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（1 綠地浙江事業(yè)部， 杭州 310015； 2 上?？辈煸O(shè)計(jì)研究院(集團(tuán))有限公司， 上海 200070）
［摘要］以杭州綠地華家池項(xiàng)目深基坑支護(hù)工程中應(yīng)用的錨桿為例，介紹了一種主筋可拆除的可回收式錨桿，以及基坑支護(hù)設(shè)計(jì)方案、現(xiàn)場基本試驗(yàn)及回收試驗(yàn)、錨桿的構(gòu)造制作、施工安裝及拆卸。實(shí)例表明該技術(shù)簡單可行，在基坑支護(hù)中使用該技術(shù)能夠滿足安全要求，又能在使用完成后及時(shí)拆除回收，對周邊場地后續(xù)施工不產(chǎn)生影響。
［關(guān)鍵詞］基坑支護(hù)； 可回收式錨桿； 無粘結(jié)鋼絞線； 回收試驗(yàn)
中圖分類號：TU753文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2019)10-0110-05
Application of recyclable anchor in foundation pit support engineering
Li Hongjun1， Zhang Kaipu2
（1 Zhejiang Real Estate Division, Greenland Holding Group, Hangzhou 310015, China;2 Shanghai Geotechnical Investigation & Design Institute Co., Ltd., Shanghai 200070, China）
Abstract:The anchors used in the deep foundation pit support engineering of Hangzhou Greenland Huajiachi Project were taken as an example to introduce a kind of recyclable anchor with demountable main reinforcement. In addition, design scheme of foundation pit support, field basic test and recycle test, construction, installation and disassembly of anchor rod were introduced. Engineering examples show that this technique is simple and feasible. Using this new anchor technique in foundation pit support can meet the safety requirements of excavation and casing no subsequent impact on construction in surrounding areas because the anchors can be removed and recycled timely after use.
Keywords:foundation pit support; recyclable anchor; unbonded steel strand; recycle test
作者簡介：李紅軍，碩士，高級工程師，一級注冊結(jié)構(gòu)工程師，Email：Lhj-zju@qq.com。
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