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顶管工程一般采用人工掘进和机械顶进两种施工方案,而对于长距离、土质疏松、场地狭窄的地段,顶管工程需采用泥水平衡顶管施工方案。河南省南水北调受水区安阳供水配套工程35号线滑县城区段2909m长顶管,受该工程中的特殊地质地层和周围施工环境限制,采用泥水平衡顶管施工方案,设置1 5座顶管井,顶管井设计为钢筋混凝土沉井。文章主要论述分析的是泥水平衡顶管工程中沉井施工方案及相关措施。
Pipe jacking works generally use two kinds of construction schemes: manual boring and mechanical jacking. For long-distance, loose soil and narrow space, the pipe jacking project needs the slurry-balanced pipe jacking construction scheme. Under the special geological strata and surrounding construction environment in this Project, the project of water supply of Anyang Water Supply Project in the receiving area of Anyang Water Supply Area in Henan Province on the 35th line of Huayang Section 35 is long pipe jacking. With the construction plan of mud-water balance pipe jacking, 15 pipe jacking wells Pipe jacking is designed as reinforced concrete caisson. The article mainly analyzes and analyzes the caisson construction plan and related measures in the project of mud-water balance pipe jacking.