小浪底引黄工程2#主洞段施工地质预报及塌方处理措施

Geological Forecast and Collapse Treatment Measures of 2# Main Tunnel Construction of Xiaolangdi Yellow River Diversion Project

对小浪底引黄工程隧洞水文地质及地质预报中的图纸预测、钻孔预测、专家预测进行了较为详细的介绍,通过分析此隧洞地质情况,制定了砂浆锚杆、钢筋挂网、钢拱架、喷混凝土、超前小导管及注浆等较为完善的塌方处理措施。实践证明,此方法确实达到了预期目的,值得借鉴与学习。

This paper detailed introduced the blueprint forecast, drilling forecast and experts forecast in hydrogeology and geological forecast of tunnel construction in Xiaolangdi Yellow River Diversion Project. By analyzing the geological condition of this tunnel, comparatively perfect collapse treatment measures were formulated such as mortar anchor, steel bar net shotcrete, steel arch centring and advanced small pipe grouting. Practice has proved that this method indeed achieve the intended purpose, and is worthy of learning and using for reference.