既有地基基础测试评估方法的应用  

Application of Testing and Evaluation Method for Existing Foundations

作　　者：雷永裕 LEI Yongyu(Institute of Engineering Investigation Co.Ltd.,Gansu Geological Exploration Center,China Building Materials,Tianshui 741000)

机构地区：[1]中国建筑材料工业地质勘查中心甘肃总队工勘院,甘肃天水741000

出　　处：《土工基础》2025年第1期134-138,共5页Soil Engineering and Foundation

摘　　要：甘肃天水七里墩110 kV变电站于1984年建成投运,结合该变电站主变扩建工程,介绍针对年代久远且无明确设计资料的既有地基基础测试评估方法的综合应用;面临周边环境、临空高压线以及环境电场等存在的复杂情况下,通过选用传统、经济且安全的测试方法:圆锥动力触探试验(DPT)、RTK测量技术以及回弹法混凝土抗压强度测试,对既有地基基础的后期再利用性能进行分析评判,并说明了三种测试方法的技术特点及优缺点,有很好的应用效果。The Gansu Tianshui Qilidun 110 kV substation was completed and was in operation in 1984.It is located in Qilidun,Qinzhou District,Tianshui City,Gansu Province.The substation is mainly responsible for the power supply of three traction transformers on the electrified railway of the Longhai Line in Qinzhou District,Maiji District,and some areas of Longnan City.In combination with the expansion project of the main transformer of the Gansu Tianshui Qilidun 1lo kV substation,this article mainly introduces the comprehensive application of existing foundation testing and evaluation methods that have a long history and no clear design data;In the face of complex situations such as surrounding environment,high voltage lines in the air,and environmental electric fields,traditional,economical,and safe testing methods such as dynamic cone penetration test(DCPT),real-time kinematic measurement technology,and rebound method concrete compressive strength test are selected to analyze and evaluate the later reuse performance of existing foundation;And explained the technical characteristics and advantages and disadvantages of the three testing methods,which have good application effects.

关 键 词：既有地基基础 圆锥动力触探试验 RTK测量技术 回弹法混凝土抗压强度测试 测试评估 

分 类 号：TU413[建筑科学—岩土工程]