土工基础

›› 2013, Vol. 27 ›› Issue (4): 74-75.

• 工程实录 • 上一篇    下一篇

格栅状布桩的桩土面积置换率计算及在CAD中的实现

秦 景，路 威，赵 云   

  1. （中国水利水电科学研究院 工程设计研究中心，北京 100044）
  • 收稿日期:2013-05-20 出版日期:2013-08-20 发布日期:2013-08-27
  • 作者简介:秦景(1984-)，男，博士，中国水利水电科学研究院，工程师，研究方向为岩土工程设计。

Soil Replacement Ratio of Grid Distributed Columns Calculation in CADD

QING Jing, LU Wei, ZHAO Yun   

  1. （Engineering Design and Research Center,China Institute of Water Resources and Hydropower Research,Beijing,100044）
  • Received:2013-05-20 Online:2013-08-20 Published:2013-08-27

摘要： 通过对单排和双排格栅状布桩型式下复合土体单元的划分，来准确计算面积置换率m值，并介绍了CAD软件实现m值快速计算的具体步骤。结果表明：m值的准确性主要由两个因素决定：一是选择合适的复合土体单元，二是准确计算桩的断面面积As。通过CAD中的boundary和area命令，可以便捷地计算出As，简化m值的计算。

关键词: 复合地基, 桩土面积置换率, 复合土体单元

Abstract: This paper introduces an accurate method of calculating the soil replacement ratio (m value) of both single and double row grid distributed columns of composite ground in the soil improvement projects. The m value can also be obtained in CADD. The results indicate that the accuracy of m value is governed by the selection of the representative composite soil elements and the section area of the columns (As). Through the CADD commands of "Boundary" and "Area", the column section area can be easily calculated.

Key words: Composite Ground, Column-Soil Replacement Ratio, Column-Soil Element