摘要
为解决在隧道勘察阶段难以准确确定断层破碎带位置的问题,采用地质调查、物探、超前钻探等多种手段,对浦梅铁路控制性高风险工程莲花山隧道F14大型断层破碎带进行勘测,研究表明:(1)超前地质综合预报能够准确查明断层破碎带的位置,在F14断层与原地勘资料偏差100 m情况下,采用超前预报对其进行了准确定位;(2)超前地质预报中,可以依靠经验确认断层破碎带等不良地质解译标志,但由于个人认知的局限性和地质条件的复杂性,还需要地质工作者依靠经验但不唯经验去判断。
In order to solve the problem that it is difficult to predict accurately the location of the fault fracture zone during the tunnel surveying stage,geological surveying,geophysical prospecting,advance exploration drilling and other methods are adopted to study the F14 fault fracture zone of the Lianhuashan Tunnel,a highrisk project in Pumei Railway.It shows that:(1)the comprehensive geology prediction can accurately predict the location of the fault fracture zone.The F14 fault was accurately forecasted in the case of a deviation of 100 m from original geological survey data;(2)Marks could be used to predict unfavorable geological condition such as the fault fracture zone by the advanced geological forecast based on experience.However,due to the limit of personal cognition and the complexity of geological conditions,it is still necessary for geologists to rely on experience but not only experience.
作者
张龙
Zhang Long(China Railway Design Corporation,Tianjin 300251,China)
出处
《铁道勘察》
2020年第4期54-58,79,共6页
Railway Investigation and Surveying
关键词
铁路隧道
断层破碎带
综合超前地质预报
钻探
物探
Railway tunnel
Fault fracture zone
Comprehensive geology prediction
Drilling
Geophysical prospecting
