[1]朱文波,戴国亮,龚维明,等.基于Meyerhof机构的吸力式沉箱基础抗拔承载力极限分析上限解[J].东南大学学报(自然科学版),2018,48(5):828-833.[doi:10.3969/j.issn.1001-0505.2018.05.008]
 Zhu Wenbo,Dai Guoliang,Gong Weiming,et al.Upper bound solution of limit analysis of uplift bearing capacity of suction caisson foundation based on Meyerhof mechanism[J].Journal of Southeast University (Natural Science Edition),2018,48(5):828-833.[doi:10.3969/j.issn.1001-0505.2018.05.008]
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基于Meyerhof机构的吸力式沉箱基础抗拔承载力极限分析上限解()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
48
期数:
2018年第5期
页码:
828-833
栏目:
土木工程
出版日期:
2018-09-20

文章信息/Info

Title:
Upper bound solution of limit analysis of uplift bearing capacity of suction caisson foundation based on Meyerhof mechanism
作者:
朱文波戴国亮龚维明赵学亮
东南大学土木工程学院, 南京 210096; 东南大学混凝土及预应力混凝土结构教育重点实验室, 南京 210096
Author(s):
Zhu Wenbo Dai Guoliang Gong Weiming Zhao Xueliang
School of Civil Engineering, Southeast University, Nanjing 210096, China
Key Laboratory of Concrete and Prestressed Concrete Structure of Ministry of Education, Southeast University, Nanjing 210096, China
关键词:
吸力式沉箱基础 Meyerhof破坏模式 极限承载力 上限定理
Keywords:
suction caisson foundation Meyerhof failure mode ultimate bearing capacity upper bound theorem
分类号:
TU473
DOI:
10.3969/j.issn.1001-0505.2018.05.008
摘要:
为了研究吸力式沉箱基础上抗拔荷载作用下的极限承载力上限解,构建出反向Meyerhof破坏模式.根据极限分析上限定理,引入反向地基承载力,基于Meyerhof破坏模式,将原基础下的主动区变为被动区,对数螺旋线方向相反且延伸至沉箱侧壁,建立了相应的机动许可速度场,推导出理论上更为合理的吸力式沉箱基础极限抗拔承载力上限解.分析了上限解与黏聚力、内摩擦角、摩擦系数以及基础下地基反向承载力之间的关系.采用Matlab软件编程计算出上限解,并与文献中的试验数据进行对比分析.结果表明,上限解与试验值的误差最大值为28%,最小值为9%,从而证明了破坏模式的合理性及所提方法的适用性.
Abstract:
To study the upper bound solution of the ultimate bearing capacity of the suction caisson foundation under the vertical uplift load, a reverse Meyerhof failure mode is constructed. According to the upper bound theorem of limit analysis, the reverse bearing capacity is introduced. Based on the Meyerhof failure mode, the active area under the foundation is turned into the passive area and the spiral is extended inversely to the side of the caisson. The upper bound solution of the bearing capacity of the suction caisson foundation is derived by establishing the corresponding kinematical admissible velocity field. The relationship between the upper bound solution and the cohesion, the internal friction angle, the friction coefficient and the reverse bearing capacity of foundation are analyzed. The upper bound solution is calculated by using Matlab software and compared with the experimental data in the literature. The results show that the errors between the upper bound solution and the experimental data are from 9% to 28%, proving that the reverse Meyerhof failure mode is reasonable and the method is applicable.

参考文献/References:

[1] Chakraborty D, Kumar J. Dependency of Nγ on footing diameter for circular footings[J]. Soils and Foundations,2013,53(1):173-180. DOI: 10.1016/j.sandf.2012.12.013.
[2] Clausen J. Bearing capacity of circular footings on a Hoek-Brown material[J].International Journal of Rock Mechanics and Mining Sciences,2013,57(1):34-41.DOI:10.1016/j.ijrmms.2012.08.004.
[3] Lavasan A A, Ghazavi M. Behavior of closely spaced square and circular footings on reinforced sand[J].Soils and Foundations,2012,52(1):160-167. DOI:10.1016/j.sandf.2012.01.006.
[4] Ornek M, Laman M, Demir A, et al. Prediction of bearing capacity of circular footings on soft clay stabilized with granular soil[J].Soils and Foundations,2012,52(1): 69-80. DOI:10.1016/j.sandf.2012.01.002.
[5] 胡卫东, 曹文贵. 基于Meyerhof理论的临坡地基极限承载力简化分析方法[J]. 湖南大学学报(自然科学版), 2015, 42(1): 81-89. DOI:10.16339/j.cnki.hdxbzkb.2015.01.012.
Hu Weidong, Cao Wengui. A simplified analysis method for the ultimate bearing capacity of ground foundation near slope based on the theory of Meyerhof[J]. Journal of Hunan University(Natural Sciences), 2015, 42(1): 81-89. DOI:10.16339/j.cnki.hdxbzkb.2015.01.012. (in Chinese)
[6] 张其一,栾茂田,赵少飞,等.复合加载模式下条形基础承载力下限分析[J].中国矿业大学学报,2008,37(3):364-368. DOI: 10.3321/j.issn:1000-1964.2008.03.017.
Zhang Qiyi, Luan Maotian, Zhao Shaofei, et al. Lower bound limit analysis of bearing capacity of strip footing due to combined loading [J]. Journal of China University of Mining and Technology, 2008,37(3): 364-368. DOI:10.3321/j.issn:1000-1964.2008.03.017. (in Chinese)
[7] 张其一,栾茂田.复合加载情况下双层地基极限承载力研究[J].岩土力学,2009,30(4):1131-1136. DOI: 10.3969/j.issn.1000-7598.2009.04.047.
Zhang Qiyi, Luan Maotian. Study of ultimate bearing capacity of two-layered subsoil under combined loading [J]. Rock and Soil Mechanics, 2009, 30(4):1131-1136. DOI:10.3969/j.issn.1000-7598.2009.04.047. (in Chinese)
[8] 李亮,杨小礼.圆形浅基础地基承载力极限分析的上限解析解[J].铁道学报,2001,23(1):94-97.DOI: 10.3321/j.issn:1001-8360.2001.01.020.
Li Liang, Yang Xiaoli. Analytical solution of bearing capacity of circular shallow foundations using upper bound theorem of limit analysis[J]. Journal of the China Railway Society, 2001, 23(1):94-97. DOI:10.3321/j.issn:1001-8360.2001.01.020. (in Chinese)
[9] 张国祥,付江山.基于极限分析的圆形浅基础地基承载力上限解[J].岩土力学,2010,31(12): 3849-3854.DOI: 10.3969/j.issn.1000-7598.2010.12.025.
Zhang Guoxiang, Fu Jiangshan. Upper bound solution for bearing capacity of circular shallow foundation based on limit analysis[J]. Rock and Soil Mechanics, 2010, 31(12):3849-3854. DOI:10.3969/j.issn.1000-7598.2010.12.025. (in Chinese)
[10] 刘拴奇,卢坤林,朱大勇,等.圆形基础地基极限承载力计算[J].工程地质学报,2015,23(5):1005-1012. DOI: 10.13544/j.cnki.jeg.2015.05.027.
Liu Shuanqi, Lu Kunlin, Zhu Dayong, et al. Calculation of ultimate bearing capacity of circular footing [J]. Journal of Engineering Geology, 2015, 23(5):1005-1012. DOI:10.13544/j.cnki.jeg.2015.05.027. (in Chinese)
[11] 陈飞,练继建,王海军.浅埋圆形基础竖向地基承载力极限分析上限解[J].湖南大学学报(自然科学版),2014,41(6): 92-98.
  Chen Fei, Lian Jijian, Wang Haijun. Upper-bound limit analysis of the vertical bearing capacity of circular shallow foundations[J].Journal of Hunan University(Nature Sciences), 2014, 41(6):92-98.(in Chinese)
[12] 陈中流.基于非线性破坏准则的圆形基础地基承载力上限分析[D].长沙:中南大学土木工程学院,2008.
[13] 王志云.软土地基上吸力式沉箱基础的抗拔承载特性研究[D].大连:大连理工大学土木工程学院,2008.
[14] 施晓春, 龚晓南, 俞建霖, 等. 桶形基础抗拔力试验研究[J]. 建筑结构, 2003, 33(8): 49-51,56. DOI:10.19701/j.jzjg.2003.08.017.
Shi Xiaochun, Gong Xiaonan, Yu Jianlin, et al. Experimental study on pull-out bearing capacity of bucket foundation[J]. Building Structure, 2003, 33(8): 49-51,56. DOI:10.19701/j.jzjg.2003.08.017. (in Chinese)
[15] 矫滨田,鲁晓兵,赵京,等.吸力式桶形基础抗拔承载力特性试验研究[J].中国海洋平台,2006,21(3):27-30. DOI: 10.3969/j.issn.1001-4500.2006.03.005.
Jiao Bintian, Lu Xiaobing, Zhao Jing, et al. On the pullout bearing capacity of bucket foundation [J]. China Offshore Platform, 2006,21(3):27-30. DOI:10.3969/j.issn.1001-4500.2006.03.005. (in Chinese)
[16] 陈惠发.极限分析与土体塑性[M]. 詹世斌,译. 北京:人民交通出版社,1975:40-50.

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备注/Memo

备注/Memo:
收稿日期: 2017-12-31.
作者简介: 朱文波(1990—),男,博士生;戴国亮(联系人),男,博士,教授,博士生导师,daigl@seu.edu.cn.
基金项目: 国家重点研发计划资助项目(2017YFC0703408)、国家自然科学基金资助项目(51478109,51678145)、浙江省交通运输厅科研计划资助项目(2014H10).
引用本文: 朱文波,戴国亮,龚维明,等.基于Meyerhof机构的吸力式沉箱基础抗拔承载力极限分析上限解[J].东南大学学报(自然科学版),2018,48(5):828-833. DOI:10.3969/j.issn.1001-0505.2018.05.008.
更新日期/Last Update: 2018-09-20