| Application research polyurethane thermal insulation plate in the south canal of Lin-he, inner mongolia |
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| DOI：10.7606/j.issn.1000-7601.2017.02.32 |
| Key Words: polyurethane thermal insulation plate the south canal of Lin-he, Inner Mongolia thermal insulation test application research |
| Author Name | Affiliation | | ZHANG Dong | The School of Architecture and Civil Engineering, Inner Mongolia University of Science & Technology, Baotou, Inner Mongolia 014010, China | | YIN Ying-zi | The School of Architecture and Civil Engineering, Inner Mongolia University of Science & Technology, Baotou, Inner Mongolia 014010, China | | YANG Hong-zhi | Inner Mongolian Autonomous Region Research Institute on Hydraulic Sciences, Hohhot, Inner Mongolia 010020, China |
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| Abstract: |
| In China's seasonal frozen soil region, frostheaving, a tough problem encountered by concrete lining canal, is widely distributed and does great harm to water conveyance project. To explore its damage mechanism and control measures is of great importance. Through the site test on polyurethane thermal insulation plate in the south canal of Lin-he, Inner Mongolia, this paper explores the changing rules and features of the ground temperature, frozen depth, moisture content and frost heave amount with treatments of boards of different thickness, with the anti-freeze expansion plan for the concrete lining channel in this region. The results showed that polyurethane thermal insulation plate could effectively reduce the frost heave damage to rigid lining material of canal, ensure the stability of lining and the safety of canal, which will be of value for the selection of thickness of insulation materials in the rigid lining canal. |
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