黄河积石峡水电站中孔泄洪洞非结合段顶拱模板及支撑系统设计与施工  

Design and Construction of Formworks and Their Supports for Crown at Non-transition Section of Middle-outlet Flood Discharge Tunnel,Jishixia Hydropower Project

作　　者：张明 李天鸿 

机构地区：[1]中国水利水电第四工程局有限公司,西宁810007

出　　处：《西北水电》2013年第1期36-38,共3页Northwest Hydropower

摘　　要：黄河积石峡水电站中孔泄洪洞进口非结合段(中0+42 m～中0+71.5 m)为全断面混凝土衬砌,衬砌断面由方形断面渐变到城门洞形断面,高度由14 m渐变为14.201 m,宽度由8 m渐变为10 m,由于该部位体型变化大,顶拱衬砌混凝土厚度大,该部位顶拱模板及支撑系统的设计比较复杂,经过我们对该部位体型及设计要求仔细分析研究,选用了合理的模板及支撑系统方案,最终成功解决了这一难题。the non-transition section at inlet of middle-outlet flood discharge tunnel, Jishixia Hydropower Project, is lined by concrete at full section. The lined section is transited from square to arched one, height from 14 m to 14. 201 m and width from 8 m to 10 m. Design of formworks and their supports for the crown at this section is much complicated because the outlet at this section changes largely and the lining concrete of the crown is thick. Through careful analysis and study on the outline of this section and design requirements, reasonable scheme for formworks and their support system is finalized and this difficulty is salved successfully.

关 键 词：积石峡水电站 中孔泄洪洞 顶拱模板及支撑 

分 类 号：TV554[水利工程—水利水电工程]