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浅谈正安县石峰水库左岸灌浆平硐兼交通洞不良地质段处理

Discuss on the Treatment of Bad Land Sectors in the Grouting Footrill Access Tunnel in Shifeng Reservoir of Zheng'an County
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摘要 隧洞不良地质段包括断层、低强度的软弱夹层、地质构造发育的结构松散地层、非岩性粘土、高地应力地层和富水地层等。穿过断层(断层破碎带或其它软弱夹层)地段时,会增加工程施工的难度,其施工难度取决于断层的性质,规模、地层水文条件、断层破碎带及其填充物和隧洞轴线和断层构造线位置关系等,在施工中先对不良地质段实行临时支护或结合永久支护方案进行处理,对隧洞施工在安全、质量和进度上均有直接影响。 The tunnel adverse geological faults include faultage, low strength, geological formation and development of loose, non-rock clay, high stress formation and water-rich strata. Crossing the fault (fault zone, or other soft interlayer), it will increase the difficulty of construction, its construction is very difficult depending on the nature of the fault, size, formation hydrological conditions, fault and fracture zone and the filling tunnel axis and fault structures line position relationship have a direct impact on the construction of the first segment of the poor geological conditions of the temporary support or permanent support programs in combination treatment, tunnel safety, quality, and the progress.
作者 吴治国
出处 《价值工程》 2010年第15期11-12,共2页 Value Engineering
关键词 隧洞开挖 临时支护 不良地质处理 灌浆平硐兼交通洞 tunnel excavation temporary support adverse geological treatment the grouting footrill access tunnel
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