碾压混凝土重力坝施工分层厚度分析

Study on layered thickness of RCC gravity dam construction

以有限元软件ANSYS为基础建立模型,对分层厚度分别为0.2,0.3,0.35,0.4m时重力坝的施工过程进行模拟,分别从温度分布、应力变化进行对比分析,从基础温差、内外温差、上下层温差、坝体应力和工期等方面综合考虑,推荐使用分层厚度为0.3m。

Based on the finite element software ANSYS,the mo del is constructed to simulate the construction process of gravity dams with layer thicknesses of 0.2,0.3,0.35,0.4 meter respectively. The temperature distribution and stress changes are compared and analyzed, and the basic temperature difference is obtained. The internal and external temperature differ ence,the temperature difference between the upper and lower layers,the stress of the dam body and the construction period are considered comprehensively. It is recommended to use a layer thickness of 0.3 m.