Evaluation method for collapsibility of channel engineering with Loess foundation based on moistening deformation

被引：0

作者：

Zhang A. ^{[1
]}

Xing Y. ^{[2
]}

Wang H. ^{[3
]}

Guo M. ^{[1
]}

Ren W. ^{[1
]}

机构：

[1] College of Water Resources and Agricultural Engineering, Northwest A&F University, Yangling

[2] China Institute of Water Resources and Hydropower Research, Beijing

[3] Engineering Quality Inspection Centre, Administration of Xinjiang Ili River Basin Development and Construction, Ili

来源：

| 2017年 / International Research and Training Center on Erosion and Sedimentation and China Water and Power Press卷 / 48期

关键词：

Channel engineering; Collapsibility; Evaluation method; Loess;

D O I：

10.13243/j.cnki.slxb.20160685

中图分类号：

TU4 [土力学、地基基础工程];

学科分类号：

081401 ;

摘要：

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. © 2017, China Water Power Press. All right reserved.

引用

页码：41 / 51and60

页数：5119