CN112962539A

CN112962539A - Ecological hole that drains of formula of covering is added in floodgate bottom plate chisel groove

Info

Publication number: CN112962539A
Application number: CN202110155968.1A
Authority: CN
Inventors: 白瑞迪; 刘雪纯; 白中天; 郑晓慧; 王航; 刘善均; 许唯临; 王韦; 田忠; 张法星
Original assignee: Sichuan University
Current assignee: Sichuan University
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-06-15
Anticipated expiration: 2041-02-04
Also published as: CN112962539B

Abstract

The invention provides an ecological water drainage hole with a cover and a chiseled groove on a gate bottom plate, which is formed by chiseling a groove on the gate bottom plate, wherein the groove forms a water drainage channel between the edge of the bottom of a gate and the gate bottom plate after the gate is put down. Because the gate bottom plate is dug, the gate can not be closed when being placed to the lowest, and no matter the water level at the upstream of the reservoir is at a normal water storage level or a dead water level, water can flow downstream through the ecological water discharging hole to ensure the downstream ecological water demand at any time. The invention can effectively solve the problem of ecological water drainage only by constructing on the gate bottom plate, has relatively simple implementation and less investment, can be implemented on the basis of not damaging other building structures particularly for the built engineering, avoids engineering damage and reduces the technical difficulty of the engineering.

Description

Ecological hole that drains of formula of covering is added in floodgate bottom plate chisel groove

Technical Field

The invention belongs to the field of engineering operation and ecological environment in hydraulic and hydroelectric engineering, and particularly relates to an ecological water drainage channel.

Background

A plurality of water storage gates and check gates are arranged in hydraulic engineering, and when the water storage gates and the check gates are built in the hydraulic engineering, the water is not available or little in the downstream, and the downstream riverway is dry. Certain ecological flow must be let down to the low reaches during power station operation according to engineering operation and ecological environment needs to satisfy the ecological requirement of river course and the production of power station low reaches villages and small towns, domestic water demand. Therefore, in the design of the hydro-junction engineering, the influence of river cutoff on the downstream ecological environment, industrial and agricultural water and residential water needs to be fully considered, and how to avoid the waste of water energy of ecological drainage flow, a special ecological water flow drainage channel, namely an ecological drainage channel, needs to be arranged on a river blocking building, and the ecological drainage channel is also an important content of sustainable development of the ecological environment.

The ecological water drainage channel is a permanent building and should be arranged in combination with other buildings of the project. In general, the conventional construction gate scheme is to arrange an ecological water discharge channel by connecting an embedded pipeline with the upstream and the downstream, and arrange a gate valve for control. The scheme is easier to implement and has less investment for the project which is being built or is to be built; however, for the existing engineering, the existing concrete structure is excavated or new excavation is carried out, and the existing reservoir level needs to be emptied to implement, so that on one hand, the construction difficulty is high, the investment is high, on the other hand, the safety of the original building structure is influenced, and the technical requirements are high.

Disclosure of Invention

The invention aims to provide a gate bottom plate chiseling and covering type ecological water drainage hole aiming at the defects of the prior art, so as to reduce the construction difficulty of an ecological water drainage channel and the engineering investment, and particularly solve the problems that the construction difficulty of the ecological water drainage channel of the constructed engineering is high, the investment is high, and the safety of a building structure is influenced.

The invention provides a gate bottom plate chiseling groove type ecological water discharging hole which is arranged on a water gate bottom plate and is formed by chiseling a groove on the water gate bottom plate, wherein the groove forms a water discharging channel between the edge of the bottom of a gate and the water gate bottom plate after the gate is put down.

The ecological water drain hole of the groove type is chiseled on the gate bottom plate, and furthermore, the groove is chiseled along the water flow direction and penetrates through the section of the gate bottom plate, which is vertical to the gate.

The ecological water drain hole is formed in the sluice bottom plate in a chiseled groove mode, and further the cross section of the groove in the direction perpendicular to the water flow is rectangular. In order to make the upstream water flow more smoothly to the downstream, it is preferable that the sidewalls of the upstream end and the downstream end of the groove are arc-shaped or arc-shaped.

The ecological water drain hole is formed in the gate bottom plate in a chiseled groove mode, and furthermore, the center line of the groove perpendicular to the water flow direction is overlapped with the edge of the bottom of the gate in a closed state.

The ecological water drain hole is characterized in that the length of the groove along the water flow direction is 1/10-1/5 of the width of the gate, the width of the groove is 1/20-1/10 of the width of the gate, and the depth of the groove is 1/20-1/10 of the width of the gate.

The ecological water drain hole of above-mentioned floodgate bottom plate chisel slot type, further, the recess is supporting to be provided with the stagnant water lid that the inside cavity of shape Pi recess matches, when need not discharging water, realizes that the stagnant water lid is absorbed in the recess and fills the recess to floodgate bottom plate parallel and level. When the water is not required to be drained and covered, the sealing material, such as rubber, is preferably adopted to seal the gap between the periphery of the water stop cover and the side wall of the groove.

Because the gate bottom plate is dug, the gate can not be closed when being placed to the lowest, and no matter the water level at the upstream of the reservoir is at a normal water storage level or a dead water level, water can flow downstream through the ecological water discharging hole to ensure the downstream ecological water demand at any time. When ecological water drainage is not needed, a water stop cover can be added on the chisel groove to restore the original gate bottom plate and meet the requirement of water stop.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention provides a novel gate bottom plate chiseling groove and cover type ecological water drain hole. Meanwhile, the chiseling groove can be covered under the non-drainage state to block water flow.

2. The invention can effectively solve the problem of ecological water drainage only by constructing on the gate bottom plate, has relatively simple implementation and less investment, can be implemented on the basis of not damaging other building structures particularly for the built engineering, avoids engineering damage and reduces the technical difficulty of the engineering.

Drawings

FIG. 1 is a schematic view of a structure of a water discharge hole of a gate bottom plate;

FIG. 2 is a top view of a water discharge hole of a gate bottom plate;

FIG. 3 is a view of the downstream of a slotted bleed hole in the gate plate.

In the figure, 1 is a gate, 2 is a groove, 3 is a gate bottom plate, 4 is a wide top weir, and 5 is a side wall.

Detailed Description

The invention is further illustrated by the following examples. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and those skilled in the art can make certain insubstantial modifications and adaptations of the present invention based on the above disclosure and still fall within the scope of the present invention.

Example 1

The ecological water drainage hole of the gate bottom plate chisel groove type of this embodiment, as described in fig. 1-3, is arranged on the sluice bottom plate, and is formed by cutting a groove on the sluice bottom plate, and the groove forms a water drainage channel between the edge of the gate bottom and the sluice bottom plate after the gate is put down. The groove is cut along the water flow direction (the central axis direction of the gate bottom plate) and penetrates through the section of the gate bottom plate, which is vertical to the gate. The central line of the groove perpendicular to the water flow direction is superposed with the bottom edge of the gate when the gate is put down. The cross section (cross section) of the groove in the direction perpendicular to the water flow is rectangular. In order to make the upstream water flow more smoothly to the downstream, the side walls of the upstream end and the downstream end of the groove are set into arc shapes. The length of the groove along the water flow direction is 1/5 of the width of the gate, the groove width is 1/10 of the width of the gate, and the groove depth is 1/20 of the width of the gate. The water stop cover matched with the inner cavity of the Pi-shaped groove is arranged on the groove in a matched mode, and when water does not need to be discharged, the water stop cover is sunk into the groove to fill the groove into the brake bottom plate to be flush. When the water is not required to be drained and covered, the sealing material, such as rubber, is preferably adopted to seal the gap between the periphery of the water stop cover and the side wall of the groove.

Claims

1. A trench type ecological water drain hole of a gate bottom plate is characterized in that the trench type ecological water drain hole is formed in the gate bottom plate by chiseling a groove on the gate bottom plate, and the groove forms a water drain channel between the edge of the bottom of a gate and the gate bottom plate after the gate is put down.

2. The ecological water discharge hole of claim 1, wherein the groove is cut along the water flow direction and penetrates the section of the gate bottom plate which is vertical to the gate.

3. The ecological drain hole of claim 1, wherein the groove has a rectangular cross-sectional shape in a direction perpendicular to the water flow.

4. The ecological water discharge hole of claim 3, wherein the side walls of the upstream end and the downstream end of the groove are arc-shaped or arc-shaped.

5. The ecological drain hole of claim 1, wherein the groove has a center line perpendicular to the water flow direction and coincides with the bottom edge of the gate in a closed state.

6. The ecological water discharging hole with the chiseled groove on the gate bottom plate as claimed in claim 1, wherein the length of the groove along the water flow direction is 1/10-1/5 of the gate width, the groove width is 1/20-1/10 of the gate width, and the groove depth is 1/20-1/10 of the gate width.

7. The ecological water discharging hole of the sluice bottom plate dug groove type according to claim 1, wherein the groove is provided with a water stop cover matching with the inner cavity of the Pi groove in shape.