摘要
以南宁地铁1号线佛火盾构区间1#暗挖联络通道及泵房施工为例,介绍了暗挖隧道及泵房在富水地层施工条件下,通过增加临时仰拱、调整工序、水平真空降水、洞内管井降水等方法有效地防止了突涌灾害,安全、快速地完成了施工任务,为类似工程提供参考。
Taking the construction of No. 1 underground excavated contact channel and the pumping house in the Fohuo shield interval of Nanning Metro Line 1 as an example, this paper introduced some methods under the conditions of underground excavated tunnel and water-rich stratum, such as increasing the temporary inverted arch, adjusting process, horizontal vacuum precipitating, pipe well dewatering in tunnel, which effectively prevented the inrushing disaster, and completed the construction task in a safe and quick way. It could provide a reference for similar engineering.
作者
王昊
Wang Hao(China Railway 19thBureau Group Rail Transit Engineering Co. Ltd. , Beijing 101300, China)
出处
《铁道建筑技术》
2018年第5期70-73,115,共5页
Railway Construction Technology
基金
中铁十九局集团有限公司科技研究开发计划项目(13-4A)
关键词
富水地层
防突涌
临时仰拱
工序改变
水平真空降水
洞内管井降水
water-rich stratum
anti outbursting
temporary inverted arch
process adjustment
horizontal vacuum precipitation
pipe well dewatering in tunnel
