综合管廊变形缝综合防渗技术的研究及工程应用

Research and application of comprehensive anti-leakage technology for deformation joint of utility tunnel

变形缝是管廊渗水的“重灾区”,地下综合管廊防水的薄弱环节,对整个地下管廊防水效果的影响极大。在综合分析了引起变形缝渗水的主要原因,针对性地开展了抗裂防水混凝土、新型钢边止水带及对应的质量控制方法的研究,并将确定的研究成果应用于实际工程,应用效果表明,该技术体系操作简便,防渗效果显著,具有很好的应用前景。

The deformation joint is the weak link for underground utility tunnel waterproof,and has a great influence on the overall effect of the entire underground utility tunnel waterproof,but the present situation is that deformation joint is the"serious disaster area"of underground utility tunnel.After the causes comprehensive analysis of water leakage in deformation joint,targeted research was carried out about crack resistant and waterproof concrete,new form steel edge water stop and the corresponding quality control methods in this paper,and the research results are applied to practical engineering.The application results show that the system's application prospect is good because of its simple operation and remarkable anti leakage effect.