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复线即增建第二线工程,是我国目前改造既有线,增加列车密度,提高运输能力所采取的主要措施之一。增建第二线工程的特点是施工和运营关系密切,过渡工程较多。为了提高投资效益,满足运能的增长,施工期间要逐步提高运输能力。复线施工对运营线的依赖性很大,因大量的材料要靠火车运输。这些特点对施工组织设计提出了较高的要求。由于部基建系统的设计、施工队伍长期
It is one of the main measures taken by our country to transform the existing lines, increase the density of trains and improve the transport capacity. The construction of the second line project is characterized by close construction and operation and more transitional projects. In order to improve investment returns and meet the growth of transport capacity, it is necessary to gradually increase transport capacity during construction. The construction of double-tracked lines is highly dependent on the operation line because of the large amount of material to be transported by train. These characteristics put forward higher requirements on the construction design. As the Department of infrastructure design, construction team long-term