西北地区沥青混凝土心墙坝坝体填筑料层间关系  

Inter-Layer Relationship of Filling Materials for Asphalt Concrete Core Dam in Northwest China

作　　者：胡浩[1] HU Hao

机构地区：[1]新疆水利水电勘测设计研究院有限责任公司,新疆乌鲁木齐830000

出　　处：《山西水利科技》2023年第1期6-9,13,共5页Shanxi Hydrotechnics

摘　　要：沥青混凝土心墙作为土石坝常用的防渗体,其防渗效果显著,适应变形能力强。以西北地区某项目的沥青混凝土心墙坝为例,结合2个天然料场的详查资料,C1料场作为坝体填筑料场,但因颗粒间关系不满足滤土、排水效果,不能直接用作筑坝料。针对坝体的砂砾石填筑料、过渡料及下游堆石料之间的相互作用进行分析,并通过转换保护土与被保护土的形式,对过渡料、填筑料及堆石料的层间关系进行复核,进而得到满足滤土、排水要求的颗粒级配关系。As the common impervious core of earth-rock dam,asphalt concrete core has remarkable impervious effect and strong adaptability to deformation.Taking the asphalt concrete core dam of a project in northwest China as an example,combined with the detailed survey data of two natural quarries,C1 quarry is used as the dam filling quarry,but it cannot be directly used as the dam material because the relationship between particles does not meet the filtering and drainage effects.The interaction between the sand gravel filling materials,transition materials and downstream rockfill materials of the dam body is analyzed,and the inter-layer relationship of the transition materials,filling materials and rockfill materials is reviewed by changing the form of the protective soil and the protected soil,so as to obtain the particle grading relationship that meets the requirements of filtering and drainage.

关 键 词：土石坝 沥青混凝土心墙 层间 过渡料 

分 类 号：TV544[水利工程—水利水电工程]