- 摘 要
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（1 中國建筑科學研究院有限公司， 北京 100013； 2 昆山市建設工程質量檢測中心， 蘇州 215337）
［摘要］灌漿飽滿度是影響鋼筋套筒灌漿連接性能的重要因素，基于灌漿不飽滿的范圍通常位于套筒出漿孔及其以下部位的特征，設計了一種預成孔裝置，在灌漿施工完畢后將該裝置代替橡膠塞放入出漿孔進行封堵，待灌漿料凝固后取出成孔棒即可形成檢測孔道。研究結果表明：漏漿造成灌漿不飽滿的施工缺陷均位于套筒頂部，在出漿孔進行灌漿飽滿度檢查是有效的；熱縮預成孔法切實可行，成本低廉，可重復使用且不增加施工工序；利用檢測孔道，便于采用內窺鏡進行定性檢查和定量檢測，并可根據(jù)內窺鏡三維成像數(shù)字掃描結果精確計算灌漿不飽滿范圍，檢測結果直觀且精度高。
［關鍵詞］套筒； 灌漿飽滿度； 檢測； 預成孔法； 裝配式結構
中圖分類號：TU758-14, TU375文獻標識碼：A文章編號：1002-848X(2018)23-0007-04
Experimental study on the preformed aisle method for inspecting the grouting fullness of sleeve of prefabricated structures
Sun Bin1， Mao Shiyang1， Wang Ni1, Zhang Jinfeng1， Gu Sheng2
(1 China Academy of Building Research, Beijing 100013， China;2 Kunshan Construct Engineering Quality Testing Center, Suzhou 215337， China)
Abstract:The grouting fullness is an important factor affecting the grouting connection performance between sleeve and rebar. Based on the fact that the insufficient grouting generally occurs at outlet port of sleeve and its lower part, a preformed-aisle device was designed. The device was placed at the outlet port instead of the rubber plug to seal off after grouting construction was completed. When the grout has been curdled, the inspect aisles were formed by taking out the preformed-aisle bar. The research results show that: the construction defects of insufficient grouting caused by grout leakage are located at the top of the sleeve, and it is effective to check the grouting fullness at the outlet port of sleeve; the heat shrinkage preformed aisle method is feasible, cheap, reusable, and avoid increasing the construction process; it is convenient to use the endoscope for qualitative inspection and quantitative detection by the detection aisle, and according to the digital scanning results of the three-dimensional imaging endoscope, the range of insufficient grouting can be accurately calculated, which are direct and accurate.
Keywords:sleeve; grouting fullness; inspection; preformed aisle method; prefabricated structure
* 國家重點研發(fā)計劃項目（2016YFC0701800），中國建筑科學研究院應用技術研究課題（20150112330730050）,住房和城鄉(xiāng)建設部科技項目（2016-K5-043）。
作者簡介：孫彬，博士，研究員，Email：sunbinmail@163.com。
