覆水液化场地群桩–土动力相互作用p-y曲线特性研究

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

Download: PDF (1692 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Site liquefaction induced by significant seismic events constitutes a critical factor contributing to the structural damage observed in pile-supported bridge systems. Existing literature predominantly addresses typical sites that lack overlying water，thereby neglecting the implications of such water on pile-soil interaction dynamics. This investigation employs a centrifugal shaking table test，supplemented by numerical modeling，to elucidate the dynamic interaction characteristics between piles and soil within overlying water-liquefied contexts，utilizing p-y curves for analytical characterization. The results indicate that：(1) under substantial seismic loading，the soil stiffness surrounding piles in water-covered sites exhibits an increase，thereby demonstrating a degree of resilience to liquefaction；(2) the liquefaction processes in sites，regardless of the presence of overlying water，exhibit comparable characteristics，with the soil stiffness around piles initially diminishing before ultimately recovering；however，recovery in soil stiffness within water-covered liquefied sites occurs at a nominally slower rate subsequent to the stabilization of the excess pore pressure ratio；(3) an increase in overlying water depth corresponds to an elevation in the initial stiffness of the soil matrix while concurrently reducing the enclosed area of the hysteresis loop of the p-y curve，which adversely affects the dissipation of vibrational energy；(4) at lower amplitudes of input vibration，the presence of overlying water reduces the stiffness of the soil surrounding the pile，thereby amplifying the excess pore pressure ratio；conversely，at higher vibration amplitudes，overlying water increases the soil stiffness around the pile and diminishes the excess pore pressure ratio. The findings of this study provide crucial theoretical insights for the comprehensive evaluation of pile-soil dynamic interaction mechanisms in bridges situated within water-influenced liquefaction zones.

Key words： soil mechanics overlaying water liquefied sites group piles p-y curve centrifuge test numerical simulation

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LAN Tian1
	LI Yurun1
	YAN Zhixiao1
	WANG Yongzhi2

Cite this article:

LAN Tian1,LI Yurun1,YAN Zhixiao1, et al. Study on p-y curve characteristics of pile group soil dynamic interaction in overlaying water liquefied sites[J]. , 2025, 44(2): 505-518.

URL:

https://rockmech.whrsm.ac.cn/EN/Y2025/V44/I2/505

[1]	刘小利，夏涛，刘静，等. 2021年青海玛多Mw7.4地震分布式同震地表裂缝特征[J]. 地震地质，2022，44(2)：461-483.(LIU Xiaoli，XIA Tao，LIU Jing，et al. Distributed characteristics of the surface deformations associated with the 2021 Mw7.4 Madoi earthquake[J]. Seismology and Geology，2022，44(2)：461-483.(in Chinese))
[2]	汪刚，景立平，李嘉瑞，等. 桩-土-上部结构动力相互作用振动台试验研究[J]. 岩石力学与工程学报，2021，40(增2)：3 414-3 424.(WANG Gang，JING Liping，LI Jiarui，et al. Shaking table test study on seismic-soil-pile-superstructure-interaction[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(Supp.2)：3 414-3 424. (in Chinese))
[3]	李雨润，闫志晓，张健. 液化场地群桩基础地震反应离心机试验及损伤数值模型研究[J]. 岩石力学与工程学报，2023，42(1)：212-223.(LI Yurun，YAN Zhixiao，ZHANG Jian. Seismic response of pile group foundations in liquefied sites based on centrifuge test and numerical simulation[J]. Chinese Journal of Rock Mechanics and Engineering，2019，42(1)：212-223.(in Chinese))
[4]	袁炳祥，李志杰，陈伟杰，等. 基于PIV技术与分形理论的桩-土系统水平循环受荷模型试验研究[J]. 岩石力学与工程学报，2023，42(2)：466-482.(YUAN Bingxiang，LI Zhijie，CHEN Weijie，et al. Experimental study on lateral cyclic loading model of pile-soil system based on PIV technique and fractal theory[J]. Chinese Journal of Rock Mechanics and Engineering，2019，42(2)：466-482.(in Chinese))
[5]	BANERJEE S，LEE F. Centrifuge shaking table tests on a single pile embedded in clay subjected to earthquake excitation[J]. International Journal of Geotechnical Engineering，2013，7(2)：117-123.
[6]	ZHANG J，LI Y R，YAN Z X，et al. Experimental study of vertical and batter pile groups in saturated sand using a centrifuge shaking table[J]. Earthquake Engineering and Engineering Vibration，2022，21(1)： 23-36.
[7]	EBEIDO A，ELGAMAL A，ZAYED M. Large scale liquefaction induced lateral spreading shake table testing at the University of California San Diego[C]// Geo-Congress 2019：Earthquake Engineering and Soil Dynamics. Reston V A：American Society of Civil Engineers，2019：22-30.
[8]	LIU X，WANG R，ZHANG J M. Centrifuge shaking table tests on 4×4 pile groups in liquefiable ground[J]. Acta Geotechnica，2018，13(6)：5-18.
[9]	苏雷，赵卓，毕建巍，等. 基于FLAC3D液化场地桩基动力反应振动台试验数值分析方法[J]. 防灾减灾工程学报，2022，42(3)：454-463.(SU Lei，ZHAO Zhuo，BI Jianwei，et al. Numerical simulation of shake table test on dynamic response of pile foundation in liquefiable ground using FLAC3D[J]. Journal of Disaster Prevention and Mitigation Engineering，2022，42(3)：454-463.(in Chinese))
[10]	KWON S Y，YOO M. Study on the dynamic soil-pile-structure interactive behavior in liquefiable sand by 3D numerical simulation[J]. Applied Sciences，2021，10(8)：2 723.
[11]	江辉，王宝喜，王志刚，等. 不同类型地震动下深水高桩承台群桩基础动力响应对比研究[J]. 建筑结构，2018，48(增2)：818-826. (JIANG Hui，WANG Baoxi，WANG Zhigang，et al. Comparative study on dynamic response of deep-water elevated pile-cap foundation excited by different types of earthquake ground motions[J]. Architectural Structure，2018，48(Supp.2)：818-826.(in Chinese))
[12]	孔德森，白翼飞，陈永坡，等. 不同承台形式斜直交替群桩-土-结构地震相互作用特性分析[J]. 防灾减灾工程学报，2020，40(4)：509-519.(KONG Sen，BAI Yifei，CHEN Yongpo，et al. Analysis on seismic interaction characteristics of pile-soil-structure of obliquely pile groups with different pile caps[J]. Journal of Disaster Prevention and Mitigation Engineering，2020，40(4)：509-519.(in Chinese))
[13]	李雨润，刘毅，梁旭华. 液化场地-群桩-上部结构动力特性研究综述[J]. 河北工业大学学报，2024，53(1)：74-80.(LI Yurun，LIU Yi，LIANG Xuhua. Review on dynamic characteristics of liquefied site-pile group super structure[J]. Journal of Hebei University of Technology，2024，53(1)：74-80.(in Chinese))
[14]	李雨润，张雨雷，陈张升，等. 液化土中对称双斜桩动力反应特征及p-y曲线规律试验研究[J]. 岩石力学与工程学报，2018，37(1)：239-250.(LI Yurun，ZHANG Yulei，CHEN Zhangsheng，et al. Dynamic response and p-y curve of symmetric inclined piles in liquefied soil[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(1)：239-250.(in Chinese))
[15]	RAJESWARI J S，SARKAR R. Performance of piles with different batter angles in laterally spreading soil：a probabilistic investigation[J]. Bull Earthquake Engineering，2020，18：6 203-6 244.
[16]	VAKILI A，ZOMORODIAN S M A，TOTONCHI A，et al. Laboratory and three-dimensional numerical modeling of laterally loaded pile groups in sandy soils[J]. Iranian Journal of Science and Technology，2021，45：2 623-2 636.
[17]	崔杰，张征，唐亮，等. 液化微倾场地群桩-土动力相互作用p-y曲线特性[J]. 地震工程与工程振动，2021，41(5)：154-164. (CUI Jie，ZHANG Zheng，TANG Liang，et al. p-y curve characteristics of pile groups soil dynamic interaction in mildly inclined liquefiable ground[J]. Earthquake Engineering and Engineering Vibration，2021，41(5)：154-164.(in Chinese))
[18]	王永志，王体强，王海，等. 我国土工离心机进展与研发关键技术[J]. 地震研究，2020，43(3)：592-600.(WANG Yongzhi，WANG Tiqiang，WANG Hai，et al. Geotechnical centrifuge progress and key technologies in China[J]. Journal of Seismological Research，2020，43(3)：592-600.(in Chinese))
[19]	ELSAWY M K，EL NAGGAR，CERATO A B，et al. Data reduction and dynamic p-y curves of helical piles from large-scale shake table tests[J]. Journal of Geotechnical and Geoenvironmental Engineering，2019，145(10)：117-122.
[20]	JEANJEAN，PHILIPPE. Re-assessment of p-y curves for soft clays from centrifuge testing and finite element modeling[C]// Offshore Technology Conference. Houston，Texas：[s. n.]，2009：OTC- 20158-MS.
[21]	CHOO Y W，KIM D. Experimental development of the relationship for large-diameter offshore monopiles in sands：Centrifuge tests[J]. Journal of Geotechnical and Geoenvironmental Engineering，2015，142(1)：4015058.
[22]	曹卫平，夏冰，赵敏，等. 砂土中水平受荷斜桩的p-y曲线及其应用[J]. 岩石力学与工程学报，2018，37(3)：743-753.(CAO Weiping，XIA Bing，ZHAO Min，et al. p-y curves of laterally loaded batter piles in sand and its application[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(3)：743-753.(in Chinese))
[23]	唐亮，刘书幸，凌贤长，等. 土体液化过程中桩-土动力相互作用p-y曲线模型[J]. 自然灾害学报，2022，31(2)：156-164.(TANG Liang，LIU Shuxing，LING Changxian，et al. Research on p-y curves of soil-pile dynamic interaction in liquefiable ground[J]. journal of natural disasters，2022，31(2)：156-164.(in Chinese))
[24]	闫志晓，李雨润，王东升，等. 覆水砂土场地中桥梁群桩基础地震响应离心试验研究[J]. 岩土力学，2023，44(3)：861-872.(YAN Zhixiao，LI Yurun，WANG Dongsheng，et al. Centrifugal experimental study on seismic response of bridge pile group foundation in overlaying water sandy field[J]. Rock and Soil Mechanics，2023，44(3)：861-872.(in Chinese))
[25]	唐亮. 液化场地桩-土动力相互作用p-y曲线模型研究[博士学位论文][D]. 哈尔滨：哈尔滨工业大学，2010.(TANG Liang. p-y model of dynamic pile-soil interaction in liquefying ground[Ph. D. Thesis][D]. Harbin：Harbin Institute of Technology，2010.(in Chinese))
[26]	王睿，张建民，王刚. 砂土液化大变形本构模型的三维化及其数值实现[J]. 地震工程学报，2013，35(1)：91-97.(WANG Rui，ZHANG Jianmin，WANG Gang. Multiaxial formulation and numerical implementation of a constitutive model for the evaluation of large liquefaction-induced deformation[J]. China Earthquake Engineering Journal，2013，35(1)：91-97.(in Chinese))
[27]	孔德森，陈永坡，李纯杰，等.液化场地斜直交替群桩-土-桥梁结构动力响应特性分析[J]. 山东科技大学学报：自然科学版，2014，3(5)：77-82.(KONG Desen，CHEN Yongpo，LI Chunjie，et al. Dynamic characteristics of inclined straight alternating pile group- soil-bridge structure in liquefied ground[J]. Journal of Shandong University of Science and Technology，2014，33(5)：77-82.(in Chinese))
[28]	许成顺，戴金，豆鹏飞，等. 液化场地-群桩-上部结构动力相互作用简化分析方法[J]. 地震工程与工程振动，2020，40(6)： 25-35.(XU Chengshun，DAI Jin，DOU Pengfei，et al. Simplified analysis method for dynamic interaction of liquefiedsite-group pile-superstructure[J]. Earthquake Engineering and Engineering Dynamics，2020，40(6)：25-35.(in Chinese))
[29]	JIANG H，WANG B X，BAI X Y，et al. Simplified expression of hydrodynamic pressure on deep water cylindrical bridge piers during earthquakes[J]. Journal of Bridge Engineering，2017，22(6)： 04017014.
[30]	李富荣，陈国兴，王志华. 考虑动水压力影响的单柱式桥墩地震反应分析[J]. 地震工程与工程振动，2008，28(2)：114-121.(LI Furong，CHEN Guoxing，WANG Zhihua. Seismic responses of single-column pier considering the effects of hydrodynamic pressure[J]. Earthquake Engineering and Engineering Vibration，2008，28(2)：114-121.(in Chinese))
[31]	WANG R，ZHANG J M，WANG G. A unified plasticity model for large post-liquefaction shear deformation of sand[J]. Computers and Geotechnics，2014，59：54-66.
[32]	邹佑学，王睿，张建民. 砂土液化大变形模型在FLAC3D中的开发与应用[J]. 岩土力学，2018，39(4)：1 525-1 534.(ZOU Youxue，WANG Rui，ZHANG Jianmin. Implementation of a plasticity model for large post-liquefaction deformation of sand in FLAC3D[J]. Rock and Soil Mechanics，2018，39(4)：1 525-1 534.(in Chinese))