波兰的地铁乘客无疑希望华沙第2条地铁线比第1条建设得快一点。几十年以来,由于受到二战期间华沙起义、纳粹的闪电袭击和苏军的炮轰,以及战后的财政匮乏的影响,地铁工程一再被迫中断。好不容易20世纪80年代地铁工程建设全面展开,又受到政治动乱的影响而被迫推迟。从技术上来说,新线应该建设得快一些,随着4台现代盾构的采用(图1),不像第1条地铁线采用明挖法,2013年可以完成长7km的隧道开挖,2014年做好开通准备。7座车站、6座通风结构和变电所的建设也会加快,因为采用了连续墙作围护结构的基坑施工法。 Subway passengers in Poland certainly hope that the second subway line in Warsaw will be built a little faster than the first one. For decades, the subway project was repeatedly forced to cease due to the Warsaw uprising during the Second World War, the Nazi flash attacks and the shelling of the Soviet Union, as well as the financial deficit in the post-war period. Finally, the construction of the subway project started in the 1980s in full swing, and was forced to postpone the impact of the political turmoil. Technically speaking, the new line should be built faster. With the adoption of 4 modern shields (Figure 1), unlike the first subway line with open cut method, tunnel excavation of 7km in length can be completed in 2013, 2014 ready to start. Construction of seven stations and six ventilation structures and substations will also be accelerated because of the use of a continuous wall as a foundation pit construction method.