桩底约束条件对弧形排桩-连系梁内力影响研究

doi:10.3969/j.issn.1674-0696.2015.04.15

重庆交通大学学报（自然科学版） ›› 2015, Vol. 34 ›› Issue (4): 82-87.DOI: 10.3969/j.issn.1674-0696.2015.04.15

• 港口航道·水利水电·资源环境 • 上一篇下一篇

桩底约束条件对弧形排桩-连系梁内力影响研究

张志伟，邓荣贵，王振永，钟志彬

西南交通大学土木工程学院，四川成都 610031

收稿日期:2014-04-04 修回日期:2015-03-27 出版日期:2015-08-30 发布日期:2015-09-18
作者简介:张志伟（1979—），男，吉林长春人，博士研究生，主要从事边坡及滑坡治理方面的研究。E-mail:zwzhangswjtu@163.com。
基金资助:
国家自然科学基金项目(41272321)；高等学校博士学科点专项科研基金项目(20120184110023)

Study on the Effect of Different Constraint Condition at Pile Bottom on Internal Force Distribution of Arc Row Piles with Arc Coupling Beam Internal Force Distribution of Arc Row Piles with Arc Coupling Beam

Zhang Zhiwei，Deng Ronggui，Wang Zhenyong，Zhong Zhibin

School of Civil Engineering，Southwest Jiaotong University，Chengdu 610031，Sichuan，China

Received:2014-04-04 Revised:2015-03-27 Online:2015-08-30 Published:2015-09-18

摘要/Abstract

摘要： 弧形排桩-连系梁抗滑结构为多次超静定结构，将桩顶弧形连系梁计算模型简化为无铰拱，视抗滑桩与弧形连系梁之间的约束力为冗力，利用桩顶与弧形连系梁之间的变形协调条件，建立了抗滑结构的整体柔度方程；在桩底自由、铰支及固定等3种不同桩底约束条件下，分别求解桩梁之间的约束冗力，比较了3种桩底约束条件下弧形连系梁的内力，及抗滑桩的内力和位移。研究表明：桩底固定时，桩底部弯矩较大；桩底自由时，弯矩明显减小，桩身位移增加；在桩顶连系梁的约束下，减小桩身锚固段长度，能够减小桩身底部弯矩的影响规律。

关键词: 岩土工程, 抗滑结构, 弧形排桩, 弧形连系梁, 桩底约束, 内力分布

Abstract: The model for arc coupling beam can be simplified as hingeless arch, according to the high order statically indeterminate characteristics of the spatial antislide structure, with the redundant forces between beam and pile top, by using deformation compatibility to set up flexibility equation of new spatial antislide structure. Based on the different constraint conditions such as freedom, hinge and fixation at the pile bottom to solve the redundant forces, then calculate and compare the internal force of arc coupling beam and the internal force and displacement of pile among the different constraint conditions at the pile bottom, and the influence law of internal force and displacement by different constraint conditions was obtained. That the moment at the bottom of pile is larger as fixed, but reduce obviously as free and displacement increase. By the constraint of coupling beam, shortening the length of anchoring section can reduce the moment at the bottom of pile.

Key words: geotechnical engineering, anti-slide structure, arc row piles, arc coupling beam, constraint of pile bottom, internal force distribution

中图分类号:

TU753.3

张志伟，邓荣贵，王振永，钟志彬. 桩底约束条件对弧形排桩-连系梁内力影响研究[J]. 重庆交通大学学报（自然科学版）, 2015, 34(4): 82-87.

Zhang Zhiwei，Deng Ronggui，Wang Zhenyong，Zhong Zhibin. Study on the Effect of Different Constraint Condition at Pile Bottom on Internal Force Distribution of Arc Row Piles with Arc Coupling Beam Internal Force Distribution of Arc Row Piles with Arc Coupling Beam[J]. Journal of Chongqing Jiaotong University(Natural Science), 2015, 34(4): 82-87.

参考文献

［1］罗伟,李亮,赵炼恒,等.临河岩石边坡抗滑稳定性分析［J］.公路交通科技,2013,30(8):23-28,42.
Luo Wei,Li Liang,Zhao Lianheng,et al.Study on anti-slide stability of rock slope along river［J］.Journal of Highway and Transportation Research and Development,2013,30(8):23-28,42.
［2］王恭先.滑坡防治中的关键技术及其处理方法［J］.岩石力学与工程学报,2005,24 (21):20-29.
Wang Gongxian.Key technique in landslide control and its handling measures［J］.Chinese Journal of Rock Mechanics and Engineering,2005,24 (21):20-29.
［3］贺建清,张家生,梅松华.弹性抗滑桩设计中几个问题的探讨［J］.岩石力学与工程学报,1999,18(5):600-602.
He Jianqing,Zhang Jiansheng,Mei Songhua.Inquiring into some questions in anti-slide pile［J］.Chinese Journal of Rock Mechanics and Engineering,1999,18(5):600-602.
［4］ Hassiotis S,Chameau J,Gunaratne M.Design method for stabilization of slopes with piles［J］.Journal of Geotechnical and Geoenvironmental
Engineering,1997,123(4): 314-323.
［5］ Poulos H G.Design of reinforcing piles to increase slope stability ［J］.Canadian Geotechnical Journal,1995,32(5): 808-818.
［6］ Long M.Database for retaining wall and ground movements due to deep excavations ［J］.Journal of Geotechnical and Geoenvironmental Engineering,2001,127(3): 203-224.
［7］ Ashour M,Ardalan H.Analysis of pile stabilized slopes based on soil-pile interaction［J］.Computers and Geotechnics,2012,39: 85-97.
［8］ Ito T,Matsui T,Hong W P.Extended design method for multi-row stabilizing piles against landslide ［J］.Soils and Foundations,1982,22(1): 1-13.
［9］ Kourkoulis R,Gelagoti F,Anastasopoulos I,et al.Slope stabilizing piles and pile-groups: Parametric study and design insights［J］.Journal of Geotechnical and Geoenvironmental Engineering,2011,137(7): 663-677.
［10］曾庆义,刘明成.支护桩圈梁的作用机理与计算分析［J］.岩土力学,1995,16(2):74-82.
Zeng Qingyi,Liu Mingcheng.Mechanism and calculating analysis for ring beam of soldier piles ［J］.Rock and Soil Mechanics,1995,16(2): 74-82.
［11］高印立,徐建新,陈环.排桩与圈梁协同作用下考虑开挖过程的挠曲方程法［J］.土木工程学报,2001,34(1):67-72.
Gao Yinli,Xu Jianxin,Chen Huan.A flexing equation method considering the cooperative action between row of piles and ring beam during excavation procedure ［J］.China Civil Engineering Journal,2001,34(1):67-72.
［12］Fenelli G B,Pagano L.Computing top-beam effects in retaining walls［J］.Journal of Geotechnical and Geoenvironmental Engineering,1999,125(8): 665-672.
［13］张志伟,邓荣贵.弧形间隔排桩-桩顶拱梁空间抗滑结构理论研究［J］.岩土力学,2013,34(12):3403-3409,3430.
Zhang Zhiwei,Deng Ronggui.Theoretical study on spatial anti-slide structure of arc interval row piles with coupling beam on the pile top［J］.Rock and Soil Mechanics,2013,34(12): 3403-3409,3430.

[1]	王宗建1,2，李畅1，肖亮2，卢谅2. 加筋黏性土加筋效果的三轴试验研究[J]. 重庆交通大学学报（自然科学版）, 2021, 40(07): 99-106.
[2]	叶险峰，韩以江，祝敕捷，程雍. 基于改进变权-TOPISIS的锚固边坡失稳风险评估[J]. 重庆交通大学学报（自然科学版）, 2021, 40(02): 108-115.
[3]	张霄，尹占超，刘啸，段崇豪，郝彭帅. 综合物探法在运营岩溶隧道病害探查中的应用[J]. 重庆交通大学学报（自然科学版）, 2020, 39(10): 60-66.
[4]	何叶1,2，赵明阶1，汪魁1，吉跃辉1. 基于电阻率试验的真空饱水-干燥循环砂岩性能分析[J]. 重庆交通大学学报（自然科学版）, 2020, 39(09): 127-131.
[5]	任松1，王乐1，谢凯楠1,2，姜德义1，蒋翔1. 基于声发射计数信息熵的页岩拉压破坏临界特征试验研究[J]. 重庆交通大学学报（自然科学版）, 2020, 39(08): 101-107.
[6]	包小华1，章宇1，徐长节2，付艳斌1，崔宏志1，谢雄耀3. 双线盾构隧道施工沉降影响因素分析[J]. 重庆交通大学学报（自然科学版）, 2020, 39(03): 51-60.
[7]	倪文兵. 基于静力学理论的地下水浮力研究[J]. 重庆交通大学学报（自然科学版）, 2020, 39(03): 61-68.
[8]	唐红梅，王平，王林峰. 变化裂隙岩体的压缩破坏RFPA数值模拟[J]. 重庆交通大学学报（自然科学版）, 2020, 39(02): 103-110.
[9]	周恩全，伊思航，许想，陆建飞. 基于热力学耗散的饱和砂土循环液化特性研究[J]. 重庆交通大学学报（自然科学版）, 2020, 39(02): 111-117.
[10]	秦网根1,2,蔡正银1,关云飞1,李小梅1. 典型区域软弱土室内水泥固化三轴CD试验[J]. 重庆交通大学学报（自然科学版）, 2020, 39(01): 103-108.
[11]	王恒1，蒋先念1，李树建2，贾智丹1. 三峡库区危岩体劣化特征及变形破坏模式研究[J]. 重庆交通大学学报（自然科学版）, 2019, 38(12): 92-96.
[12]	张建经1 ，马东华1，曾鹏毅1，孙延军2，何梦2. 新型便携式钻孔剪切仪研发与测试分析[J]. 重庆交通大学学报（自然科学版）, 2019, 38(11): 90-97.
[13]	吴锦华1，袁智洪2，周泳峰3. 古滑坡泥灰岩模拟相似材料试验研究[J]. 重庆交通大学学报（自然科学版）, 2019, 38(10): 81-86.
[14]	孙元1，田维强1，林德洪1，杨晴雯2，杨峥3. 开挖边坡变形监测及稳定性分析[J]. 重庆交通大学学报（自然科学版）, 2019, 38(09): 81-87.
[15]	洪伟，徐超凡，吉锋. 水电站料场开口线外边坡开挖稳定性分析[J]. 重庆交通大学学报（自然科学版）, 2019, 38(08): 80-85.

桩底约束条件对弧形排桩-连系梁内力影响研究

Study on the Effect of Different Constraint Condition at Pile Bottom on Internal Force Distribution of Arc Row Piles with Arc Coupling Beam Internal Force Distribution of Arc Row Piles with Arc Coupling Beam

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics