[1]张昊,邓永锋,谭慧明.墙桩间距对遮帘式板桩码头结构遮帘效应的影响分析[J].东南大学学报(自然科学版),2015,45(5):947-951.[doi:10.3969/j.issn.1001-0505.2015.05.022]
 Zhang Hao,Deng Yongfeng,Tan Huiming.Influence analysis of wall pile spacing on barrier effect of sheet-pile barrier wharf structure[J].Journal of Southeast University (Natural Science Edition),2015,45(5):947-951.[doi:10.3969/j.issn.1001-0505.2015.05.022]
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墙桩间距对遮帘式板桩码头结构遮帘效应的影响分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
45
期数:
2015年第5期
页码:
947-951
栏目:
土木工程
出版日期:
2015-09-20

文章信息/Info

Title:
Influence analysis of wall pile spacing on barrier effect of sheet-pile barrier wharf structure
作者:
张昊1邓永锋2谭慧明3
1河海大学岩土工程科学研究所, 南京 210098; 2东南大学岩土工程研究所, 南京 210096; 3河海大学港口海岸与近海工程学院, 南京 210098
Author(s):
Zhang Hao1 Deng Yongfeng2 Tan Huiming3
1Geotechnical Research Institute, Hohai University, Nanjing 210098, China
2Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China
3 College of Harbor Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China
关键词:
遮帘式板桩码头结构 遮帘效应 墙桩间距 平均侧压力系数
Keywords:
sheet-pile barrier wharf structure barrier effect wall pile spacing average lateral earth pressure coefficient
分类号:
TU43
DOI:
10.3969/j.issn.1001-0505.2015.05.022
摘要:
为了研究墙桩间距对遮帘效应的影响,利用京唐港32#原型观测试验揭示了遮帘式板桩码头结构的遮帘效应.分别采用离心模型试验和有限元模拟,对比码头开挖前后以及不同墙桩间距下前墙平均侧土压力系数、土压力分布及水平位移的变化情况.结果表明,码头开挖前,无遮帘桩情况下,前墙上平均侧土压力系数最大,且随墙桩间距的增大而减小;码头开挖后,随着墙桩间距的增大,前墙水平位移、前墙陆侧上土压力以及前墙与遮帘桩的相对水平位移增大,前墙陆侧对应桩间侧与对应桩侧上的土压力差值则逐渐减小.在实际工程施工条件允许的情况下,墙桩间距越小,遮帘式板桩码头结构的遮帘效应越明显.
Abstract:
In order to study the influence of wall pile spacing on barrier effect, the Jingtang 32# prototype observation experiment was carried out to reveal the barrier effect of sheet-pile barrier wharf structure. The centrifuge experiments and the finite element models were used to contrast the changes of the average lateral earth pressure coefficient, the distribution of earth pressure and the horizontal displacement on the front wall before and after excavation with different wall pile spacings. The results show that before excavation and without barrier piles, the average lateral earth pressure coefficient on the front wall can achieve the maximum value, and it decreases with the increase of the wall pile spacing. After excavation, with the increase of the wall pile spacing, the horizontal displacement, the earth pressure on the front wall and the relative horizontal displacement between the front wall and the barrier piles increase, but the difference value of the earth pressure between corresponding pile lateral and piles decreases. With the permission of the actual engineering conditions, the barrier effect of the sheet-pile barrier wharf structure becomes more obvious with the decrease of the wall pile spacing.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2015-04-13.
作者简介: 张昊(1979—),男,博士生;邓永锋(联系人),男,博士,教授,博士生导师,noden@seu.edu.cn.
基金项目: 国家自然科学基金青年科学基金资助项目(51309087).
引用本文: 张昊,邓永锋,谭慧明.墙桩间距对遮帘式板桩码头结构遮帘效应的影响分析[J].东南大学学报:自然科学版,2015,45(5):947-951. [doi:10.3969/j.issn.1001-0505.2015.05.022]
更新日期/Last Update: 2015-09-20