FTA法在浅埋小净距隧道下穿铁路中的应用

FTA applied in the shallow tunnels with a small clear distance beneath railways

以石家庄地铁1号线一期工程张西区间为依托,针对其浅埋、小净距、下穿铁路风险高等工程特点,利用故障树分析法,梳理铁路下沉超限的风险诱因,找出了风险发生的途径,并提出了风险预控措施,实践证明,风险分析合理,控制措施有效,可为类似工程提供参考。

Based on the project of Zhang-Xi interval in metro No. 1 in Shijiazhuang,for its buried depth,small clear distance and other engineer-ing features,using the FTA method,combining the railway subsidence overrun risk factors,finding out the way of risk,putting forward risk pre-control measures. The practice proves that the risk analysis is reasonable and the control measures are effective,which can provide the reference for similar projects.