圆梁山隧道施工期间增加辅助坑道的设计与施工

The Design and Engineering for Additional Accessorial Tunnels While the Main Tunnel Is under Construction in Yuanliangshan Tunnel

摘要:

在圆梁山隧道修建期间，为解决进口车站大跨段的快速施工以及施工中所遇到的2、3、4和5号溶洞的涌水涌砂难题，创造性地新增设了3条横通道、1条地质探洞、2条迂回导坑和4条泄水洞共10条辅助坑道。主要介绍了施工期间增设的10条辅助坑道的设计与施工。

Abstract:

In order to solve the water and sand inflows during the construction of Yuanliangshan Tunnel, as well as to speed up the construction of big stride of inlet station, 10 accessorial tunnels were creatively built. They are transverse, geological explore, roundabout and draining tunnels. The paper mainly introduces the design and construction of these accessorial ones.