›› 2009, Vol. 30 ›› Issue (12): 3753-3758.

• Geotechnical Engineering • Previous Articles     Next Articles

Study of mechanism of dynamic compaction replacement for reinforcing highway soft roadbed

WANG Hong-xiang1, 2, YAN Shu-wang1, FENG Shou-zhong3   

  1. 1. School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2. Anhui Provincial Communications Investment Group Co., Ltd., Hefei 230011, China; 3. Shanghai Luckly Civil Engineering Co.,Ltd., Shanghai 200092, China
  • Received:2009-05-26 Online:2009-12-10 Published:2010-01-18

PDF (Chinese)

2896

Abstract:

In recent years, the dynamic compaction replacement (DCR) is widely used to consolidate soft soil foundation for its short period and simple construction and so on. But the reinforcement mechanism of DCR hasn’t been well researched; theoretical study is far behind engineering practice; so it is hard to build up the design theory and method. Based on the Haiman expressway project in wetland and by using the finite element method, the mechanism of DCR reinforcing expressway soft roadbed in wetland is studied so as to give some reference to designers.

Key words: soft soil foundation, dynamic compaction replacement, reinforcement mechanism, finite element method, wetland

CLC Number: 

  • TU 472.3+1
[1] SUN Rui, YANG Feng, YANG Jun-sheng, ZHAO Yi-ding, ZHENG Xiang-cou, LUO Jing-jing, YAO Jie, . Investigation of upper bound adaptive finite element method based on second-order cone programming and higher-order element [J]. Rock and Soil Mechanics, 2020, 41(2): 687-694.
[2] LI Jian, CHEN Shan-xiong, YU Fei, JIANG Ling-fa, DAI Zhang-jun. Discussion on mechanism of reinforcing high and steep slope with prestressed anchor cable [J]. Rock and Soil Mechanics, 2020, 41(2): 707-713.
[3] SHI Li, HU Dong-dong, CAI Yuan-qiang, PAN Xiao-dong, SUN Hong-lei, . Preliminary study of real-time pore water pressure response and reinforcement mechanism of air-booster vacuum preloading treated dredged slurry [J]. Rock and Soil Mechanics, 2020, 41(1): 185-193.
[4] ZHANG Hai-ting, YANG Lin-qing, GUO Fang, . Solution and analysis of dynamic response for rigid buried pipe in multi-layered soil based on SBFEM [J]. Rock and Soil Mechanics, 2019, 40(7): 2713-2722.
[5] 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.
[6] 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.
[7] 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.
[8] WANG Dong-yong, CHEN Xi, YU Yu-zhen, LÜ Yan-nan, . Ultimate bearing capacity analysis of shallow strip footing based on second- order cone programming optimized incremental loading finite element method [J]. Rock and Soil Mechanics, 2019, 40(12): 4890-4896.
[9] SHA Fei, LI Shu-cai, LIN Chun-jin, LIU Ren-tai, ZHANG Qing-song, YANG Lei, LI Zhao-feng. Research on penetration grouting diffusion experiment and reinforcement mechanism for sandy soil porous media [J]. Rock and Soil Mechanics, 2019, 40(11): 4259-4269.
[10] 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.
[11] 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.
[12] LI Ning, GUO Shuang-feng, YAO Xian-chun,. Further study of stability analysis methods of high rock slopes [J]. , 2018, 39(2): 397-406.
[13] LUO Xian-qi, ZHENG An-xing,. Application of extended finite element method in modelling fracture of rock mass [J]. , 2018, 39(2): 728-734.
[14] 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.
[15] 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.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] HUANG Qing-xiang, ZHANG Pei, DONG Ai-ju. Mathematical model of “arch beam” of thick sandy soil layer movement in shallow seam[J]. , 2009, 30(9): 2722 -2726 .
[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] LIU Zheng-hong，LIAO Yan-hong，ZHANG Yu-shou. Preliminary study of physico-mechanical properties of Luanda sand[J]. , 2010, 31(S1): 121 -126 .
[4] LEI Jin-bo，CHEN Cong-xin. Research on load transfer mechanism of composite foundation of rigid pile with cap based on hyperbolic model[J]. , 2010, 31(11): 3385 -3391 .
[5] ZHANG Cheng-ping，ZHANG Ding-li，LUO Jian-jun，WANG Meng-shu，WU Jie-pu. Remote monitoring system applied to the construction of metro station undercrossing existing metro tunnel[J]. , 2009, 30(6): 1861 -1866 .
[6] WANG Jun, CAO Ping, LI Jiang-teng, LIU Ye-ke. Analysis of stability of tunnel-slope with rheological medium under rainfall infiltration[J]. , 2009, 30(7): 2158 -2162 .
[7] ZHANG Yuan, WAN Zhi-jun, KANG Jian-rong, ZHAO Yang-sheng. Analysis of stage characteristics of sandstone permeability under conditions of temperature and triaxial stress[J]. , 2011, 32(3): 677 -683 .
[8] TANG Shi-bin, TANG Chun-an, LI Lian-chong, ZHANG Yong-bin. Investigation on time-dependent deformation of tunnel induced by humidity diffusion[J]. , 2011, 32(S1): 697 -0703 .
[9] 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 .
[10] LIU Xiao-li , LI Bai . Analysis of supporting mechanism of micro-steel-pipe piles in rock foundation pit[J]. , 2012, 33(S1): 217 -222 .
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