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（上海市建筑科學(xué)研究院有限公司 上海市工程結(jié)構(gòu)安全重點(diǎn)實(shí)驗(yàn)室， 上海 200032）
［摘要］套筒灌漿連接是其豎向預(yù)制構(gòu)件最重要的連接方式，也是保證裝配整體式混凝土結(jié)構(gòu)性能達(dá)到等同現(xiàn)澆的關(guān)鍵，需對其灌漿質(zhì)量進(jìn)行嚴(yán)格管控。國內(nèi)外學(xué)者提出了許多針對套筒灌漿的質(zhì)量檢測和整治技術(shù)。首先對各類套筒灌漿質(zhì)量檢測方法的原理、特點(diǎn)與應(yīng)用現(xiàn)狀進(jìn)行了概括，并在綜合有效性、適用性和經(jīng)濟(jì)性的基礎(chǔ)上對各類方法進(jìn)行了比較與優(yōu)選。對于套筒灌漿事中檢測和質(zhì)量控制，建議采用預(yù)埋傳感器法；對于套筒灌漿事后檢測，建議采用鉆孔內(nèi)窺鏡法，必要時可采用X射線數(shù)字成像法或預(yù)埋鋼絲拉拔法進(jìn)行補(bǔ)充校核。然后，對套筒灌漿缺陷的評估與整治研究現(xiàn)狀進(jìn)行了總結(jié)。對于檢測后存在套筒灌漿缺陷的結(jié)構(gòu)，可采用補(bǔ)灌法恢復(fù)其結(jié)構(gòu)性能。最后，對后續(xù)研究與工程應(yīng)用進(jìn)行了展望。
［關(guān)鍵詞］裝配整體式混凝土結(jié)構(gòu)；套筒灌漿連接；預(yù)埋傳感器法；鉆孔內(nèi)窺鏡法；X射線數(shù)字成像法；補(bǔ)灌
中圖分類號：TU758-14文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2021)05-0104-13
Research progress of quality detection and defect repair for sleeve grouting in assembled monolithic concrete structure
XIAO Shun, LI Xiangmin, XU Qingfeng
(Shanghai Key Laboratory of Engineering Structure Safety, Shanghai Research Institute of Building Sciences Co., Ltd., Shanghai 200032, China)
Abstract:The grouted sleeve connectors are the most important method for connection of vertical prefabricated components, which is the key to ensure the performance of assembled monolithic concrete structure to be equal to cast-in-situ structure. The grouting quality should be strictly controlled. A number of quality detection and repair techniques for sleeve grouting have been proposed by domestic and foreign scholars. Firstly, the principles, characteristics and application status about all the detection methods were summarized. Then the comparison and selection of all the methods were made based on combination of effectiveness, applicability and cost. In grouting process, it is recommended to use the embedded sensor method to detect the defect. After the grouting is completed, it is recommended to use the hole-drilling method combined with endoscopy to detect the defect. If necessary, additional check can be performed by X-ray digital radiography method or embedded steel wire drawing method. Then, the research status of evaluation and repair for sleeve grouting defects were summarized. For structures with sleeve grouting defects after detection, the structure performance can be restored by supplementary grouting. Finally, the future research direction and engineering application were prospected.
Keywords:assembled monolithic concrete structure;grouted sleeve connector;embedded sensor method;hole-drilling method combined with endoscopy;X-ray digital radiography method;supplementary grouting
*住房和城鄉(xiāng)建設(shè)部研究開發(fā)項目（2017-K9-043），上海市科委社發(fā)領(lǐng)域課題（15DZ1203506，16DZ1201805，18DZ1205705）。
作者簡介：肖順，博士，博士后，Email: xiaoshundg@163.com；通信作者：李向民，博士，教授級高級工程師，Email: 13601902634@163.com。
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