既有电气化铁路新增明(棚)洞、隧道接长施工关键技术及经济分析

Key Technology and Economic Analysis of Jointing in Length Construction for New Open Cut Tunnel(Open Shed) and New Tunnel in Existing Electrified Railway Engineering

随着电气化铁路棚洞工程的发展,顶板施工以及隧道接长施工已相当成熟,在我国电气化铁路棚洞工程中得到广泛应用。为了在保障施工质量的前提下,降低施工成本,论文针对既有电气化铁路新增明(棚)洞、隧道接长施工关键技术及经济分析研究。

With the development of the electrified railway shed and tunnel project, the roof construction and tunnel lengthening construction have been quite mature, and have been widely used in the electric railway shed and tunnel project in China. In order to reduce the construction cost under the premise of ensuring the quality of construction, this paper focuses on key technology and economic analysis ofjointing in length construction for new open cut tunnel （open shed） and new tunnel in existing electrified railway engineering.