[1]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(02):156-164.[doi:10.13577/j.jnd.2022.0217]
 TANG Liang,LIU Shuxing,LING Xianzhang,et al.Research on p-y curves of soil-pile dynamic interaction in liquefiable ground[J].,2022,31(02):156-164.[doi:10.13577/j.jnd.2022.0217]
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土体液化过程中桩-土动力相互作用p-y曲线模型
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《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
31
期数:
2022年02期
页码:
156-164
栏目:
出版日期:
2022-04-28

文章信息/Info

Title:
Research on p-y curves of soil-pile dynamic interaction in liquefiable ground
作者:
唐亮12 刘书幸12 凌贤长13 刘正滨4 陈平山5 傅晓蕾6
1. 哈尔滨工业大学 土木工程学院, 黑龙江 哈尔滨 150090;
2. 黑龙江省寒区轨道交通工程技术研究中心, 黑龙江 哈尔滨 150090;
3. 青岛理工大学 土木工程学院, 山东 青岛 266033;
4. 山东省港口集团有限公司, 山东 青岛 266000;
5. 中交第四航务工程局有限公司, 广东 广州 510290;
6. 山东港湾建设集团有限公司, 山东 日照 276826
Author(s):
TANG Liang12 LIU Shuxing12 LING Xianzhang13 LIU Zhengbin4 CHEN Pingshan5 FU Xiaolei6
1. School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China;
2. Heilongjiang Research Center for Rail Transit Engineering in Cold Regions, Harbin 150090, China;
3. School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China;
4. Shandong Port Group Co. LTD, Qingdao 266000, China;
5. CCCC Fourth Navigation Engineering Co. LTD, Guangzhou 510290, China;
6. Shandong Harbour Engineering Group Co. LTD, Rizhao 276826, China
关键词:
桩-土动力相互作用动力 p-y曲线公式砂土液化液化过程有限元方法
Keywords:
dynamic soil-pile interactiondynamic p-y curve formulasand liquefactionliquefactionfinite element method
分类号:
TU4;X43
DOI:
10.13577/j.jnd.2022.0217
摘要:
桩-土动力相互作用分析是解决液化场地桥梁桩基抗震设计问题的有效途径。鉴于此,本文依托OpenSees有限元数值模拟平台,分析了桩径、孔压比、砂土相对密度等因素下砂土动力p-y曲线的变化规律,建立了不同孔压比下砂土的动力p-y曲线簇,提出了动力p-y曲线骨干线的修正方法;最后,以孔压比为控制因素,发展了能够表征土体液化过程的动力p-y曲线模型。研究结果对液化场地桩-土动力相互作用分析具有重要借鉴意义。
Abstract:
The dynamic soil-pile interaction provides an effective way to investigate the seismic design of pile-supported bridge. In this paper,a 3D finite element modeling was established by OpenSees,and a series of parametric studies involving pore pressure ratio,pile diameter,and relative density were conducted to investigate dynamic p-y curves. The influences of p-y curve clusters were investigated and a revised backbone curve was proved. Based on the proposed criterion of pore pressure ratio,a simplified dynamic p-y curve was proposed for practical application. This work can provide some preliminary design suggestions for soil-pile dynamic interaction.

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备注/Memo

备注/Memo:
收稿日期:2021-1-14;改回日期:2022-2-9。
基金项目:国家重点研发计划战略性国际科技创新合作重点专项(2016YFE0205100);国家自然科学基金项目(51578195,51608533);黑龙江省应用技术研究与开发计划(GA19A501)
作者简介:唐亮(1981-),男,教授,博士,主要从事土动力学和岩土地震工程研究.E-mail:hit_tl@163.com
更新日期/Last Update: 1900-01-01