1、前言我院设计的沪嘉高等级公路路面为沥青混凝土面层。为取得高等级道路水泥混凝土路面经验,经主管部门同意,在沪嘉高等公路嘉定方向入城路段约2千米,路面设计已变更为水泥混凝土路面。沪青公路改建工程,自徐泾跑道到青浦环城乡,长约15千米,由上海市公路管理处委托我院设计,该路段按二级公路标 1, Foreword Shanghai Jiajia high-grade highway pavement design for the asphalt concrete surface layer. In order to obtain the experience of high-grade road cement concrete pavement, with the consent of the competent department, about 2 km into the urban section of Ji-Jia Expressway Jiading, the pavement design has been changed to cement concrete pavement. Shanghai-Qing Highway reconstruction project, from Xu Jing runway to Qingpu Central and Rural, about 15 km, commissioned by the Shanghai Highway Management Design Institute, the road section by two road signs