随岳高速公路圆管涵开裂原因与套管加固技术

摘要

从设计、施工、养护和涵管生产四个方面分析了圆管涵开裂原因，并结合随岳高速公路K114＋738套管加固工程案例，总结了实用的圆管涵套管加固施工工艺和质量控制要点，实践表明，圆管涵套管加固技术可以较好地处治管节开裂问题，提高混凝土圆管涵的抗病害能力，保障高速公路的安全畅通。%The paper analyses circular culvert cracking causes from four aspects of design,construction,maintenance and culvert,summarizes circular culvert sleeve tube reinforcing construction technology and quality control points by combining with Sui-Yue highway K114+738 sleeve tube reinforcement engineering case. Practice proves that:circular culvert sleeve tube reinforcing technology can better deal with pipe joint crack-ing problems,improve circular concrete culvert disease-resisting capability,and guarantee highway driving smooth as well.