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.
出处
《施工技术》
CAS
北大核心
2010年第S2期283-285,共3页
Construction Technology
关键词
沉井下沉
气动潜孔锤
岩石破碎
空气吸泥
open caisson sinking
down-to-hole(DTH) hammer
rock fragmentation
air-power silt collector
