Squeezing Deformation Treatment in High-Stress Sections of Water Conservancy Tunnels in Water-Rich Highland
Water conservancy tunnel construction poses high safety risks, and in the construction process, various adverse geological conditions should be properly predicted, especially in the water-rich southwest region, and effective measures should be taken to ensure normal construction. Taking Central Yunnan Water Diversion Project as an example, this paper introduces the squeezing deformation of high-stress section of water-rich highland encountered during the construction of Bid 3 Tunnel of Dali Ⅱ Section. Combined with the actual project situation, construction methods such as backfilling with pile slag, grouting stoppage wall, radial consolidation grouting, advanced pre-consolidation grouting, and advanced large pipe shed construction are organically combined to effectively solve problems such as the high suddenness, high risk, and slow progress of the deformation of high-stress section in water-rich highland. This paper has achieved good results and can provide reference for similar water conservancy tunnel projects.
万方数据
维普
