水下岩石破碎与空气提升法在沉井下沉中的应用  

Application of Underwater Rock Fragmentation and Air-power Silt Collector in Open Caisson Sinking

作　　者：刘昆[1] 曹会清[1] 寇宝庆[1] 张菊平[1] 谢虎辉[1] 

机构地区：[1]中国石油天然气管道局,河北廊坊065000

出　　处：《施工技术》2010年第S2期283-285,共3页Construction Technology

摘　　要：在某沉井下沉施工中,地质条件复杂,遭遇卵石与岩石交界地层,且岩面高差起伏大,造成沉井搁置岩石,沉井停沉。该工程使用自制的水下岩石破碎空气吸泥机下沉装置,进行水下破碎并清除沉井内岩石,促使沉井下沉,顺利完成卵石与岩石交界地层的下沉。In the sinking construction of a open caisson,the geological conditions is sophisticated,encountering interface strataun of cobble layer and rock,and the surface fluctuating,result in the open caisson resting with rock,and the open caisson stop sinking.The project adopts a sel-made underwater rock fragmentation and air-power silt collector,to crush underwater and clear rock.So that,it made the open caisson sinking in the complex geology.

关 键 词：沉井下沉 气动潜孔锤 岩石破碎 空气吸泥 

分 类 号：TU753.64[建筑科学—建筑技术科学]