In the canal lining projects in the northern part of China exist some problems concerning lining damage which is caused by frost heave.
在我国北方地区的渠道衬砌工程中，存在着因基土冻胀而造成的衬砌破坏问题。
The seepage controclling effects owing to factors of anti seepage materials, structure style of canal lining, expansion joint filler and construction machinery were studied by experiments.
研究了渠道防渗材料，衬砌结构形式，伸缩缝填料，施工机具对渠道防渗效果的影响。
The authors introduce the technique parameters, construction flow and operation points on construction equipment of mechanized lining concrete on largescale canal.
介绍了大型渠道机械化衬砌用混凝土的技术参数、衬砌机械化施工工艺流程及施工时设备操作使用要点等。
The mechanism of frost heaving of canal lining blocks is studied and the methods of calculating frost heaving and freezing of canal are discussed.
研究了渠道衬砌体冻胀破坏的机理，提出削减和抵抗相结合的抗冻胀思路；
The mechanism of frost heaving of canal lining blocks is studied and the methods of calculating frost heaving and freezing of canal are discussed.
研究了渠道衬砌体冻胀破坏的机理，提出削减和抵抗相结合的抗冻胀思路；
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