阿尔塔什面板堆石坝软岩趾板基础开挖施工技术

摘要

新疆阿尔塔什水利枢纽工程大坝趾板基础为软岩,岩石极为破碎,裂隙较为发育,基础开挖成形困难.施工过程中,通过合理的分区分层和爆破设计,保证了趾板基础成形质量,为后续趾板浇筑、灌浆、大坝填筑提供了有利的施工条件.详细介绍了阿尔塔什大坝趾板基础开挖的施工方法.%The rock in dam toe slab foundation of Aertashi Water Control Project in Xinjiang is soft rock.The rock is extremely broken and the fractures are relatively developed,so the foundation excavation is difficult to take shape.During construction process,the shape of toe slab foundation is guaranteed by rational zoning,layered and blasting design,which provides favorable construction conditions for subsequent toe slab pouring,grouting and dam filling.The construction method of toe slab foundation excavation of Aertashi Dam is introduced in detail.