Research purposes: it is the first time for China to construct tunnel in karst strata with shield method.
研究目的：岩溶地层中采用盾构法施工在国内尚属首次。
TA11 bid for first stage of Nanjing Metro Line 2 is constructed with shield method, including Yixianqiao, Daxinggong and Xinjiekou stations.
南京地铁2号线一期工程TA11标包括逸仙桥站—大行宫站—新街口站，采用盾构法施工。
Both the damage effectives of hypervelocity impact on spacecraft and the thin plate shield method for hypervelocity impact resisting are outlined.
概述了超高速碰撞对空间飞行器的破坏效应，简述了防护超高速碰撞的薄板屏蔽方法。
The main methods of building railway tunnels are mining method, shield method, immersed method and cutting and covering method, most of which are expatiated in aforementioned passages.
修建铁路隧道的主要方法有矿山法、盾构法、沉管法以及明挖法，这大多在前面都有阐述。
The rules to select the shield method and the handle to avoid the accidents during the constructing are developed in this paper.
给出选择盾构工法的准则及避免盾构工法施工事故的措施。
The rules to select the shield method and the handle to avoid the accidents during the constructing are developed in this paper.
给出选择盾构工法的准则及避免盾构工法施工事故的措施。
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