大厚度自重湿陷性黄土地区管廊工程的地基处理  

Foundation Bed Treatment of Utility Tunnel Project in Heavy Thickness Self-Weight Collapsible Loess Area

作　　者：李鹏 李华龙 芦永曾 张景立 闫少华 井银军 LI Peng;LI Hualong;LU Yongzeng;ZHANG Jingli;YAN Shaohua;JING Yinjun(The Northwest Company of China Construction Third Engineering Bureau,Xi＇an,Shaanxi 710065,China）)

机构地区：[1]中建三局集团有限公司西北分公司,陕西西安710065

出　　处：《建筑施工》2018年第8期1271-1272,共2页Building Construction

摘　　要：自重湿陷性黄土在上覆土层受水浸湿后,易发生湿陷现象,会对其上建筑结构物带来不同程度的危害,如沉降、开裂、倾斜,甚至严重影响其安全和使用。西安市新兴南路缆线管廊工程需在自重湿陷性黄土区域进行施工,介绍了大厚度自重湿陷性地区的地基处理施工技术,通过试验段实践,该处理方式不仅满足了设计及规范要求,还解决了翻浆和橡皮土等难题,提升了施工效率。The self-weight collapsible loess is prone to collapsibility after the overlying soil layer being soaked by water, which will bring different degrees of damage to the upper building structure, such as settlement, cracking, tilting, and even serious impact on safety and application. The cable utility tunnel project of Xinxing South Road in Xi＇an shall be constructed in the self-weight collapsible loess area. The construction technology for foundation treatment in the heavy thickness self-weight collapsible area is introduced in this paper. Through the practice in the test section, such treatment method not only meets the design and specification requirements, but also solves difficulties of mudding and rubber soil, and improves construction efficiency.

关 键 词：大厚度自重湿陷性黄土 管廊工程 地基处理 回填施工 

分 类 号：TU753[建筑科学—建筑技术科学]