大直径深嵌岩桩的承载特性与桩长设计研究 |
| |
引用本文: | 龚成中,何春林,戴国亮.大直径深嵌岩桩的承载特性与桩长设计研究[J].路基工程,2011,0(2):14-16. |
| |
作者姓名: | 龚成中 何春林 戴国亮 |
| |
作者单位: | 1.淮阴工学院建筑工程学院, 江苏淮安 223001 |
| |
摘 要: | 基于自平衡桩基测试技术,根据荆岳长江公路大桥一桩的静载荷试验,对其泥质岩地区大直径钻孔嵌岩桩,在嵌岩深度较大情况下的承载特性进行了研究。结果表明:大直径深长嵌岩桩桩顶的Q-S曲线主要是缓变型为主,属摩擦型桩。根据实测的桩侧荷载位移曲线,利用荷载传递法,研究了桩端缩短5,10m两种情况下桩顶的荷载大小及其相应的位移情况,为桩长的设计提供了依据。
|
关 键 词: | 桥梁工程 承载特性 自平衡法 桩侧阻力 桩长设计 |
收稿时间: | 2019-11-09 |
Study on Bearing Characteristic of Large-diameter Deep-socketed Pile and Pile Length Design |
| |
Authors: | GONG Cheng-zhong HE Chun-lin DAI Guo-liang |
| |
Institution: | 1.School of Architectural Engineering,Huaiyin Institute of Technology,Huai'an 223001,Jiangsu,China;2.School of CivilEngineering,Southeast China University,Nanjing 210096,China) |
| |
Abstract: | Based on self-balancing pile foundation testing technology,the bearing characteristic of large-diameter bored socketed pile in mud rock area with deep socket length is studied according to the static load test on a pile of Jingyue Yangtze River Highway Bridge.The result shows that Q-S Curve of large-diameter deep-socketed pile tip is mainly of easement curve,belonging to friction pile.According to the measured lateral load displacement curve,the load of pile tip when shortened 5 m and 10 m and the corresponding displacement are separately studied using load transfer method,which provides reference for pile length design. |
| |
Keywords: | bridge engineering bearing characteristic self-balancing method pile lateral resistance pile length design |
本文献已被 维普 万方数据 等数据库收录! |
| 点击此处可从《路基工程》浏览原始摘要信息 |
| 点击此处可从《路基工程》下载免费的PDF全文 |
|