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高透水地层复合土钉墙的应用

Application of Composite Soil Nailing Wall to High Permeable Strata
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摘要 在透水性高的砂性土条件下,将止水帷幕水泥土搅拌桩与土钉相结合,形成复合土钉墙支护结构,是解决高透水地层基坑支护的有效方式。针对某具体工程实例,介绍了高透水地层采用复合土钉墙结构进行基坑支护的设计方案,并对基坑变形进行了监测。结果表明:采用复合土钉墙支护可满足基坑开挖对支护结构稳定及周边环境保护的要求,同时复合土钉墙结构受力合理、安全度高、施工简单方便、工期短、造价低,具有较好的经济和社会效益,可在类似工程中推广应用。 In the condition of highly permeable sandy soil,cement-soil mixing pile waterproof is combined with soil nail to form composite soil nail wall supporting structure.It is an effective way to form foundation pit support in highly permeable strata.Based on a practical engineering project,this paper introduces the design of foundation pit support using composite soil nailing wall structure in highly permeable strata,and the monitoring of the deformation of the pit.The monitoring results show that the composite soil nailing wall meets the requirements for the structure stability of foundation pit support and the protection of surrounding environment.At the same time,composite soil nail wall has many advantages,such as reasonable structure force,high security,easy construction,short construction time,low cost,and better economic and social effects,so it can be widely used in similar projects.
作者 陆益成 李娟
出处 《安全与环境工程》 CAS 北大核心 2012年第4期153-156,共4页 Safety and Environmental Engineering
关键词 高透水土层 复合土钉墙 基坑围护 highly permeable soil composite soil nailing wall foundation pit support
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