Ecological drainage structure in diversion tunnel plugging period

Abstract

The utility model discloses an ecological drainage structure in a diversion tunnel plugging period, which comprises a diversion tunnel inlet structure, an ecological drainage pipe, a diversion tunnel plugging gate opening and closing system and an ecological drainage pipe plugging gate opening and closing system, and the ecological drainage pipe is embedded in a reinforced concrete gate pier on one side of the diversion tunnel inlet structure; a gate groove of the diversion tunnel blocking gate opening and closing system is located in the diversion tunnel inlet structure, and an opening and closing machine is located at the top of a bent frame of the diversion tunnel inlet structure. The gate groove of the ecological blow-off pipe blocking gate opening and closing system is located in the diversion tunnel reinforced concrete gate pier on the same side with the ecological blow-off pipe, and the hoist is located at the top of the diversion tunnel reinforced concrete gate pier on the same side with the ecological blow-off pipe. Ecological protection and water conservancy projects are combined, the structure is simple, the ecological blow-off pipe is pre-buried in the diversion tunnel inlet structure, in the diversion tunnel blocking period, the blocking gate descends to stop water, ecological flow is discharged through the ecological blow-off pipe, and water conservancy projects and ecological protection are combined.

Description

TECHNICAL FIELD

[0001] The utility model relates to water conservancy project and ecological protection technology, concretely relates to ecological water releasing structure during diversion tunnel plugging. BACKGROUND

[0002] In the process of water conservancy project construction, in order to solve the diversion problem and realize dry land construction, the river upstream water is usually diverted to the downstream by building diversion tunnel, and ecological flow is discharged by diversion tunnel during construction, but there is no way to discharge ecological flow during the process of plugging diversion tunnel and dam front water level rising to the bottom elevation of power diversion tunnel inlet.

[0003] Ecological flow is the minimum water flow to maintain downstream biological survival and ecological balance, under the background of increasing attention to ecological protection, the ecological protection and water conservancy construction are integrated, and the discharge of ecological flow during the plugging of diversion tunnel is ensured, which is the problem needing to be solved in the process of water conservancy project construction. UTILITY MODEL CONTENT

[0004] The utility model is directed to the problem encountered in actual engineering, and ecological water releasing structure during diversion tunnel plugging is proposed to solve the problem of ecological flow discharge during the plugging of diversion tunnel, ensure the continuous flow of ecological flow during the whole construction period, and realize the integration of water conservancy project and ecological protection.

[0005] The utility model adopts the technical scheme that:

[0006] The ecological water releasing structure during diversion tunnel plugging comprises a diversion tunnel inlet structure, an ecological water releasing pipe, a diversion tunnel plugging gate opening and closing system and an ecological water releasing pipe plugging gate opening and closing system.

[0007] The diversion tunnel inlet structure comprises two side piers, a bottom plate, a top plate and a bent frame, and the bottom plate, the two side piers, the top plate and the bent frame are sequentially arranged from bottom to top.

[0008] The ecological water releasing pipe is embedded in one side pier of the diversion tunnel inlet structure.

[0009] The diversion tunnel plugging gate opening and closing system comprises a diversion tunnel plugging gate, an opening and closing machine, a steel cable and a gate slot; the opening and closing machine of the diversion tunnel plugging gate is located at the top of the bent frame of the diversion tunnel inlet structure, and the gate slot of the diversion tunnel plugging gate is located in the diversion tunnel inlet structure; the opening and closing machine of the diversion tunnel plugging gate is connected with the steel cable at the lower part, and the steel cable is connected with the diversion tunnel plugging gate at the lower part, and the diversion tunnel plugging gate is put into the gate slot of the diversion tunnel plugging gate by the opening and closing machine of the diversion tunnel plugging gate to realize the plugging of the diversion tunnel.

[0010] The ecological water releasing pipe blocking gate opening and closing system comprises an ecological water releasing pipe blocking gate, an opening and closing machine, a pull rod and a gate slot; the opening and closing machine of the ecological water releasing pipe blocking gate is located on the top of the top plate of the diversion tunnel inlet structure, the gate slot of the ecological water releasing pipe blocking gate is located in the reinforced concrete gate pier of the diversion tunnel on the same side of the ecological water releasing pipe, the lower part of the opening and closing machine of the ecological water releasing pipe blocking gate is connected with the pull rod, and the lower part of the pull rod is connected with the ecological water releasing pipe blocking gate.

[0011] Further, the gate piers, the bottom plate, the top plate and the upper bent of the diversion tunnel inlet structure are all reinforced concrete structures and are connected into a whole through reinforced concrete.

[0012] Further, the top of the bent is provided with stainless steel railings around.

[0013] The ecological water releasing pipe blocking gate opening and closing system has the advantages that:

[0014] The ecological water releasing pipe blocking gate opening and closing system can be used for ecological water releasing during the diversion tunnel blocking, solves the problem of interruption of ecological flow discharge during the diversion tunnel blocking, has the characteristics of simple structure, convenient operation and low engineering cost, and has high popularization and application value in the field of reservoir hub engineering. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a longitudinal section structure schematic view of the utility model;

[0016] Figure 2 It is Figure 1 A-A section structure schematic view of the utility model;

[0017] Figure 3 It is Figure 2 B-B section structure schematic view of the utility model;

[0018] Figure 4 It is Figure 2 C-C section structure schematic view of the utility model;

[0019] Figure 5 It is a diversion tunnel blocking gate opening and closing system layout view of the utility model;

[0020] Figure 6 It is an ecological water releasing pipe blocking gate opening and closing system layout view of the utility model.

[0021] In the figure: 1 - diversion tunnel inlet structure; 2 - ecological water release pipe; 11 - pier; 12 - bottom plate; 13 - top plate; 14 - bent; 15 - stainless steel railing; 3 - diversion tunnel closure gate opening and closing system; 31 - diversion tunnel closure gate opening and closing machine; 32 - diversion tunnel closure gate; 33 - diversion tunnel closure gate slot; 34 - steel cable; 4 - ecological water release pipe closure gate opening and closing system; 41 - ecological water release pipe closure gate opening and closing machine; 42 - ecological water release pipe closure gate; 43 - ecological water release pipe closure gate slot; 44 - pull rod. DETAILED DESCRIPTION

[0022] The utility model will be further explained in connection with the drawings below.

[0023] As Figures 1-6 shown, the utility model diversion tunnel closure period ecological water release structure, including diversion tunnel inlet structure 1, ecological water release pipe 2, diversion tunnel closure gate opening and closing system 3 and ecological water release pipe closure gate opening and closing system 4, diversion tunnel inlet structure 1 includes both sides pier 11, bottom plate 12, top plate 13, bent 14 and stainless steel railing 15.Ecological water release pipe 2 is buried in advance in the pier 11 of one side of diversion tunnel inlet structure 1.The slot 33 of diversion tunnel closure gate opening and closing system 3 is located in diversion tunnel inlet structure 1, and the opening and closing machine 31 is located at the top of the bent 14 of diversion tunnel inlet structure.The slot 43 of ecological water release pipe closure gate opening and closing system 4 is located in the reinforced concrete pier 11 of the same side of ecological water release pipe 2, and the opening and closing machine 41 is located at the top of the reinforced concrete pier 11 of the same side of ecological water release pipe 2.

[0024] Both sides pier 11, bottom plate 12, top plate 13 and bent 14 of diversion tunnel inlet structure 1 are reinforced concrete structures, which are connected as a whole by reinforced concrete, and are sequentially from bottom to top bottom plate 12, both sides pier 11, top plate 13, bent 14 and stainless steel railing 15, and the stainless steel railing 15 is located at the top of the bent 14.

[0025] As Figure 5 shown, diversion tunnel closure gate opening and closing system 3 includes diversion tunnel closure gate opening and closing machine 31, diversion tunnel closure gate 32, diversion tunnel closure gate slot 33 and steel cable 34.The diversion tunnel closure gate opening and closing machine 31 is placed on the top of the bent 14 of the upper part of diversion tunnel inlet structure, the diversion tunnel closure gate slot 33 is located in the diversion tunnel inlet structure 1, the lower part of the diversion tunnel closure gate opening and closing 31 is connected with the steel cable 34, the lower part of the steel cable 34 is connected with the diversion tunnel closure gate 32, and the diversion tunnel closure gate 32 is put into the diversion tunnel closure gate slot 33 by the diversion tunnel closure gate opening and closing machine 31 to realize the closure of the diversion tunnel.

[0026] As Figure 6As shown, the ecological water release pipe blocking gate opening and closing system 4 comprises an ecological water release pipe blocking gate hoist 41, an ecological water release pipe blocking gate 42, an ecological water release pipe blocking gate slot 43 and a pull rod 44. The ecological water release pipe blocking gate hoist 41 is placed on the top of the diversion tunnel inlet structure top plate 13, the ecological water release pipe blocking gate slot 43 is located in the diversion tunnel reinforced concrete pier 11 on the same side of the ecological water release pipe, the lower part of the ecological water release pipe blocking gate hoist 41 is connected with the pull rod 44, the lower part of the pull rod 44 is connected with the ecological water release pipe blocking gate 42, and the ecological water release pipe 2 is blocked by putting the ecological water release pipe blocking gate 42 into the ecological water release pipe blocking gate slot 43 through the ecological water release pipe blocking gate hoist 41.

[0027] The construction and use steps of the utility model are as follows:

[0028] S1, the pipe diameter of the ecological water release pipe 2 is determined according to the ecological flow to be discharged.

[0029] S2, the diversion tunnel inlet structure 1 and the embedded ecological water release pipe 2 are completed before the riverway is intercepted and the diversion tunnel is watered, and the diversion tunnel blocking gate opening and closing system 3 and the ecological water release pipe blocking gate opening and closing system 4 are installed.

[0030] S3, when the main structure of the reservoir hub project is completed and water storage is to be performed, the diversion tunnel is blocked by the diversion tunnel blocking gate opening and closing system 3.

[0031] S4, after the diversion tunnel is blocked, the ecological flow is discharged by the ecological water release pipe 2, the upstream water level rises with the upstream water, and when the upstream water level exceeds the bottom elevation of the power generation water diversion tunnel inlet, the ecological flow can be discharged by the power generation water diversion tunnel, at this time, the ecological water release pipe 2 is blocked by the ecological water release pipe blocking gate opening and closing system 4, and the inside of the diversion tunnel is blocked by concrete.

[0032] The utility model is described in the above embodiment combined with the drawings, but it cannot be understood as the limitation of the protection scope of the utility model, and it should be pointed out that for ordinary skilled persons in the art, the technical solutions obtained by equivalent replacement or equivalent transformation without departing from the concept of the utility model all belong to the protection scope of the utility model.

Claims

1. An ecological water releasing structure during the plugging period of a diversion tunnel, characterized in that: It includes diversion tunnel entrance structure, ecological water release pipe, diversion tunnel closure gate opening and closing system, ecological water release pipe closure gate opening and closing system. The diversion tunnel entrance structure includes two side piers, a bottom plate, a top plate and a bent, from bottom to top in turn being the bottom plate, the two side piers, the top plate and the bent. The ecological water release pipe is embedded in one side pier of the diversion tunnel entrance structure. The diversion tunnel closure gate opening and closing system includes a diversion tunnel closure gate, a hoist, a steel cable and a gate slot; the hoist of the diversion tunnel closure gate is located on the top of the bent of the diversion tunnel entrance structure, the gate slot of the diversion tunnel closure gate is located in the diversion tunnel entrance structure; the lower part of the hoist of the diversion tunnel closure gate is connected with the steel cable, the lower part of the steel cable is connected with the diversion tunnel closure gate, and the diversion tunnel is closed by putting the diversion tunnel closure gate into the gate slot of the diversion tunnel closure gate through the hoist of the diversion tunnel closure gate. The ecological water release pipe closure gate opening and closing system includes an ecological water release pipe closure gate, a hoist, a pull rod and a gate slot; the hoist of the ecological water release pipe closure gate is located on the top of the top plate of the diversion tunnel entrance structure, the gate slot of the ecological water release pipe closure gate is located in the diversion tunnel reinforced concrete pier on the same side of the ecological water release pipe, the lower part of the hoist of the ecological water release pipe closure gate is connected with the pull rod, the lower part of the pull rod is connected with the ecological water release pipe closure gate, and the ecological water release pipe is closed by putting the ecological water release pipe closure gate into the gate slot of the ecological water release pipe closure gate through the hoist of the ecological water release pipe closure gate.

2. The ecological water releasing structure for closure period of a diversion tunnel according to claim 1, characterized in that: The two side piers, the bottom plate, the top plate and the upper bent of the diversion tunnel entrance structure are all reinforced concrete structures, and are connected as a whole through reinforced concrete.

3. The ecological water releasing structure for closure period of a diversion tunnel according to claim 1 or 2, characterized in that: Stainless steel railings are arranged around the top of the bent. The bottom plate, the top plate and the bent of the diversion tunnel entrance structure are all reinforced concrete structures, and are connected as a whole through reinforced concrete.

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