双液注浆结合钢管土钉喷锚支护在基坑支护中的应用  

Application of Hollow Soil Nailing and Shotcrete Grouted with Double Liquids in the Deep Excavations

作　　者：董文专 牟春梅[1] 邱建国[1] 

机构地区：[1]桂林理工大学,广西桂林541004 [2]湖南省农林工业勘察设计研究总院,长沙410007

出　　处：《土工基础》2015年第1期5-7,12,共4页Soil Engineering and Foundation

基　　金：国家自然科学基金项目(51169004);广西科技厅北部湾重点项目(2012GXNSFEA053002);广西岩土力学与工程重点实验室项目(11-CX-02-2);广西自然科学基金创新研究团队项目(2012GXNSFGA060001);广西科技攻关与新产品试制项目(桂科攻0992027-8)

摘　　要：由于粉质土、砂、砂卵石土和淤泥土等地层土体松散空隙率大,普通的土钉喷锚支护达不到预期效果。通过实例分析,采用双液注浆结合钢管土钉喷锚支护,其在粉质土、砂和砂卵石土等地层的基坑支护中效果比较好,可为国内同类工程提供借鉴。The application of the conventional soil nailing with shotcrete technique in the supporting structure of deep excavations in silty,sandy,gravelly or mucky soils has the often received poor results due to the loose or soft state of these soils.This case history indicates that the hollow soil nailing and shotcrete grouted with double liquids obtained the satisfactory results.

关 键 词：双液注浆 土钉喷锚 基坑 

分 类 号：TU473[建筑科学—结构工程]