保温型刚性护面渠道设计

Design of the Rigid Lining Canal with Heat Preservation

在刚性面层下设置一道性能良好的保温层来防止基土冻结,可以从根本上解决冻胀破坏的问题。这种带保温层的刚性护面渠道称为保温型刚性护面渠道,根据热工原理,提出了保温型刚性护面渠道横断面设计在构造方面的要求,进一步推导出计算保温层厚度的有关公式,并给出算例,还指出了需要进一步研究和探讨的问题。

The frost heaving damage can be thoroughly solved by laying a heat preservation layer in good condition under the rigid lining to prevent the frost heaving of the base soil. This is called the rigid lining canal with the heat preservation. The demands in structure design of the cross section of the rigid lining canal with the heat preservation have been developed according to the heat principle. The formula for calculating the heat preservation layer thickness and a calculation example have been given. Finally, two problems which are need to be further studied and discussed are also presented in this paper.