基于压重平台反力装置的地基静载试验设计研究  

Experimental Design and Research on Foundation Static Load Based on Ballast Platform Reaction Device

作　　者：叶奕全 薛小剑 蔡海阳 Ye Yiquan;Xue Xiaojian;Cai Haiyang

机构地区：[1]福建省建筑科学研究院有限责任公司,福建福州350108

出　　处：《江苏建材》2024年第6期60-62,共3页Jiangsu Building Materials

摘　　要：针对某大型医院地基基础工程展开,考虑到场地复杂的土层情况及医院建筑的特殊功能对地基安全性和稳定性的高要求,选择了冲孔灌注桩作为地基处理方案。下文重点介绍了反压重力平台的构成,并基于压重平台反力装置进行了单桩竖向抗压静载试验及抗拔试验,对冲孔灌注桩的承载特性和稳定性进行了评估。结果显示,冲孔灌注桩具有良好的承载能力和抗拔性能,能够有效提升地基的稳定性和安全性。In view of the foundation project of a large hospital,considering the complex soil conditions of the site and the high requirements of the special functions of the hospital building for the safety and stability of the foundation,the punched cast-in-place pile was selected as the foundation treatment scheme.The composition of the counter-compression gravity platform was introduced,and the vertical compressive static load test and uplift test of the single pile were carried out based on the reaction device of the ballast platform,and the bearing characteristics and stability of the perforated cast-in-place pile were evaluated.The results show that the perforated cast-in-place pile has good bearing capacity and uplift resistance,which can effectively improve the stability and safety of the foundation.

关 键 词：地基工程 冲孔灌注桩 单桩竖向抗压试验 单桩竖向抗拔试验 

分 类 号：U443.154[建筑科学—桥梁与隧道工程]