|本期目录/Table of Contents|

[1]李升智,徐辉,王璐楠,等.固结度对复合土工排水网-废弃黏土界面拉拔特性的影响[J].浙江理工大学学报,2024,51-52(自科三):407-417.
 LI Shengzhi,XU Hui,WANG Lunan,et al.The effect of consolidation degree on the pull out behavior of  geocomposite drainage layer abandoned clayed soil interface[J].Journal of Zhejiang Sci-Tech University,2024,51-52(自科三):407-417.
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固结度对复合土工排水网-废弃黏土界面拉拔特性的影响()
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浙江理工大学学报[ISSN:1673-3851/CN:33-1338/TS]

卷:
第51-52卷
期数:
2024年自科第三期
页码:
407-417
栏目:
出版日期:
2024-05-10

文章信息/Info

Title:
The effect of consolidation degree on the pull out behavior of  geocomposite drainage layer abandoned clayed soil interface
文章编号:
1673-3851 (2024) 05-0407-11
作者:
李升智徐辉王璐楠王锦楠
浙江理工大学建筑工程学院,杭州 310018
Author(s):
LI Shengzhi XU Hui WANG Lunan WANG Jinnan
School of Civil Engineering and Architecture, Zhejiang Sci-Tech University, Hangzhou 310018, China
关键词:
固结度复合土工排水网黏土拉拔特性界面强度
分类号:
TU411
文献标志码:
A
摘要:
中国沿海沿江软土地区产生的废弃渣土主要为渗透性差、抗剪强度低的黏性土,采用排水筋材进行加筋回填时,深入认识固结度对复合土工排水网(Geocomposite drainage layer, GDL)黏性土界面强度的影响规律是工程渣土堆填场稳定性分析的重要基础。以武汉某基坑开挖渣土和商品化GDL为试验材料,开展了12组固结拉拔试验,分析了固结度对GDL黏土界面拉拔特性的影响规律。结果表明:界面拉拔曲线为应变软化型,固结度越大,达到峰值和残余拉拔力的位移也越大;随着固结度提高,界面峰值和残余摩擦角均呈增大趋势,而界面峰值和残余黏聚力变化不显著;随着拉拔位移的增大,GDL拉应力逐渐由坡形分布转向均匀分布。当固结度从0增大至90%时,界面峰值和残余强度分别提高了20.8%~111.1%和21.8%~101.7%,排水网芯的拉力承担比例则从80.4%~81.8%降低至62.5%~63.4%。该研究有助于深入认识GDL黏土界面的相互作用机理,为废弃黏土堆填工程的稳定性分析提供依据。

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2023-12-11
网络出版日期:2024-03-13
基金项目: 国家自然科学基金面上项目(42172309)
作者简介: 李升智(1997-),男,河南信阳人,硕士研究生,主要从事环境土工方面的研究
通信作者: 徐辉,E-mail: xuhui@zstu.edu.cn
更新日期/Last Update: 2024-06-19