某高拱坝施工期封拱蓄水高度研究  

Study on Arch Sealing Height and Impounding Height of A High Arch Dam during Construction Period

作　　者：马强[1] 党侃 MA Qiang;DANG Kan(Yangling Vocational and Technical College, Yangling 712100,China;Shaanxi Province Institute of Water Resources and Electric Power Investigation and Design, Xi'an 710001, China)

机构地区：[1]杨凌职业技术学院,陕西杨凌712100 [2]陕西省水利电力勘测设计研究院,陕西西安710001

出　　处：《水电能源科学》2019年第8期51-53,共3页Water Resources and Power

基　　金：杨凌职业技术学院2018年自然科学研究基金项目（A2018025）

摘　　要：针对某高拱坝施工期提前蓄水问题,采用有限元分析方法,结合ANSYS分析软件建立三维有限元计算模型,通过等效应力法及抗滑稳定相关程序研究拱坝施工期封拱蓄水高度。结果表明,高拱坝在施工期最高蓄水位情况下封拱高度可控制在浇筑高度4/5以上,通过边浇筑边封拱的施工程序,对已浇筑坝体进行部分封拱,能改善静水荷载作用下的坝体应力,进而达到提前蓄水的要求。Aiming at the requirement of early impoundment of a high arch dam during construction period, ANSYS software was used to establish three-dimensional finite element model. And then this paper studied the arch sealing impounding height during construction period using equivalent stress method and anti-sliding stability procedure. The results show that the sealing height of the high arch dam can be controlled at the poured height of 4/5 or more in the case of the highest water level during the construction period. Partial arching of the poured dam by the construction procedure of the side arching can improve the stress of the dam body under hydrostatic load, and thus meets the requirement of storage in advance.

关 键 词：高拱坝 封拱高度 蓄水高度 坝体应力稳定 

分 类 号：TV314[水利工程—水工结构工程] TV642.4