陡坡坝段尖角部位浇筑方式研究  

Study on Pouring Method of Steep Slope Dam Section Sharp Corner Position

作　　者：郝志强 HAO Zhiqiang(Zhejiang Jiuzhou Water-Control Technology Co.,Ltd.,Quzhou 324003,China)

机构地区：[1]浙江九州治水科技股份有限公司,浙江衢州324003

出　　处：《中国水能及电气化》2018年第6期38-44,共7页China Water Power & Electrification

摘　　要：由于陡坡坝段约束区较长,在施工期受力状态均比较复杂,存在较大面积的应力集中分布。为恰当地选择温控措施,缓解基础约束应力,本文选用多坝段联合作用模型,开展尖角部位混凝土浇筑方式研究,得到了不同浇筑层厚、不同间歇期下对陡坡坝段的温度应力的影响,并进行了几种浇筑层厚仓面开裂风险的敏感性分析,为陡坡坝段采取合适温控措施提供依据。Since the constraint zone of steep slope dam section is long,and the stress state during the construction period is complex,there is large area of stress concentration distribution. Temperature control measures are appropriately selected for relieving foundation restraint stress. Multi-dam section joint action model is selected in the paper for studying concrete pouring mode in the sharp corner position,and the influence of different pouring layer thicknesses and different intermission periods on the temperature stress of steep slope dam section is obtained,the sensitivity analysis of storehouse surface cracking risk in several pouring layer thicknesses is analyzed,thereby providing basis for adopting suitable temperature control measures in the steep slope dam section.

关 键 词：陡坡坝段 浇筑层厚 间歇期 温度应力 温控防裂 

分 类 号：TV544[水利工程—水利水电工程]