论文部分内容阅读
北京地铁的建设是随着城市规模扩大,向远郊区延伸而加快了速度,因此如何提高建设速度和建设时限,以及如何不影响地面交通的正常运行就成了难题。于是,地铁的造价也日益昂贵。一线地铁在1965 年开工时,施工的方式是大揭盖的开膛式挖掘,影响了地面的交通和地面的设施不说,对环境也造成极大的影响,只是当时技术条件所限,和人们对环境并没有什以要求。今天随着技术条件的提高和对城市总体
The construction of the Beijing subway accelerates with the expansion of urban scale and the extension to the outskirts of the city. Therefore, how to speed up the construction and time limit of construction and how to not affect the normal operation of the ground transportation becomes a challenge. As a result, the cost of the subway is also becoming more expensive. When the first-line subway started construction in 1965, the construction was carried out by means of wide-open open-cut excavation, which affected the traffic and surface facilities on the ground and greatly affected the environment, but only when the technical conditions were limited and people There is no requirement for the environment. Today, with the improvement of technical conditions and the overall city