复合式TBM穿越富水地层时的常见危害及解决办法

以重庆轨道交通6号线二期复合式TBM(全断面隧道钻掘机)试验段工程蔡家段为例,分析复合式TBM在穿越富水地层时常见的掘进参数异常、反复喷渣、管片渗漏水严重及异常上浮、自旋转等问题的危害,认为保证复合式TBM安全穿越富水地段的关键就是控制地下水涌入,并探讨控制地下水涌入的具体办法。

Composite TBM Crossing Water-rich rock formationof common harm and The solution

To China railway tunnel group co., LTD., construction of chongqing rail transit line 6 second phase composite of TBM embankment engineering CAI home section as an example, analyzes the composite TBM (note: the whole section tunnel drilling and digging machine) in across the water formation when common tunneling parameters abnormality, repeatedly sprayed slag, segment seepage is serious harm and the problem of abnormal rise, spin, puts forward secure compound TBM through rich water area is the key to control the influx of the overall train of thought of groundwater, and discusses the concrete methods of how to control the groundwater inflow.