高速公路桥梁扩建关键技术研究  

Research on Key Technology of Expressway Bridge Expansion

作　　者：张海龙[1] 代筠杰[1] 张世平[2] 黄文雄[1] 杨宏印[1] 

机构地区：[1]华中科技大学土木工程与力学学院,武汉市430074 [2]中交第二公路勘察设计研究院,武汉市430074

出　　处：《公路》2010年第5期1-6,共6页Highway

摘　　要：近年来,随着我国经济快速发展和交通需求的猛增,公路建设得到了迅猛发展。上世纪修建的桥梁有的交通量已趋于饱和,亟待扩建以增大其交通流量。然而,高速公路扩建在我国是全新的课题,涉及到区域经济发展规划、城镇路网规划和区域高等级公路路网规划的配合问题;航运、水利、铁路的协调问题和对原有道路全面评价、新建与原有的匹配等问题。结合工程实例研究了桥梁改、扩建外业勘察的方法和拼接设计方案等关键技术,对高速公路扩建具有重要的参考价值。With the rapid growth of the economy and the jump of traffic demand, the highway construction has made great progress in recent years. Because the traffic volume of some highway bridges built in last century has already come to saturation, it＇s essential to be renovate and widen these bridges to enlarge their traffic flow. However the expansion of expressway is a brand-new subject in China, which involves, the cooperation problem among the regional economic development program, the town and country traffic network planning, and the regional highway network planning; the coordination problem of air transportation, waterway transportation and railway transportation; the general evaluation of the existing roads, and the match problem of the newly-built and existing roads and so on. The method of external investigation and the conjunction design planning combined with practical work are studied, which has important reference value to the expressway expansion projects.

关 键 词：高速公路 桥梁扩建 勘察方法 拼接 设计方案 

分 类 号：U445.6[建筑科学—桥梁与隧道工程]