隧道衬砌施工中防止混凝土表面缺陷的几点意见

Some Suggestions on Averting Concrete Surface Defect in Tunnel Lining

结合隧道衬砌施工中容易出现的混凝土表面缺陷，就施工工艺、原材料配比以及施工准备、村砌浇注等方面应注意和采取的相应预防措施提出了建议，以期解决隧道二次村砌混凝土的外观质量缺陷。

In the light of concrete surface defect liable to appear in the tunnel lining, the paper makes the suggestions on appropriate preventing measures which should be assumed in construction technology, raw - processed materials proportioning, construction preparation and lining -placing, so as to solve defects in appearance quality after tunnel concrete lining in second time.