HCMW工法结合圆环内支撑基坑支护设计  

Excavation support design of HCMW method combined with ring inner bracing

作　　者：赵升峰 陈祉阳[1] 蔡云 赵千云 章新 Zhao Shengfeng;Chen Zhiyang;Cai Yun;Zhao Qianyun;Zhang Xin(Nanjing Institute of Surveying,Mapping & Geotechnical Investigation Co.,Ltd.,Nanjing 210019,China;College of Transportation Science & Engineering,Nanjing Tech University,Nanjing 210009,China)

机构地区：[1]南京市测绘勘察研究院股份有限公司,南京210019 [2]南京工业大学交通与运输工程学院,南京210009

出　　处：《建筑结构》2019年第3期120-124,共5页Building Structure

基　　金：南京市测绘勘察研究院有限公司立项课题(2016RD05)

摘　　要：HCMW工法是一种新型的基坑支护形式,其结合混凝土圆环内支撑可有效地保护基坑周边环境。以采用HCMW工法进行基坑支护的泰兴国际大酒店二期工程的设计和实施为背景,对该支护形式应用于基坑工程中的特点进行了初步分析;对预制工字形桩与混凝土冠梁、围檩的连接,以及混凝土圆环内支撑的设计等作了详细的介绍,最后根据计算结果与现场实测情况分析了实施的效果。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.

关 键 词：HCMW工法 圆环内支撑 基坑 预制工字形桩 

分 类 号：TU473[建筑科学—结构工程]