摘要
研究目的:突水突泥是隧道施工过程中常遇的现象,给工程施工造成的危害性极大。马鹿箐隧道是宜万铁路八座一级风险隧道之一,地下暗河、岩溶、高压、富水、溶腔等不良地质广布,施工中多次遭遇特大型突泥突水。本文通过对该隧道突水突泥现象研究,分析各种岩溶隧道突水突泥影响因素,探讨隧道突涌水整治问题。研究结论:通过分析得出:(1)岩溶隧道突涌水与其穿越地层的岩溶空腔(溶腔、溶隙等)的静水储量大小密切相关,与溶腔内的水压高低有关,与地表及地下水系的连通性有关;(2)隧道穿越高压、富水、岩溶地层时,应重视超前地质预测预报工作,特别推荐超前水平钻孔和周边钻孔相结合的方法,探明开挖前方的工程地质、水文地质特征、溶腔的边界情况,提前采取可靠的工程措施,以达到"保证施工安全、确保结构稳定、保障安全运营"的目的。
Research purposes： The water bursting and mud bursting are the common appearances encountered in tunnel construction and they can produce the big harm to the construction. The Maluqing Tunnel is one of eight tunnels with Grade 1 Risk. There are lots of the unfavorable geological conditions, such as the underground hidden river, karst, high pressure, rich water and karst cavity. The large water bursting and mud bursting happened many times in the construction. Based on the research on the water bursting and mud bursting happened to this tunnel, this paper analyzes the various influence factors on the water bursting and mud bursting and discusses the control of the water bursting and mud bursting of the tunnel. Research conclusions： From the analysis it is concluded ： （ 1 ） The water bursting of the karst tunnel relates closely to the storage volume and water pressure of the static water in the karst cavity and to the connectivity of the underground water system. （2） When the tunnel pass the high - pressure and rich - water karst stratum, the advanced geological forecast work should be well done. It is recommended to use the advanced horizontal drilling method along with the peripheral drilling method for clearly exploring the engineering geology, the features of hydrogeology and the boundary condition of the karst cavity, and the reliable engineering measures should be taken in advance to ensure the construction safety, the structure stability and the operation safety.
出处
《铁道工程学报》
EI
北大核心
2013年第1期45-48,53,共5页
Journal of Railway Engineering Society
关键词
隧道
突水突泥
影响因素
治理
对策
tunnel
water bursting and mud bursting
influence factor
treatment
countermeasure
