Design Of Small Farmland Water Conservancy Facilities Transformation In Guazhou County

Based on the investigation of the existing construction projects of small-scale farmland water conservancy projects in Guazhou townships,this paper,based on the needs of local planting structure and farmland irrigation water,plans and designs the channels and their affiliated buildings,and puts forward the construction projects of farmland water conservancy projects Bidding and construction organization design,the main results are:(1)The townships in this article need to build the main channels and the main channel and the canal building: Buchenji Township,Nine Village,a group of twelve agricultural canal,six agricultural canal,eighteen canal for maintenance,Farmhouse 1300 m,a total of 31 canal buildings;Cangyang town west trunk canal 1 +450 ~ 2 +050 section,the new ditch channel to carry out maintenance and transformation,a total of maintenance channels 1800 m,a total of 10 canal buildings;Ditch four groups of agricultural canal maintenance transformation,a total of maintenance channels 1500 m,a total of 27 canal buildings;West Lake Township in the village of bucket drainage maintenance,a total of maintenance channels 1000 m,a total of 15 canal buildings.(2)proposed the construction of the township are 6cm thick C20 prefabricated block lining,every 6m set up a asphalt mortar expansion joints,and laying a thickness of 30 cm sand and gravel cushion,channel cross-section of the specific size and form of Longji rural farmers Channel: channel section for the U-shaped channel,the mouth width of 76.5cm,drainage depth of 60 cm,low arc radius of 30cm;Hedong Township canal channel channel type for the trapezoidal canal,mouth width 204.0cm,drainage depth 65.6cm,bottom width 40cm;Shuangtao Township canal channel section type for the trapezoidal canal,the width of 164.6cm,drainage depth of 54.8cm,the end of the width of 55cm;West Lake Township canal channel section for the trapezoidal canal,mouth width 204.0cm,drainage depth 65.6cm,bottom Width of40cm;Cangyang town of the West canal channel channel type for the trapezoidal canal,the mouth width of 346.0cm,depth of 98.4cm,the bottom width of 100cm;new ditch village branch channel channel type for the trapezoidal canal,the mouth width 164.6cm,drainage depth 54.8cm,bottom width 55 cm.(3)This design in the new bucket on the allocation of a single opening control sub-sluice,farm ditch supporting the gate.Supporting the control of the bucket through the use of open-air flat steel gates,agricultural canal gate are used door frame steel gate.The gate is made of steel gate and has a thickness of 3mm.(4)for the construction organization design As the construction of irrigation by the impact of the construction unit according to the channel irrigation time,a reasonable development of construction plans.The construction period of the project is from the beginning of May to the end of December,the project preparation period is one month,complete the temporary camp,shed construction,construction road renovation and part of the water supply and hydropower project;the main project construction period of 8 months,During the intermittent period,the sand and gravel cushion and the concrete prefabricated U-shaped trench lining of the canal irrigation project are arranged for one month to complete the completion of the project.Project preparation period: the project preparation period of one month,beginning in May 2016,the end of May end,mainly to complete the temporary camp,shed construction,construction road renovation and part of the water supply and construction works,with the beginning of June the main project start conditions.(5)The post-approval management of the project shall implement the project legal person responsibility system and be responsible for the construction management of the whole project.To take the tender by the project legal person in the form of open tender.Approved by the higher authorities,by the project legal person to choose the appropriate qualifications of the tender agency to host the tender work,preferred selection of successful bidder.After the completion of the project,by the Guazhou County township government on the daily management of the project management.(6)The total investment of the project is 2 million yuan.Of which: construction of 155.64 million yuan,metal structure equipment and installation of 28,700 yuan,the construction of temporary works of 10.06 million yuan,the independent cost of 21.91 million yuan,the basic reserve costs of 9.52 million yuan.