预埋非接触钢丝拉拔成孔法检测套筒灌浆缺陷深度试验研究
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摘要
预埋非接触钢丝拉拔成孔法是在套筒出浆孔管道预埋钢丝,出浆孔管道内钢丝通过透明塑料管隔离,实现与灌浆料非接触;出浆孔管道外钢丝拉拔段长度≤50mm,灌浆后自然养护24h,可实现手动拉拔钢丝,操作简单易行。预埋非接触钢丝拉拔成孔后,通过仅带前视镜头的内窥镜可观测套筒灌浆是否饱满;通过带侧视镜头及测距功能的内窥镜可对灌浆缺陷进行成像并准确测量灌浆缺陷深度。
The embedded non-contact steel wire drawing hole-forming method is that embed the steel wire in the sleeve outlet pipe,the section of which inside is separated from grouting material by transparent plastic pipe,and the drawing section length of which outside does not exceed 50 mm,and in natural maintenance 24 hours after grouting, carry out manual drawing, which is easy to operate. After embedding non-contact steel wire drawing hole-forming,through the common endoscope with only forward-view lens,it can be observed whether the sleeve grouting is full or not. Through the advanced endoscope with side-view lens and ranging function,the grouting defect can be imaged and the depth of grouting defect can be measured.
The embedded non-contact steel wire drawing hole-forming method is that embed the steel wire in the sleeve outlet pipe,the section of which inside is separated from grouting material by transparent plastic pipe,and the drawing section length of which outside does not exceed 50 mm,and in natural maintenance 24 hours after grouting, carry out manual drawing, which is easy to operate. After embedding non-contact steel wire drawing hole-forming,through the common endoscope with only forward-view lens,it can be observed whether the sleeve grouting is full or not. Through the advanced endoscope with side-view lens and ranging function,the grouting defect can be imaged and the depth of grouting defect can be measured.
引文
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[6]孙彬,毛诗洋,王霓,等.预成孔法检测装配式结构套筒灌浆饱满度的试验研究[J].建筑结构,2018,48(23):7-10.
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[8]郭辉,徐福泉,代伟明,等.便携式X射线检测钢筋套筒灌浆连接密实度试验研究[J].施工技术,2018,47(22):40-43.
[2]郑清林,王霓,陶里,等.灌浆套筒力学性能影响因素分类及其机理分析[J].四川建筑科学研究,2017,43(3):5-9.
[3]高润东,李向民,许清风.装配整体式混凝土建筑套筒灌浆存在问题与解决策略[J].施工技术,2018,47(10):1-4,10.
[4]LI Xiangmin,GAO Rundong,WANG Zhuolin,et al.Research on the applied technology of testing grouting compaction of sleeves based on damped vibration method[C]//Proceedings of the2017 2nd International Conference on Civil,Transportation and Environmental Engineering(ICCTE 2017),2017.
[5]高润东,李向民,王卓琳,等.基于预埋钢丝拉拔法的套筒灌浆饱满度检测技术研究[J].施工技术,2017,46(17):1-5.
[6]孙彬,毛诗洋,王霓,等.预成孔法检测装配式结构套筒灌浆饱满度的试验研究[J].建筑结构,2018,48(23):7-10.
[7]张富文,李向民,高润东,等.便携式X射线技术检测套筒灌浆密实度研究[J].施工技术,2017,46(17):6-9,61.
[8]郭辉,徐福泉,代伟明,等.便携式X射线检测钢筋套筒灌浆连接密实度试验研究[J].施工技术,2018,47(22):40-43.