摘要
通过模拟右冲沙闸底孔混凝土的施工过程,模拟施工期的两次典型的降温过程,对景洪电站抗冲耐磨混凝土,作了温度场和应力场仿真计算。仿真计算结果表明:离混凝土表面0.5m深处存在局部高温,当大气降温而混凝土表层缺乏保护时,形成了很大的内外温差,导致了混凝土开裂。
This paper calculates both temperature field and stress field of the erosion- and abrasion-resisting concrete of the Jinghong hydropower project by simulating the concrete construction process of the right flushing sluice bottom outlet and the two typical temperature drop processes during the construction. The results show that local high temperature exists at a depth of 0.5m from the concrete surface, and that when the air temperature drops and the concrete surface is not properly protected there is a significant difference in temperature inside and outside the concrete, which causes cracking of concrete.
出处
《云南水力发电》
2005年第2期43-47,共5页
Yunnan Water Power
