钻孔咬合灌注桩在圆形基坑围护结构中的应用  

Application of Drilling Occlusive Piles in Circular Retaining Structure

作　　者：庄修伟 

机构地区：[1]中国水环境集团有限公司,北京101100

出　　处：《特种结构》2016年第3期61-64,共4页Special Structures

摘　　要：以圆形为特征的地下智能停车库在城市中日渐兴起,但其围护结构的计算方法及相关规范尚不成熟。本文以实际工程为背景,进行了基坑开挖阶段和正常使用阶段两种工况下的软件计算分析,并进行了抗震分析,然后以计算分析结果为依据,对两种常用的钻孔咬合灌注桩结构形式进行计算对比,选出最佳方案。提出在保证施工质量的前提下,采用钻孔咬合灌注桩的围护结构可作为结构主体的一部分用于永久性结构,为以后的类似圆形围护结构工程提供实用参考。The underground intelligent parking garage with circular character rising day by day in the city,but its retaining structure calculation method and relevant norms is not mature.Taking the actual project as the background,this article analyzed two kinds of conditions include foundation pit excavation phase and normal use phase though software,and seismic analysis was carried out,then based on calculation and analysis results,two kinds of commonly used drilling occlusive piles structure were calculated and compared to select the best scheme.It＇s put forward that retaining structure with the drilling occlusive piles can be used as part of the structure of main body used for permanent structure on the premise of guarantee the quality of construction,which could provide practical reference for future similar circular retaining structure engineering.

关 键 词：钻孔咬合灌注桩 围护结构 圆形 

分 类 号：TU753.3[建筑科学—建筑技术科学]