桩承式加筋路堤土拱效应的缩尺模型试验研究

doi:10.13722/j.cnki.jrme.2014.1167

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Abstract A series of scaled model tests were conducted to study the influence of the net distance between adjacent pile caps and embankment fill properties on the soil arching effect of geosynthetic reinforced and pile supported embankment. The influences of fill cohesion and the distance of adjacent pile caps on soil arching effect and the variation with the surcharge on the top of embankment were analyzed. The results show that：(1) Cohesion makes the soil arching effect stronger，soil pressure on the pile caps becomes larger，while soil pressure between pile caps becomes smaller. Comparing to fill without cohesion，for embankment constructed by fill with cohesion，pile efficacy increases，the settlements of subsoil between pile caps and on the surface of the embankment become smaller under the same load. (2) The arching conditions would be independent of fill cohesion，the height of soil arching is 1.0–1.5 times of the net distance of adjacent pile caps. (3) The greater the distance between adjacent pile caps，the weaker the arching effects，and the smaller the pile efficacy. (4) No matter what fill is or how the distance of adjacent pile caps changes，soil pressure on the pile cap edge is bigger than that over the pile cap center.

Key words： pile foundations geosynthetic reinforced and pile supported(GRPS) embankment rigid piles geosynthetics soil arching effect cohesion the net distance of adjacent pile caps

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	XU Chao1
	2
	SONG Shitong1
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Cite this article:

XU Chao1,2,SONG Shitong1, et al. SCALED MODEL TESTS OF SOIL ARCHING EFFECT IN GEOSYNTHETIC REINFORCED AND PILE SUPPORTED EMBANKMENTS[J]. , 2015, 34(S2): 4343-4350.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.1167 OR https://rockmech.whrsm.ac.cn/EN/Y2015/V34/IS2/4343

[1] 曹卫平，陈仁朋，陈云敏. 桩承式加筋路堤土拱效应试验研究[J]. 岩土工程学报，2007，29(3)：436–441.(CAO Weiping，CHEN Renpeng，CHEN Yunmin. Experimental investigation on soil arching in piled reinforced embankments[J]. Chinese Journal of Geotechnical Engineering，2007，29(3)：436–441.(in Chinese))

[2] HEWLETT W J，RANDOLPH M F. Analysis of piled embankments[J]. Ground Engineering，1988，21(3)：12–18.

[3] LOW B K，TANG S K，CHOA V. Arching in piled embankments[J]. Journal of Geotechnical Engineering，1994，120(11)：1 917–1 938.

[4] VAN EEKELEN S J M，BEZUIJEN A，LODDER H J，et al. Model experiments on piled embankments：part I[J]. Geotextiles and Geomembranes，2012，32：69–81.

[5] VAN EEKELEN S J M，BEZUIJEN A，LODDER H J，et al. Model experiments on piled embankments：part II[J]. Geotextiles and Geomembranes，2012，32：82–94.

[6] The German Geotechnical Society(DGGT). EBGEO-recommendation for reinforcement with geosynthetics[S]. Berlin：the German Geotechnical Society，2010.(in German)

[7] 费康，王军军，陈毅. 桩承式路堤土拱效应简化分析方法[J].岩土力学，2012，33(8)：2 408–2 414.(FEI Kang，WANG Junjun，CHEN Yi. A simplified method for analyzing soil arching effect in pile-supported embankments[J]. Rock and Soil Mechanics，2012，33(8)：2 408–2 414.(in Chinese))

[8] 李惠玲，胡荣华，强小俊. 桩承地基路堤土拱效应的影响因素分析[J]. 铁道建筑，2012，(10)：86–90.(LI Huiling，HU Ronghua，QIANG Xiaojun. Influencing factors of soil arching in rigid pile supported embankments[J]. Railway Engineering，2012，(10)：86–90.(in Chinese))

[9] 芮瑞，黄成，夏元友，等. 砂填料桩承式路堤土拱效应模型试验[J]. 岩土工程学报，2013，35(11)：2 082–2 089.(RUI Rui，HUANG Cheng，XIA Yuanyou，et al. Model tests on soil arching effects of piled embankments with sand fills[J]. Chinese Journal of Geotechnical Engineering，2013，35(11)：2 082–2 089.(in Chinese))

[10] British Standard Institute. British standard 8006：strengthened/ reinforced soils and other fills[S]. London：British Standard Institute，2010.

[11] 中华人民共和国国家标准编写组. GB/T 50783—2012复合地基技术规范[S]. 北京：中国计划出版社，2012.(The National Standards Compilation Group of People¢s Republic of China. GB/T 50783—2012 Technical code for composite foundation[S]. Beijing：China Planning Press，2012.(in Chinese))