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一、工程简介朝阳电厂第二贮灰场坝体为上游面设贴坡堆石渗体的土石混合坝。坝顶长417m,最大坝高为56.5m,最低坝宽为250m。土方工程量为90余万m~3,石方工程显为40余万m~3。排水系统由1450m长的排水管、三个竖井以及消力池组成。其排水管设计为现浇钢筋砼管道,内径为1.4m、壁厚为350mm,截面属方圆型结构。排渗系统由300m长的排渗管以及灰水回收泵房组成,其排渗管亦为现浇钢筋砼管道,
I. Introduction to the Project The dam of the second storage yard of Chaoyang Power Plant is an earth-rock mixed dam with a sloped rockfill infiltrating body on the upper surface. The crest is 417m long, the maximum dam height is 56.5m, and the minimum dam width is 250m. The amount of earthwork is more than 900,000 m3, and that of the stone works is more than 400,000 m3. The drainage system consists of a 1,450m long drainage pipe, three vertical shafts, and a stilling basin. The drainage pipe is designed as a cast-in-place reinforced concrete pipe with an inner diameter of 1.4m and a wall thickness of 350mm. The section is a round-shaped structure. The percolation system is composed of 300m long percolation pipes and grey water recovery pump houses. The percolation pipes are also cast-in-place reinforced concrete pipes.