Research on the Prediction of InrushW ater Volume ofYanmenguan Tunnel and the ProtectiveM easures
LIU Jun-xin1, YIN Hong-bo2, LIU Yu-tian1
1.SouthwestUniversity ofScience and Technology, Mianyang, Sichuan 610031, China; 2.The Third Railway Survey and Design InstituteGroup Corporation, Tianjin 300251, China
Abstract：Research purposes: As a key projectof straightening railway double tracks, the developments of the surface water and the groundwater in the construction zone of Yanmenguan Tunnel cause much difficulties to the tunnel construction. In order to ensure the construction safety, the surface water and the groundwater in the construction zone should be evaluated and the inrushwatervolume during construction should be predicted.
Research conclusions:The hydrogeologicaland engineering geological survey and the comprehensive analysesof the data obtained from geophysicalprospecting and drilling indicate that in the tunnel area, the developmentof regional structure and the rich -water conductivity of the fracture zone of the fault lead to the groundwaterdevelopmen.t The groundwater mainly contains the faultzonewater and the bedrock fissurewater. Generally, the faultzonewater is heavy richwater,while the bedrock fissurewater isweak -medium richwater. The concentrated inrushwater segments of the tunnel are mainly in the zone of developed faults. As the inrush water of fault is large and the inrush may happen, the water blocking should be as the main protective measures and the geological forecast in advance should be well conducted during the construction period.
刘俊新,尹洪波,刘育田. 雁门关隧道涌水量预测与防护措施研究[J]. 铁道工程学报, 2009, 26(11): 35-39.
LIU Jun-xin, YIN Hong-bo, LIU Yu-tian. Research on the Prediction of InrushW ater Volume ofYanmenguan Tunnel and the ProtectiveM easures. 铁道工程学报, 2009, 26(11): 35-39.
2009, Vol. 26 
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