Engineering Design Of Danchengzi Reservoir In Dehui City, Jilin Province

China is relatively short of water resources. The increasingly severe shortage ofwater resources and water pollution makes it necessary to research the problems ofwater resource. To build a reservoir is one of the important means of flood control anddisaster prevention, and collection of water resources development and ultilization. Itis also good to build stable basis national economy. In recent years the potentialnegative effects of some unscientific reservoir projects are unfolded,which drawsgrowing attention. Reservoir plays an important role on people’s lives in watershortage area. Therefore, we can coordinate the relationship between the reservoirconstruction and economic development by building qualified reservoir system.This paper mainly aims at the related aspects studying of Danchengzi reservoir inDehuishi City of Jilin province, and summarizes the necessity and feasibility ofreservoir construction. This paper mainly introduced researches of Danchengzireservoir from the following several aspects: flood design, the construction of mainstructure, environmental analysis, engineering supervision and so on. Firstly, thispaper mainly introduced the flood design of reservoir, analyzed and companed theresults of Jilin model method, Nozaki method and Shuikesuo method and thenchooses the calculation results of Roche method. Secondly, this paper introduced themain structures, which involves the design of earth dam project, flood-discharge andirrigation hole, and culvert pipes of water. Thirdly, this paper analyzed theenvironmental conditions of Danchengzi reservoir and designed the aspects ofenvironmental protection. Finally, construction diversion, quarry selection andexploitation, construction of the principle part of the project and the installing ofauxiliary device are introduced.After the above design, some aspects of Danchengzi reservoir finally determined:designed standard of flood is one time in10years and one time in50years fordesigned flood and flood check; the flood check level is163.74m; the largest capacityis76.0104m3; designed water level is161.51m; designed capacity is25.4104m3; the normal high water level is161.3m; beneficial capacity is21.3104m3; deadwater level is158.5m; dead storage capacity is1.09104m3.According to the result of the flood regulating calculation, it deteimined that theproject scale of Danchengzi reservoir is a small (II) type, and the engineering level isV, the main and minor construction belongs level5. Reservoir engineering structuresare maily composed of homogeneous earth dam, flood-discharge hole and culvertpipes. Engineering design budgetary estimation of the total investment forDanchengzi reservoir is RMB6.49million.