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目前随着我国国民经济的迅猛发展，交通运输事业得到了快速发展，现代化的高等级公路建设项目已在全国范围内遍地开花，单项工程投资额也越来越大。为适应变化了的形势，对专用施工机械也提出了更高的要求。即必须采用新型、高效、低耗的大中型施工机械替代低效率、高能耗的陈
At present, with the rapid development of our national economy, the transportation and transport industry has witnessed rapid development. The construction of high-class modern highways has blossomed throughout the country, and the investment in individual projects has also increased. In order to adapt to the changing situation, special construction machinery has also put forward higher requirements. That is, we must adopt a new, efficient, low-cost large and medium-sized construction machinery to replace the inefficient, high energy consumption of Chen