摘要
复合型土钉墙可应用于含水丰富的粉细砂、砂卵石地层,亦可应用于厚度小于4m、无临时自稳能力的淤泥等饱和软弱地层,并可兼作挡水结构。复合型土钉墙中的帷幕体除了起着挡水、载水作用外,另外一个重要作用是固化饱和软弱地层,在支护工作面形成一道"屏障",保证支护工作面不出现流沙或淤泥流动等地层损失现象。结合某深基坑工程案例,介绍了土钉支护技术的具体应用情况。
Composite soil-nailing wall can be applied in water-rich fine sand stratum、cobble and sand stratum,and can also be used in soft soil layer which is less than 4m thickness,non-provisional self-stability silt and other saturated soft soil layers,and it can also be applied to water-retaining structure.Curtains of composite soil-nailing wall not only have the role of water-retaining and water-loading,but also have the role of curing saturated soft soil layer,which can form a barrier in supporting working face to ensure not appearing layer lose phenomenon such as shifting sand or flowing silt.Combining with a deep foundation pit project,the specific application situations of soil-nailing supporting technique are introduced.
出处
《混凝土与水泥制品》
北大核心
2011年第2期60-61,共2页
China Concrete and Cement Products
关键词
深基坑
土钉支护
工程应用
Deep foundation pit
Soil-nail support
Project application
