Soil arching effect of low subgrade with pile-net structure under train load

WEI Jing; WEI Ping; YANG Song-lin; ZHANG Dong

doi:10.19818/j.cnki.1671-1637.2015.06.005

Volume 15 Issue 6

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WEI Jing, WEI Ping, YANG Song-lin, ZHANG Dong. Soil arching effect of low subgrade with pile-net structure under train load[J]. Journal of Traffic and Transportation Engineering, 2015, 15(6): 35-44. doi: 10.19818/j.cnki.1671-1637.2015.06.005

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WEI Jing, WEI Ping, YANG Song-lin, ZHANG Dong. Soil arching effect of low subgrade with pile-net structure under train load[J]. Journal of Traffic and Transportation Engineering, 2015, 15(6): 35-44. doi: 10.19818/j.cnki.1671-1637.2015.06.005

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Soil arching effect of low subgrade with pile-net structure under train load

doi: 10.19818/j.cnki.1671-1637.2015.06.005

WEI Jing^{1, 2
,},
WEI Ping^{1, 2, 3},
YANG Song-lin^{1, 2},
ZHANG Dong^{1, 2}

1.
School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China
2.
Beijing Key Laboratory of Track Engineering, Beijing Jiaotong University, Beijing 100044, China
3.
School of Civil and Survey Engineering, Beijing Polytechnic College, Beijing 100042, China

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Author Bio:
WEI Jing（1973-），female，associate professor，PhD，+86-10-51683954，jingwei@bjtu.edu.cn
Received Date: 2015-09-13
Publish Date: 2015-12-25

Abstract

Abstract

The dynamic finite element model of low subgrade with pile-net structure was built by using ABAQUS software.The reliability of the model was verified by the comparison of calculated and measured results.The distribution of dynamic stress, the vibration characteristics of pile-soil stress ratio and the height of equal settlement plane under train load were analyzed.Analysis result indicates that the maximum differences of calculated and measured values for dynamic stress and dynamic displacement at different depths of subgrade are 0.56 kPa and 7 μm respectively, the transmission trends of average dynamic stress and dynamic displacement of calculated result are similar to the measured result along the subgrade depth, so the proposed dynamic finite element model is reliable.There exists soil aching effect in subgrade under dynamic load, and the height of soil arching effect is about 1.6 m that is approximately the same with the value under static load.The stress variation ratio under dynamic load in subgrade surfaceis larger than the value in subgrade base, and the stress variation rate in subgrade base is extremely diminutive.The distribution of dynamic stress in subgrade under dynamic load is effected by soil arching effect, and the dynamic stress is partly transferred from soil among piles to pile top, and the phenomenon is most obvious in the cushion of subgrade.After dynamic load, in the center of subgrade, the pile-soil stress ratio of pile top to soil between two piles decreases, and the ratio among four piles increases.The pile-soil stress ratio between two piles is always larger than the value among four piles.The height of equal settlement plane of vertical section with the distance of 1mto the center of subgrade is about 1.55 m.The height of equal settlement plane in vertical section with piles is larger than the value without piles.From subgrade center to subgrade shoulder, the height of equal settlement plane in the same vertical section decreases gradually.After dynamic loading, the height of equal settlement plane in the center of subgrade increases.
- railway subgrade,
- pile-net structure,
- train load,
- numerical analysis,
- soil arching effect,
- equal settlement plane

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References(27)

References

[1]	LOW B K, TANG S K, CHOA V. Arching in piled embankments[J]. Journal of Geotechnical Engineering, 1994, 120(11): 1917-1938. doi: 10.1061/(ASCE)0733-9410(1994)120:11(1917)
[2]	LIU Ji-fu. Analysis on pile-soil stress ratio for composite ground under embankment[J]. Chinese Journal of Rock Mechanics and Engineering, 2003, 22(4): 674-677. (in Chinese). doi: 10.3321/j.issn:1000-6915.2003.04.033
[3]	LEI Jin-bo, JIANG Hong-dao, ZHENG Yun-yang, et al. Calculation and analysis of composite pile-soil stress ratio of composite foundation with capped rigid pile[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(11): 1300-1305. (in Chinese). doi: 10.3321/j.issn:1000-4548.2005.11.014
[4]	YU Jin, ZHOU Yi-tao, BAO Sheng, et al. Pile-soil stress ratio of deformable pile-supported and geosynthetics-reinforced embankments[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(5): 705-713. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC201105010.htm
[5]	YANG Xue-qiang, JI Xiao-ming, ZHANG Xin-tao. Analysis of soil arching effect between anti-slide piles and different arch body modes[J]. China Journal of Highway and Transport, 2014, 27(1): 30-37. (in Chinese). doi: 10.3969/j.issn.1001-7372.2014.01.005
[6]	ZHAO Ming-hua, LIU Meng, LONG Jun, et al. Deformation analysis of geocell-reinforcement in bidirectional reinforced composite foundation[J]. China Journal of Highway and Transport, 2014, 27(5): 97-104, 124. (in Chinese). doi: 10.3969/j.issn.1001-7372.2014.05.002
[7]	XU Feng, CHEN Ren-peng, CHEN Yun-min, et al. Analysis of pile-supported embankments[J]. Journal of Zhejiang University: Engineering Science, 2005, 39(9): 1393-1399. (in Chinese). doi: 10.3785/j.issn.1008-973X.2005.09.025
[8]	ZHANG Hao, SHI Ming-lei, ZHANG Rui-kun. Analysis on load action effect of subgrade in pile supported lime-soil embankment[J]. Journal of Highway and Transportation Research and Development, 2011, 28(6): 25-31. (in Chinese). doi: 10.3969/j.issn.1002-0268.2011.06.005
[9]	HEWLETT W J, RANDOLPH M F. Analysis of piled embankments[J]. Ground Engineering, 1988, 21(3): 12-18.
[10]	SADREKARIMI J, ABBASNEJAD A. Arching effect in fine sand due to base yielding[J]. Canadian Geotechnical Journal, 2010, 47(3): 366-374. doi: 10.1139/T09-107
[11]	QIANG Xiao-jun, ZHAO You-ming, HU Rong-hua. Improved algorithm for the soil arching effect of pile-net supported embankment[J]. China Railway Science, 2009, 30(4): 7-12. (in Chinese). doi: 10.3321/j.issn:1001-4632.2009.04.002
[12]	ZHU Xiao-jun, ZHAO Xue-liang, GONG Wei-ming, et al. Study on failure mechanism of cushion in rigid pile composite foundation[J]. China Journal of Highway and Transport, 2014, 27(5): 105-111. (in Chinese). doi: 10.3969/j.issn.1001-7372.2014.05.003
[13]	CAO Wei-ping, CHEN Ren-peng, CHEN Yun-min. Experimental investigation on soil arching in piled reinforced embankments[J]. Chinese Journal of Geotechnical Engineering, 2007, 29(3): 436-441. (in Chinese). doi: 10.3321/j.issn:1000-4548.2007.03.021
[14]	CAO Wei-ping, CHEN Yun-min, CHEN Ren-peng. Analysis of soil arching in piled embankments considering coupled effect of embankment filling and soil consolidation[J]. Chinese Journal of Rock Mechanics and Engineering, 2008, 27(8): 1610-1617. (in Chinese). doi: 10.3321/j.issn:1000-6915.2008.08.010
[15]	YU Chuang, LIU Song-yu, DU Guang-yin, et al. Three dimensional simulations on soil arching of piled embankments[J]. Journal of Southeast University: Natural Science Edition, 2009, 39(1): 58-62. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-DNDX200901012.htm
[16]	FEI Kang, WANG Jun-jun, CHEN Yi. Experimental and numerical studies of soil arching in piled embankment[J]. Rock and Soil Mechanics, 2011, 32(7): 1975-1983. (in Chinese). doi: 10.3969/j.issn.1000-7598.2011.07.010
[17]	FEI Kang, CHEN Yi, WANG Jun-jun. Study of development of soil arching effect in piled embankment[J]. Rock and Soil Mechanics, 2013, 34(5): 1367-1374. (in Chinese).
[18]	FEI Kang, CHEN Yi, WANG Jun-jun, et al. Failure modes in fill of pile-supported embankments[J]. Journal of Chongqing Jiaotong University: Natural Science, 2011, 30(2): 258-262. (in Chinese).
[19]	LIU Jun-fei, ZHAO Guo-tang, MA Jian-lin. Analysis on conformation of soil arch on the pile head of composite pilenet foundations[J]. Journal of the China Railway Society, 2011, 33(6): 81-87. (in Chinese).
[20]	ZHAN Yong-xiang, JIANG Guan-lu. Pile-soil interaction properties of pile-plank embankment[J]. Journal of Traffic and Transportation Engineering, 2009, 9(4): 38-42. (in Chinese). http://transport.chd.edu.cn/article/id/200904008
[21]	HAN Gao-xiao, GONG Quan-mei, ZHOU Shun-hua. Experimental study of soil arching effect in geogrid reinforced pile supported embankment under train dynamic load[J]. Rock and Soil Mechanics, 2014, 35(6): 1600-1606. (in Chinese).
[22]	YE Yang-sheng, ZHANG Qian-li, CAI De-gou, et al. On static and dynamic load transfer peculiarity of low embankment for high speed railway pile-net composite foundation[J]. High Speed Railway Technology, 2010, 1(1): 10-15. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-GSTL201001007.htm
[23]	ZHANG Chong-lei, JIANG Guan-lu, YUAN Sheng-yang, et al. Dynamicresponse analysis of column-net structure subgrade and reinforced cushion under cyclic loading[J]. Rock and Soil Mechanics, 2014, 35(6): 1664-1670. (in Chinese).
[24]	XIAO Hong, JIANG Guan-lu, WEI Yong-xing. Dynamic test analysis on ballastless-track column-net structure subgrade of the Suining-Chongqing Railway Line[J]. Journal of the China Railway Society, 2010, 32(1): 79-84. (in Chinese).
[25]	HUANG Ying. Dynamic response analysis of subgrade in high speed railway anddesign of model test equipment[D]. Changsha: Central South University, 2009. (in Chinese).
[26]	LI Jia. Field test of subgrade-tunnel transition section of ballastless track on Suining-Chongqing Railway and subgrade structure FEM calculation[D]. Chengdu: Southwest Jiaotong University, 2008. (in Chinese).
[27]	JIA Hai-li, WANG Cheng-hua, LI Jiang-hong. Discussion onsome issues in theory of soil arch[J]. Journal of Southwest Jiaotong University, 2003, 38(4): 398-402. (in Chinese).

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Soil arching effect of low subgrade with pile-net structure under train load

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