CN106560560A - Rolling-mat closure hydropower station building method - Google Patents

Abstract

The method of "rolling sweep interception" hydropower station construction is to use caisson technology to build a dam body in the flowing water and intercept the flowing water through "rolling sweep interception", which saves diversion, closure, cofferdam, etc., can quickly build a hydropower station, shorten the construction period and reduce investment The reduction in excavation is very environmentally friendly. The present invention is used in the construction of tubular hydropower stations, which can generate as much electricity as there is water. Hydropower stations without reservoirs, such as the Gezhouba Hydropower Station in the middle reaches of the Yangtze River, have an installed capacity of 2.71 million kilowatts, reduce land acquisition, and do not occupy farmland and villages. The hydropower station can be quickly built to generate electricity quickly. It is the advantage of the present invention. The present invention can be applied in the mouth of river embankment, the usefulness of plugging mouth. The invention can build a hydropower station in any river section, and can also build a high-dam hydropower station. The prospect is very good. It can quickly provide hydropower and electricity for the infrastructure construction of the "Belt and Road", and it will greatly help the rapid development of various countries. China Hydropower Group has its own Inventions are sure to win the competition over foreign hydropower groups.

Description

The Method of Sweeping and Closure of Hydropower Station Building

The invention relates to a method for "sweeping and intercepting" a hydropower station building.

One of the current methods of building a hydropower station is to first divert, intercept, and cofferdam, and then drain the water in the middle of the cofferdam to expose the river bed, dig out the soil and sand on the river bed, dig to the rock formation, and then water the dam body of the hydropower station until the dam The body and various projects are completed, water storage and power generation. Disadvantages of this kind of building hydropower station 1) The construction period is long, and the engineering cost of diversion, closure and cofferdam is high. ②The excavation volume of earth and rock is large, which consumes a lot of money. ③The excavation area is large, the vegetation is destroyed greatly, and it is not environmentally friendly.

The purpose of the present invention is to solve the above-mentioned shortcoming of construction hydropower station, provide a kind of without diversion, without closure, without cofferdam, can directly use caisson construction method to build a new type of "rolling sweep closure" hydropower station and its construction method in running water. Advantages: ① Construction of hydropower stations does not require diversion, interception, or cofferdams, which shortens the construction period and reduces investment. ②The caisson technology is used for dam construction, with less excavation area, and at the same time reduces diversion, closure, cofferdam and other projects, less ecological damage, and is very environmentally friendly.

Description of drawings:

Below in conjunction with accompanying drawing and actual construction, actual process and characteristic diagram among the present invention come out.

(Figure 1) ①Concrete frame dam body. ②Concrete flushing gate dam body. ③ Concrete water turbine and generator dam. ④Concrete sand retaining dam body. The above concrete dams are prefabricated or poured on site. In the river section where the hydropower station is constructed, the dams are sunk by caisson technology to the river bed, sand and soil are removed, and the rock formation is solidified to sink the concrete dams to the rock formation and the rock formation is firm. The dam bodies are also firmly connected.

(Fig. 2) After Fig. 1 completes the construction, build ⑥ ship lock ⑦ fish lock, ⑤ left attached dam, ⑤ right attached dam. The connection becomes the purpose of retaining water after interception of the whole roll.

(Fig. 3) After the "rolling mat frame" is constructed and assembled, the floating body is rolled in the rolling mat and fixed below the "rolling mat frame".

(Figure 4) The assembled "rolling mat frame" is installed on the upstream side of the concrete frame dam body.

(Figure 5) After starting, the "rolling mat frame" floating body rises and the rolling mat unfolds to completely seal the metal frame, cut off all the river water and raise the water level, and when it reaches the design water level, start the water turbine to drive the generator to generate electricity.

The present invention is accomplished through the following technical schemes, using caisson technology to prefabricate or make on-site ① concrete frame dam body ② concrete sand-washing sluice dam body ③ concrete water turbine, water turbine, generator dam body. ④Concrete sand retaining dam body. Put them into the river section where the hydropower station will be built, sink down, and sink to the river bed, remove the soil, sand and rocks and weathered rocks to connect firmly with the rock layers, and the dam bodies are also firmly connected (Figure 1). The river surface is wide, and a unit frame dam If the body is not enough to stop water, several or more unit frame dams can be connected to complete and build ⑤ left dam, ⑤ right dam, ⑥ ship lock, and ⑦ fish lock on both banks of the river. Connect with the dam body to complete the water retaining work (Figure 2). This moment, the river water flowed downstream from the frame hole in the frame dam body and the river water level did not rise this moment.

The straw mat can be rolled up into a cylindrical shape, and can also be unfolded into a plane. The invention uses the principle of rolling up and unfolding the straw mat to install a cylindrical floating body on the side of the straw mat and put a frame behind the straw mat, and the bottom of the straw mat is fixed on the lower side of the frame. , The cylindrical floating body is rolled in the straw mat, the grass mat is rolled into a cylinder, fixed under the frame, and put it vertically in the running water, as long as it is opened and fixed, it can automatically complete the work of cutting off the flowing water. The straw mat is made of grass, and the mat material is not strong. Change the straw mat material to be strong, durable, acid-resistant, corrosion-resistant, anti-aging, can be rolled into a cylinder, and can be unfolded into a plane. Use synthetic rubber material to replace Straw mat material This kind of straw mat that changes the material is called a roll mat. This "roll mat is installed on a metal frame to form a roll mat frame", and the "roll mat frame" structure (Figure 3) consists of a metal frame E, a roll mat F , cylindrical floating body G three fixed rods A1, A2, A3, three fixed ropes C1, C2, C3, three fixed rods A1, A2, A3 above the metal frame, through the inside of the metal frame and directly inserted into the three square holes B1, B2 below the frame , In B3, below the metal frame, left, middle, and right positions, fixed ropes, one end is fixed under the metal frame, and the other end has a square hole. There is a row of screw holes D1D2D3D4D5D6 under the mat frame. A cylinder floating body G (dismountable and adornable) is installed on the upper side of the rolling mat. A row of eyelets D`1D`2D`3D`4D`5D`6 are arranged on the lower side of the mat. Align the hole D1D2D3D4D5D6 of the metal frame and fix it tightly with screws, and assemble the floating body and the metal frame into a "rolling mat frame" intercepting device. Then turn the cylindrical floating body to the direction of the flowing water, turn the mat and turn it outside the cylindrical floating body to form a cylinder, turn it to the bottom of the frame and use fixed ropes C1, C2, C3 to wrap around the two ends and the middle of the floating body mat respectively, and fix the rope head Insert C1, C2, and C3 into the square holes of B1, B2, and B3 respectively, and then insert the heads of fixing rods A1, A2, and A3 into the holes of C1, C2, and C3 to fix them. . The size of the mat frame area should be equal to the size of the concrete frame. At this time, the river first flows through the hole of the roll mat frame (because the roll sweep is rolled into a tube shape, the metal frame exposes the hole), then flows through the concrete frame hole, and flows to the downstream. When the various projects of the hydropower station need to store water and generate electricity, as long as they are pulled apart at the same time, the fixing rods A1, A2 and A3 are raised, and at this time the rod heads leave the square holes of the fixing rope heads, and the fixing ropes C1, C2 and C3 are loosened. When the floating body under the underwater mat frame starts to float up, the fixed ropes C1, C2, and C3 are opened to drive the mat to unfold. Under the pressure of flowing water, the mat is unfolded and pressed on the metal frame. When the floating body rises a little, the mat is unfolded The water flow presses a little on the metal frame until the metal frame is completely sealed by the rolling mat, and the water cannot flow downstream. At this time, the water level of the river rises rapidly, and the upstream load of the dam body increases. When the water level rises to the load, when the water level rises to the design water level, start the turbine to drive the generator to generate electricity. When the flowing water is completely sealed, there will be no flow velocity underwater. At this time, send divers to the other three sides of the roll seat underwater, and use the pressure side to pull H. Fix it on the side of the metal frame so that no water seepage occurs, and then remove the cylindrical floating body and transport it to the shore for reuse next time. "The method of sweeping and closing the hydropower station building" just completes (Fig. 5).

The present invention can construct hydropower stations in any river section.

The present invention can also be applied to the crevice and blocking of river embankments.

Claims (5)

1. the 1. concrete frame dam body that pre-formed or concreting in site is constructed in power station section is built.2. concrete scouring sluice dam body.3. concrete water turbine, generator dam body.4. concrete sand dam body.Each dam body is avaled with sink well technique, sinks to riverbed, removed sandstone, each dam body of soil and weathered rock formation and sink to rock stratum and firmly connect with rock stratum, firmly connected between each dam body.

2. according to claim 1, it is described after, then build 6. ship lock 7. cross fish lock, 5. left attached dam, 5. right attached dam, are connected with each other with dam body, volume seat dam after, dash is used.

3. straw mat can be rolled up tubular, plane can also be launched into, side of the principle that the present invention is rolled and launched using straw mat on straw mat fills a floating cylinder, and a framework is put behind straw mat, and it is following that straw mat is fixed on below framework, floating cylinder is rolled up in straw mat, straw mat is rolled into cylinder, is fixed on framework lower section, and it is vertically placed in flowing water, as long as open fixing, can be automatically performed and block flowing water work.Straw mat is straw plaited，Straw mat material is shaky，Straw mat material is changed over solid，It is firm，It is wear-resisting、It is acidproof、Corrosion resistant、Anti-aging，Cylinder can be rolled into，Plane can be launched into again，From tartan，Replace straw mat material，This straw mat for changing material referred to as rolls up seat，This " volume seat " top fills a floating cylinder，" volume seat " is arranged on a metal framework，It is following that side below volume seat is fixed on metal framework，This volume dishes served at a feast product and metal framework area equation，This " volume seat "、Buoyancy aid、Metal framework is assembled integrally title " volume seat framework "，Buoyancy aid volume in volume seat，The direction come to flowing water rotates，Change into cylinder，Use fix bar A1、A2、A3 passes through the metal framework inside straight cutting framework three square hole B1 in lower section、B2、In B3，There are three gangs of static line C1 metal framework lower section、C2、C3 left, center, right positions below metal framework respectively，Rotating around in the left, center, right for going to lower section buoyancy aid volume seat，It is following that static line one is fixed on metal framework，Other end has individual square hole to insert B1 respectively、B2、B3，Square hole intraocular，Again fix bar A1、A2、A3 heads insert C1、C2、C3 is fixed in hole，Exactly assembling is finished after operating above " volume seat framework ".

4. according to claim 3, " the volume seat framework " that assembling is finished is arranged in (Fig. 2) 1. concrete frame dam body upstream side, and metal framework area will be equal in concrete frame dam body area size (Fig. 4) to be illustrated.

5. according to claim 4，" volume seat framework " after assembling is arranged in (Fig. 2) in 1. concrete frame dam body upstream side (Fig. 4) to be illustrated，Now river first open from metal framework volume sweeps across by hole，Kong Zhongliu then flows into downstream in concrete frame dam body hole，River level does not go up，When needing reservoir impoundment power generation after the completion of the work in every of power station，When starting volume seat framework，There are three fix bars A1 above volume seat framework、A2、A3，As long as while pulling open，Rise fix bar A1、A2、A3，At this moment head leaves the square hole static line C1 of fixed fag end、C2、C3 unclamps，Now roll up the buoyancy aid below seat framework under water to start floating and back down static line C1、C2、C3 drives volume seat to launch to receive flowing water flowing pressure，Volume seat is pressed on metal framework after launching，Buoyancy aid rises some volume seat and launches a bit，Just pressed on metal framework a bit by current，Until volume seat is metal framework, and all envelope is full，Water cannot flow to downstream go (Fig. 5) illustrate water level be raised to design water level when，Start the hydraulic turbine and drive electrical power generators.