关于多桩型复合地基置换率的理解  

Understanding about replacement ratio of multi type pile composite foundation

作　　者：肖耀廷[1,2] 党发宁[1] 梁学战[2] 

机构地区：[1]西安理工大学岩土工程研究所,陕西西安710048 [2]湖北文理学院,湖北襄阳441053

出　　处：《西安理工大学学报》2014年第3期336-339,共4页Journal of Xi'an University of Technology

基　　金：水利部公益性行业科研专项资助项目(201201053-03);陕西省黄土力学与工程重点实验室重点科研计划资助项目(09JS103)

摘　　要：通过计算给出了单桩型复合地基置换率的含义,单桩型复合地基置换率是一根桩的面积与处理地基面积的比值;在单桩型复合地基置换率算法的基础上提出了一种多桩型复合地基置换率的算法,通过与规范方法的比对,结果一致,从而证明本文提出方法的正确性;由于本文采用的是主辅桩分开计算置换率,能够考虑布桩型式的不同,故具有更明确的力学意义。Through calculation first, this paper gives out the implication of replacement rate in the composite foundation of single type pile. The replacement rate of the composite foundation of single type pile is the area ratio between a pile area and its treatment area. Later on, a kind of multi- type pile algorithm of composite foundation replacement rate is suggested on the basis of the single type pile algorithm of composite foundation. It is found that through the contrast with the specified method, the results are in agreement with each other, where by improving that the method suggested in this paper is correct. What this paper adopts is the separation calculation of replacement rate of the main and auxiliary？？ pile, so that the method in this paper is able to take the different types of pile layout into account, being of definite significance of mechanics.

关 键 词：多桩型复合地基 置换率 承载力 布桩方式 

分 类 号：TU43[建筑科学—岩土工程]