建筑工程设计、施工与研究 |
最新目录 |
下期目录 |
过刊浏览 |
高级检索
|
|
盘距对支盘桩抗拔性能影响试验研究 |
|
|
|
EXPERIMENTAL STUDY ON ANTI-PULLING PROPERTIES OF DISK PILES WITH DIFFERENT DISK DISTANCE |
|
摘要 设计了3根不同盘距双盘支盘桩的室内模型试验,研究盘距对支盘桩承载性能的影响。结果表明,双盘桩的抗拔承载力随着盘距的增加有不同程度增大,但并不是呈比例的增加;当盘距较小时,荷载增大到一定值后下盘分担的荷载呈下降趋势,下盘承载力得不到充分发挥;盘距较大时,上下盘的承载力均能发挥,但存在明显的时间效应,当荷载增加到一定值后,上盘分担的荷载逐渐减小,下盘分担的荷载逐渐增大。 |
|
关键词: 支盘桩
盘距
抗拔性能
模型试验
|
Abstract:
Through three different indoor model tests of the double-disk pile with different disk distance, it shows that uplift capacity of double-disk pile increases in varing levels but not in proportion with the increasing of disk distance. When disk distance is small and load increases to a certain value,the lower disk sharing the load has the trend to decline, can not be full played ; When disk distance is large,the bearing capacity of the upper and lower disk can be full played .But this exists obvious time effect ,when load increases to a certain value, the upper disk sharing load gradually reduces , and the lower disk sharing load gradually increases.
|
Key words: disk piles disk distance uplift capacity model test |
|
[1] |
杨仁浩. 模型试验在基桩低应变检测中的应用[J]. 建筑技术, 2015, 46(6): 562-564. |
[2] |
王成武,龚成中. 支盘桩桩周土体位移场试验研究[J]. 建筑技术, 2015, 46(6): 511-514. |
[3] |
周庆东. 钢-混凝土双面组合连续梁截面刚度试验研究[J]. 建筑技术, 2014, 45(6): 557-560. |
[4] |
卢成原, 颜建华. 不同桩距支盘桩群桩水平承载性状试验研究[J]. 建筑技术, 2013, 44(4): 373-. |
[5] |
孙厚超, 李富荣, 张艳梅, 胡艳丽. 软土地区群桩挤土效应模型试验研究[J]. 建筑技术, 2012, 43(1): 71-73. |
[6] |
巨玉文 梁仁旺 赵明伟. 挤扩支盘桩的荷载传递法及数值模拟[J]. 建筑技术, 2004, 35(3): 204-205. |
[7] |
巨玉文 梁仁旺 赵明伟. 挤扩支盘桩承载变形特性的试验研究[J]. 建筑技术, 2003, 34(3): 178-180. |
|
|
|
|