土工基础

土工基础 ›› 2023, Vol. 37 ›› Issue (2): 245-248.

• 专题论述 • 上一篇    下一篇

基于秸秆排水体水平加筋的软土地基稳定性研究

陈晓俊1,王 山2,陈先勇2,高闻川3,殷 雳4   

  1. （1.江苏盐城水利建设有限公司，江苏盐城 224000；2.江苏禹衡工程质量检测有限公司，江苏盐城 224000；3.扬州大学，江苏扬州 225000；4.安徽理工大学，安徽淮南 232001）
  • 收稿日期:2021-10-14 修回日期:2021-10-20 出版日期:2023-04-30 发布日期:2023-04-20
  • 作者简介:陈晓俊（1965-），男，高级工程师，研究方向为水利工程施工新技术、新材料、新工艺、新产品等。

Study on the Stability of Soft Foundation Based on Straw Drainage Horizontal Reinforcement 

CHEN Xiaojun1, WANG Shan2, CHEN Xianyong2, GAO Wenchuan3， YIN Li4   

  1. (1.Jiangsu Yancheng Water Conservancy Construction Co. Ltd., Yancheng 224000；
    2.Jiangsu Yuheng Engineering Quality Inspection Co. Ltd., Yancheng 224000；
    3.Yangzhou University, Yangzhou 225000；
    4.Anhui University of Science & Technology, Huainan 232001)
  • Received:2021-10-14 Revised:2021-10-20 Online:2023-04-30 Published:2023-04-20

摘要： 为了研究软土地基在秸秆排水体加筋作用下的稳定性，采用数值模拟手段对不同加筋形式的软土地基进行相关研究，主要分析有无加筋、加筋层数以及加筋间距对软土地基的影响。模拟结果表明：秸秆排水体加筋可以改变软土地基破坏模式，加筋前为整体剪切破坏，加筋后为冲切破坏，加筋层数与加筋间距对软土地基的滑动破坏面影响较小；秸秆排水体加筋可以有效提高软土地基承载力；随着加筋层数的增大，软土地基承载能力越强；加筋间距越小，加筋效果越好。

关键词: 秸秆排水体, 水平加筋, 软土地基, 数值模拟

Abstract: To study the stability of the soft soil with the reinforced straws, this paper uses the numerical simulation method to study the reinforced soft soils. The influence of reinforcements is investigated by analyzing the soil with and without the reinforcement, the reinforcement layers and the reinforcement spacing within the soft soils. The simulation results show that reinforced can change the failure mode of the soft soils from the overall shear failure to the punching failure. The number of reinforcement layers and the reinforcement spacing have less effect on the sliding failure of the reinforced soft soils. Reinforced straw can effectively improve the bearing capacity of the soft soils, which will improve with the increasing o the reinforcement layers. And the smaller the bar spacing, the better the reinforcement effect.

Key words: Straw Reinforcement, Horizontal Reinforcement, Soft Soils, Numerical Simulation.

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