北京地铁5号线暗挖区间地表沉降分析及控制

Analysis and Suggestion on Control of Ground Surface Settlement Induced by Boring Running Tunnels of Beijing Metro Line 5

通过对北京地铁5号线区间地表沉降值的统计分析,提出了北京地铁区间施工地表沉降应按预警、报警和极限3级控制的思想,并提出了相应的控制标准建议值。

Based on the statistic analysis of data of ground surface settlement induced by construction of boring running tunnels of Beijing Metro Line 5,suggestion can be drawn, that the ground surface settlement can be divided into 3 levels for control:precaution,alarm and limit. The values of corresponding control standards are also presented.