冬期施工时，涵洞缺口路堤，涵身两侧及涵顶()内，应用()填筑。A.1m；非软土B.1m；冻结土C.1m；未冻结土D.1m；不易冻结土

作者: rantiku 人气: - 评论: 0

问题冬期施工时，涵洞缺口路堤，涵身两侧及涵顶()内，应用()填筑。

选项 A.1m；非软土 B.1m；冻结土 C.1m；未冻结土 D.1m；不易冻结土

答案 C

解析用机械填筑涵洞缺口时，须待涵洞圬工达到容许强度后，涵身两侧应用人工或小型机械对称夯填，高出涵顶至少1m然后再用机械填筑。不得从单侧偏推、偏填，使涵洞承受偏压。冬期施工时，涵洞缺口路堤、涵身两侧及涵顶1m内，应用未冻结土填筑。

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