我国高速公路建设取得了辉煌成就,据统计,到2008年年底,我国高速公路总里程已达到6.03万km。从交通运输部的规划来看,高速公路基本建设任务还很重,高速公路养护、改扩建市场是一个重要的潜在市场。改扩建工程的技术升级和施工能力提升,是市场的必然要求。中交第二公路工程局有 China’s highway construction has made brilliant achievements. According to statistics, by the end of 2008, the total mileage of our country’s expressways has reached 60,300 km. From the Ministry of Transportation’s planning point of view, the basic task of highway construction is still heavy, highway maintenance, renovation and expansion of the market is an important potential market. The technological upgrading and construction capacity improvement of the expansion and expansion project is an inevitable requirement of the market. CCCC Highway Engineering Bureau there