Dam body structure of dam project

Abstract

The dam body structure of the dam project comprises a dam body, dam openings are formed in the dam body at intervals, an inserting groove is formed in the side wall of each dam opening, and a dam body is vertically inserted into the symmetrical inserting grooves of each dam opening in a lifting mode. A roller driving the dam body to descend and a driving gear are arranged between the dam body and the dam body and located on one side in the water flow direction, and a rotary sealing belt making contact with the dam body is arranged on one side, corresponding to the roller, of the inserting groove. A rolling wheel and a driving gear which drive the dam body to descend are arranged between the dam body and the dam body and located on one side of the water flow direction, the rolling wheel and the driving gear can drive the dam body to descend so as to solve the problem that due to large water pressure, the dam body is pressed and attached to the inner wall face of the inserting groove to hinder smooth descending of the dam body, timely control over flood discharge and dam opening blocking is achieved, and the service life of the dam body is prolonged. And potential safety hazards caused to the downstream due to the overlarge flood discharge amount are avoided. And meanwhile, the sealing performance of the dam body to dam opening plugging is improved through the rotary sealing belt.

Description

Technical Field

[0001] The present application relates to the technical field of dam engineering, and in particular to a dam body structure of a dam engineering. Background Art

[0002] Dam projects are an important part of water conservancy projects. Their main function is to intercept rivers and form reservoirs to store and regulate water resources, while meeting multiple needs such as power generation, irrigation, water supply, and flood control. They play a key role in regulating water flow, storing water resources, flood control, and power generation. There are many types of dams, including gravity dams, earth-rock dams, arch dams, etc. Each type has its own unique structural characteristics and applicable conditions.

[0003] Gravity dams are a type of dam that uses its own gravity to maintain the stability of the dam body. They are generally made of concrete and have the characteristics of strong resistance to damage and difficulty in being destroyed by floods. They are widely used in dam projects. Figure 1 The figure shows a common gravity dam structure, including a dam body, with dam openings at intervals on the dam body, and slots on the side walls of each dam opening. A dam body is inserted into the slots symmetrically at each dam opening for vertical lifting. A steel wire rope is connected to the top of each dam body for lifting and lowering the dam body. After the dam body is lifted, the dam opening is opened for irrigation, flood discharge, etc.; and after the dam body is lowered, the dam opening is blocked for water storage, etc.

[0004] During the summer flood season, the dam mouth can be opened to discharge flood water, such as Figure 2-5 As shown in the figure, after the dam body is lifted, water will flow through the opened dam mouth. When the downstream flood discharge is large and needs to be reduced, the dam body is lowered by wire rope to block the dam mouth. During the flood season, due to the large amount of water stored inside the dam, there is a large amount of water pressure on the surface of the dam body, which makes the dam body pressed against the inner wall of the slot on the side of the water flow direction. It is difficult to rely on the weight of the dam body to quickly descend to achieve the effect of blocking the dam mouth. Figure 6 As shown, the wire rope has dropped and bent, but the dam body has not dropped synchronously due to excessive water pressure, causing it to still be in a state of flood discharge. The flood discharge volume cannot be controlled in a timely and accurate manner, posing certain safety hazards to the downstream. Summary of the invention

[0005] In response to the above-mentioned problems, the present application aims to provide a dam body structure for a dam project, which can drive the dam body to descend through rollers and driving gears, so as to solve the problem that the dam body is pressed against the inner wall surface of the slot due to large water pressure and hinders the smooth descent of the dam body, thereby achieving timely control of flood discharge and blocking of the dam mouth, and avoiding safety hazards caused by excessive flood discharge to the downstream.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is as follows: a dam body structure of a dam project, including a dam body, on which dam openings are spaced apart, each dam opening side wall is provided with a slot, and a dam body is vertically lifted and inserted into the slot symmetrically at each dam opening, characterized in that a driving component for driving the dam body to descend is provided between the dam body and the dam body and on one side in the direction of water flow.

[0007] Preferably, the driving member is a roller that is in each slot and is arranged at a vertical interval on the side wall on one side of the water flow direction and is in contact with the dam body.

[0008] Preferably, one or more of the rollers are configured as drive gears, and a rack meshing with the drive gear is embedded in the dam body.

[0009] Preferably, a rotary sealing belt in contact with the dam body is provided on one side of the slot corresponding to the roller.

[0010] The beneficial effects of the present application are as follows: a roller and a driving gear for driving the dam body to descend are arranged between the dam body and the dam main body and on one side of the water flow direction, which can drive the dam body to descend, so as to solve the problem that the dam body is pressed against the inner wall surface of the slot due to the large water pressure and hinders the smooth descent of the dam body, and timely control of flood discharge and dam mouth blocking is achieved to avoid safety hazards caused by excessive flood discharge to the downstream. At the same time, the sealing performance of the dam body to the dam mouth is improved by the rotating sealing belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the current dam structure.

[0012] Figure 2 for Figure 1 Illustration of the middle dam body moving upward to discharge flood water.

[0013] Figure 3 This is an enlarged illustration of a single dam body moving upward to discharge flood water.

[0014] Figure 4 This is a diagram of the downward movement and blocking of a single dam body.

[0015] Figure 5 This is a side view of the dam moving upward to discharge flood water.

[0016] Figure 6 This is a diagram showing the dam body moving downward and blocking.

[0017] Figure 7 This is a side view of the dam structure of this application.

[0018] Figure 8 For this application Figure 7 Enlarged view of the structure at point A in the middle.

[0019] In the figure: 7-wire rope. DETAILED DESCRIPTION

[0020] In order to enable ordinary technicians in the field to better understand the technical solution of the present application, the technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Refer to the attached Figures 1 to 8 The dam body structure of a dam project shown in the figure comprises a dam body 1, on which dam openings 1a are provided at intervals, and each dam opening 1a has a slot 1b provided on its side wall, and a dam body 2 is vertically inserted into each dam opening 1a symmetrically in the slot 1b, and the dam body 2 is lifted and lowered by a steel wire rope to achieve the functions of flood discharge and blocking the dam opening for water storage. In order to solve the problem that the dam body is subjected to a large amount of water pressure and is difficult to quickly block the dam opening due to excessive water storage and in the process of blocking the dam opening to reduce the amount of flood discharge, the present application provides a dam body structure, such as Figure 7 As shown, a driving component for driving the dam body 2 to descend is provided between the dam body 2 and the dam body 1 and on one side of the water flow direction. The dam body 2 can be driven to descend by the driving component to solve the problem that the dam body 2 is pressed against the inner wall surface of the slot 1b due to a large amount of water pressure and is hindered from descending smoothly, thereby realizing timely control of flood discharge and blocking of the dam mouth 1a.

[0022] Specifically, Figure 7 As shown, the driving member is a roller 3 in contact with the dam body 2, which is arranged in each slot 1b and located at a vertical spacing on the side wall on one side of the water flow direction. When the dam body 2 is lowered, the dam body 2 contacts the roller 3. Through rolling contact with the roller 3, the problem that the dam body 2 and the slot 1b have a large pressing force and are difficult to lower smoothly is solved, thereby achieving accurate control of flood discharge and blocking the dam mouth 1a, and avoiding safety hazards to the downstream caused by excessive flood discharge time.

[0023] To further drive the dam body 2 downward, Figure 8 As shown, one or more of the rollers 3 are set as drive gears 4, and the present application selects the rollers 3 in the middle position to be replaced by drive gears 4, which can be contacted when the dam body 2 moves up and down. A rack 5 meshing with the drive gear 4 is embedded in the dam body 2, wherein the drive gear 4 is driven by a reduction motor. During the downward movement of the dam body 2, the drive gear 4 actively drives the dam body 2 downward by meshing with the rack 5, further overcoming the problem of the pressure of a large amount of water on the dam body 2 and hindering the downward movement of the dam body 2, thereby realizing the precise lifting and lowering action of the dam body 2. When the dam body moves upward to discharge flood water, the drive gear 4 can still reversely drive the dam body 2 upward to assist the lifting of the wire rope, thereby achieving the effect of rapid lifting and lowering, and by assisting the wire rope, the risk of the wire rope being overloaded and broken can be reduced.

[0024] Since the dam body 1 and the dam body 2 are usually cast by concrete, the dam body 2 is in hard contact with the inner wall of the slot 1b, and due to the roughness of the concrete surface, the sealing between the dam body 1 and the slot 1b is insufficient, resulting in water leakage after the dam mouth is blocked, affecting the water storage capacity. Therefore, in order to improve the sealing of the dam body 2 after blocking, Figure 8 As shown, a rotating sealing belt 6 (its arrangement structure is like a rotating conveyor belt structure) in contact with the dam body 2 is arranged on one side of the slot 1b corresponding to the roller 3. During the lifting and lowering process of the dam body 2, the side of the dam body is always sealed against the rotating sealing belt 6, and the rotating sealing belt 6 rotates up and down with the dam body 2, thereby improving the sealing and plugging effect on the dam opening 1a.

[0025] The principle of the present application is: a roller 3 in contact with the dam body 2 is arranged in each slot 1b of the dam mouth 1a and is located at a vertical spacing on the side wall on one side of the water flow direction, and the middle roller 3 is selected to be replaced with a driving gear 4, and a rack 5 meshing with the driving gear 4 is embedded in the dam body 2. When the dam body 2 is lowered, the dam body 2 contacts the roller 3, and through rolling contact with the roller 3, and driven downward by the driving gear 4, the dam body 2 overcomes the pressure of the water volume and achieves the effect of smoothly blocking the dam mouth 1a. When the dam body 2 is lifted, the driving gear 4 can still reversely drive the dam body 2 to move up, assist the lifting of the wire rope, and achieve the effect of rapid lifting and lowering. Under the effect of assisting the wire rope, the risk of the wire rope being overloaded and broken can be reduced, and the problem that the dam body 2 and the slot 1b have a large pressing force and are difficult to descend smoothly is solved, thereby achieving accurate control of flood discharge and blocking the dam mouth 1a, and avoiding the safety hazards caused to the downstream by the long flood discharge time.

[0026] During the lifting and lowering process of the dam body 2, the side of the dam body is always sealed against the rotary sealing belt 6, and the rotary sealing belt 6 rotates up and down with the dam body 2 to improve the sealing effect on the dam opening 1a.

[0027] The above shows and describes the basic principles, main features and advantages of the present application. Without departing from the spirit and scope of the present application, the present application may have various changes and improvements, which fall within the scope of the present application to be protected.

Claims

1. A dam structure for a dam project, comprising a dam body (1), wherein dam openings (1a) are provided at intervals on the dam body (1), and each dam opening (1a) has a side wall provided with a slot (1b), and a dam body (2) is vertically inserted into the slot (1b) symmetrical to each dam opening (1a), characterized in that: A driving component for driving the dam body (2) to descend is provided between the dam body (2) and the dam body (1) and on one side in the direction of water flow; The driving member is a roller (3) in each slot (1b) and arranged at a vertical interval on the side wall on one side of the water flow direction and in contact with the dam body (2); One or more of the rollers (3) are configured as a driving gear (4), and a rack (5) meshing with the driving gear (4) is embedded in the dam body (2).

2. The dam structure according to claim 1, characterized in that: A rotating sealing belt (6) in contact with the dam body (2) is provided on one side of the slot (1b) corresponding to the roller (3).

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