水利学报2017，Vol.48Issue(1)：41-51,60,12.DOI:10.13243/j.cnki.slxb.20160685
基于增湿变形的渠道工程黄土渠基湿陷性评价方法
Evaluation method for collapsibility of channel engineering with Loess foundation based on moistening deformation
摘要
Abstract
Collapsible deformation is a common problem for projects such as channel engineering in Loess regions.In China,the current practice of "Code for building construction in collapsible loess zone" (GB 50025-2004) has defects that not suitable for channel projects,especially on the aspects of standard for engineering classification,selection of overlying pressure and standard for collapsibility classification.Supported by a large diversion channel project (the design discharge is 215.9 m3/s,and the depth of Loess reached 30m),this paper proposed a new evaluation method for collapsibility of channel engineering with Loess foundation based on moistening deformation,to compensate for the shortage of the existing specifications.The practical application shows that the proposed method has the advantages of complying with actual conditions of channel engineering and fully considering the effect of seepage control layer,according to the analysis of actual overlying pressure and moistening deformation.关键词
渠道工程/黄土/湿陷性/评价方法Key words
Channel engineering/Loess/Collapsibility/Evaluation method分类
建筑与水利引用本文复制引用
张爱军,邢义川,汪海涛,郭敏霞,任文渊..基于增湿变形的渠道工程黄土渠基湿陷性评价方法[J].水利学报,2017,48(1):41-51,60,12.基金项目
国家自然科学基金项目(51279171,51379220) （51279171,51379220）
