 2019, 40(7): 2574-2580.
[11] CHEN Jian-xu, SONG Wen-wu, . Non-limit active earth pressure for retaining wall under translational motion [J]. Rock and Soil Mechanics, 2019, 40(6): 2284-2292.
[12] ZHANG Kui, ZHAO Cheng-gang, LI Wei-hua. Study of the seismic response of the seafloor ground containing soft soil [J]. Rock and Soil Mechanics, 2019, 40(6): 2456-2468.
[13] XU Peng, JIANG Guan-lu, LEI Tao, LIU Qi, WANG Zhi-meng, LIU Yong, . Calculation of seismic displacement of reinforced soil retaining walls considering backfill strength [J]. Rock and Soil Mechanics, 2019, 40(5): 1841-1846.
[14] XU Peng , JIANG Guan-lu , WANG Xun, HUANG Hao-wei , HUANG Zhe, WANG Zhi-meng, . Centrifuge model tests on influence of facing on reinforced soil retaining walls [J]. Rock and Soil Mechanics, 2019, 40(4): 1427-1432.
[15] LU Hua-xi, XU Lu-yao, LIANG Ping-ying, WU Bi-tao. Influence of hill on railway environmental vibration [J]. Rock and Soil Mechanics, 2019, 40(4): 1561-1568.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] CHU Xi-hua, XU Yuan-jie. Studies on transformation from M-C criterion to Drucker-Prager criterions based on distortion energy density[J]. , 2009, 30(10): 2985 -2990 .
[2] LIU Dou-dou, CHEN Wei-zhong, YANG Jian-ping, TAN Xian-jun, ZHOU X. Experimental research on strength characteristic of brittle rock unloading confining pressure[J]. , 2009, 30(9): 2588 -2594 .
[3] ZHANG Xian-wei, WANG Chang-ming, LI Jun-xia, MA Dong-he, CHEN Duo-cai. Variation characteristics of soft clay micropore in creep condition[J]. , 2010, 31(4): 1061 -1067 .
[4] WANG Gui-yao，LI Bin，LUO Jun，FU Hong-yuan. Study of soil-water charactiristics and matric suction measurement device for unsaturated silty soil[J]. , 2010, 31(11): 3678 -3682 .
[5] JIA Qiang, YING Hui-qing, ZHANG Xin. Construction of basement in existing buildings by static bolt-pile[J]. , 2009, 30(7): 2053 -2057 .
[6] LU Jun-fu，WANG Ming-nian，JIA Yuan-yuan，YU Yu， TAN Zhong-sheng. Research on construction time of secondary lining of large section loess tunnel for high-speed railway[J]. , 2011, 32(3): 843 -848 .
[7] DANG Fa-ning , LIANG Xin-yu , TIAN Wei , CHEN Hou-qun. Numerical analysis of size effect on meso-concrete random aggregate model[J]. , 2009, 30(S2): 518 -523 .
[8] WANG Cheng-hua, AN Jian-guo. Numerical analyses of vertical bearing capacity of foundations with enlarged pile group[J]. , 2011, 32(S2): 580 -585 .
[9] FANG Tao , LIU Xin-rong , GENG Da-xin , LUO Zhao , JI Xiao-tuan , ZHENG Ming-xin . Model testing study of vertical bearing behaviors for large diameter pile with variable cross-section (I)[J]. , 2012, 33(10): 2947 -2952 .
[10] LI Jie ，LI Wen-pei ，SHI Cun-cheng ，WANG De-rong ，FAN Peng-xian . Research on stress state of circular openings based on shearing slip[J]. , 2012, 33(11): 3271 -3277 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd