›› 2008, Vol. 29 ›› Issue (11): 3119-3123.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Effect of impact mode on treatment effect of dynamic compaction

TIAN Shui1, WANG Zhao 2   

  1. 1. School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China; 2. School of Civil and Architectural Engineering, Wuhan University, Wuhan 430072, China
  • Received:2007-01-25 Online:2008-11-10 Published:2013-08-07

PDF (PC)

888

Abstract: The practices show that “heavy hammer and low fall” and “light hammer and high fall” give different treatment effects. Considering material nonlinearity, geometric nonlinearity, contact nonlinearity, movement nonlinearity and coupling characters of them etc., large deformation dynamic nonlinear FEM based on explicit time integration is applied to simulating the impact process of dynamic compaction. The trace of soil, maximum collision force, collision duration have been obtained at the same single blow energy but with different combination of height and hammer weight. From the analysis, the efficiency coefficient and the influencing degrees of these soil parameters on the treatment effect are obtained. The results show the conclusion of “heavy hammer and low fall is superior to light hammer and high fall” is conditioned.

Key words: dynamic compaction, finite element method, large deformation, momentum

CLC Number: 

  • TU 443
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
[1] WANG Xiang-nan, LI Quan-ming, YU Yu-zhen, YU Jia-lin, LÜ He, . Simulation of the failure process of landslides based on extended finite element method [J]. Rock and Soil Mechanics, 2019, 40(6): 2435-2442.
[2] ZHOU Xiao-wen, CHENG Li, ZHOU Mi, WANG Qi, . Behavior of ball penetration in clay in centrifuge testing [J]. Rock and Soil Mechanics, 2019, 40(5): 1713-1720.
[3] QIU Min, YUAN Qing, LI Chang-jun, XIAO Chao-chao, . Comparative study of calculation methods for undrained shear strength of clay based on cavity expansion theory [J]. Rock and Soil Mechanics, 2019, 40(3): 1059-1066.
[4] ZHENG An-xing, LUO Xian-qi, CHEN Zhen-hua, . Hydraulic fracturing coupling model of rock mass based on extended finite element method [J]. Rock and Soil Mechanics, 2019, 40(2): 799-808.
[5] CUI Guang-yao, QI Jia-suo, WANG Ming-sheng, . Field test study on large deformation control of surrounding rock of cleaved basalt tunnel [J]. Rock and Soil Mechanics, 2018, 39(S2): 231-237.
[6] YANG Zhong-min , GAO Yong-tao , WU Shun-chuan, CHENG Zi-qiao，. Optimization study of first liner replacement timing of large deformation tunnel based on convergence-constraint principle [J]. , 2018, 39(S1): 395-404.
[7] SONG Jia, GU Quan, XU Cheng-shun, DU Xiu-li，. Implementation of fully explicit method for dynamic equation of saturated soil in OpenSees [J]. , 2018, 39(9): 3477-3485.
[8] SONG Jia, DU Xiu-li, XU Cheng-shun, SUN Bao-yin，. Research on the dynamic responses of saturated porous media-pile foundation-superstructure system [J]. , 2018, 39(8): 3061-3070.
[9] TANG Yu-feng, SHI Fu-qiang, LIAO Xue-yan, ZHOU Shuai, . Determination on flow rules of large deformation analysis of slope using SPH method [J]. , 2018, 39(4): 1509-1516.
[10] LI Ning, GUO Shuang-feng, YAO Xian-chun,. Further study of stability analysis methods of high rock slopes [J]. , 2018, 39(2): 397-406.
[11] LUO Xian-qi, ZHENG An-xing,. Application of extended finite element method in modelling fracture of rock mass [J]. , 2018, 39(2): 728-734.
[12] YANG Zhong-min, GAO Yong-tao, WU Shun-chuan, ZHOU Yu, . Physical model test on large deformation mechanism and key treatment techniques of tunnel [J]. Rock and Soil Mechanics, 2018, 39(12): 4482-4492.
[13] LIU Zhong-yu, ZHANG Jia-chao, ZHENG Zhan-lei, GUAN Cong. Finite element analysis of two-dimensional Biot’s consolidation with Hansbo’s flow [J]. Rock and Soil Mechanics, 2018, 39(12): 4617-4626.
[14] LIU Zhen-ping, DU Gen-ming, CAI Jie, ZHOU Fan, LIU Jian, BIAN Kang，. Seamless coupling method of 3DGIS combined with 3DFEM simulation based on MeshPy [J]. , 2018, 39(10): 3841-3852.
[15] TU Yi-liang, LIU Xin-rong, ZHONG Zu-liang, DU Li-bing, WANG Peng, . The unity of three types of slope failure criteria [J]. , 2018, 39(1): 173-180.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] LIU Gong-xun, LUAN Mao-tian, GUO Ying, WANG Zhong-tao, HE Lin, ZHANG Jun-fe. Experimental study of threshold cyclic stress ratio of undisturbed saturated soft clay in the Yangtze estuary under complex stress conditions[J]. , 2010, 31(4): 1123 -1129 .
[2] WANG Yang, TANG Xiong-jun, TAN Xian-kun, WANG Yuan-han. Mechanism analysis of floor heave in Yunling Tunnel[J]. , 2010, 31(8): 2530 -2534 .
[3] SUN Rui, YUAN Xiao-ming, CHEN Long-wei, CAO Zhen-zhong, LI Yu-run. Comparative analysis of time-frequency curves of acceleration records on liquefaction and non-liquefaction sites[J]. , 2010, 31(10): 3130 -3138 .
[4] GONG Cheng-ming，CHENG Qian-gong，LIU Zheng-ping. Centrifuge model tests on excavation and reinforcement effect of loess slope[J]. , 2010, 31(11): 3481 -3486 .
[5] XIA Yuan-you, YE Hong, LIU Xiao-he, CHEN Jie. Analysis of shear stress along pressure-type anchorage cable in weathered rock mass[J]. , 2010, 31(12): 3861 -3866 .
[6] XU Jin-ming，XIE Zhi-lei，JIA Hai-tao. Simulation of mesomechanical properties of limestone using particle flow code[J]. , 2010, 31(S2): 390 -395 .
[7] ZHENG Hao，LIU Han-long，LEI Yu-hua，REN Lian-wei. Large-scale model test analysis of behaviors of jet grouting (JG) soil-cement-pile strengthened pile under lateral load[J]. , 2011, 32(1): 217 -223 .
[8] ZHANG Jun-wei , LI Jin-ping. Thermal stability analysis of different type embankments in permafrost regions[J]. , 2011, 32(S1): 532 -0537 .
[9] GU Shi-tan , SHI Jian-yong , WANG Chun-qiu , TAN Yun-liang. Theoretical study of core pile load transfer regularity of reinforced mixing pile[J]. , 2011, 32(8): 2473 -2478 .
[10] HE Si-ming , ZHANG Xiao-xi , WANG Dong-po . Study of computation methods of ultimate uplift capacity and determining position of failure surface of uplift piles in layered soil[J]. , 2012, 33(5): 1433 -1437 .
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