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doi :10.3969/j.issn.1673-6478.2018.02.022公路中央分隔带开口研究双晓娟（山西省交通科学研究院，山西太原030006）摘要：高速公路及一级公路整体式路基一般都设有中央分隔带，以保证双向行驶的车辆不互相进入反方向行车道，但在有需要的时候，车辆需要通过中央分隔带开口到反向车道行驶。本文对中央分隔带开口设置原则、开口位置、开口长度及开口护栏等进行了研究，为设计人员提
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absolute datum 绝对基面abutment 桥台abutment pier 制动墩acceleration lane 加速车道accidental load 偶然荷载accommodation lane 专用车道acoustic barrier 隔音墙acting circles of blasting 爆破作用圈additional stake 加桩adjacent curve in
