基于有限元模拟的填砂竹节桩工作性能研究
PDF下载 (373)蔡邦国,姜玉龙,童魏烽,王奎华,刘 鑫.基于有限元模拟的填砂竹节桩工作性能研究[J].宁波大学学报(理工版),2019,32(1):68-71.DOI:
CAI Bang-guo,JIANG Yu-long,TONG Wei-feng,WANG Kui-hua,LIU Xin.Performance analysis of sand-filled nodular pile based on finite element simulation[J].Journal of Ningbo University(Natural Science & Engineering Edition),2019,32(1):68-71.DOI:
| Title: | Performance analysis of sand-filled nodular pile based on finite element simulation |
| 作者: | 蔡邦国, 姜玉龙, 童魏烽, 王奎华, 刘 鑫 |
| Author(s): | CAI Bang-guo, JIANG Yu-long, TONG Wei-feng, WANG Kui-hua, LIU Xin |
| 关键词: | 填砂竹节桩; 桩土应力比; 孔隙水压力 |
| Keywords: | ABAQUS; sand-filled nodular pile; pile-soil stress ratio; pore-water pressure |
| 分类号: | TU43 |
| 文献标识码: | A |
| 摘要: | 利用ABAQUS有限元软件建立理论模型, 对新型复合桩基—–填砂竹节桩的工作性能进行了理论分析. 结果表明: (1)在地基处理中, 填砂竹节桩比传统圆管桩具有一定的优越性; (2)竹节桩的竹节间距越大, 竹节高度越小, 桩周土体孔隙水压力消散越快, 竹节厚度对其影响不大; (3)对于填砂竹节桩工艺, 填砂的级配和渗透系数对桩周土体孔隙水压力消散影响很小. |
| Abstract: | Theoretical analysis of the working performance of sand-filled nodular pile has been carried out by using finite element software ABAQUS. The results show that: (1) The sand-filled nodular pile has some advantages in foundation treatment compared with the conventional circle pile; (2) For the sand-filled nodular pile, the larger the node distance and the smaller the node height, the quicker the pile soil dissipation of the pore-water pressure, and it is little affected by the node thickness; (3) The particle gradation and the permeability coefficient of the filled sand have little influence on the dissipation of pore-water pressure. |
| 参考文献 /References: | [1] 张日红, 吴磊磊, 陈洪雨, 等. 一种填砂竹节桩及其施工方法: 104389305A[P]. 2015-03-04. [2] Horiguchi T, Karkee M B. Load tests on bored PHC nodular piles in different ground conditions and the bearing capacity based on simple soil parameters[J]. Journal of Architecture & Building Science, 2017, 1(1):89-94. [3] Honda T, Hirai Y, Sato E. Uplift capacity of belled and multi-belled piles in dense sand[J]. Soils & Foundations, 2011, 51(3):483-496. [4] Karkee M B, Kanai S, Horiguchi T. Quality assurance in bored PHC nodular piles through control of design capacity based on loading test data[EB/OL]. [2017-12- 15]. http://www.japanpile.co.jp/ir/uploads/02_7.pdf. [5] 周佳锦, 王奎华, 龚晓南, 等. 静钻根植竹节桩承载力及荷载传递机制研究[J]. 岩土力学, 2014, 35(5):1367-1376. [6] 周佳锦, 龚晓南, 王奎华, 等. 静钻根植竹节桩抗拔承载性能试验研究[J]. 岩土工程学报, 2015, 37(3):570-576. [7] 费康, 张建伟. ABAQUS在岩土工程中的应用[M]. 北京: 中国水利水电出版社, 2013:88-125. [8] 苏立君, 张宜健, 王铁行. 不同粒径级砂土渗透特性试验研究[J]. 岩土力学, 2014, 35(5):1289-1294. |
| 备注/Memo: | 收稿日期: 2018－04－16. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/第一作者: 蔡邦国（1974－）, 男, 浙江温州人, 高级工程师, 主要研究方向: 工程建设及管理. E-mail: 82282053@qq.com*通信作者: 姜玉龙（1973－）, 男, 湖南岳阳人, 高级工程师, 主要研究方向: 建筑与土木工程. E-mail: 690561392@qq.com 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
