桩承式路堤土拱效应的应力计算方法比较

范礼彬; 章定文; 刘松玉

桩承式路堤土拱效应的应力计算方法比较 English Version

东南大学交通学院,江苏南京210096

基金项目: “十二五”国家科技支撑计划课题（2012BAJ01B02）

详细信息

作者简介:
范礼彬(1988- )，男，江西玉山人，硕士研究生，主要从事岩土工程研究。E-mail: fanlb@foxmail.com。

中图分类号: TU473.1
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出版历程
- 收稿日期: 2013-06-14
- 发布日期: 2013-11-24

Comparision of calculating methods for stress of soil arching effect of piled embankments

School of Transportation, Southeast University, Nanjing 210096, China

摘要

摘要: 在桩承式路堤土拱效应的分析中,桩土应力比是评价土拱效应的重要参数。土拱效应对分析桩承式路堤荷载传递和沉降变形有重要的影响。目前比较常用的几种土拱效应计算方法的假设条件和适用范围都存在一定的差异。Terzaghi和Low的计算方法仅适用于平面土拱中,Hewlett和Randolph和德国EBGEO 2004方法仅适用空间土拱,而英国规范（BS8006）的计算方法同时适用于平面土拱和空间土拱。讨论了常用土拱效应计算方法的基本假设差异,并结合几个工程实例分析了各种计算方法的适用性。
- 桩承式路堤 /
- 土拱效应 /
- 计算方法 /
- 桩土应力比
Abstract: The stress concentration ration is an important parameter in the analysis of soil arching effect of piled embankments. The soil arching effect has an important influence in the analysis of load transfer and the embankment settlement. The computational methods for soil arching effect have many differences in assumed conditions and scopes of application. The Terzaghi's and Low's methods are only applicable to 2D situation, the Hewlett & Randolph's and EBGEO 2004's methods are only applicable to 3D situation, and the BS8006's method is applicable to 2D and 3D situations. The differences between basic assumptions of the common soil arching computation effect are discussed, and the applications of different calculation methods are analyzed combined with engineering examples.
- piled embankment /
- soil arching effect /
- computational method /
- stress concentration ratio

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参考文献(15)

[1]	HAN Jie, GABR M A. Numerical analysis of geosynthetic reinforced and pile supported earth platforms over softsoil[J]. Journal of Geotechnical and Geoenvironmental Engineering, ASCE, 2002, 128(1): 44-53.
[2]	HAN Jie, AKINS K. Use of Geogrid-reinforced and pile supported earth structures[C]// Proceedings of International Deep Foundation Congress. Orlando: ASCE, 2002: 668-679.
[3]	TERZAGHI K. Stress distribution in dry and in saturated sand above a yielding trapdoor[C]// Proc 1st IC on Soil Mechanics and Foundation Engineering. Cambridge, Mass, 1936, 1: 307-311.
[4]	LOW B K, TANG S K, CHOA V. Arching in piled embankments[J]. Journal of Geotechnical Engineering, ASCE, 1994, 120(11): 1917-1938.
[5]	HANDY R L. The arch in soil arching[J]. Journal of Geotechnical Engineering, 1985, 111(3): 302-318.
[6]	TERZAGHI K. Theoretical Soil Mechanics [M]. New York: John Wiley and Son, 1943: 66-75.
[7]	NAUGHTON P J. The significance of critical height in the design of piled embankments[J]. Soil Improvement, ASCE, 2007: 172-181.
[8]	CARLSSON B. Armerad jord-berakningspriniper för - banakar pa palar. Linköpig[J]: 1987 Terrarema AB.
[9]	HEWLETT W J&RANDOLPH M F. Analysis of piled embankments[J]. Ground Engineering, 1988, 21(3): 12-18.
[10]	陈云敏, 贾宁, 陈仁朋. 桩承式路堤土拱效应分析[J].中国公路学报, 2004, 17(4): 1-6. (CHEN Yun-min, JIA Ning, CHEN Ren-peng. Soil arch analysis of pile pposed embankments[J]. China Journal of Highway and Transport, 2004, 17(4): 1-6. (in Chinese))
[11]	陈仁朋, 贾宁, 陈云敏. 桩承式加筋路堤受力机制及沉降分析[J]. 岩石力学与工程学报, 2005, 24(23): 4358-4367. (CHEN Ren-peng, Jia Ning, CHEN Yun-min. Mechanism and settlement analysis of pile supposed and geogrid reinforced embankments[J]. Chinese Journal of Rock Mecharfics and Engineering, 2005, 24(23): 58-367. (in Chinese) )
[12]	British Standard BS8006. Code of practice for strengthened reinforced soils and other fills[S]. London: British Standard Institution, 1995.
[13]	DGGT. EBGEO: Bewehrte Erdkörper auf punkt-oder linienförmigen Traggliedern[M]. 2004.
[14]	Priyanath Ariyarathne, Liyanapathirana D S, Leo C J. A comparison of different two dimensional idealizations for a geosynthetic reinforced pile-supported embankment[J]. International Journal of Geomechanics, ASCE, 2012(10): 1916-1927.
[15]	曹卫平, 陈仁朋, 陈云敏. 桩承式加筋路堤土工效应试验研究[J]. 岩土工程学报, 2007, 29(3): 436-441. (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) )