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公路长隧道二次衬砌施工中经常会出现施工冷缝、局部气泡、麻面、混凝土接缝错台等质量问题,二次衬砌施工进度滞后也是常见的现象。本文结合工程实践,分析出现质量问题的原因,提出控制施工质量及进度措施。
Secondary lining construction of long tunnel of highway often causes quality problems such as construction cold seam, local bubbles, pockmarks and concrete seams. The lag of secondary lining construction is also a common phenomenon. Based on the engineering practice, this paper analyzes the causes of the quality problems and puts forward the measures to control the construction quality and progress.