CN213417742U - A empty navigation wall that passes through for jointly arranging with drainage canal divides - Google Patents
A empty navigation wall that passes through for jointly arranging with drainage canal divides Download PDFInfo
- Publication number
- CN213417742U CN213417742U CN202021925243.3U CN202021925243U CN213417742U CN 213417742 U CN213417742 U CN 213417742U CN 202021925243 U CN202021925243 U CN 202021925243U CN 213417742 U CN213417742 U CN 213417742U
- Authority
- CN
- China
- Prior art keywords
- navigation
- water level
- wall
- water
- ship
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
Landscapes
- Sewage (AREA)
Abstract
A permeable navigation wall for being jointly arranged with a water diversion drainage channel belongs to the technical field of integral arrangement of navigation buildings. The basic design parameters are as follows: the height H of the top of the transparent navigation wall is higher than the highest navigation water level W of the ship lockmax(ii) a The top elevation K of the permeable hole at the bottom is lower than the lowest navigation water level W of the ship lockminAnd is less than the water level at which the ship is at the maximum draft D when the lowest navigation water level is reached, namely: h>Wmax；K<Wmin-D; the bottom water permeable holes are arranged side by side in an equidistant mode; the total width of the bottom water permeable holes is not less than the width of the navigation channel. The true bookWith neotype beneficial effect lie in: 1. the engineering quantity is small, and the optimal navigation condition can be obtained when the water diversion channel and the water diversion channel are jointly arranged; 2. the navigation guarantee rate of the ship lock of the large-flow large-curvature curved river reach is obviously improved.
Description
Technical Field
The utility model provides a lead to empty navigation wall that is used for jointly arranging with diversion drainage channel belongs to navigation building whole technical field of arranging.
Background
The upstream and downstream of the ship lock are connected with the main river channel through the pilot channel and the entrance area, so the safety of the ship passing through the lock is directly influenced by the quality of the navigation water flow conditions in the entrance area of the pilot channel, and the throat for the ship (team) to enter and exit the ship lock is formed.
In order to ensure the smoothness and stability of water flow in the approach channel, the general design specification of ship locks 5.6.4 requires that the included angle between the central lines of the approach channel, the entrance area and the connecting section and the main flow direction of a river or an approach is reduced. In the case of insufficient data, the included angle is not larger than 25 °. "
However, in the process of comprehensive development of the hydraulic engineering in China, in order to save the engineering amount, a plurality of hubs are arranged on curved roads and river reach of sandbars in rivers. At these bends ship lock works are constructed, the angle between the centre line of the approach channel and the main stream is often more than 25 degrees.
This results in the inevitable occurrence of strong oblique water currents in the lock gate area. After the transverse flow velocity component or the backflow of the oblique water flow reaches certain strength, a bad flow state which hinders the ship from entering and exiting the ship lock can be formed, so that the sailing ship (team) can generate transverse drift and torsion, and the ship can be out of control in serious conditions, so that accidents are caused, and the navigation is influenced.
Experts and scholars at home and abroad carry out long-term research on the water flow conditions of the entrance door area of the approach channel and provide various improving measures, such as arranging a navigation wall, adding a diversion pier, adopting a floating diversion dike, arranging a spur dike, an underwater dike and the like, but the following problems still exist in the prior art:
1, when the high flow, the contained angle is greater than 25 crooked river courses between channel central line and the mainstream, through modes such as navigation wall, water conservancy diversion mound, can't solve the problem of ship lock navigation, has reduced the navigation assurance rate of ship lock engineering.
2, when the low flow, the surface of water of different positions often has horizontal flood peak difference in the river course, and mainstream department water level often is a little higher than the approach channel water level, and the horizontal rivers that form cause adverse effect to the rivers in the approach channel.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above problem, provide a empty navigation wall that passes through that is used for jointly arranging with diversion drainage canal.
Particularly the utility model discloses a bottom sky navigation wall that passes through, its basic design parameter is:
the height H of the top of the bottom transparent navigation wall is higher than the highest navigation water level W of the ship lockmax；
The top elevation K of the permeable hole at the bottom is lower than the lowest navigation water level W of the ship lockminAnd is smaller than the water level of the ship at the maximum draft D at the lowest navigation water level. Namely:
H>Wmax；K<Wmin-D
wherein: h is the height of the top of the flow-isolating navigation wall in unit m; wmaxThe highest navigation water level for the ship lock to run is unit m; k is the height of the top of the water permeable hole at the bottom of the flow partition wall in the unit of m; wminThe lowest navigation water level of the ship lock is unit m; d is the maximum draft of the designed ship in unit m.
The bottom water permeable holes of the bottom hollow navigation wall are arranged side by side in an equidistant mode;
the total width of the bottom water permeable holes is not less than the width of the navigation channel.
The beneficial effects of the utility model reside in that:
1. the utility model has small work load, and can obtain the optimal navigation condition when being combined with the water diversion and drainage channel;
2. the utility model discloses obviously improve the navigation assurance rate of large-traffic big camber crooked river reach ship lock.
Drawings
FIG. 1 is a schematic view of the general arrangement of a permeable navigation wall for combined arrangement with a diversion canal of the present invention;
FIG. 2 is a schematic view of the arrangement of the vertical surface of the "permeable navigation wall for combined arrangement with the diversion canal" of the present invention;
fig. 3 shows a water flow field diagram after improvement measures of the 'a permeable navigation wall for being combined with a diversion drainage channel' of the present invention.
In the figure, 1 is a water diversion canal gate; 2, a bottom permeable flow-isolating wall; 3, the maximum draft; 4 water diversion drainage channels.
Detailed Description
The embodiments are described below in conjunction with the accompanying drawings and the present invention is described in detail.
Example one
A certain avionic hub is a water resource comprehensive utilization hub project which mainly takes shipping as a main part and combines power generation and other benefits. The existing front ship lock is arranged on the right bank of the hub, and the size of the ship lock mainly comprises an upstream approach channel, an upper lock head, a lock chamber, a lower lock head and a downstream approach channel. The arrangement mode of the approach channels is antisymmetric, the upstream approach channel expands towards the left side single side, and the downstream approach channel expands towards the right side single side; in order to meet the requirement of shipping development, a two-line ship lock is expanded on the right side of a one-line ship lock, an upper lock head is flush with the upstream end of an upper lock head of the one-line ship lock, the center lines of the two-line ship lock and the upper lock head are separated by 125m from each other on the upstream surface of the upper lock head, and the two-line ship lock shares part of a pilot channel entrance door area in the ship lock dimension, and the layout is shown as figure 1.
A empty navigation wall top elevation H that is used for jointly arranging with drainage canal that divides is 45m higher than ship lock operation highest navigation water level Wmax44.5; the top elevation K of the water permeable hole at the bottom is 10.5m lower than the lowest navigation water level W of the ship lockmin15m and the water level of the maximum draught D of the ship is 4m when the maximum draught D is less than the lowest navigation water level. Namely:
H＝45>Wmax＝44.5；K＝10.5<Wmin-D＝15-4
wherein: h is the height of the top of the flow-isolating navigation wall in unit m; wmaxThe highest navigation water level for the ship lock to run is unit m; k is water permeation at the bottom of the flow partition wallHole top elevation in m; wminThe lowest navigation water level of the ship lock is unit m; d is the maximum draft of the designed ship in unit m;
the bottom water permeable holes of the bottom hollow navigation wall are arranged side by side in an equidistant mode, and the distance is 7 m;
the water diversion drainage channel is consistent with the elevation of the bottom of the navigation channel of the ship lock, and the width B of the single water permeable hole, which is 3-6 times of the width B, is 7;
B≈(3～6)×b＝40m
wherein: b is the width of the water diversion and drainage channel in m; and b is the width of the water permeable hole at the bottom of the flow-isolating navigation wall in the unit of m.
The total width of the separation flow navigation wall is 7m multiplied by 11 which is 77m, and is larger than the total width 64m of the approach path.
Claims (3)
1. A empty navigation wall that is used for jointly arranging with diversion drainage channel, its characterized in that: the basic design parameters of the hollow navigation wall are as follows:
the height H of the top of the transparent navigation wall is higher than the highest navigation water level W of the ship lockmax；
The top elevation K of the permeable hole at the bottom is lower than the lowest navigation water level W of the ship lockminAnd is less than the water level of the ship at the maximum draft D when the lowest navigation water level is reached; namely:
H>Wmax；K<Wmin-D
wherein: h is the height of the top of the flow-isolating navigation wall in unit m; wmaxThe highest navigation water level for the ship lock to run is unit m; k is the height of the top of the water permeable hole at the bottom of the flow partition wall in the unit of m; wminThe lowest navigation water level of the ship lock is unit m; d is the maximum draft of the designed ship in unit m.
2. The permeable navigation wall for use in association with a diversion canal according to claim 1, wherein: the bottom water permeable holes of the hollow navigation wall are arranged side by side in an equidistant mode.
3. The permeable navigation wall for use in association with a diversion canal according to claim 1, wherein: the total width of the bottom water permeable holes is not less than the width of the navigation channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021925243.3U CN213417742U (en) | 2020-09-04 | 2020-09-04 | A empty navigation wall that passes through for jointly arranging with drainage canal divides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021925243.3U CN213417742U (en) | 2020-09-04 | 2020-09-04 | A empty navigation wall that passes through for jointly arranging with drainage canal divides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213417742U true CN213417742U (en) | 2021-06-11 |
Family
ID=76260231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021925243.3U Active CN213417742U (en) | 2020-09-04 | 2020-09-04 | A empty navigation wall that passes through for jointly arranging with drainage canal divides |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213417742U (en) |
-
2020
- 2020-09-04 CN CN202021925243.3U patent/CN213417742U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201526037U (en) | Wide tail pier falling-sill bottom-flow energy dissipation structure | |
| CN206591500U (en) | A kind of laterally-graded rectifier type stiling basin for river course of turning | |
| CN112030886B (en) | Diversion channel arrangement method combining diversion channel with bottom transparent navigation wall | |
| CN109778800B (en) | Gradual change falls sill type stilling basin | |
| CN213417742U (en) | A empty navigation wall that passes through for jointly arranging with drainage canal divides | |
| CN106930199A (en) | Improve the fairing of arc Box-shaped Drainage Culvert water outlet fluidised form | |
| CN207193884U (en) | A kind of bottom permeable isolated niche for ship lock entrance area at approach channel | |
| CN212742448U (en) | Two diversion tunnel export dissipation structure | |
| CN101139829A (en) | Flow guiding engineering for river gate dam and spillway | |
| CN209114453U (en) | A kind of fabricated structure for navigation through the gap flow condition | |
| CN115419006B (en) | Method for improving water quality of junction area of polluted tributaries and wide shallow river | |
| CN213417741U (en) | Arrange at terminal drainage canal that divides of empty navigation wall | |
| CN214245623U (en) | Aeration facility combining dovetail ridge and wedge-shaped groove | |
| CN111101478A (en) | Flow guide screen, combined structure for reducing flow velocity of lock gate area of ship and method thereof | |
| CN106638504A (en) | Energy dissipation and erosion control structure used for energy dissipation by bottom flow and used in water conservancy project | |
| CN211690175U (en) | Combined structure of diversion screen and applied this diversion screen to reduce ship lock mouth door district velocity of flow | |
| CN208151985U (en) | Sluice " L " type trash rack pier and its " zigzag " arragement construction | |
| CN109083107B (en) | Aeration facility for forming aeration cavity by utilizing water flow centripetal force inertia turbulence | |
| CN207109722U (en) | A kind of pumping plant water outlet is confluxed cell structure | |
| CN109594533B (en) | Vortex chamber stilling pool | |
| CN211421064U (en) | River bank spillway | |
| CN209429047U (en) | The water discharge tunnel makeup of the imports for ditch water process | |
| CN102286962A (en) | Structure for improving water and sand condition of lock gate recess | |
| CN210086195U (en) | Shaft type tail canal of hydropower station | |
| CN103422476A (en) | Multi-channel aeration facility with front oblique tail pier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |