为研究长大隧道大型机械化施工建造费用确定的方法和途径，通过对隧道施工机械化配套技术研究及实际施工情况的调查与测定，对机械化施工进行工程经济分析研究，核算出隧道在不同围岩条件下的施工机械化配置，在合理的施工组织条件下的经济指标及所需要的工程费用。通过与普通钻爆法对比，长大隧道机械化施工配套能有效地加快施工进度，缩短工期，改善作业环境，保证施工质量，降低安全风险，虽然直接建造费用有小幅度增加，但综合效益显著。

Economic analysis is made on the mechanized construction of long railway tunnels. The mechanical matching for the construction of long railway tunnels in different rock mass is summarized, and the economic indexes and costs of the construction of long railway tunnels are worked out. Compared with conventional mechanical matching, the mechanized construction can improve the construction progress, shorten the construction period, improve the construction environment, guarantee the construction quality and reduce the construction risks. The mechanized construction has great comprehensive significance, although its direct cost is slightly higher. 