季节冻土区光伏支架螺旋桩基的冻胀数值分析研究

doi:10.7522/j.issn.1000-0240.2016.0136

冰川冻土 ›› 2016, Vol. 38 ›› Issue (4): 1167-1174.doi: 10.7522/j.issn.1000-0240.2016.0136

季节冻土区光伏支架螺旋桩基的冻胀数值分析研究

王腾飞¹, 刘建坤¹, 刘晓强¹, 尚亚龙²

1. 北京交通大学土木建筑工程学院, 北京 100044;
2. 中国电力工程顾问集团华北电力设计院工程公司, 北京 100011

收稿日期:2016-02-05 修回日期:2016-07-28 出版日期:2016-08-25 发布日期:2016-09-19
通讯作者: 尚亚龙,E-mail:knight_90@163.com. E-mail:knight_90@163.com
作者简介:王腾飞(1990-),男,山东莒南人,2012年毕业于中山大学,现为在读博士研究生,从事冻土路基的研究.E-mail:14115334@bjtu.edu.cn
基金资助:
国家自然科学基金项目（51378057；41371081）资助

Numerical simulation on anti-jacking-up performance of helical piles of photovoltaic stents in seasonal frozen region

WANG Tengfei¹, LIU Jiankun¹, LIU Xiaoqiang¹, SHANG Yalong²

1. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China;
2. North China Power Engineering Co., Ltd of China Power Engineering Consulting Group, Beijing 100011, China

Received:2016-02-05 Revised:2016-07-28 Online:2016-08-25 Published:2016-09-19

摘要/Abstract

摘要： 利用有限元软件COMSOL自定义模块功能，将建立的水热力三场顺序耦合模型导入，模拟二维轴对称条件下多种螺旋桩在土体冻结过程中发生的冻拔，并设置光滑桩作对比.在冻深达到桩长全长时，全螺旋小叶片桩具有良好的抗冻拔效果（仅为光滑桩的19.5%）.使用COMSOL内嵌热应力模块，模拟三维条件下螺旋桩抗冻拔过程，并与室内试验结果作对比.结果显示冻深只有桩长一半时，双螺旋小叶片桩明显减少桩体冻拔量.表明：通过数值分析可比选出抗冻拔的最优桩型，对于现场试验的光伏支架螺旋桩型设计提供参考.

关键词: 水热力三场顺序耦合, 抗冻拔, 螺旋桩, 数值分析

Abstract: Based on custom module of COMSOL, by introducing moisture-heat-stress sequential coupling model established, the jacking-up process of different helical piles under two-dimensional axisymmetric condition is simulated with using smooth pile for contrast. When the frost depth reaches full length of the pile, small-blade helicaled pile performs well in anti-jacking-up (19.5% of that of smooth pile). The embedded thermal stress module is used to simulate the anti-jacking-up process of helical pile under three-dimensional condition, the result of which is compared with laboratory test. The outcome shows that the jacking-up displacement of helical pile with two small blades is the least when the frost depth reaches half the length of the pile. It indicates: the optimal type is picked through numerical simulation, which can provide a reference to the design of helical pile of photovoltaic stents in field test.

Key words: moisture-heat-stress sequential coupling, anti-jacking-up, helical pile, numerical simulation

中图分类号:

TU473.1+2

王腾飞, 刘建坤, 刘晓强, 尚亚龙. 季节冻土区光伏支架螺旋桩基的冻胀数值分析研究[J]. 冰川冻土, 2016, 38(4): 1167-1174.

WANG Tengfei, LIU Jiankun, LIU Xiaoqiang, SHANG Yalong. Numerical simulation on anti-jacking-up performance of helical piles of photovoltaic stents in seasonal frozen region[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2016, 38(4): 1167-1174.

参考文献

[1] Chen Xiaobai, Liu Jiankun, Liu Hongxu, et al. Frost action of soil and foundation engineering[M]. Beijing: Science Press, 2006: 10-17. [陈肖柏, 刘建坤, 刘鸿绪, 等. 土的冻结作用与地基[M]. 北京: 科学出版社, 2006: 10-17.]
[2] Andersland O B, Ladanyi B. Frozen ground engineering[M]. Yang Ranghong, Li Yong, trans. 2nd ed. Beijing: China Architecture & Building Press, 2011: 177-179. [安德斯兰德, 洛达尼. 冻土工程[M]. 杨让宏, 李勇, 译. 2 版. 北京: 中国建筑工业出版社, 2011: 177-179.]
[3] Chen Ran. Study on anti-frost heaving characteristics of the helical piles in the seasonal frozen region[D]. Harbin: Harbin Institute of Technology, 2010. [陈然. 螺旋桩在季节性冻土场地抗冻拔性能分析[D]. 哈尔滨: 哈尔滨工业大学, 2010.]
[4] Jia Zhijie. The numerical analysis research of the mechanics character for new type precast helical pile[D]. Shenyang: Northeastern University, 2006. [贾志杰. 新型预制螺旋桩受力特性数值分析研究[D]. 沈阳: 东北大学, 2006.]
[5] Jia Yanmin, Guo Hongyu, Guo Qichen. Finite element analysis of bored pile-frozen soil interactions in permafrost[J]. Chinese Journal of Rock Mechanics and Engineering, 2007, 26: 3135-3140. [贾艳敏, 郭红雨, 郭启臣. 多年冻土区灌注桩桩-冻土相互作用有限元分析[J]. 岩石力学与工程学报, 2007, 26: 3135-3140.]
[6] Li Dongwei, Wang Renhe, Hu Pu, et al. A FEM analysis of cone-shaped pile coupling large deformation of frozen soil[J]. Journal of Glaciology and Geocryology, 2007，29(4): 640-644. [李栋伟, 汪仁和, 胡璞, 等. 冻土中锥形桩-土大变形有限元数值分析[J]. 冰川冻土, 2007，29(4): 640-644.]
[7] Wang Xin. Research of bored pile vertical carrying capacity in permafrost region[D]. Harbin: Northeast Forestry University, 2005. [王欣. 多年冻土地区钻孔灌注桩竖向承载力研究[D]. 哈尔滨: 东北林业大学, 2005.]
[8] Zhu Deju. Finite element analysis of bored pile in permafrost region[D]. Harbin: Northeast Forestry University, 2004. [朱德举. 多年冻土地区钻孔灌注桩的有限元分析[D]. 哈尔滨: 东北林业大学, 2004.]
[9] Cui Hao, Wang Renhe, Hu Pu. Study on bearing capacity of cone-shaped pile in frozen soil[J]. Low Temperature Architecture Technology, 2005(6): 93-94. [崔灏, 汪仁和, 胡璞. 冻土中锥形桩承载力特性研究[J]. 低温建筑技术, 2005(6): 93-94.]
[10] Mao Xuesong, Ma Biao. The stability study of frozen soil subgrade based on hydro-thermal coupling effect[M]. Beijing: China Communications Press, 2011: 210-229. [毛雪松, 马骉. 基于水热耦合效应的冻土路基稳定性研究[M]. 北京: 人民交通出版社, 2011: 210-229.]
[11] Bai Qingbo, Li Xu, Tian Yahu, et al. Equations and numerical simulation for coupled water and heat transfer in frozen soil[J]. Chinese Journal of Geotechnical Engineering, 2015(S2): 131-136. [白青波, 李旭, 田亚护, 等. 冻土水热耦合方程及数值模拟研究[J]. 岩土工程学报, 2015(S2): 131-136.]
[12] Tao Wenquan. Heat transfer[M]. Xi'an: Northwestern Polytechnical University Press, 2006: 100-112. [陶文铨. 传热学[M]. 西安: 西北工业大学出版社, 2006: 100-112.]
[13] Lu Ning, Likos W J. Unsaturated soil mechanics[M]. Beijing: Higher Education Press, 2012: 269-271. [卢宁, Likos W J. 非饱和土力学[M]. 北京: 高等教育出版社, 2012: 169-171.]
[14] Taylor G S, Luthin J N. A model for coupled heat and moisture transfer during soil freezing[J]. Canadian Geotechnical Journal, 1978, 15: 548-555.
[15] Xu Xuezu, Deng Yousheng. Experimental research of moisture migration in permafrost[M]. Beijing: Science Press, 1991: 15-20. [徐学祖, 邓友生. 冻土中水分迁移的实验研究[M]. 北京: 科学出版社, 1991: 15-20.]
[16] Zhang Wei, He Yuanqing, Liu Jing. Numerical analysis on the thermal regime around an anti-frost ballast subdrain within roadebed in deep seasonal frozen regions[J]. Journal of Glaciology and Geocryology, 2015, 37(4): 991-1001. [张蔚, 何元庆, 刘婧. 深季节冻土区路基防冻胀道砟碎石排水盲沟热状况的数值分析[J]. 冰川冻土, 2015, 37(4): 991-1001.]
[17] Leng Jingyan, Fu Xinping, Yang Junjie. Experimental research of the subgrade padding frost heaving of high-speed railway[J]. Journal of Glaciology and Geocryology, 2015, 37(2): 440-445. [冷景岩, 付新平, 杨军杰. 高速铁路路基填料冻胀实验研究[J]. 冰川冻土, 2015, 37(2): 440-445.]
[18] Dong Yuanhong, Niu Yonghong, Cui Weixiao, et al. Model test on the anti-frost engineering along the Harbin-Qiqihar passenger dedicated railway[J]. Journal of Glaciology and Geocryology, 2014, 36(4): 828-835. [董元宏, 牛永红, 崔维孝, 等. 哈尔滨-齐齐哈尔客运专线路基防冻工程模型试验研究[J]. 冰川冻土, 2014, 36(4): 828-835.]
[19] Zhang Zibai. Study on characteristic of the horizontal frost-heave forces behind the L-type retaining wall[D]. Beijing: Beijing Jiaotong University, 2014. [张子白. L型挡土墙墙背水平冻胀力特性研究[D]. 北京: 北京交通大学, 2014.]
[20] Wang Tengfei, Liu Jiankun, Zhao Huagang, et al. Experimental study on the anti-jacking-up performance of a helical pile for photovoltaic stents in a seasonal frozen region[J]. Journal of Zhejiang University: Science A (Applied Physics & Engineering), 2016, 17(7): 512-524.

季节冻土区光伏支架螺旋桩基的冻胀数值分析研究

Numerical simulation on anti-jacking-up performance of helical piles of photovoltaic stents in seasonal frozen region

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