Micro-Numerical Simulation of Anchorage Performance for Geotechnical Anchored Structure by Particle Flow Code

摘要:

文章预览

Based on the theory of particle flow code, the micro-numerical analysis model is established to study the anchorage performance of geotechnical prestressed anchorage structures. According to the numerical model tests, the development regularity of stress and displacement of surrounding soil around bar body under the effect of uplift loading is analyzed, and the interaction characters between anchor bolt and surrounding soil are also deeply studied. Conclusions can be drawn as follows: with the function of tensile load, two area of stress concentration form within the interior bond section of prestressed anchorage structure, and the soil porosity also changes accordingly. The interface shear stress peak point shift inward gradually with the increase of time-stepping, furthmore, the peak stress also enlarges gradually. According to the deformation mode, the surrounding soil can be divided into three zones. The radial displacement of soil between anchors is weakened because of the effects of group anchors, but the axial displacement is strengthened, which nominally is similar to the “single anchor character”. The research findings have a certain reference value for the study of anchorage mechanism.

信息:

期刊:

编辑:

Chaohe Chen, Yong Huang and Guangfan Li

页数:

3157-3166

引用:

S. F. Zhang et al., "Micro-Numerical Simulation of Anchorage Performance for Geotechnical Anchored Structure by Particle Flow Code", Advanced Materials Research, Vols. 243-249, pp. 3157-3166, 2011

上线时间:

May 2011

输出:

价格:

$38.00

[1] Cheng Liangkui, Han Jun, Zhang Peiwen. Long-term performance and safety assessment of anchorage in geotechnical engineering. Chinese journal of Rock Mechanics and engineering, 2008, 27(5): 865-872. (in Chinese ).

[2] Moerman W, Taerwe L, De Waele W, et al. Measuring ground anchor forces of a quay wall with bragg sensors. Journal of structural engineering, 2005, 131(2): 322-328.

DOI: https://doi.org/10.1061/(asce)0733-9445(2005)131:2(322)

[3] Nak-kyung kim, Asce A M. Performance of tension and compression anchors in weathered soil. Journal of geotechnical and geoenvironmental engineering. 2003, 129(12): 1138-1150.

DOI: https://doi.org/10.1061/(asce)1090-0241(2003)129:12(1138)

[4] Zhu Huanchun, Rong Guan, Xiao Ming, et al. Testing study on working mechanism of full grouting bolt under tensile load. Chinese Journal of Rock Mechanics and Engineering, 2002, 21(3): 379-384(in Chinese).

[5] Xie Wenbing, Jing Shengguo, Ren Youkui, Wang Tao. The invalidation mechanism of bolt-mesh support in soft coal roadway. Procedia Earth and Planetary Science, 2009, 1: 384-389.

DOI: https://doi.org/10.1016/j.proeps.2009.09.061

[6] Hongyue Sun, Louis Ngai Yuen Wong, Yuequan Shang, Qing Lu, Wei Zhan. Systematic monitoring of the performance of anchor systems in fractured rock masses. International Journal of Rock Mechanics & Mining Sciences, 2010, 47: 1038-1045.

DOI: https://doi.org/10.1016/j.ijrmms.2010.05.012

[7] Li You, Bai Shiwei, Zhu Weishen, et al. Simulation test and numerical simulation of anchoring effect of priestesses cable. Rock and Soil Mechanics, 2004, 25(S2): 260-264(in Chinese).

[8] Ana Ivanovic, Richard D. Neilson. Modelling of debonding along the fixed anchor length. International Journal of Rock Mechanics & Mining Sciences, 2009, 46: 699-707.

DOI: https://doi.org/10.1016/j.ijrmms.2008.09.008

[9] Lu Qing, Sun Hongyue, Shang Yuequan, et al. Numerical simulation study on prestressed anchorage mechanism in a curshed rock slope. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(9): 1848-1856(in Chinese).

[10] Zhang Sifeng, Zhou Jian, Song Xiuguang, et al. 3D numerical simulation of the anchor effect of prestreseed cables and its engineering application. Journal of Geomechanics, 2006, 12(2): 166-173. (in Chinese).

[11] Ching S. Chang and Sao-Jeng Chao. Discrete element analysis for active and passive pressure distribution on retaining wall. Computers and Geotechnics, 1994, 16: 291-310.

DOI: https://doi.org/10.1016/0266-352x(94)90012-4

[12] Catherine O'Sullivan, Jonathan D. Bray, Michael F. Riemer. Influence of particle shape and surface friction variability on response of rod-shaped particulate media. Journal of Engineering Mechanics, 2002, 128(11): 1182-1192.

DOI: https://doi.org/10.1061/(asce)0733-9399(2002)128:11(1182)

[13] Mauricio Abramento, Andrew J. whittle. Experimental evaluation of pullout analyses for planar reinforcements. Journal of Geotechnical Engineering, 1995, 121(6): 486-492.

DOI: https://doi.org/10.1061/(asce)0733-9410(1995)121:6(486)

[14] Itasca Consulting Group, Inc. PFC2D(Particle Flow Code in 2 Dimension)theory and backgroud. Minneapolis, Minnesota, (1999).

[15] Zhou Jian, Yao Zhixiong, Zhang Gang. Mesomechanical simulation of seepage flow in sandy soil. Chinese Journal of Geotechnical Engineering, 2007, 29(7): 977-981(in Chinese).

[16] Jia Mincai, Wang Lei, Zhou Jian. Meso-mechanics simulation on vibrocompaction of sand with two-dimensional particle flow code. Shuili XueBao, 2009, 40(4): 421-429(in Chinese).

[17] Francesco Calvetti, Claudio di Prisco, Roberto Nova. Experimental and numerical analysis of soil-pile interaction. Journal of geotechnical and geoenvironmental engineering, 2004, 130(12): 1292-1299.

DOI: https://doi.org/10.1061/(asce)1090-0241(2004)130:12(1292)

[18] Yoshikazu Sawamoto, Haruji Tsubota, Yoshiyuki Kasai, et al. Analytical studies on local damage to reinforced concrete structures under impact loading by discrete element method. Nuclear Engineering and Design, 1998, 179: 157-177.

DOI: https://doi.org/10.1016/s0029-5493(97)00268-9

[19] Zhou Jian, Chi Yuwei, Chi Yong, et al. Simulation of biaxial test on sand by particle flow code. Chinese Journal of Geotechnical Engineering, 2000, 22(6): 701-704. (in Chinese).