CN105421288A - Large reservoir disc reservoir silt beach sand flushing structure and construction method thereof - Google Patents
Large reservoir disc reservoir silt beach sand flushing structure and construction method thereof Download PDFInfo
- Publication number
- CN105421288A CN105421288A CN201510807997.6A CN201510807997A CN105421288A CN 105421288 A CN105421288 A CN 105421288A CN 201510807997 A CN201510807997 A CN 201510807997A CN 105421288 A CN105421288 A CN 105421288A
- Authority
- CN
- China
- Prior art keywords
- reservoir
- building
- afflux groove
- silt
- conveyance structure
- 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.)
- Pending
Links
- 239000004576 sand Substances 0.000 title claims abstract description 28
- 238000010276 construction Methods 0.000 title claims abstract description 9
- 238000011010 flushing procedure Methods 0.000 title abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 230000003628 erosive effect Effects 0.000 claims abstract description 7
- 238000009412 basement excavation Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 230000008021 deposition Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000004062 sedimentation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000009991 scouring Methods 0.000 abstract 1
- 239000002689 soil Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 235000013527 bean curd Nutrition 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
- E02B3/023—Removing sediments
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Sewage (AREA)
Abstract
The invention discloses a silt flushing structure of a large reservoir disc reservoir and a construction method thereof, wherein the silt flushing structure comprises a dam, a branch flow port, a main groove arranged between the dam and the branch flow port, a water delivery building and a silt beach, wherein a temporary water retaining building is arranged at the branch flow port of a reservoir area, and the water delivery building is arranged along the direction of the main groove along the periphery of the reservoir; a plurality of collecting grooves are arranged along the axial direction of the water delivery building; the construction method comprises the following steps: (1) building a temporary water retaining building; (2) arranging a water delivery building; (3) excavating a collecting groove; (4) draining water and flushing sand; (5) and (5) dismantling the temporary water retaining building. The invention breaks away and conveys the silt by depending on water flow scouring and gravity erosion, does not need external power, and simultaneously avoids the problems of high cost and high pollution of mechanical dredging; the method can effectively reduce reservoir sedimentation, and has important significance for giving play to economic and social benefits of the reservoir, protecting the environment of the reservoir area, maintaining the functions of the reservoir and the like.
Description
Technical field
The invention belongs to Hydraulic and Hydro-Power Engineering reservoir sand drained technical field, relate to reservoir silt beach sand surfing technology, especially relate to a kind of large storehouse dish reservoir silt beach sand surfing structure and construction method thereof.
Background technology
At present, in the work of reservoir sand drained, reservoir sedimentation beach is generally arranged in reservoir, tail storehouse section, occupies reservoir effective storage for a long time, is formed by the deposition of bed load in flood and suspended load, consolidation.Therefore be difficult to gather effect by storing the adjustment of arranging clearly the reservoir operation mode such as muddy, discharging by density current, also sand-flash effect is undesirable to adopt the conventional engineering measure process such as sluice vibration, headcut scour.According to mechanical desilting, the easy polluted-water of sand grain of mechanical oil smoke and mechanical agitation on the one hand, the reservoir impact some being born to urban water supply task is larger; On the other hand, it is difficult that mechanical desilting costly, shoal materials is stacked.Therefore existing reservoir silt beach sand surfing structure and sand drained measure desirable not enough, await perfect further.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of large storehouse dish reservoir silt beach sand surfing structure and construction method thereof.By arranging conveyance structure and afflux groove on silt beach, planned distribution and guiding water flow to surface, silt beach, utilize beach high groove depth, transverse gradient is larger, The turbulent river crashes its way through, and violent scour and incision occur, and causes the alluvial soil body of afflux groove both sides to cave under gravity, thus make a large amount of mud introduce major trough with walk with current, and get rid of outside storehouse.
The present invention is achieved by following technical solution.
A kind of large storehouse dish reservoir silt beach sand surfing structure, comprise dam, tributary inlet and be arranged at the major trough, conveyance structure and the Yu Tan that draw together between dam and tributary inlet, be furnished with temporary water dash building at the tributary inlet place importing reservoir area, described conveyance structure is arranged along storehouse week along major trough direction; Some afflux grooves are being provided with along on conveyance structure axis direction.
Described conveyance structure is by silt beach excavation channel or adopt aqueduct laying to form.
Described afflux groove excavates formation on silt beach, and every bar afflux groove becomes to be arranged in parallel.
Described conveyance structure is arranged along being parallel to major trough storehouse week.
Described conveyance structure and afflux groove are trapezoidal cross-section.
A construction method for large storehouse dish reservoir silt beach sand surfing structure, concrete grammar step is as follows:
(1) temporary water dash building is built: import mouth in reservoir area and build temporary water dash building, for ease of gathering materials on the spot, local material dam structure selected by temporary water dash building;
(2) arrange conveyance structure: arrange conveyance structure along being parallel to major trough or water (flow) direction storehouse week, conveyance structure according to channel, section selection trapezoidal cross-section, cross dimensions depends on into beach flow, should be limited to fit into beach current; According to aqueduct, it arranges that elevation, length, caliber, single-unit length, pipe material should be determined by elevation computation and test;
(3) afflux groove is excavated: along being orthogonal to major trough or water (flow) direction excavation afflux groove, the section of afflux groove is identical with the canal cross section of conveyance structure;
(4) discharge water sand surfing: profoundly widen workbench until a upper afflux groove and complete thoroughly, start next afflux groove and make groove work;
(5) remove temporary water dash building: after erosion and deposition, remove temporary water dash building.
The excavation of described conveyance structure channel and afflux groove all carries out on silt beach.
Described afflux groove excavation inverse major trough direction or water (flow) direction should excavate from dam.
The invention has the beneficial effects as follows:
Compared with prior art, the present invention comes brokenly, from, sediment, not need additionaling power, avoid the high cost of mechanical desilting, high pollution problem simultaneously by relying on current scour and mass erosion, has environmental protection, economy, the feature such as efficient.The present invention effectively can reduce reservoir sedimentation, and to performance reservoir economic and social benefit, protection Reservoir region environment, maintains the aspects such as reservoir function significant.Can in Hydraulic and Hydro-Power Engineering reservoir sand drained technical field wide popularization and application.
Accompanying drawing explanation
Fig. 1 is plan structure schematic diagram of the present invention;
Fig. 2 is cross-sectional configuration schematic diagram of the present invention;
Fig. 3 is the section structure schematic diagram of conveyance structure in the present invention.
In figure: 1-major trough, 2-conveyance structure, 3-afflux groove, 4-temporary water dash building, 5-dam, 6-silt beach, 7-tributary inlet.
Detailed description of the invention
Technical scheme of the present invention is further described below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
As shown in Figure 1 to Figure 3, a kind of large storehouse dish reservoir silt beach sand surfing structure, comprise dam 5, tributary inlet 7 and be arranged at and draw together major trough 1 between dam 5 and tributary inlet 7, conveyance structure 2 and silt beach 6, be furnished with temporary water dash building 4 at tributary inlet 7 place importing reservoir area, described conveyance structure 2 is arranged along storehouse week along major trough 1 direction; Some afflux grooves 3 are being provided with along on conveyance structure 2 axis direction.
Described conveyance structure 2 is excavated channel by silt beach 6 or is adopted aqueduct to lay and forms.
Described afflux groove 3 excavates formation on silt beach 6, and every bar afflux groove 3 one-tenth is arranged in parallel.When excavating, the spacing of afflux groove 3 is advisable with 10 ~ 30m, in order to avoid form Gu Tan because erosion and deposition is not in place.Described conveyance structure 2 (channel), afflux groove 3 are when constructing, and should choose the build being convenient to excavate, as trapezoidal cross-section etc., cross dimensions depends on into beach flow, should be limited to fit into beach current.The layout elevation of described conveyance structure 2, length, caliber, single-unit length, pipe material should be determined by elevation computation and test.
Described afflux groove 3 excavate should from dam 5 against the current flow path direction carry out, profoundly widen workbench until a upper afflux groove 3 and complete thoroughly, just allow next afflux groove 3 of beginning to make groove work.
Described conveyance structure 2 is arranged along being parallel to major trough 1 storehouse week.
As shown in Figure 1 to Figure 3, the construction method step of large storehouse dish reservoir silt beach sand surfing structure of the present invention is as follows:
(1) temporary water dash building is built: import mouth in reservoir area and build temporary water dash building 4, for ease of gathering materials on the spot, local material dam structure selected by temporary water dash building 4;
(2) conveyance structure is arranged: along being parallel to major trough 1 or water (flow) direction layout conveyance structure 2 storehouse week, conveyance structure 2 is according to channel, and section is preferably trapezoidal cross-section, and cross dimensions depends on into beach flow, should be limited to fit into beach current; According to aqueduct, it arranges that elevation, length, caliber, single-unit length, pipe material should be determined by elevation computation and test;
(3) afflux groove is excavated: along being orthogonal to major trough 1 or water (flow) direction excavation afflux groove 3, the section of afflux groove 3 is identical with the canal cross section of conveyance structure 2; Afflux groove 3 excavates and inverse major trough 1 direction or water (flow) direction should carry out from dam;
(4) discharge water sand surfing: profoundly widen workbench until a upper afflux groove 3 and complete thoroughly, start next afflux groove 3 and make groove work;
(5) remove temporary water dash building: after erosion and deposition, remove temporary water dash building 4.
The excavation of described conveyance structure 2 channel and afflux groove 3 all carries out on silt beach 6.
Described conveyance structure 2, afflux groove 3 should choose the build being convenient to excavate as far as possible, and as trapezoidal cross-section etc., cross dimensions depends on into beach flow, should be limited to fit into beach current.
At summer, Qiu Liangji, reservoir is often in low water level operation or natural flood discharge state, and reservoir silt beach 6 appears, for implementing the opportune time of the present invention.As shown in Figure 1 to Figure 3, when implementing, first arrange temporary water dash building 4 in entrance, reservoir area, so that water conservation.On the silt beach 6 appeared, major trough 1 is roughly parallel to or water (flow) direction 7 arranges conveyance structure 2 along storehouse week, conveyance structure 2 generally adopts channel or aqueduct, canal cross section is recommended as trapezoidal cross-section, cross dimensions guarantees accommodation and quotes Wash flow, the excavation slope of conveyance structure 2 channel suitably slows down, and excavation slope adopts 1:1 than preferentially, is beneficial to the stability of slope of conveyance structure 2 channel.Afflux groove 3, for preventing current cross flow and reduce and rush beach effect and excavate on beach face after conveyance structure 2 releases, generally should excavate afflux groove 3 in advance on the silt beach 6 of storehouse to be rushed section.Afflux groove 3 arranges that afflux groove 3 section selection principle is with conveyance structure 2 along being roughly orthogonal to major trough 1 or water (flow) direction 7.Afflux groove 3 spacing is selected according to the length etc. of reservoir inflow and afflux groove 3, unsuitable excessive, otherwise often forms Gu Tan because erosion and deposition is not in place.Article 1, afflux groove 3 should select silt beach 6 near head side, storehouse, and remaining set chute 3 progressively carries out against major trough 1 direction or water (flow) direction.On conveyance structure 2, excavate discharge opening or open gate valve, discharge water sand surfing, and complete thoroughly until afflux groove 3 profoundly widens workbench, shutoff this section of conveyance structure 2 discharge opening or closing gate valve, start next afflux groove 3 and make groove work.
When Wash flow enters beach by conveyance structure 2, because of beach high groove depth, transverse gradient is larger, The turbulent river crashes its way through, there is violent scour and incision, cause the silt soil body of afflux groove 3 both sides to cave under gravity, a large amount of mud and walk are entered major trough 1 with Wash flow and are got rid of outside storehouse by reservoir emptying building.As shown in Figure 2, conveyance structure 2 sluices and rushes beach, first falls from beach face ratio and washes away by gradual steep place (in figure 2 in G-H shown in), propelling of tracing to the source from bottom to top.Simultaneously, due to by the silt soil that rushes for layer structure, and every layer of silt soil is from top to bottom, and its grain diameter is from fine to coarse, the characteristic distributions that dry density is descending, at every face place layer by layer, particle diameter is thin, and viscosity is large, be difficult to wash away, therefore, show as and fall bank shape and cut bean curd formula and wash away (as Suo Shi F-M, E-M in Fig. 2).
Claims (8)
1. a large storehouse dish reservoir silt beach sand surfing structure, it is characterized in that: comprise dam (5), tributary inlet (7) and be arranged at and draw together major trough (1) between dam (5) and tributary inlet (7), conveyance structure (2) and silt beach (6), be furnished with temporary water dash building (4) at tributary inlet (7) place importing reservoir area, described conveyance structure (2) is arranged along storehouse week along major trough (1) direction; Some afflux grooves (3) are being provided with along on conveyance structure (2) axis direction.
2. one according to claim 1 large storehouse dish reservoir silt beach sand surfing structure, is characterized in that: described conveyance structure (2) is by silt beach (6) excavation channel or adopt aqueduct laying to form.
3. one according to claim 1 large storehouse dish reservoir silt beach sand surfing structure, it is characterized in that: described afflux groove (3) excavates formation on Yu Tan (6), and every bar afflux groove (3) becomes to be arranged in parallel.
4. one according to claim 1 large storehouse dish reservoir silt beach sand surfing structure, is characterized in that: described conveyance structure (2) is arranged along being parallel to major trough (1) storehouse week.
5. one according to claim 1 large storehouse dish reservoir silt beach sand surfing structure, is characterized in that: described conveyance structure (2) and afflux groove (3) are trapezoidal cross-section.
6. a construction method for the large storehouse dish reservoir silt beach sand surfing structure as described in claim 1 to 5 any one, is characterized in that: concrete grammar step is as follows:
(1) temporary water dash building is built: import mouth in reservoir area and build temporary water dash building (4), for ease of gathering materials on the spot, local material dam structure selected by temporary water dash building (4);
(2) conveyance structure is arranged: along being parallel to major trough (1) or water (flow) direction layout conveyance structure (2) storehouse week, conveyance structure (2) is according to channel, section selection trapezoidal cross-section, cross dimensions depends on into beach flow, should be limited to fit into beach current; According to aqueduct, it arranges that elevation, length, caliber, single-unit length, pipe material should be determined by elevation computation and test;
(3) afflux groove is excavated: along being orthogonal to major trough (1) or water (flow) direction excavation afflux groove (3), the section of afflux groove (3) is identical with the canal cross section of conveyance structure (2);
(4) discharge water sand surfing: profoundly widen workbench until a upper afflux groove (3) and complete thoroughly, start next afflux groove (3) and make groove work;
(5) remove temporary water dash building: after erosion and deposition, remove temporary water dash building (4).
7. one according to claim 6 large storehouse dish reservoir silt beach sand surfing structure, is characterized in that: the excavation of described conveyance structure (2) channel and afflux groove (3) all carries out on Yu Tan (6).
8. one according to claim 6 large storehouse dish reservoir silt beach sand surfing structure, is characterized in that: described afflux groove (3) excavation inverse major trough (1) direction or water (flow) direction should excavate from dam (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510807997.6A CN105421288A (en) | 2015-11-20 | 2015-11-20 | Large reservoir disc reservoir silt beach sand flushing structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510807997.6A CN105421288A (en) | 2015-11-20 | 2015-11-20 | Large reservoir disc reservoir silt beach sand flushing structure and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105421288A true CN105421288A (en) | 2016-03-23 |
Family
ID=55499801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510807997.6A Pending CN105421288A (en) | 2015-11-20 | 2015-11-20 | Large reservoir disc reservoir silt beach sand flushing structure and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105421288A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839586A (en) * | 2016-03-31 | 2016-08-10 | 马向前 | Silt reduction and removal facility for reservoir and operation method of silt reduction and removal facility |
| CN112982274A (en) * | 2021-03-02 | 2021-06-18 | 黄河勘测规划设计研究院有限公司 | Desilting method for restoring reservoir sediment storage capacity by utilizing daily incoming water |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3638432A (en) * | 1969-04-28 | 1972-02-01 | Townsend L Schoonmaker | Stationary dredging apparatus |
| CN104153320A (en) * | 2014-07-24 | 2014-11-19 | 重庆交通大学 | Method for regulating pebble shoal in intensified low-flow branching layout |
| CN104358230A (en) * | 2014-07-09 | 2015-02-18 | 广州中国科学院工业技术研究院 | Slit preventing and desilting device and method for harbor basin |
| CN104452656A (en) * | 2014-11-26 | 2015-03-25 | 禹顺生态建设有限公司 | River channel segmental desilting construction method |
| CN205134266U (en) * | 2015-11-20 | 2016-04-06 | 中国电建集团贵阳勘测设计研究院有限公司 | Large reservoir plate reservoir silt beach sand washing structure |
-
2015
- 2015-11-20 CN CN201510807997.6A patent/CN105421288A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3638432A (en) * | 1969-04-28 | 1972-02-01 | Townsend L Schoonmaker | Stationary dredging apparatus |
| CN104358230A (en) * | 2014-07-09 | 2015-02-18 | 广州中国科学院工业技术研究院 | Slit preventing and desilting device and method for harbor basin |
| CN104153320A (en) * | 2014-07-24 | 2014-11-19 | 重庆交通大学 | Method for regulating pebble shoal in intensified low-flow branching layout |
| CN104452656A (en) * | 2014-11-26 | 2015-03-25 | 禹顺生态建设有限公司 | River channel segmental desilting construction method |
| CN205134266U (en) * | 2015-11-20 | 2016-04-06 | 中国电建集团贵阳勘测设计研究院有限公司 | Large reservoir plate reservoir silt beach sand washing structure |
Non-Patent Citations (1)
| Title |
|---|
| 谢鉴衡: "《河床演变及整治》", 30 October 2013 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839586A (en) * | 2016-03-31 | 2016-08-10 | 马向前 | Silt reduction and removal facility for reservoir and operation method of silt reduction and removal facility |
| CN112982274A (en) * | 2021-03-02 | 2021-06-18 | 黄河勘测规划设计研究院有限公司 | Desilting method for restoring reservoir sediment storage capacity by utilizing daily incoming water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106759066B (en) | A kind of method of mountain area side slope water conservancy diversion energy dissipating prevention and control geological disaster | |
| WO2014201742A1 (en) | Debris flow drainage trough planning and designing method and application thereof | |
| CN103866774B (en) | For bank protection and the ditch pipe network protection body collapsing the solid soil of hilllock draining | |
| CN207376562U (en) | A kind of key water control project that can filter silt | |
| CN104088250A (en) | Mudslide preventing and controlling method based on mudslide forming mode | |
| CN107761670A (en) | Stockyard dischargeable capacity method for optimally controlling based on the control of dredged mud original state | |
| CN203782664U (en) | Anti-scour structure of sandy foundation water gate | |
| CN106192871A (en) | Protection arrangement for debris flow gully | |
| CN107119624A (en) | The countermeasure system and implementation of large-scale Dumping Sites in a kind of debris flow gully | |
| CN207392122U (en) | It is a kind of that there is the key water control project of desilting | |
| Boes et al. | Design, operation and morphological effects of bypass tunnels as a sediment routing technique | |
| CN102767155A (en) | Reservoir dredging pipe system and layout method thereof | |
| CN105421288A (en) | Large reservoir disc reservoir silt beach sand flushing structure and construction method thereof | |
| CN207228038U (en) | The countermeasure system of large-scale Dumping Sites in a kind of debris flow gully | |
| Auel et al. | Sustainable reservoir management using sediment bypass tunnels | |
| CN108547251A (en) | A kind of method that dredging is dug in water conservancy punching | |
| CN203755322U (en) | Channel pipe network guarded body used for slope protection and drainage and soil fixation of slope collapse | |
| CN105064291A (en) | Step sand-blocking dam ecosystem for reservoir desilting and sand prevention | |
| CN205134266U (en) | Large reservoir plate reservoir silt beach sand washing structure | |
| JPH10266171A (en) | Method of sand and sludge discharge system for reservoir and basin, and sand and sludge discharge system equipment for reservoir and basin | |
| Boroujeni | Sediment management in hydropower dam (case study–Dez dam project) | |
| CN204051097U (en) | A kind of groove dam formula riffler and adopt husky system | |
| CN207392146U (en) | A kind of key water control project with filtering function | |
| CN205999865U (en) | A kind of sediment trapping bank structure | |
| CN108442310B (en) | Urban inland river water sludging method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160323 |
|
| RJ01 | Rejection of invention patent application after publication |