湿陷性黄土地区过河段地下综合管廊施工关键技术  

Key technology for the construction of underground utility tunnel when crossing river in the collapsible loess regions

作　　者：黄金坤 鲁照香 汪磊[3] 尹万云 金仁才 HUANG Jinkun;LU Zhaoxiang;WANG Lei;YIN Wanyun;JIN Rencai(China MCC17 Group Co.,LTD.,Maanshan 243000,China;School of Naval Architecture,Ocean&Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;School of Urban Railway Transportation,Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]中国十七冶集团有限公司,安徽马鞍山243000 [2]上海交通大学船舶海洋与建筑工程学院,上海200240 [3]上海工程技术大学城市轨道交通学院,上海201620

出　　处：《四川建材》2023年第5期113-115,共3页Sichuan Building Materials

摘　　要：地下综合管廊可充分利用地下空间,提升安全运转品质,提高防灾抗灾能力,改善交通状况,创造和谐生态环境,实现城市可持续发展。但地下综合管廊建造距离长、复杂环境地段较多,尤其在我国分布范围很广的湿陷性黄土地区的施工较为困难,且施工工程中会遇到河流、涵洞等一些恶劣环境,因此,需要研究新的施工技术以适应施工中遇到的各种难题。以湿陷性黄土地区的某管廊项目工程为背景,结合湿陷性黄土的地质特点和过河段的复杂环境,提出了围堰-架设引流管、钢板桩+压密注浆复合支护、加腋区现浇结构建造和回填注浆等一系列湿陷性黄土地区过河段施工技术,为后续类似复杂环境下过河段管廊工程建设提供技术支撑和建造经验。The underground utility tunnel can make full use of the underground space and improve the quality of safe operation,the ability to prevent and resist disasters and traffic conditions,creating a harmonious ecological environment and sustainable urban development.However,the construction distance of the underground comprehensive pipe corridor is long,and there are many complex environmental sections,especially in the collapsible loess areas with a wide distribution range in China,and some harsh environments such as rivers and culverts will be encountered in the construction project.That need developing new construction techniques to adapt to various problems encountered in construction.This paper takes the project of a utility tunnel project in the collapsible loess regions as the background,combining with the geological characteristics of the collapsible loess and the complex environment of the crossing river section,a series of construction techniques for the crossing river section of the collapsible loess regions,such as cofferdam-erection drainage pipe,steel sheet pile+compact grouting composite support,cast-in-place structure construction and backfill grouting in the axillary area,are proposed.This work can provide technical support and construction experience for the subsequent construction of the utility tunnel project in the crossing river section under similar complex environment.

关 键 词：地下综合管廊 湿陷性黄土 过河段 围堰导流 回填注浆 

分 类 号：TU990.3[建筑科学—市政工程]