强透水性漂卵砾石+中等强度岩层地质条件下沉井干地下沉止水帷幕技术应用

Application of Open Caisson Sinking Underground Water Sealing Curtain Technology Under the Condition of Strong Permeable Sandy Gravel + Medium Rock

沉井一般适用于非岩石土的覆盖层中,不适用于岩层、卵石层及大漂石层等地质条件。在强透水性漂卵石(孤石)及中等强度基岩地质条件下进行沉井干地下沉施工的案例和技术资料在国内外较少,研究适用漂卵砾石层+岩层地质条件下的最佳止水围堰或帷幕的施工方法和技术参数,可为后续相同或相近地质条件的止水施工提供依据和参考。

Cover open caisson generally applicable to rock and soil, is not suitable for rock, gravel and boulder layer geological conditions. In Strong Pervious boulders（Boulder） caisson dry case and technology data sinking construction at home and abroad were less and moderate bedrock geological conditions, the research on the application of drift gravel ＋ rock geological conditions of the best Water Cofferdam or curtain construction method and technical parameters, and provide a basis for reference for water the subsequent construction of the same or similar geological conditions.