寒区渠道衬砌施工与防冻技术研究

Research on Construction and Frost Mitigation Techniques for Canal Lining in Cold Regions

摘要: 寒区渠道衬砌受冻害影响严重，尤其是在低温和冻融循环频繁的地区。冻胀是造成衬砌破坏的主要原因之一，土壤中的水分在冻结过程中膨胀，产生的内力使混凝土和其他材料发生裂缝和位移，影响渠道的正常功能。为了应对这一问题，本文对寒区渠道衬砌的防冻胀技术进行了总结与分析，提出了改良基土处理、优化衬砌结构设计和采用高性能材料等防冻措施，并探讨了冻胀监测技术在防治冻害中的应用。研究表明，通过新型材料和智能监测技术的结合，可以显著提高寒区渠道的防冻胀能力，延长其使用寿命。

Abstract: Canal lining in cold regions suffers severe frost damage, particularly under low-temperature conditions and frequent freeze-thaw cycles. Frost heave—a primary cause of lining failure—occurs when pore water in soil expands during freezing, generating internal forces that induce cracks and displacement in concrete and other materials, ultimately compromising canal functionality. To address this challenge, this study synthesizes and analyzes frost heave mitigation techniques, proposing countermeasures including improved subsoil treatment, optimized lining structural design, and high-performance materials. Additionally, the application of frost heave monitoring technologies for damage prevention is explored. Research demonstrates that integrating novel materials with intelligent monitoring technologies significantly enhances frost heave resistance and extends the service life of canals in cold regions.