| 大直径软岩嵌岩桩侧阻发挥系数取值分析 |
| |
| 引用本文： | 蔡江东,姜振泉.大直径软岩嵌岩桩侧阻发挥系数取值分析[J].工程勘察,2006(2):15-18. |
| |
| 作者姓名： | 蔡江东 姜振泉 |
| |
| 作者单位： | 中国矿业大学资源学院,江苏,徐州,221008;淮阴工学院建工系,江苏,淮阴,223001;中国矿业大学资源学院,江苏,徐州,221008 |
| |
| 摘 要： | 据《建筑桩基技术规范》(JGJ94-94),嵌岩桩桩周土总极限侧阻计算采用折减系数法,《规范》提供的侧阻发挥系数仅考虑了桩端硬质岩支承和桩周土质条件,没能反映软岩支承及长径比l/d>30的嵌岩桩,更没考虑嵌岩桩的侧阻发挥过程。本文根据工程试桩资料,分析桩周土侧阻发挥过程及侧阻发挥系数取值问题,结果表明嵌岩桩桩周土侧摩阻力发挥除与桩周土土性、桩端支承强度有关外,还与土层相对桩身的位置等诸多因素有关。
|
| 关 键 词： | 嵌岩桩 现场试验 侧阻发挥系数 软岩 |
Analysis of the Skin Friction Coefficient for Large Diameter Rock-Socket Pile in Weak Rock |
| |
| Cai Jiangdong et al..Analysis of the Skin Friction Coefficient for Large Diameter Rock-Socket Pile in Weak Rock[J].Geotechnical Investigation & Surveying,2006(2):15-18. |
| |
| Authors: | Cai Jiangdong |
| |
| Affiliation: | Cai Jiangdong et al. |
| |
| Abstract: | Ultimate skin friction of pile shaft can be determined by "Code for Pile Foundation of Building".This method,however,only considers the factors of pattern and soil condition around the pile and the strength of rock at the bottom of the pile.It neglects many other factors affected the skin friction of pile shaft. Based on the field load testing,this paper analyzes the mechanism of skin friction distribution and assesses the mobilization coefficient of ultimate skin friction of pile shaft. |
| |
| Keywords: | rock-socket pile field testing mobilization coefficient of skin friction weak rock |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
