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桩锚支护结构在基坑工程中已有广泛应用,通过对锚杆施加一定的预应力,可使其产生的水平变形较小;通过调整锚杆的位置和层数可使支护桩内力分布较均匀;并且在基坑内形成无障碍空间,便于土方开挖运输和后期主体地下结构施工。结合金湖县中医院门诊病房综合楼基坑工程实例,简要介绍了深基坑桩锚支护结构的设计计算。
The pile-anchor supporting structure has been widely used in foundation pit engineering. By applying a certain amount of prestressing force to the anchor rod, the level deformation caused by the pile-anchor supporting structure can be made small. By adjusting the position and number of anchors, the internal force Distributed more evenly; and the formation of unobstructed space within the pit for earthwork excavation and transportation and the construction of the main underground structure later. Combined with the engineering practice of Jinhu County Hospital Outpatient Ward comprehensive building foundation pit, the design and calculation of pile-anchor supporting structure of deep foundation pit are introduced briefly.