四川盆地丘陵区冬水田段水利工程渠道结构型式探究--以毗河供水一期工程为例  

Exploration of the Structural Forms of Water Conservancy Engineering Channels in Winter Paddy Fields in Hilly Areas of the Sichuan Basin——Taking Phase I of the Pihe River Water Supply Project as an Example

作　　者：董劲 苏春 窦攀 DONG Jin;SU Chun;DOU Pan(Sichuan Provincial Institute of Water Resources Planning and Research,Chengdu Sichuan 610072;Sichuan Water Development Investigation,Desing&Research Co.,Ltd.,Chengdu Sichuan 610072)

机构地区：[1]四川省水利规划研究院,四川成都610072 [2]四川水发勘测设计研究有限公司,四川成都610072

出　　处：《四川水力发电》2024年第4期75-78,85,共5页Sichuan Hydropower

摘　　要：四川盆地丘陵区冬水田占比较大,冬水田为黏土层,属高液限黏土,土质一般呈饱和状态,透水性微弱,具有弱膨胀性和高压缩性,抗剪强度极低,渠道边坡无法自稳及基础承载力低为其主要的工程特点。以毗河供水一期工程为例,对该地层渠道进行了边坡稳定计算,并分析了边坡的破坏形式。根据稳定计算结果,提出了水利工程渠道结构型式及基础处理方式。该文可为四川盆地丘陵区冬水田段水利工程渠道设计提供参考。In the hilly areas of the Sichuan Basin,winter paddy fields account for a large proportion.The winter paddy fields are composed of clay layers with high liquid limit,typically in a saturated state with weak permeability.They exhibit weak expansibility,high compressibility,extremely low shear strength,and the inability of the channel slopes to self-stabilize,as well as low foundation bearing capacity,which are the main engineering characteristics.Taking the Pihe River Water Supply Phase I Project as an example,the author conducted stability calculations for the channel in this geological stratum,analyzed the failure modes of the slopes,and proposed structural forms and foundation treatment methods for water conservancy project channels based on the stability calculation results.This paper can serve as a reference for the design of water conservancy engineering channels in the winter paddy fields of the hilly areas in the Sichuan Basin.

关 键 词：毗河供水一期 高液限黏土 冬水田 渠道设计 基础处理 

分 类 号：TV91[水利工程—水利水电工程] TV732.6