象山隧道4^#斜井涌水淹井处理技术

Technology for Treatment of Water Gushing in No.4 Inclined Shaft of Xiangshan Tunnel

有轨斜井因其具有纵坡陡、地下水抽排困难等诸多施工不利因素,一旦发生涌水将造成非常严重的后果。以象山隧道4#斜井涌水淹井为例,在介绍淹井过程、分析淹井原因的基础上,较深入地探讨了抽排水方案、掌子面堵水方法及减少已开挖段渗漏水的措施,并对降低有轨斜井涌水风险提出了有益的建议。

If water gushing happens in inclined shafts with railbound transportation system, disastrous results may occur due to the difficult construction conditions such as the steep slopes and the water pumping difficulties. Taking No. 4 inclined shaft of Xiangshan tunnel as an example, the author, on basis of introducing the shaft flooding process and analyzing the causes for the flooding, studies on the water pump scheme, the method of water sealing on the working face and water seepage treatment in the excavated section and puts forward some helpful suggestions on minimizing the water gushing risks in inclined shafts with railbound transportation system.