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（1 南京市測繪勘察研究院股份有限公司， 南京 210019；2 南京工業(yè)大學(xué)交通與運(yùn)輸工程學(xué)院， 南京 210009）
［摘要］HCMW工法是一種新型的基坑支護(hù)形式，其結(jié)合混凝土圓環(huán)內(nèi)支撐可有效地保護(hù)基坑周邊環(huán)境。以采用HCMW 工法進(jìn)行基坑支護(hù)的泰興國際大酒店二期工程的設(shè)計(jì)和實(shí)施為背景，對(duì)該支護(hù)形式應(yīng)用于基坑工程中的特點(diǎn)進(jìn)行了初步分析；對(duì)預(yù)制工字形樁與混凝土冠梁、圍檁的連接，以及混凝土圓環(huán)內(nèi)支撐的設(shè)計(jì)等作了詳細(xì)的介紹，最后根據(jù)計(jì)算結(jié)果與現(xiàn)場實(shí)測情況分析了實(shí)施的效果。
［關(guān)鍵詞］HCMW工法； 圓環(huán)內(nèi)支撐； 基坑； 預(yù)制工字形樁
中圖分類號(hào)：TU473文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2019)03-0120-05
Excavation support design of HCMW method combined with ring inner bracing
Zhao Shengfeng1,2, Chen Zhiyang1, Cai Yun1, Zhao Qianyun2, Zhang Xin1
(1 Nanjing Institute of Surveying, Mapping & Geotechnical Investigation Co., Ltd., Nanjing 210019, China;2 College of Transportation Science & Engineering, Nanjing Tech University, Nanjing 210009, China)
Abstract:High strength concrete mixed wall(HCMW) method is a new type of supporting form of excavation.The combination of concrete ring inner bracing and HCMW method can effectively protect the environment around excavation. Based on the design and construction of excavation supporting structure in Taixing International Hotel second-phase project with HCMW method, the characteristic of the application of HCMW method in excavation was preliminary analyzed; the connection of prefabricated I-shaped pile and concrete top beam or purlin, and the design of concrete ring inner bracing were introduced in detail. And finally, according to the results of calculation and field measurement, the effect of implementation was analyzed.
Keywords:HCMW method; ring inner bracing; excavation; prefabricated I-shaped pile
*南京市測繪勘察研究院有限公司立項(xiàng)課題（2016RD05）。
作者簡介：趙升峰，碩士，工程師，注冊土木工程師（巖土），Email: 442877591@qq.com。
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