The original hydraulic dam water cut only applies to one-way under normal circumstances, for the particular case is not suitable for the need of a two-way flaps, such as water in some areas require two-way, or there are some areas sea side to side gear block fresh water, Such conventional hydraulic dam will not meet its request. And our newly developed two-way stop hydraulic collapsible dam, just to satisfy this requirement: 1, two-way hydraulic dam retaining panel is composed of overall steel side panels, the other side is a foldable steel panels, when When filled with water to the desired height, the entire gate to form a triangle, triangle is the most stable of all the graphics, and the mechanics of speaking, is a real vector triangle, the balance of power, so the best stress state, while the triangle is the most simple graphics, in the structure of wasted energy is minimal, so the transfer of energy from the triangle is the best. So, in theory, the height of such a two-way hydraulic retaining dam built 10-20 meters is entirely feasible. This will be a major reform of the global gate history. 2, two-way hydraulic dam retaining within 100 meters of a cross can be used alone, can also be divided into multi-span, the company's fuel tank is used to synchronize the fuel tank, so it is single-span or multi-span, can reach the hydraulic dam Synchronization landing effect. 3, when the two-way hydraulic dam retaining sufficient water to reach the desired height, the lower part of a collapsible panel with the upper half of the panel stuck, play a major supporting role, when the cylinder is essentially no force, just play a supporting role, can reduce the damage to the fuel tank. 4, the overall hydraulic dam panel side is blocked seawater, freshwater folding panel is blocked, so that the force is better, the ability of the impact of the sea. Advantages in maintenance: 1, two-way hydraulic dam retaining cylinder is enclosed between both sides of the gate panel, while quay walls on both sides of the closure, it is surrounded by a closed, although the cylinder piston rod is bare, exposed, Because of its four sides protected, so the fuel tank is not susceptible to damage, usually in about 10 years time to replace a seal. 2, double-sided panel between the pit lane, the pit lane design of pumps, once the water into the pit lane, and reached the design level, the pumps will automatically drained to prevent long-term immersion in the fuel tank water corrosion, so it can extend the life of the cylinder. 3, the hydraulic dam panel uses a new material rust polyurea rust, its life in general can reach 10 years.