摘要
实测了武广线马家冲隧道内空气温度,通过计算喷混凝土的水化热,采用数值方法模拟了喷混凝土水化热引起的喷层及围岩的温度改变,计算表明,喷混凝土水化热对温度场有明显影响的深度为1 m,影响的时间主要在喷层施作后5 d,对喷层变形的影响主要在于轴向应变。
This paper measured the air temperature in Wuhan-Guangzhou line Majiachong tunnel, through the calculation to spraying concrete hydration heat, used the numerical method simulated the spray layer and surrounding temperature changes of caused spraying concrete hydration heat, the calculations showed that the obvious effect depth was 1 m of spraying concrete hydration heat to temperature field, the influence time was 5 days later mainly spray layer, the influence to spray layer deformation mainly lied in axial strain.
出处
《山西建筑》
2015年第7期165-165,共1页
Shanxi Architecture
基金
国家自然科学基金项目(项目编号:50978020
51278044)
关键词
隧道
初期支护
水化热
温度场
tunnel, initial support, hydration heat, temperature field
