以茅坪山隧道为例,详细介绍了进口防排水施工方法、工艺,该施工工艺对保证隧道质量起到了积极的作用.%To take Maoping mountain tunnel as an example,the paper introduces the import waterproof and drainage construction method,process,the construction process has played a positive role in ensuring the quality of the tunnel.
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