土坝施工时分层上料,每层填土厚度约为()m,上料之后即碾压。A、0.3 B、0.4 C、0.5 D、0.6

作者: rantiku 人气: - 评论: 0
问题 土坝施工时分层上料,每层填土厚度约为()m,上料之后即碾压。
选项 A、0.3 B、0.4 C、0.5 D、0.6
答案 C
解析 新版教材29页:坝体坡脚线放出后,即可在坡脚线范围内填土。土坝施工时是分层上料,每层填土厚度约0.5m,上料后即进行碾压,为了保证坝体的边坡符合设计要求,每层碾压后应及时确定上料边界。各个断面上料桩的标定通常采用轴距杆法或坡度尺法。
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