基于混合试验的桩承式加筋路堤参数影响分析

doi:10.13722/j.cnki.jrme.2021.0849

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (16897 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract There is a complex coupling effect among soil arching effect of the embankments，the tensile membrane effect of the geosynthetic reinforcement and the load bearing effect of the soft ground in geosynthetic-reinforced pile-supported(GRPS) embankments. Due to the evolution of soil arching with embankment loading and soil settlement between piles，the current calculation theories and methods are challenging to evaluate the whole process of load regulation and settlement stability of GRPS embankments. By introducing the technical idea of the hybrid test，a set of array multi trapdoor test devices and pile-soil foundation hybrid test methods were developed. The timely data exchange between the physical model of reinforced cushion embankment and the numerical model of pile-soil foundation was realized. Nine groups of hybrid tests with different embankment heights and tensile stiffness of reinforcement were carried out. The test results show that the established hybrid test method could well model the full component participation and full effect coupling working performance of GRPS embankments，greatly save the test cost and time，which provides an innovative evaluation method for the long-term bearing performance and settlement prediction of GRPS embankments. The concentric arch model can accurately evaluate the maximum soil arching effect of GRPS embankments. When the embankment height is low，the geosynthetic reinforcement with high tensile stiffness can improve the loading efficacy of piles. The geosynthetic reinforcement with high tensile stiffness can significantly reduce the settlement and the differential settlement between piles and soil under different embankment heights. With the increase of embankment height，the pile and soil efficacies with different reinforcement stiffness tend to be consistent，which reflects that the subgrade reaction coefficient method cannot reliably reflect the actual load-bearing mechanism of soil between piles.

Key words： pile foundations geogrid-reinforced and pile-supported embankment hybrid test soil arching effect settlement long-term performance

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	RUI Rui1
	HE Shikai1
	LIU Hao2
	PEI Yuhao1
	CHEN Cheng1
	ZHANG Lei1

Cite this article:

RUI Rui1,HE Shikai1,LIU Hao2, et al. Parametric analysis of geosynthetic-reinforced pile-supported embankments using hybrid tests[J]. , 2022, 41(7): 1476-1487.

URL:

http://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2021.0849 OR http://rockmech.whrsm.ac.cn/EN/Y2022/V41/I7/1476

[2]	SMITH M，FILZ G. Axisymmetric numerical modeling of a unit cell in geosynthetic-reinforced，column-supported embankments[J]. Geosynthetics International，2007，14(1)：13–22.
[7]	CHEN R P，XU Z Z，CHEN Y M，et al. Field tests on pile-supported embankment over soft ground[J]. Journal of Geotechnical and Geoenvironmental Engineering，2010，136(6)：777–785.
[10]	LIU S Y，DU Y J，YI Y L，et al. Field investigations on performance of T-shaped deep mixed soil cement column-supported embankments over soft ground[J]. Journal of Geotechnical and Geoenvironmental Engineering，2012，138(6)：718–727.
[4]	陈小庭，夏元友，芮瑞，等. 管桩加固软土路基桩土应力现场试验[J]. 中国公路学报，2006，19(5)：22–26.(CHEN Xiaoting，XIA Yuanyou，RUI Rui，et al. Field experiment of pile- soil stress of soft subgrade reinforced by pre-stressed concrete piles[J]. China Journal of Highway and Transport，2006，19(5)：22–26.(in Chinese))
[6]	LIU H L，CHU J，DENG A. Use of large-diameter，cast-in situ concrete pipe piles for embankment over soft clay[J]. Canadian Geotechnical Journal，2009，45(8)：915–927.
[20]	VAN EEKELEN S J M，BEZUIJEN A，LODDER H J，et al. Model experiments on piled embankments. Part II[J]. Geotextiles and Geomembrance，2012，32：82–94.
[9]	郑俊杰，张军，马强，等. 路桥过渡段桩承式加筋路堤现场试验研究[J]. 岩土工程学报，2012，34(2)：355–361.(ZHENG Junjie，ZHANG Jun，MA Qiang，et al. Experimental investigation of geogrid reinforced and pile-supported embankment at bridge approach[J]. Chinese Journal of Geotechnical Engineering，2012，34(2)；355–362.(in Chinese))
[19]	VAN EEKELEN S J M，BEZUIJEN A，LODDER H J，et al. Model experiments on piled embankments. Part I[J]. Geotextiles and Geomembrance，2012，32：69–81.
[21]	RUI R，VAN TOL A F，XIA Y Y，et al. Investigation of soil-arching development in dense sand by 2D model tests[J]. Geotechnical Testing Journal，2016，39(3)，415–430.
[1]	HAN J，GABR M A. Numerical analysis of geosynthetic-reinforced and pile-supported earth platforms over soft soil[J]. Journal of Geotechnical and Geoenvironmental Engineering，2002，128(1)：44–53.
[5]	费康，刘汉龙. 桩承式加筋路堤设计理论研究进展[J]. 水利水电科技进展，2008，28(4)：89–94.(FEI Kang，LIU Hanlong. Field test study and numerical analysis of a geogrid- reinforced and pile-supported embankment[J]. Advances in Science and Technology of Water Resources，2008，28(4)：89–94.(in Chinese))
[12]	郑俊杰，曹文昭，董同新，等. 中低压缩性土地区桩承式加筋路堤现场试验研究[J]. 岩土工程学报，2015，37(9)：1 549–1 555. (ZHENG Junjie，DONG Wenzhao，DONG Tongxin，et al. Experimental investigation of geogrid-reinforced and pile-supported embankment on soils with medium-low compressibility[J]. Chinese Journal of Geotechnical Engineering，2015，37(9)：1 549–1 555.(in Chinese))
[14]	徐子超，何宗弈，王一博，等. 膨胀土区桩承式路基土拱效应退化的数值模拟研究[J]. 铁道建筑，2021，61(4)：79–83.(XU Zichao，HE Zongyi，WANG Yibo，et al. Numerical simulation of soil-arching effect degradation of pile-supported embankment in expansive soil area[J]. Railway Engineering，2021，61(4)：79–83.(in Chinese))
[15]	TERZAGHI K. Theoretical soil mechanics[M]. New York：Wiley，1943：66–76.
[17]	费康，陈毅，王军军. 加筋形式对桩承式路堤工作性状影响的试验研究[J]. 岩土工程学报，2012，34(12)：2 312–2 317.(FEI Kang，CHEN Yi，WANG Junjun. Experimental study on influence of reinforcing modes on behavior of piled embankment[J]. Chinese Journal of Geotechnical Engineering，2012，34(12)：2 312–2 317.(in Chinese))
[22]	RUSSELL D，NAUGHTON P. A new design procedure for piled embankments[C]// Proceedings of the 56TH Canadian Geotechnical Conference，4th Joint IAH-CNC/CGS Conference，and 2003 NAGS Conference. Richmond，Canada：[s. n.]，2003：858–865.
[24]	ZAESKE D. Zur Wirkungsweise von unbewehrten und bewehrten mineralischen Tragschichten über pfahlartigen Gründungselementen (The mechanism of unreinforced and reinforced granular load transfer platform over pile foundation elements)[Ph. D. Thesis][D]. Kassel：University of Kassel，2001.(in German)
[25]	VAN EEKELEN S J M，BEZUIJEN A，VAN TOL A F. An analytical model for arching in piled embankments[J]. Geotextiles and Geomembranes，2013，(39)：78–102.
[27]	OISETH E，SVANO G，WATN A，et al. A computer program for designing reinforced embankments[C]// Proceedings of the 7th International Conference of Geosynthetics. Nice，France：[s. n.]，2002：201–204.
[29]	HAN J，WANG F，AL-NADDAF M，et al. Progressive development of two-dimensional soil arching with displacement[J]. International Journal of Geomechanics，2017，17(12)：04017112.
[30]	KING D J，BOUAZZA A，GNIEL J R，et al. Load transfer platform behaviour in embankments supported on semi-rigid columns：implications of the ground reaction curve[J]. Canadian Geotechnical Journal，2017，(54)：1 158–1 175.
[32]	RUI R，VAN TOL A F，XIA Y Y，et al. Evolution of soil arching：2D analytical models[J]. International Journal of Geomechanics，2018，18(6)：04018056.
[34]	夏元友，芮瑞. 刚性桩加固软土路基竖向土拱效应的试验分析[J]. 岩土工程学报，2006，28(3)：327–331.(XIA Yuanyou，RUI Rui. Experimental analysis of vertical soil arching effect of embankment reinforced by rigid piles[J]. Chinese Journal of Geotechnical Engineering，2006，28(3)：327–331.(in Chinese))
[3]	贾宁，陈仁朋，陈云敏，等. 杭甬高速公路拓宽工程理论分析及监测[J]. 岩土工程学报，2004，26(6)：755–760.(JIA Ning，CHEN Renpeng，CHEN Yunmin，et al. Theoretical analysis and measurement for widening project of Hang-Yong Expressway[J]. Chinese Journal of Geotechnical Engineering，2004，26(6)：755–760.(in Chinese))
[13]	张述涛，陈丽娟. 海南博鳌机场跑道道槽区的软土地基处理研究[J]. 路基工程，2017，(3)：73–77.(ZHANG Shutao，CEHN Lijuan. Study on the soft soil foundation treatment of channel slot of Hainan Bo?ao airport runway[J]. Subgrade Engineering，2017，(3)：73–77.(in Chinese))
[23]	HEWLETT W J，RANDOLPH M F. Analysis of piled embankments[J]. Ground Engineering，1988，21(3)：12–18.
[33]	HAN J. Koerner lecture：Geosynthetic-reinforced column supported embankments：Improving practice with better theory[N]. Industrial Fabrics Association International，2021. https：//geosyntheticsmagazine. com/2021/08/01/koerner-lecture-geosynthetic-reinforced-column-supported- embankments-improving-practice-with-better-theory/.
[8]	马丽君，王旭. 油罐荷载作用下的饱和黄土地基沉降试验研究[J]. 西部交通科技，2010，(7)：28–31.(MA Lijun，WANG Xu. The yellow soil sedimentation experiment under oilcan loading effect[J]. Western China Communications Science and Technology，2010，(7)：28–31.(in Chinese))
[11]	姚裕春，李安洪，罗照新，等. 郑西客专湿陷性黄土地基处理技术研究[J]. 铁道工程学报，2013，(9)：15–19.(YAO Yuchun，LI Anhong，LUO Zhaoxin，et al. Study on techniques for collapsible loess foundation treatment of Zhengzhou-Xi?an passenger dedicated line[J]. Journal of Railway Engineering Society，2013，(9)：15–19.(in Chinese))
[18]	OH Y I，SHIN E C. Reinforcement and arching effect of geogrid-reinforced and pile-supported embankment on marine soft ground[J]. Marine Georesources and Geotechnology，2007，25(2)：97–118.
[28]	IREX. ASIRI-Recommendations for the design，construction and control of rigid inclusion ground improvements[M]. Paris，France：Presses des Ponts，2012：41–89.
[31]	IGLESIA G R，EINSTEIN H H，WHITMAN R V. Investigation of soil arching with centrifuge tests[J]. Journal of Geotechnical and Geoenvironmental Engineering，2013，140(2)：189–201.
[38]	KING D J，BOUAZZA A，GNIEL J R，et al. Serviceability design for geosynthetic reinforced column supported embankments[J]. Geotextiles and Geomembrances，2017，(45)：261–279.
[16]	赵明华，张玲，邹新军，等. 土工格室–碎石桩双向增强复合地基研究进展[J]. 中国公路学报，2009，22(1)：1–10.(ZHAO Minghua，ZHANG Ling，ZOU Xinjun，et al. Research progress in two-direction reinforced composite foundation formed by geocell reinforced mattress and gravel piles[J]. China Journal of Highway and Transport，2009，22(1)：1–10.(in Chinese))
[35]	杨格，王贞，吴斌，等. 建筑结构混合试验平台HyTest 开发研究[J]. 建筑结构学报，2015，36(11)：149–156.(YANG Ke，WANG Zhen，WU Bin，et al. Development of HyTest for structural hybrid simulation[J]. Journal of Building Structures，2015，36(11)：149–156.(in Chinese))
[37]	费康，刘汉龙. 桩承式加筋路堤的现场试验及数值分析[J]. 岩土力学，2009，30(4)：1 004–1 012.(FEI Kang，LIU Hanlong. Field test study and numerical analysis of a geogrid-reinforced and pile-supported embankment[J]. Rock and Soil Mechanics，2009，30(4)：1 004–1 012. (in Chinese))
[26]	ROGBECK Y，GUSTAVSSON S，SǒDERGREN I，et al. Reinforced piled embankments in Sweden—Design aspects[C]// Proceedings of the Sixth International Conference on Geosynthetics. Atlanta USA：[s. n.]，1998：755–762.
[36]	IDINYANG S，FRANZA A，HERON C M，et al. Real-time data coupling for hybrid testing in a geotechnical centrifuge[J]. International Journal of Physical Modelling in Geotechnics，2018，(4)：1700063.