防洪工程冲孔灌注桩常见施工问题分析
Analysis on Common Construction Problems of Punching Pile in Flood Control Works
黄超1
作者信息
- 1. 福建宏涛工程咨询有限公司,福建 三明 365000
- 折叠
摘要
为了探究防洪工程冲孔灌注桩施工问题及处理措施,以福建省三明市沙溪流域防洪工程为例进行分析,并对该工程部分冲孔灌注桩进行超声波透射检测.结果显示,HH0+518.39号桩和HH0+619.29 号桩的声速分别为5.2 和5.5km/s,波幅分别为1 200 和1 180pV,且二者的功率谱密度均未发生变化,表明HH0+518.39 号桩和HH0+619.29 号桩均不存在缺陷,为Ⅰ类桩.而其他桩的声速、波幅及功率谱密度均在相应位置发生突变,表明其他桩均存在一定缺陷.
Abstract
In order to explore the construction problems and treatment measures of punching pile in flood control project,the flood control project in Shaxi basin,Sanming city,Fujian province,is studied,and the ultrasonic transmission detection was conducted on some punch-in pile in this project.The results showed that the sound speed of HH0+518.39 and HH0+619.29 piles were 5.2 and 5.5km/s respectively,and the wave amplitude was 1 200and 1 180pV respectively,and the power spectral density of both did not change.It can be seen that both HH0+518.39 piles and HH0+619.29 piles have no defects and are class I piles.However,the sound velocity,wave amplitude and power spectral density of other piles are all changed in the corresponding positions,indicating that other piles have certain defects.
关键词
防洪工程/冲孔灌注桩/常见问题/解决措施/超声波透射Key words
flood control works/punching pile/common problems/solutions/ultrasonic transmission引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据