摘要
利用DLTWAVE软件,通过信号匹配,对静载作用下桩的承载力分布进行了评价。此外,在所有桩附近进行了标准贯入试验。通过比较两个相同的灌注桩静载和动载试验得到的静力承载力,对动载试验结果进行了校正。因此,采用传统的静力分析公式,利用现有的粘土层相关关系,计算桩侧摩阻力和桩端阻力。粘土的稠度对轴向阻力的发展起着重要的作用。对于非常坚硬的粘土,DLTWAVE表示轴向阻力的发展小于从公式(静态分析)中计算得到的阻力。DLT二次打桩时的表面摩擦阻力比初次打桩时大。
This paper used DLTWAVE software to match signals and to evaluate the load distribution of pile under static load.Standard inserting test was carried out near all piles.Static bearing capacity was obtained through comparison between the same filling pile static load and dynamic load,and the dynamic load test result was rectified.Therefore,traditional static force analysis formula and existing soil stratum relation were used to calculate lateral friction and cap resistance.The consistency of cohesive soil plays an important role in the resistance along the axial direction.As for very hard cohesive soil,DLTWAVE showed that the axial resistance is smaller than the resistance calculated through the formula(static analysis).Surface friction of DLT secondary piling is larger than that of first piling.
作者
曾杰彪
ZENG Jie-biao(The second Engineering Co.,Ltd.,of China Railway 18th Bureau Group,063000,Tangshan,Hebei,China)
出处
《建筑技术》
2023年第7期869-871,共3页
Architecture Technology
关键词
桥梁施工
动载试验
静载试验
承载力
bridge construction
dynamic test
static test
bearing capacity
