深埋长距离TBM 隧道掘进施工风险控制技术

Risk Control Technology for TBM Driving Construction of Deep Buried and Long-distance Tunnel

TBM对不良地质适应性较差,特别是距离长、埋深大、地质条件复杂的工程,可能出现TBM损坏和难以顺利通过的情况,通过分析影响TBM隧道掘进的施工风险,对掘进过程中可能遇到的岩爆、软岩、涌水、突泥、夹层、断层破碎带以及穿越煤层等地质风险这一根源性风险方面,对深埋长距离TBM隧道掘进施工采取相应风险控制技术进行控制,保证了TBM顺利掘进。

TBM has poor geological adaptability.Especially for long distance,large buried depth and complex geological conditions,TBM may be damaged and difficult to pass.This paper analyses construction risks affecting TBM tunnel excavation,such as rock burst,soft rock,water inrush,mud inrush,interlayer,fault fracture zone and geological risks crossing coal seam that may be encountered during excavation.Risk control technology is adopted to control the excavation construction of TBM in deep buried and long distance tunnel,which ensures the smooth excavation of TBM.