某长距离输水隧洞在活动断裂带处理措施

Treatment measures for a long-distance water transmission tunnel in active fault zone

结合KS隧洞特点,总结出KS隧洞在穿越活动断裂带时的处理措施:减小因活动断裂导致的隧洞结构应力,其应对措施为采用全环间隔注浆方式或设置减震层或采用弹性混凝土衬砌;采用扩大洞室与输水管槽组合的方式来应对结构应力过大导致的隧洞震害。

Combined with the characteristics of the KS tunnel, the treatment measures of the KS tunnel crossing the active fault zone are summarized as follows：reducing the stress of the tunnel structure caused by the active fault, the response measures are the whole ring interval grouting or setting the damping layer or using elastic concrete; using combination methods of expanding the chamber and the water pipe groove to cope with the damage of tunnel earthquake caused by structural stress.