武汉周大福金融中心后压浆大直径嵌岩桩承载力计算  

Calculation of bearing capacity of post grouting large diameter rock socketed pile in Wuhan Chow Tai Fook Financial Center

作　　者：杨双乐 Yang Shuangle(Wuhan Geotechical Engineering and Surveying Co.,Ltd.,Wuhan 430022,China)

机构地区：[1]武汉市勘察设计有限公司,湖北武汉430022

出　　处：《山西建筑》2023年第5期76-79,共4页Shanxi Architecture

摘　　要：对现行行业标准和地方标准中后压浆大直径嵌岩桩承载力计算公式进行比较,指出了适用于武汉周大福金融中心单桩竖向承载力计算的公式,并在考虑上部土层尺寸效应、后压浆提高效应和桩端岩石三向应力状态后形成了三种计算方法,以计算结果与试桩成果进行对比验证,得出了哪种计算方法最优的结论。By comparing the calculation formula of bearing capacity of post grouting large diameter rock socketed pile in the current industry standard and local standard, the formula applicable to the calculation of vertical bearing capacity of single pile in Wuhan Chow Tai Fook Financial Center is pointed out, and three calculation methods are formed after considering the size effect of upper soil layer, post grouting improvement effect and three-way stress state of rock at the pile tip, and the calculation results are compared with the test pile results, the conclusion of which calculation method is the best is obtained.

关 键 词：大直径嵌岩桩 岩石三轴压缩强度 三向应力状态 

分 类 号：TU473[建筑科学—结构工程]