最小重复单元思想在计算复合地基面积置换率中的应用  

Application of the Minimum Repetitive Zone in Estimating the Area Replacement Ratio of Composite Soils in Ground Improvement

作　　者：郝伟东 储小润 HAO Weidong;CHU Xiaorun(China Harbor Engineering Co.Ltd.,Beijing 100027)

机构地区：[1]中国港湾工程有限责任公司,北京100027

出　　处：《土工基础》2022年第1期25-28,共4页Soil Engineering and Foundation

摘　　要：在计算不同布桩形式的复合地基面积置换率时,建筑地基处理技术规范采用传统的等效圆面积折算方法,对空间抽象思维能力要求较高,计算量较大。引入最小重复单元体的概念来选择桩土计算单元,详细的介绍了在计算不同布桩形式下复合地基面积置换率中的应用,并与规范法进行了对比,该方法更加容易理解且计算简单快捷,可为土木同行在实际工程中计算复合地基面积置换率这一重要参数时提供参考,亦可作为对规范中介绍的复合地基面积置换率计算方法的补充。In the ground improvement practice, the design parameter of the area replacement ratio in composite soils with different column spacings, the conventional equivalent circular area conversion method is traditionally used, which requires higher spatial abstract capability and requires many calculations. This article introduces a concept of minimum repetitive unit to select the cell of column and soil and the application on the calculation of area replacement ratio of composite soils under different column spacings and distributions. Compared with the conventional method, this method is easier to understand and has the advantage of simple calculation. This proposed method can provide guidance for the soil improvement practitioners for estimating the area replacement ratio.

关 键 词：最小重复单元 复合地基 面积置换率 计算方法 

分 类 号：TU472[建筑科学—结构工程]