门式架悬吊法地下管线就地保护施工
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（中建四局第六建筑工程有限责任公司， 合肥 230011）[摘要] 地下建筑的施工过程中，必然会遇到既有地下管线的改迁、就地保护等施工措施，为避免因管线拆迁对管线使用造成中断现象，所以合适的就地保护措施尤为重要。本例以广州天河体育中心综合改造项目（第二标段）工程，基坑南侧长途光缆保护工程为例，对门式架悬吊法地下管线就地保护的施工技术进行探讨，并为此类地下管线就地保护施工提供一些值得借鉴的方法与建议。[关键词] 地下建筑; 就地保护; 门式架中图分类号：TU990.3 文献标识码：A 文章编号：1002-848X(2013)S2-0714-03作者简介：程群，硕士，总工程师，Email：sjchengq@cscec.com。Portal frame suspension method of underground pipeline in situ conservation constructionCheng Qun, Liu Fangling, Ye Wenjuan(China Construction 4th Engineering Bureau 6th Co. , Ltd. , Hefei 230011, China)Abstract: During the construction of underground buildings, it will certainly encounter the diversion of existing underground pipeline or in situ protection and so on. To avoid interruption phenomenon caused by the pipeline demolition, and protected in situ is particularly important. The protection of long-distance optical cable in south of the foundation pit, in Guangzhou Tianhe Sports Center Comprehensive Reconstruction Project (second section) , for example, the portal frame suspension construction technology of underground pipeline in situ conservation construction is discussed, and for this kind of underground pipeline construction in situ protection method ,we provide some worthy of reference and recommendations.Keyword: underground structure; protected in situ; portal frame
