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渠道防渗衬砌工程的冻害及防治措施简介
引用本文:秦治汾 颉瑞温. 渠道防渗衬砌工程的冻害及防治措施简介[J]. 山西水利科技, 2000, 0(3): 32-35
作者姓名:秦治汾 颉瑞温
作者单位:山西省汾河水利管理局一坝分局
摘    要:本文介绍了渠道衬砌工程常见的冻害现象并介绍了常规的防治措施。

关 键 词:渠道防渗 衬砌工程 冻害 防治措施 灌区

Introduction on Frost-injury of Seepage-preventing Canal Lining and Its Prtevention Measures
Qing Zhifen Xie Ruiwen Li Haiping Liang Guoying. Introduction on Frost-injury of Seepage-preventing Canal Lining and Its Prtevention Measures[J]. Shanxi Hydrotechnics, 2000, 0(3): 32-35
Authors:Qing Zhifen Xie Ruiwen Li Haiping Liang Guoying
Affiliation:Qing Zhifen Xie Ruiwen Li Haiping Liang Guoying
Abstract:Four parts are comprised in this paper,[1] the causes on failure of the seepage-preventing canal lining by frost heave, the analysis shows that the frost-injury arises both from the characteristics of freezing, moisture, deformation and soil of the canal bed and from the artificial factor.[2] the various destructive characters of the frost-injury caused by negative temperature, on this point, three kinds are divided: the alternate freezing and thawing of the lining works,the freezing of water flowing in the canal at the time when the temperature is negative, and the other water recharged.[3] the failure form of the frost heave, which is summarized as follows: dilatation, crack, heaving, sliding avalanche and the lifting of the lining works as a whole.[4] the prevention measures are divided into two sorts, one is used for avoiding the frost heave, including avoiding to build canal in the natural condition forming frost heave, using buried pipe or culvert which is buried under the freezing depth, making the canal not contact with soil,the other one is used for weakening frost heave, including the seepage prevention,drainage, compaction of the soil, heat insulation, chemical treatment, replacing frost heave soil by non-frost heave materials and optimize the structure of the canal cross section and corresponding lining.
Keywords:Failure by Frost Heave Lining Works Canal Seepage prevention Cause Prevention Measure  
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