Contact Platform Support
Help CenterShandong Heze Hinge Dam Steel Flap Gate, Automatic Hydraulic Flap Gate for Water Conservancy
Related Products
-
Manufacturer of Concrete Flap Gates, Hydraulically and Hydro - Powered Dual - Drive Flap GatesUS$ 0.71 - 0.74MOQ: 1 Set -
Electric Hydraulic Gates and Hydraulically Self-controlled Flap Gates Can be Customized According to RequirementsUS$ 0.71 - 0.74MOQ: 1 Set
-
Shanwei Manual Cast Iron Gate With Copper Inlay for River and Sewage PipesUS$ 1323.08 - 1353.85MOQ: 1 Set
-
Changping Open Stem Cast Iron Gate With Copper Inlay for Sewage WellsUS$ 1323.08 - 1353.85MOQ: 1 Set
-
Meizhou Steel Dam Gate, Hydraulic Flap Dam for Water Conservancy Projects, Hydraulic Dam for Landscape Rivers, Branded ProductUS$ 1230.77 - 1353.85MOQ: 1 Unit
Technical status of the upper-flipping flap gate:
In the past, due to the small usage of hydraulic self-controlled flap gates, a market scale was not formed. Therefore, there was no real industry. After years of development, especially the extensive use of small and medium-sized power stations in the past decade, great progress has been made in the technology of hydraulic self-controlled flap gates, and the research on it has become more detailed and in-depth.
1. The accuracy of the gate startup water level has been significantly improved. It can start when the water level is 0 - 15 cm above the gate crest and can be appropriately adjusted according to user requirements. An accurate and relatively low startup water level can reduce the inundation area upstream.
2. The operation of the gate is more stable. Compared with the original multi-hinged rod slider type and slider support structure, the roller, guide plate, and connecting rod structure currently used makes the gate less likely to shake after startup, and the gate can maintain a consistent operating state.
3. After years of technical improvement, the counterweight of the gate is more reasonable. It will not produce slapping in the fully open state due to excessive bottom counterweight, nor will the gate fail to close normally after being fully opened due to too small bottom counterweight.
Introduction to the steps of cofferdam filling during the construction of the flap gate:
The flap dam is a very common mechanical equipment in water conservancy and hydropower. Many times, some companies and groups will choose to use the flap dam to increase the safety of water conservancy and hydropower. There are many things to pay attention to during the construction and installation of the flap dam. The whole project is very important. This time, let's talk about the steps of cofferdam filling in the construction of the flap dam.
(1) The advancing method is used for filling. Two 1m3 excavators are used to take soil, and two 120 bulldozers are used for leveling and rolling. According to the construction conditions at the construction site and the requirements of the construction period arrangement, the one-side advancing method or the two-side simultaneous advancing method is used for filling.
(2) After the cofferdam is filled out of the water surface, soil is filled in layers with a thickness controlled at 30 cm. The particle size of the soil material should not be greater than 5 cm. The upper layer of soil material can be paved only after the compaction test of each layer is passed.
(3) The earthwork excavated from the Dadi at Taipingyue Gate is used as the soil material for cofferdam filling. The water content of the soil material is controlled within the appropriate range to ensure that the soil source is not soaked by rainwater or groundwater.
(4) The earthwork is compacted by bulldozers, and the compaction degree of the compacted earthwork reaches above 0.92.
(5) After filling to the cofferdam crest, it is hardened with clay-bound gravel or building slag from the platform.
Cofferdam removal
The cofferdam will be removed before the project is completed. It is planned to remove all the cofferdams within 5 days. The above-water part of the removed earthwork is used for backfilling in the backfill area, and the underwater part is discarded at the spoil site or the location designated by the owner.
During the construction of the flap dam, great attention is paid to cofferdam filling, and there are many things to pay attention to during implementation. There are also many ways to design water conservancy and hydropower projects. For example, flap gates, flap doors, flap dams, hydraulic lifting dams, etc. Each of them is a very good building material.
Send Inquiry to This Supplier
You May Also Like
-
Principle and Structure of Cast Iron Gate. the Working Principle of Cast Iron GateUS$ 1323.08 - 1353.85MOQ: 1 Set
-
Integrated Machine and Gate Steel Gate - Manufacturer of Steel Gates for the Forebay of Yueyang Hydropower StationUS$ 1323.08 - 1353.85MOQ: 1 Set
-
Steel Gates for Kunming Hydropower Station, Steel Structure Gates for Kunming Hydropower StationUS$ 1323.08 - 1353.85MOQ: 1 Set
-
Taizhou Manufacturer Sales of Bottom Shaft Hydraulic Steel Dam Gates and Cast Iron Square GatesUS$ 1230.77 - 1353.85MOQ: 1 Unit
-
Hydraulic Steel Dam, Discounted Price for River - Blocking Steel Dam GatesUS$ 1230.77 - 1353.85MOQ: 1 Unit
-
Technical Parameters of Hydraulic Flap Gates and Steel Flap GatesUS$ 1230.77 - 1353.85MOQ: 1 Unit
-
Taizhou Bottom Shaft Hydraulic Steel Dam GateUS$ 1230.77 - 1353.85MOQ: 1 Unit
-
Stainless Steel Gates, Brands of Steel Gates for Hydropower StationsUS$ 1323.08 - 1353.85MOQ: 1 Set
-
Quotation for Dn800 Cast Iron Flap Gate of Glacier Water Conservancy Machinery. Dealer of Side-opening Flap GatesUS$ 184.62 - 246.15MOQ: 1 Piece
-
Manufacturer of 1200mm Diameter Cast Iron Flap Gates. Customized Double-leaf Flap Gates Available.US$ 184.62 - 246.15MOQ: 1 Piece
