摘要
以福建地区典型的土岩组合地层条件为背景,对深基坑支护结构、止水方案的选取进行分析对比,介绍了锚拉桩在土岩组合地层中的近似设计计算方法。基坑现场监测结果表明:门架式锚拉支护体系在当地土岩组合地层中具有很好的实用性,在控制基坑水平位移、施工空间受限及不利于锚杆施工的地层等方面优势较明显,为类似土岩结合地区深基坑支护设计工程提供借鉴。
Taking typical soil-rock dualistic structure geological conditions in Fujian region as background, this article analyzed and compared for selection of retaining and sealing scheme of deep foundation pit, introduced the approximate design and calculation method of gantry anchor pile in soil-rock dualistic structure. According to the field deformation monitoring re- sults of foundation pit, gantry anchor piles supporting system is practical in soil-rock dualistic structure geological conditions; has obvious advantages of effectively control the deformation of foundation pit, constructing in limited space and geological conditions which is not applicable to construction of anchor etc; provides reference for the design of deep foundation pit supporting in the area of similar soil-rock dualistic structure geological conditions.
出处
《岩土工程技术》
2017年第3期137-141,148,共6页
Geotechnical Engineering Technique
关键词
土岩组合地层
门架式锚拉桩
锁脚锚杆
咬合桩
soil-rock dualistic structure
gantry anchor piles
end-locked anchors
joint-piles
