斜井全断面变径滑模新工艺——在三峡工程永久船闸地下输水系统斜井砼施工中的应用

Development and Application of Full-face Variable Diameter Slipforms of Inclined Shafts

文章简要介绍了斜井全断面变径滑模结构、工作原理和主要技术性能指标。针对三峡工程永久船闸地下输水系统斜井具有数量多、长度短、体型复杂、边墙高度逐渐变化等特点。混凝土施工采用全断面变径滑模新工艺 ,斜井直段一次浇筑成型 ,洞身高度变化在滑升过程中自动完成 。

The construction,principle and main technical performance of the full\|face variable diameter slipforms of inclined shafts are concisely introduced.In underground water conveyance system for Three Gorges Projects permanent lock,the inclined shafts are large in number,short in length,complex in structure,changeable in height and so on.Some new techniques of the full\|face variable diameter slipforms are taken in concrete construction.The inclined shafts are accomplished with single\|pass pouring practice and the change of height is finished automatically with slipping.Its economic and social effect is obvious. [