钻孔结合内窥镜法检测套筒灌浆饱满度试验研究
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摘要
钻孔结合内窥镜法是在套筒出浆孔管道或套筒出浆孔和灌浆孔连线任意位置钻孔,然后沿孔道底部伸入内窥镜探头测量套筒灌浆缺陷深度。该法无需预埋任何元件,操作简单易行,且对灌浆套筒力学性能无明显不利影响,可用于在建或已建装配整体式混凝土结构套筒灌浆质量检测。基于套筒内钢筋锚固长度要求、套筒产品构造特征及灌浆缺陷深度,提出灌浆饱满度计算公式,实现套筒灌浆饱满度检测的量化评估。
The hole-drilling method combined with endoscopy is that drilling hole in the sleeve outlet pipe or at any position of the connecting line between outlet and inlet of sleeve,and then the endoscope probe is inserted along the bottom of the hole to measure the grouting defect depth. Without embedding any component,this method is simple and easy to operate,and has no obvious adverse effect on the mechanical properties of the grouting sleeve,and it can be used to test the sleeve grouting quality of monolithic precast concrete structure under construction or existed. Based on the requirement of anchoring length of steel bars in the sleeve,the structural characteristic of the sleeve products and the grouting defect depth,a formula for calculating the grouting plumpness is put forward,and the quantitative assessment of the grouting plumpness of sleeve is realized.
The hole-drilling method combined with endoscopy is that drilling hole in the sleeve outlet pipe or at any position of the connecting line between outlet and inlet of sleeve,and then the endoscope probe is inserted along the bottom of the hole to measure the grouting defect depth. Without embedding any component,this method is simple and easy to operate,and has no obvious adverse effect on the mechanical properties of the grouting sleeve,and it can be used to test the sleeve grouting quality of monolithic precast concrete structure under construction or existed. Based on the requirement of anchoring length of steel bars in the sleeve,the structural characteristic of the sleeve products and the grouting defect depth,a formula for calculating the grouting plumpness is put forward,and the quantitative assessment of the grouting plumpness of sleeve is realized.
引文
[1]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.
[2]周若涵,翁雯.钢筋套筒灌浆接头的质量监督及检测研究[J].工程质量,2018,36(10):111-113.
[3] 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.
[4]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.
[5]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.
[6]郭辉,代伟明,刘英利,等.电阻法监测钢筋套筒灌浆饱满度试验研究[J].施工技术,2018,47(22):37-39,95.
[7]李向民,高润东,许清风,等.基于X射线数字成像的预制剪力墙套筒灌浆连接质量检测技术研究[J].建筑结构,2018,48(7):57-61.
[8]石磊,崔士起,宋其伟,等.装配整体式混凝土结构工程灌浆套筒连接钢筋接头与水泥基灌浆料检测实例[J].建筑技术,2015,46(S2):402-403.
[9]许清风,李向民,高润东,等.一种基于钻芯成孔的套筒灌浆饱满度的检测方法:201811339789. 8[P].2018-11-12.
[10]高润东,李向民,张富文,等.一种适用套筒中部灌浆缺陷的检测方法:201910016380. 0[P].2019-01-08.
[11]李向民,刘辉,高润东,等.用于套筒出浆孔管道钻芯成孔的超长小直径空心圆柱形钻头:201920060733. 2[P].2019-01-15.
[2]周若涵,翁雯.钢筋套筒灌浆接头的质量监督及检测研究[J].工程质量,2018,36(10):111-113.
[3] 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.
[4]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.
[5]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.
[6]郭辉,代伟明,刘英利,等.电阻法监测钢筋套筒灌浆饱满度试验研究[J].施工技术,2018,47(22):37-39,95.
[7]李向民,高润东,许清风,等.基于X射线数字成像的预制剪力墙套筒灌浆连接质量检测技术研究[J].建筑结构,2018,48(7):57-61.
[8]石磊,崔士起,宋其伟,等.装配整体式混凝土结构工程灌浆套筒连接钢筋接头与水泥基灌浆料检测实例[J].建筑技术,2015,46(S2):402-403.
[9]许清风,李向民,高润东,等.一种基于钻芯成孔的套筒灌浆饱满度的检测方法:201811339789. 8[P].2018-11-12.
[10]高润东,李向民,张富文,等.一种适用套筒中部灌浆缺陷的检测方法:201910016380. 0[P].2019-01-08.
[11]李向民,刘辉,高润东,等.用于套筒出浆孔管道钻芯成孔的超长小直径空心圆柱形钻头:201920060733. 2[P].2019-01-15.