苯板保温在混凝土衬砌渠道中的应用及数值模拟  

Application and numerical simulation of polystyrene insulation board in concrete lining canal

作　　者：郭婧[1] 娄宗科[1] 郭启胜 

机构地区：[1]西北农林科技大学水利与建筑工程学院,陕西杨凌712100 [2]内蒙古自治区水利水电勘测设计院,内蒙古呼和浩特010020

出　　处：《人民长江》2013年第5期57-60,共4页Yangtze River

基　　金："十二五"农村领域国家科技计划项目(2011BAD25B04);"十二五"科技支撑计划课题(2012BAD08B01)

摘　　要：目前聚苯乙烯板已作为渠道衬砌保温材料(苯板)被广泛使用,但在施工时还不能科学地确定渠道不同位置的苯板铺设厚度。针对在内蒙古河套地区进行的渠道衬砌防冻胀现场试验,采用有限元分析软件AN-SYS分析了不同厚度的保温板对渠系建筑物的温度场、位移场的影响,得到渠道不同位置处的冻胀量,并将其与实测数据比较,结果较为一致。通过综合分析,对重粉质壤土渠道给出了渠道不同部位合理的保温板铺设厚度,从而为渠道保温板施工提供了技术支持。At present, polystyrene board has been widely used as insulation material in canal lining construction, yet it is hard to scientifi- cally define the thickness of polystyrene board in different positions of a canal. Based on the site test research of anti - frost heaving in Hetao Irrigation Area of Inner Mongolia, we utilize the ANSYS to analyze the influence of various insulation board thicknesses on canal＇s temperature and displacement field, and obtain frost heaving values at different positions of the canal. The calculated value is consistent with measured data. By comprehensive study, the canal is heavy silt loam. We suggest the board thickness at different positions of a canal, which provide technical support for construction of insulation board of lining canal.

关 键 词：聚苯乙烯保温板 温度场 位移场 数值模拟 冻胀 

分 类 号：TV41[水利工程—水工结构工程]