黄土深基坑排桩支护内力计算探讨  

Discussion on the internal force calculation of deep foundation pit piles in loess

作　　者：邱本胜 周荣 Qiu Bensheng;Zhou Rong(Wuhan Changjiang Kechuang Technology Development Co.,Ltd.,Wuhan Hubei 430014,China;South to North Water Transfer Middle Route Water Source Co.,Ltd.,Danjiangkou Hubei 442700,China)

机构地区：[1]武汉长江科创科技发展有限公司,湖北武汉430014 [2]南水北调中线水源有限责任公司,湖北丹江口442700

出　　处：《山西建筑》2025年第9期92-95,共4页Shanxi Architecture

摘　　要：排桩支护结构具有受力明确、结构变形小的特点,在黄土地区深基坑支护中普遍应用,但对其工作机理认识、计算模型及计算方法选择等方面研究仍有待完善。基于黄土结构强度高的特点,分析基坑排桩间黄土对排桩支护结构内力的影响,建立黄土深基坑排桩支护刚度分配法计算模型,结果表明:刚度分配法模型的支护结构内力计算成果曲线能够与实测监测值很好地拟合,说明该模型及其计算方法对于黄土深基坑排桩支护结构内力计算适用,可为黄土地区深基坑排桩支护内力计算提供参考。The piled retaining structure has the characteristics of clear stress and small structural deformation,and is widely used in deep foundation pit support in loess areas.However,there is still room for improvement in understanding its working mechanism,calculation model,and selection of calculation methods.Based on the high structural strength of loess,this paper analyzes the mechanism of foundation pit support loess between piles to analyze the impact on the internal forces of the piled retaining structure,a calculation model for the stiffness distribution method of the piled retaining structure in deep foundation pits on loess was established.The results show that the internal force calculation result curve of the supporting structure of the stiffness distribution method model can be well fitted with the monitoring value.The fitting shows that the model and its calculation method are suitable for calculating the internal forces of the deep foundation pit row pile supporting structure in loess areas,and can provide a reference for calculating the internal forces of the deep foundation pit row pile supporting structure in loess areas.

关 键 词：深基坑 排桩支护 计算模型 内力计算 

分 类 号：TU473.2[建筑科学—结构工程]