糯扎渡水电站厂房系统6#施工支洞塌方处理

摘要

Collapse had ever occurred during construction of underground powerhouse No.6 adit of Nuozhadu Hy⁃dropower Station. The causes were analyzed. According to the principle of fixing rear and stabilizing front,the ad⁃opted treatment measures include consolidation of slag heap,tubule shed advance support,short advancing foot⁃age,weak blasting,strengthened support,which rendered good effects and ensured construction quality and safety.%　　针对糯扎渡水电站地下引水发电系统6#施工支洞施工过程中的坍塌事故，分析其原因，按“固定后方，稳定前方”的处理原则，采用了固结堆渣体、小管棚超前支护、短进尺、弱爆破、强支护等施工处理措施，取得了良好效果，确保了施工质量及安全。