低应变反射波法判别PHC管桩接头质量的研究

李正印; 柯宅邦; 刘东甲; 卢志堂; 郭杨

低应变反射波法判别PHC管桩接头质量的研究 English Version

1.合肥工业大学资源与环境工程学院,安徽合肥 230009 ； 2. 山东省城乡建设勘察院,山东济南 250031 ； 3. 安徽省建筑科学研究设计院,安徽合肥 230001

基金项目: 国家大学生创新性实验计划项目( 091035938)；住房和城

详细信息

作者简介:
李正印 (1989 – ) ,男,山东嘉祥人,本科生。

中图分类号: TU473.16
计量
- 文章访问数: 1351
- HTML全文浏览量: 2
- PDF下载量: 573
出版历程
- 收稿日期: 2011-08-01
- 发布日期: 2011-12-06

Tests on PHC pipe pile joint quality by low-strain reflected wave method

1. School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; 2. Shandong Province Investigation and Survey Institute of Urban and Rural Construction, Jinan 250031, China; 3. Anhui Institute of Building Research and Design, Hefei 230001, China

摘要

摘要: 由于单根管桩设计长度的限制,设计桩长较长时,需要接桩,目前主要的接桩方式是焊接。接头焊接质量的好坏会直接影响桩基的承载力、稳定性。同时在管桩施工过程中,由于压桩操作不规范、土层软弱变化等原因,可能造成管桩接头松动甚至断开,导致管桩整体稳定性丧失,引发严重的工程安全问题。为了研究低应变反射波法对管桩接头质量的检测效果,正确判断接头处是否存在质量问题,根据接桩特点,建立接头模型,进行了数值模拟。然后,通过制作模型桩,进行现场实验,对实测曲线和数值模拟曲线进行了比对分析,得出了有意义的结论。
- 低应变反射波法 /
- PHC 管桩 /
- 接头模型 /
- 管桩实验
Abstract: Pipe piles need to be connected in actual projects for the design length constraints of a single pile. Nowadays, the main pile extension method is welding. The quality of welding joints will directly affect the bearing capacity and stability of pile foundation. During the construction process of pipe pile, the non-standard piling operation, changes of soil layers and other factors may make joints become loose or broken and lose the overall stability of pipe pile, leading to serious security problems in the end. In order to study low-strain integrity test effect on the detection of the pipe pile joints and correctly identify the quality of joints, a joint model is established according to the connection feature s of pipes pile Numerical simulation is carried out. Some conclusions are drawn by making model piles, conducting field tests and analyzing theoretical and test curves.
- low-strain reflected wave method /
- PHC pipe pile /
- joint model /
- pipe pile test

HTML全文

参考文献(7)

[1]	黄良机 , 林奕禧 , 黄春晓 , 等 . 应力波在预制管桩接头处传播性能的试验研究 [J]. 工程质量 , 2005(6): 21 – 24. (HUANG Liang-ji, LIN Yi-xi, HUANG Chun-xiao, et al. Experimental research on conductivity of stress wave in the splicers of pre-cast pipe piles[J]. Quality Test, 2005(6): 21 – 24. (in Chinese))
[2]	刘奎荣 , 高映辉 , 罗振阳 . 预应力管桩三种主要质量事故的诊断 [J]. 西部探矿工程 , 2006( 增刊 ): 117 – 119. (LIU Kui-rong, GAO Ying-hui, LUO Zhen-yang. Diagnosis of three main quality accident of prestressed pipe pile [J]. West-China Exploration Engineering, 2006( S0 ): 117 – 119. (in Chinese))
[3]	张世虎 . 预应力管桩工程的质量控制浅析 [J]. 中国新技术新产品 . 2010(8): 73. (ZHANG Shi-hu. Discussion on quality control of pre-cast pipe piles[J]. China New Technologies and Products, 2010(8): 73. (in Chinese))
[4]	张吴渝 , 王雪峰 , 忻元跃 . 关于应力波在 PHC 管桩接头部位反射问题的探讨 [J]. 山西建筑 , 2010, 36 (20): 1 – 3. (ZHANG Wu-yu, WANG Xue-feng, XIN Yuan-yue. Discussion on the stress wave reflect on the PHC pipe pile joint position[J]. Shanxi Architecture, 2010, 36 (20): 1 – 3. (in Chinese))
[5]	JGJ 106 — 2003 建筑基桩检测技术规范 [S]. 北京 : 中国建筑工业出版社 , 2003. (JGJ — 106 — 2003 Technical code for testing of building foundation piles[S]. Beijing: China Architecture and Building Press, 2003. (in Chinese))
[6]	陈义全 , 任志国 , 刘东甲 . 非完整桩瞬态纵向振动的模拟计算 [J]. 2004, 27 (10): 1210 – 1214. (CHEN Yi-quan, REN Zhi-guo, LIU Dong-jia. Simulation and calculation of transient longitudinal vibration of non-integrite piles[J]. Journal of Hefei University of Technology ( Natural Science Edition ), 2004, 27 (10): 1210 – 1214. (in Chinese))
[7]	刘东甲 . 完整桩瞬态纵向振动的模拟计算 [J]. 合肥工业大学学报 ( 自然科学版 ), 2000, 23 (5): 683 – 687. (LIU Dong-jia. Simulation and calculation of transient longitudinal vibration of integrite piles[J]. Journal of Hefei University of Technology ( Natural Science Edition ). 2000, 23 (5): 683 – 687. (in Chinese))