CN105568923B - The flood diversion pipe band group of dykes and dams super standard flood - Google Patents
The flood diversion pipe band group of dykes and dams super standard flood Download PDFInfo
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- CN105568923B CN105568923B CN201610111308.2A CN201610111308A CN105568923B CN 105568923 B CN105568923 B CN 105568923B CN 201610111308 A CN201610111308 A CN 201610111308A CN 105568923 B CN105568923 B CN 105568923B
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- flood
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
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Abstract
The flood diversion pipe band group of dykes and dams super standard flood, belongs to dykes and dams flood diversion hydraulic engineering technical field.When super standard flood is run into, can flood diversion prevent dyke not burst；And the production of simple structure, modular in design, convenient transportation, build quick, low cost.Including import hafnium U-type groove, cage trash rack, HDPE flap valves, flood diversion pipe shaft, outlet hafnium U-type groove, the Flexible water pipe of rigid backbone synthetic material, the protection-apron of geosynthetics, sandbag baffle wall style, colour bar cloth sandbag erosion control section, the flood diversion pipe shaft of identical caliber is equidistantly arranged in juxtaposition together with the Flexible water pipe of rigid backbone synthetic material, and the flood diversion pipe band group of same flood diversion point is constituted on demand.The flood diversion nest of tubes is along two sides dispersed placement, can be to the farmland temporary controllable flood diversion in any place, do not occupy cultivated land forever, without special detention basin, avoid concentrating flood diversion to bring extinction, avoid the flood fighting of high investment all fronts, dismantled and assembled, combined flood diversion pipe band group when flood-fighting needs flood diversion can fast assembling, use convenient management.
Description
Technical field
The invention belongs to dykes and dams flood diversion hydraulic engineering technical field, and in particular to a kind of flood diversion pipe of dykes and dams super standard flood
Band group.
Background technology
Flood diversion (flood discharge) building form has flood-diversion sluice, crosses water and soil dam, buried penstock under dam, vertical shaft type on sub-bottom changes at present
Spillway, siphon spillways and flood diversion of artificially breaching a dyke.On relatively low river dyke, because upstream and downstream head difference is smaller, rainbow
Suction spillway pressure stream advantage is not obvious.Siphon spillways section must be increased in order to reach corresponding flood diversion amount, cost also must be high,
In addition flood diversion amount is directly proportional to 1/2 power of acting head H, and the super ability of letting out of chance super standard flood is low, should not select；Buried under dam
Pipe, shaft spillway there is also to surpass lets out the shortcoming that ability is low, cost is high, should not select；The water and soil excessively of armored concrete revetment
Dam, for relatively low dykes and dams, raises elevation of weir crest and was arranged to water and soil dam, and the small single width flood diversion limited flow of weir head must increase
Weir overall cost wide must be high, must set gate dash if reducing elevation of weir crest and increasing weir head and let out that groove is short, and it is approached
Flood diversion brake structure；Open type armored concrete flood-diversion sluice flood diversion amount is directly proportional to 3/2 power of weir head H, and energy is let out with super
Power, it is optimal selection at present.
But, the river dike with flood-diversion sluice, is not suitable for using small flood-diversion sluice dispersed placement at present, because Han Qu increases
Plus be cost retaining wall high, so being often centralized arrangement flood diversion in Han Qu, flood diversion is concentrated directly cannot divide to farmland
Flood, it is desirable to have suitable lake, bubble pool or low-lying land must build detention basin embankment as detention basin；To increase flood diversion stream
Amount reduces flood-diversion sluice cost, and flood-diversion sluice elevation of weir crest will arrange lower, with regard to the structure arrangement that basis of formation is buried, thus also
There is a problem of seepage failure hidden danger, freeze injury, aging；Flood-diversion sluice must be provided with fixed main gate must be needed with headstock gear
Bulkhead gate, service bridge and maintenance bridge are equipped with for this, because blocking traffic also needs to build access bridge if necessary, cost is high, and needs
Special messenger is wanted to conserve and management gate, headstock gear；Concentrating the flood-diversion sluice tail water of flood diversion needs the permanent floodway such as canal, ditch or river,
The not single cost of flood-diversion sluice, embankment engineering is high also for good and all to occupy substantial amounts of land resource；Build existing open type armored concrete
Flood-diversion sluice building cycle is long, can not be built temporarily during burst flood；And the probability of armored concrete flood-diversion sluice startup is low, once
Start flood diversion, lasting for flood diversion is short, and few using chance, the quantity that substantial amounts of river dike need to build flood-diversion sluice is too big, this is in warp
It is often also restrained in Ji.The rising suddenly and sharply of upstream mountain stream breaks, and to set flood-diversion sluice uneconomical in short distance river course, meets overproof
Flood must breach a dyke, and cost it is high flood-diversion sluice protection region value it is small should not also build flood-diversion sluice, the dike without flood-diversion sluice
It is anti-to run into the flood fighting of super standard flood all fronts, can only put into carried out along substantial amounts of personnel and build interim small dike's dash, with water level
Landing will also be removed in time, prevent female dike from coming down, and run into irresistible extraodinary flood and once burst, uncontrollable a large amount of
Flood is concentrated to gush out and wreaked havoc, and is suffered heavy losses, and such case happens occasionally, if artificially breaching a dyke flood diversion, uncontrollable concentration flood
The loss for causing also can be very big, and, once a vast expanse of water inside and outside breach dike, the not single cost of blocking up of at this moment fetching earth is high also not easy
Thing.
The content of the invention
It is an object of the invention to provide a kind of flood diversion pipe band group of dykes and dams super standard flood, when super standard flood is run into,
Can flood diversion prevent the unrestrained top of dykes and dams to burst；And after simple structure, flood diversion recover plough, do not occupy cultivated land forever, convenient transportation,
Build quick, flood diversion can be disperseed along two sides, using convenient management, low cost, can both replace the flood-diversion sluice for infrequently enabling also
The emergency measure of dykes and dams can be protected as flood season flood diversion.
Above-mentioned purpose is realized, the technical scheme that the present invention takes is as follows：
The flood diversion pipe band group of dykes and dams super standard flood of the invention, the flood diversion pipe band group includes several flood diversion pipe bands,
Described several flood diversion pipe bands include import hafnium U-type groove, cage trash rack, HDPE flap valves, flood diversion pipe shaft, outlet hafnium U-type groove,
The Flexible water pipe of rigid backbone synthetic material, the stiling basin protection-apron of two-stage geosynthetics, two-stage sandbag baffle wall style and coloured silk
Bar cloth sandbag erosion control section；
The stiling basin protection-apron of the two-stage geosynthetics be respectively one-level geosynthetics stiling basin protection-apron and
Two grades of stiling basin protection-aprons of geosynthetics, the two-stage sandbag baffle wall style is respectively one-level sandbag baffle wall style and two grades of sandbags
Baffle wall style, the cage trash rack is placed in import hafnium U-type groove, and the HDPE flap valves are placed in cage trash rack, HDPE
Flap valve is fixed on flood diversion pipe shaft entrance point, and the flood diversion pipe shaft is horizontally set on dykes and dams top, and flood diversion pipe shaft entrance point is located at
In import hafnium U-type groove and cage trash rack, the port of export of flood diversion pipe shaft is provided with outlet hafnium U-type groove, and the rigid backbone is manually closed
Arrival end into the Flexible water pipe of material is connected with the port of export of flood diversion pipe shaft 6, and the Flexible water pipe of rigid backbone synthetic material goes out
Mouth end is placed on the slope of the dykes and dams downstream and is arranged on the stiling basin protection-apron of one-level geosynthetics, the one-level geotechnique
The stiling basin protection-apron of synthetic material is laid on beach or field, and the stiling basin protection-apron upstream end of one-level geosynthetics is placed
On the slope of dykes and dams downstream, the stiling basin protection-apron downstream of one-level geosynthetics is connected with one-level sandbag baffle wall style, and described two
The stiling basin protection-apron upstream of level geosynthetics is connected with one-level sandbag baffle wall style, two grades of stiling basin shields of geosynthetics
Flat to be layered on beach or field, two grades of stiling basin protection-apron downstreams of geosynthetics are connected with two grades of sandbag baffle wall styles, institute
State colour bar cloth sandbag erosion control section to be laid on beach or field, colour bar cloth sandbag erosion control section upstream end and two grades of sandbag baffle wall style phases
Even, the one-level sandbag baffle wall style is disposed adjacent with the Flexible water pipe of rigid backbone synthetic material, in the flood diversion pipe band group
All flood diversion pipe shafts be equidistantly set up in parallel, flood diversion pipe band group in all rigid backbone synthetic materials Flexible water pipe
It is equally spaced side by side.
The present invention is relative to the beneficial effect of prior art：
For the existing armored concrete flood-diversion sluice construction period for infrequently enabling it is long, cost is high, flood diversion is concentrated, permanent
Occupy cultivated land, and it also requires the characteristics of strict detention basin condition is limited and the dyke all fronts flood fighting without flood-diversion sluice and breach can not
The characteristics of control, the flood diversion pipe band group of dykes and dams super standard flood is invented；When super standard flood is run into, using technology of the invention
Scheme can controllable flood diversion, prevent dyke not burst.Additionally, the present invention also has and not occupying cultivated land forever, dispersibling flood diversion, knot
Structure is simple, modular in design and production, convenient transportation, build it is quick, using convenient management, low cost the characteristics of, it is adaptable to it is any
The controllable flood diversion in place, is also applied in flood-fighting.Above-mentioned beneficial effect is in particular in：
1st, by flood diversion inner cavity of tube body diameter so as to limit flood diversion pipe shaft flood diversion flow.Flood diversion pipe shaft and rigid bone
The Flexible water pipe of frame synthetic material forms pressure flow and increases flood diversion amount, reduces flood diversion pipe shaft caliber, can reduce flood diversion pipe shaft
Quantities.
2nd, cage trash rack ensures that the Flexible water pipe and geosynthetics of rigid backbone synthetic material cross water security,
Increase the Flexible water pipe of cheap rigid backbone synthetic material, geosynthetics influences unobvious to overall cost.
3rd, flood diversion pipe shaft is arranged in dykes and dams top, and the length of flood diversion pipe shaft is short, and increased is cheap rigid backbone
The Flexible water pipe of synthetic material, not single low cost and construction easily, increase flood diversion pipe shaft and the artificial synthesized material of rigid backbone
The Flexible water pipe quantity of material, the shorter flood diversion pipe shaft quantities increase of pipe with small pipe diameter, length is not obvious, multiple any group on demand to set
Splitting or integrating spreads the Flexible water pipe offer condition for putting flood diversion pipe shaft and rigid backbone synthetic material, is also to be carried using HDPE flap valves
For condition, traffic is not influenceed in flood diversion pipe shaft embedment dykes and dams, the dykes and dams to there is traffic requirement greatly reduce cost.
4th, installed in the HDPE flap valve flood diversions of flood diversion pipe shaft entrance point, because the HDPE flap valve depth of waters are small, break down
It is easily processed, bulkhead gate and maintenance bridge can not be set, because hoisting capacity is small, manpower can be with pull-up and closing HDPE flap valve, nothing
Need headstock gear also just without building service bridge, greatly reduce construction costs, using convenient management, could be used without the lightweight of recovery value
HDPE flap valves low cost is again antitheft, transport when speedily carrying out rescue work, interim set up convenient.
5th, the Flexible water pipe of rigid backbone synthetic material delivers water to downstream stiling basin instead of hafnium pipe；Dissipation and scouring is adopted
Protection-apron is done with geosynthetics.The Flexible water pipe of rigid backbone synthetic material, geosynthetics are removed after the flood diversion phase
Recover arable land.By cage trash rack, HDPE flap valves, flood diversion pipe shaft, rigid backbone synthetic material Flexible water pipe and soil
Geosynthetics interdepend and constitute the new structure arrangement of dissipation and scouring；Form dismantled and assembled, combined new flood diversion building
Thing；So the present invention is achieved that using light-duty material convenient transportation, tears down and build fast, without fixed gate, without headstock gear, non-flood diversion
Phase unattended maintenance, without freeze injury, without hidden danger, do not occupy forever arable land, dispersible it is combined, can the flood diversion of steering farmland, cost
Low target；Also achieve do not possess build flood-diversion sluice or the dykes and dams without flood-diversion sluice can also controllable flood diversion protect the mesh of dykes and dams
Mark；The present invention can both replace the flood-diversion sluice for infrequently enabling to be also used as the emergency measure that dykes and dams are protected in flood season flood diversion；This hair
The flood diversion form of bright combination of materials, structural arrangement form, dismounting with the strategic structural of associativity on existing sub-bottom changes.
5th, the present invention colour bar cloth, the Flexible water pipe of rigid backbone synthetic material, geosynthetics and Pe, Pvc or
Flood diversion pipe shaft and colour bar cloth sandbag the erosion control section of Pp materials are applied on the flood diversion building of dykes and dams super standard flood, due to dike
Several years of the return period of dam flood diversion, several days to tens days each flood diversion time was short by the sunshine-duration, and these materials will not to decades
Generation is aging, intensity changes, and these materials can be reused.
6th, flood diversion pipe band group of the invention, composition flood diversion pipe band group is laid by the flood diversion pipe band of the calibers such as multiple side by side, with
The need for meeting total score mighty torrent amount, multiple flood diversion pipe bands are combined on demand, equidistant dispersed placement, reach limitation discharge per unit width purpose,
Energy dissipating easily, make using geosynthetics carry out dissipation and scouring and to the interim flood diversion in farmland forever do not occupy arable land turn into can
OK, speedily carrying out rescue work can also solve flood diversion pipe shaft and the artificial synthesized material of rigid backbone with live quick assembling by increasing pipe band quantity
The Flexible water pipe pressure flow of material surpasses the low problem of the ability of letting out.Flood diversion pipe band group can dispersible arrangement along two sides, and it is increased only
The geosynthetics of dissipation and scouring avris, very little to cost influence, breaking through existing flood diversion needs the limit of special detention basin
System, and both realized do not occupied cultivated land forever to the interim flood diversion in farmland, the controllable flood diversion in any place and dispersion flood diversion target,
Concentration flood diversion is also avoid simultaneously and brings extinction, so as to avoid all fronts flood fighting.To sum up, the present invention by combination of materials,
New structure arranges that dismantled and assembled, the combined new flood diversion building of formation protects dykes and dams for flood-fighting flood diversion.
" super standard flood " of the present invention refers to more than dykes and dams check flood for reaching the dykes and dams of planning and designing standard
The standard of water, the dykes and dams for being not up to planning and designing standard refer to more than its existing highest standard of flood.The present invention relates to
" dykes and dams " for below 10m river dike or ditch head dam across a river.The rivers being related to are that non-mountain area is risen suddenly and sharply river.
Brief description of the drawings
Fig. 1 is the front view of the flood diversion pipe band group of dykes and dams super standard flood of the invention；
Fig. 2 is partial enlarged drawing at the A of Fig. 1；
Fig. 3 is partial enlarged drawing at the B of Fig. 1；
Fig. 4 is the top view of Fig. 1.
Wherein, dykes and dams 1, small dike 2, import hafnium U-type groove 3, cage trash rack 4, HDPE flap valves 5, flood diversion pipe shaft 6, outlet hafnium U
Type groove 7, the Flexible water pipe 8 of rigid backbone synthetic material, the stiling basin protection-apron 9-1 of one-level geosynthetics, two grades of geotechniques
The stiling basin protection-apron 9-2 of synthetic material, one-level sandbag baffle wall style 10-1, two grades of sandbag baffle wall style 10-2, colour bar cloth sandbag erosion controls
Section 11.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with the accompanying drawings and embodiment, it is right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the present invention, not
For limiting the present invention.
Specific embodiment one：As shown in Figure 1 to 4, the flood diversion pipe band group of the dykes and dams super standard flood of present embodiment,
The flood diversion pipe band group includes several flood diversion pipe bands, and described several flood diversion pipe bands are blocked including import hafnium U-type groove 3, cage
Dirty grid 4, HDPE flap valves 5, flood diversion pipe shaft 6, Flexible water pipe 8, the two-stage geotechnique of outlet hafnium U-type groove 7, rigid backbone synthetic material
The stiling basin protection-apron of synthetic material, two-stage sandbag baffle wall style and colour bar cloth sandbag erosion control section 11；
The stiling basin protection-apron of the two-stage geosynthetics is respectively the stiling basin protection-apron 9-1 of one-level geosynthetics
With two grades of stiling basin protection-apron 9-2 of geosynthetics, the two-stage sandbag baffle wall style is respectively one-level sandbag baffle wall style 10-1
With two grades of sandbag baffle wall style 10-2, the cage trash rack 4 is placed in import hafnium U-type groove 3, and the HDPE flap valves 5 are placed on
In cage trash rack 4, HDPE flap valves 5 are fixed on the entrance point of flood diversion pipe shaft 6, and the flood diversion pipe shaft 6 is horizontally set on dykes and dams 1
Portion, and the entrance point of flood diversion pipe shaft 6, in import hafnium U-type groove 3 with cage trash rack 4, the port of export of flood diversion pipe shaft 6 is provided with outlet
Hafnium U-type groove 7, the arrival end of the Flexible water pipe 8 of the rigid backbone synthetic material is connected with the port of export of flood diversion pipe shaft 6, rigidity
The port of export of the Flexible water pipe 8 of skeleton synthetic material is placed on the downstream slope of the dykes and dams 1 and is arranged in one-level geotechnique's synthesis
On the stiling basin protection-apron 9-1 of material, the stiling basin protection-apron 9-1 of the one-level geosynthetics is laid on beach or field,
The stiling basin protection-apron 9-1 upstream ends of one-level geosynthetics are placed on the downstream slope of dykes and dams 1, and one-level geosynthetics disappears
Power pond protection-apron 9-1 downstreams are connected with one-level sandbag baffle wall style 10-1, the stiling basin protection-apron 9-2 of two grades of geosynthetics
Upstream is connected with one-level sandbag baffle wall style 10-1, and the stiling basin protection-apron 9-2 of two grades of geosynthetics is laid in beach or field
On, two grades of stiling basin protection-apron 9-2 downstreams of geosynthetics are connected with two grades of sandbag baffle wall style 10-2, the colour bar cloth sandbag
Erosion control section 11 is laid on beach or field, and 11 upstream ends of colour bar cloth sandbag erosion control section are connected with two grades of sandbag baffle wall style 10-2,
The one-level sandbag baffle wall style 10-1 is disposed adjacent with the Flexible water pipe 8 of rigid backbone synthetic material, the flood diversion pipe band group
Interior all flood diversion pipe shafts 6 are equidistantly set up in parallel, flood diversion pipe band group in all rigid backbone synthetic materials it is defeated
Water band 8 is equally spaced side by side.
Specific embodiment two：As shown in Fig. 1 and Fig. 4, dykes and dams super standard flood described in specific embodiment one point
The intracavity diameter of Flexible water pipe 8 of big vast pipe band group, the flood diversion pipe shaft 6 and rigid backbone synthetic material uses following formula meters
Calculate：Formula one
Formula two
Formula three
In formula：D --- it is the intracavity diameter of Flexible water pipe 8 of flood diversion pipe shaft 6 or rigid backbone synthetic material, m；
Q --- it is flood diversion pipe band group's flow of flood diversion point, m3/s；
π --- it is pi；
μc--- it is the discharge coefficient of Flexible water pipe 8 of flood diversion pipe shaft 6 or rigid backbone synthetic material；
N --- it is the flood diversion pipe shaft 6 or the quantity of Flexible water pipe 8 of rigid backbone synthetic material of flood diversion pipe band group；
G --- it is acceleration of gravity, m2/s；
H、H0--- do not include approach velocity head and the acting head including approach velocity head respectively；
λ --- it is the frictional resistant coefficient of Flexible water pipe 8 of flood diversion pipe shaft 6 or rigid backbone synthetic material；
L --- for the Flexible water pipe 8 of flood diversion pipe shaft 6 or rigid backbone synthetic material calculates segment length, m；
∑ ζ --- for flood diversion pipe shaft 6 or rigid backbone synthetic material Flexible water pipe 8 calculate section in total losses coefficient it
With；
α --- it is kinetic energy correction factor；
V0--- it is approach velocity, m/s.
Specific embodiment three：As shown in Fig. 1 and Fig. 4, the dykes and dams super standard flood described in specific embodiment one or two
Flood diversion pipe band group, the spacing of every the two neighboring flood diversion pipe shaft 6 of flood diversion pipe band group is using the calculating of following formula：
B=d+2LkTg (β) formula four
In formula：B --- it is every two neighboring axial line distance of flood diversion pipe shaft 6, m in flood diversion pipe band group；
D --- it is the intracavity diameter of Flexible water pipe 8 of flood diversion pipe shaft 6 or rigid backbone synthetic material, m；
Lk--- it is the stiling basin protection-apron 9-1 length of one-level geosynthetics, m；
β --- it is angle of flare.
Specific embodiment four：As shown in Fig. 1 and Fig. 4, dykes and dams super standard flood described in specific embodiment one point
Big vast pipe band group, the stiling basin protection-apron 9-1 of the one-level geosynthetics and two grades of stiling basin protection-apron 9-2 of geosynthetics
Length Lk, the one-level sandbag baffle wall style 10-1 and two grades of height c of sandbag baffle wall style 10-2 calculated using equation below；
Formula five
Formula six
Formula seven
Formula eight
Lk=(0.7~0.8) LjFormula nine
Lj=9.5 (Frc-1)hcFormula ten
Formula 11
Formula 12
In formula：C --- for one-level sandbag baffle wall style 10-1 height or two grades of sandbag baffle wall style 10-2 highly, m；
h″c--- it is the stiling basin protection-apron 9-1 water depth after jump or two grades of geosynthetics of one-level geosynthetics
Stiling basin protection-apron 9-2 water depth after jump, m；
σ --- it is one-level sandbag baffle wall style 10-1 safety coefficients or two grades of sandbag baffle wall style 10-2 safety coefficients；
M --- it is one-level sandbag baffle wall style 10-1 water flows coefficient or two grades of sandbag baffle wall style 10-2 water flows systems
Number；
Q --- it is the discharge per unit width of flood diversion point, m3/ s.m,
q1、q2--- respectively the Flexible water pipe 8 of the rigid body skeleton synthetic material of flood diversion point exports discharge per unit width, one-level
Sandbag baffle wall style 10-1 discharge per unit widths, m3/s.m；Wherein：The L of the stiling basin protection-apron 9-1 of first order calculation geosyntheticskAnd one
The c of level sandbag baffle wall style 10-1 uses q1, calculate two grades of L of the stiling basin protection-apron 9-2 of geosyntheticskAnd two grades of sandbags disappear
The c of power bank 10-2 uses q2；
hc--- for the exit constriction section depth of water of Flexible water pipe 8 or one-level of the rigid backbone synthetic material of flood diversion point are husky
The bag baffle wall style 10-1 necked-down section depth of waters, m；
Frc--- it is the exit constriction section Floyd's algorithm of Flexible water pipe 8 or one-level sandbag of rigid backbone synthetic material
The after-contraction section Floyd's algorithm of baffle wall style 10-1；
E0--- it is the Flexible water pipe of the flood diversion pipe shaft 6 in face or rigid backbone synthetic material on the basis of the flood diversion ground of downstream
8 upstream total heads, m；
--- it is one-level sandbag baffle wall style 10-1 or two grades of sandbag baffle wall style 10-2 efflux coefficients；
Lk--- it is the stiling basin protection-apron 9-1 length or two grades of stiling basins of geosynthetics of one-level geosynthetics
Protection-apron 9-2 length, m；
Lj--- it is the free hydraulic jump lengths of stiling basin protection-apron 9-1 or two grades of geosynthetics of one-level geosynthetics
The stiling basin protection-apron free hydraulic jump lengths of 9-2, m；
Q --- it is flood diversion pipe band group's flow of flood diversion point, m3/s；；
B --- it is every two neighboring axial line distance of flood diversion pipe shaft 6, m in flood diversion pipe band group.
Specific embodiment five：As shown in Fig. 1 and Fig. 4, dykes and dams super standard flood described in specific embodiment one point
Big vast pipe band group, colour bar cloth sandbag erosion control 11 length of section are calculated using lower formula；
Formula 13
Formula 14
In formula：Lp--- it is colour bar cloth sandbag erosion control 11 length of section, m；
K --- it is colour bar cloth sandbag erosion control 11 terminal groups soil stabilization slope coefficients of section；
q3--- it is two grades of sandbag baffle wall style 10-2 discharge per unit widths, m3/s.m；
Δ H --- it is the upstream and downstream head difference of dykes and dams 1, m；
α0--- it is two grades of kinetic energy correction factors of the velocity flow profile of sandbag baffle wall style 10-2 ends；
Z --- it is two grades of position heights of the velocity flow profile Peak Flow Rate of sandbag baffle wall style 10-2 ends, m；
H --- it is two grades of sandbag baffle wall style 10-2 ends depth of waters, m；
ht--- it is downstream water depth at flood diversion, m；
rs, r --- respectively colour bar cloth sandbag erosion control section 11 terminal groups soil and water unit weight, KN/cm3；
ds--- it is ds50Colour bar cloth sandbag erosion control section 11 terminal groups grogs footpaths, cm；
Bc2--- it is two grades of width of sandbag baffle wall style 10-2, m；
Q --- it is flood diversion pipe band group's flow of flood diversion point, m3/s。
Application of the invention：When flood crosses predetermined water level into flood control, it (is reinforced rail first to install cage trash rack 4
Silk screen), HDPE flap valves 5, water level reaches corresponding warning line, small dike 2 is built on dykes and dams 1 and keeps off wave, dash, while installing rigidity
(rigid backbone is that the solids such as reinforcing bar wire netting are made in internal diameter and flood diversion pipe shaft 6 to the Flexible water pipe 8 of skeleton synthetic material
Footpath identical skeleton), the synthetic material is canvas line with rubber, waterproof cloth, thick plastic sheeting or composite geo-membrane).
Crops pressure in the range of the stiling basin protection-apron of two-stage geosynthetics, two-stage sandbag baffle wall style and colour bar cloth sandbag erosion control section 11
Or root out, lay stiling basin protection-apron, two-stage sandbag baffle wall style and the colour bar cloth sandbag erosion control section 11 of geosynthetics, disappearing
Energy erosion control material top wire netting (or netting) covers (or colour bar cloth+non-woven fabrics+netting is laid in bottom from the bottom to top), one
The sandbag of level sandbag baffle wall style 10-1 is beaten timber and is consolidated with wire netting (or netting) cover every 2~5m, two grades of sandbag baffle wall styles
10-2 only uses sandbag.The rope opening section of pull-up HDPE flap valves 5 or whole gate flood diversion, someone's value during flood diversion as needed
Keep, run into abnormal conditions and close the door in time, when water reduction, drawdown, gatage is also reduced, or close portion separating brake door,
Carry out Close All gate when flow reaches safe.
The Flexible water pipe 8 of cage trash rack 4, HDPE flap valves 5, rigid backbone synthetic material is removed after flood season, in time
Stiling basin protection-apron, two-stage sandbag baffle wall style and the colour bar cloth sandbag erosion control section 11 of two-stage geosynthetics are cleared up, recovers arable land.
Import hafnium U-type groove 3 is blocked with plastic sheeting and the sandbag soil body and carries out revetment, prevents excessively stream from destroying dykes and dams 1, if flood diversion pipe shaft
6 use Pe, Pvc or Pp chemical industry pipe, and the outlet hafnium U-type groove 7 of flood diversion pipe shaft 6 should also block resisting ultraviolet radiation, prevent flood diversion pipe
Body 6 is aging.If the plan for flood control of dykes and dams 1 before small dike is not built with regard to flood diversion, carry out flood diversion with reference to above step according to planning.
The course of work of the Flexible water pipe 8 of the interim flood diversion pipe shaft 6 of flood-fighting and rigid backbone synthetic material：If water
Depth is smaller or without HDPE flap valves, is tied up in the entrance point of flood diversion pipe shaft 6 as cage trash rack 4 using wire netting, with sandbag+nonwoven
Cloth+iron wire earth-retaining erosion control replaces import hafnium U-type groove 3, and it is U-shaped instead of the outlet hafnium of flood diversion pipe shaft 6 that flood diversion pipe shaft 6 stretches out downstream levee slope
Groove 7, if necessary to stop flood diversion, colour bar cloth pressure sandbag is put before cage trash rack 4 and replaces HDPE flap valves 5, and other are ibid.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
Change, remodeling, addition or replacement that the technical staff in domain is made in essential scope of the invention, should also belong to of the invention
Protection domain.
Claims (5)
1. a kind of dykes and dams super standard flood flood diversion pipe band group, it is characterised in that：The flood diversion pipe band group includes several flood diversion
Pipe band, described several flood diversion pipe bands include import hafnium U-type groove (3), cage trash rack (4), HDPE flap valves (5), flood diversion pipe
Body (6), outlet hafnium U-type groove (7), the Flexible water pipe (8) of rigid backbone synthetic material, the stiling basin of two-stage geosynthetics
Protection-apron, two-stage sandbag baffle wall style and colour bar cloth sandbag erosion control section (11)；
The stiling basin protection-apron of the two-stage geosynthetics be respectively one-level geosynthetics stiling basin protection-apron (9-1) and
Two grades of stiling basin protection-aprons (9-2) of geosynthetics, the two-stage sandbag baffle wall style is respectively one-level sandbag baffle wall style (10-
1) with two grades of sandbag baffle wall styles (10-2), the cage trash rack (4) is placed in import hafnium U-type groove (3), the HDPE flap valves
(5) it is placed in cage trash rack (4), HDPE flap valves (5) are fixed on flood diversion pipe shaft (6) entrance point, flood diversion pipe shaft (6) water
It is flat to be arranged on dykes and dams (1) top, and flood diversion pipe shaft (6) entrance point is located at import hafnium U-type groove (3) and cage trash rack (4) is interior, point
The port of export of big vast pipe shaft (6) is provided with outlet hafnium U-type groove (7), the entrance of the Flexible water pipe (8) of the rigid backbone synthetic material
End is connected with flood diversion pipe shaft (6) port of export, and the port of export of the Flexible water pipe (8) of rigid backbone synthetic material is placed on the dike
On dam (1) downstream slope and it is arranged on the stiling basin protection-apron (9-1) of one-level geosynthetics, the one-level geosynthetics
Stiling basin protection-apron (9-1) be laid on beach or field, stiling basin protection-apron (9-1) upstream end of one-level geosynthetics is put
Put on dykes and dams (1) downstream slope, stiling basin protection-apron (9-1) downstream and the one-level sandbag baffle wall style of one-level geosynthetics
(10-1) is connected, stiling basin protection-apron (9-2) upstream and one-level sandbag baffle wall style (10-1) phase of two grades of geosynthetics
Even, the stiling basin protection-apron (9-2) of two grades of geosynthetics is laid on beach or field, two grades of power that disappear of geosynthetics
Protection-apron (9-2) downstream in pond is connected with two grades of sandbag baffle wall styles (10-2), and colour bar cloth sandbag erosion control section (11) is laid in beach
Or on field, colour bar cloth sandbag erosion control section (11) upstream end is connected with two grades of sandbag baffle wall styles (10-2), and the one-level sandbag disappears
Power bank (10-1) is disposed adjacent with the Flexible water pipe (8) of rigid backbone synthetic material, all points in the flood diversion pipe band group
Big vast pipe shaft (6) is equidistantly set up in parallel, and the Flexible water pipe (8) of all rigid backbone synthetic materials in flood diversion pipe band group is
It is equally spaced side by side.
2. dykes and dams super standard flood according to claim 1 flood diversion pipe band group, it is characterised in that：The flood diversion pipe shaft
(6) and rigid backbone synthetic material Flexible water pipe (8) intracavity diameter using following formula calculate：
In formula：D --- it is flood diversion pipe shaft (6) or Flexible water pipe (8) intracavity diameter of rigid backbone synthetic material, m；
Q --- it is flood diversion pipe band group's flow of flood diversion point, m3/s；
π --- it is pi；
μc--- it is flood diversion pipe shaft (6) or Flexible water pipe (8) discharge coefficient of rigid backbone synthetic material；
N --- it is the flood diversion pipe shaft (6) or Flexible water pipe (8) quantity of rigid backbone synthetic material of flood diversion pipe band group；
G --- it is acceleration of gravity, m2/s；
H、H0--- do not include approach velocity head and the acting head including approach velocity head respectively；
λ --- it is flood diversion pipe shaft (6) or Flexible water pipe (8) frictional resistant coefficient of rigid backbone synthetic material；
L --- for the Flexible water pipe (8) of flood diversion pipe shaft (6) or rigid backbone synthetic material calculates segment length, m；
∑ ζ --- for flood diversion pipe shaft (6) or rigid backbone synthetic material Flexible water pipe (8) calculate section in total losses coefficient it
With；
α --- it is kinetic energy correction factor；
V0--- it is approach velocity, m/s.
3. dykes and dams super standard flood according to claim 2 flood diversion pipe band group, it is characterised in that：The flood diversion pipe band group
Every two neighboring flood diversion pipe shaft (6) spacing using following formula calculate：
B=d+2LkTg (β) formula four
In formula：B --- it is every two neighboring flood diversion pipe shaft (6) axial line distance, m in flood diversion pipe band group；
D --- it is flood diversion pipe shaft (6) or Flexible water pipe (8) intracavity diameter of rigid backbone synthetic material, m；
Lk--- it is stiling basin protection-apron (9-1) length of one-level geosynthetics, m；
β --- it is angle of flare.
4. dykes and dams super standard flood according to claim 3 flood diversion pipe band group, it is characterised in that：The one-level geotechnique closes
Into the stiling basin protection-apron (9-1) and two grades of length L of the stiling basin protection-apron (9-2) of geosynthetics of materialk, the one-level it is husky
Bag baffle wall style (10-1) and two grades of height c of sandbag baffle wall style (10-2) are calculated using equation below；
Lk=(0.7~0.8) LjFormula nine
Lj=9.5 (Frc-1)hcFormula ten
In formula：C --- it is one-level sandbag baffle wall style (10-1) height or two grades of sandbag baffle wall style (10-2) height, m；
h″c--- it is stiling basin protection-apron (9-1) water depth after jump or two grades of power that disappear of geosynthetics of one-level geosynthetics
Pond protection-apron (9-2) water depth after jump, m；
σ --- it is one-level sandbag baffle wall style (10-1) safety coefficient or two grades of sandbag baffle wall style (10-2) safety coefficients；
M --- it is one-level sandbag baffle wall style (10-1) water flow coefficient or two grades of sandbag baffle wall style (10-2) water flow systems
Number；
Q --- it is the discharge per unit width of flood diversion point, m3/ s.m,
q1、q2--- respectively Flexible water pipe (8) the outlet discharge per unit width of the rigid backbone synthetic material of flood diversion point, one-level are husky
Bag baffle wall style (10-1) discharge per unit width, m3/s.m；Wherein：The L of the stiling basin protection-apron (9-1) of first order calculation geosyntheticskAnd
The c of one-level sandbag baffle wall style (10-1) uses q1, calculate two grades of L of the stiling basin protection-apron (9-2) of geosyntheticskAnd two grades
The c of sandbag baffle wall style (10-2) uses q2；
hc--- it is Flexible water pipe (8) the exit constriction section depth of water or one-level sandbag of the rigid backbone synthetic material of flood diversion point
Baffle wall style (10-1) necked-down section depth of water, m；
Frc--- for Flexible water pipe (8) the exit constriction section Floyd's algorithm or one-level sandbag of rigid backbone synthetic material disappear power
Bank (10-1) after-contraction section Floyd's algorithm；
E0--- it is the flood diversion pipe shaft (6) in the face on the basis of the flood diversion ground of downstream or the Flexible water pipe (8) of rigid backbone synthetic material
Upstream total head, m；
--- it is one-level sandbag baffle wall style (10-1) or two grades of sandbag baffle wall style (10-2) efflux coefficients；
Lk--- it is stiling basin protection-apron (9-1) length or two grades of stiling basin shields of geosynthetics of one-level geosynthetics
Smooth (9-2) length, m；
Lj--- it is stiling basin protection-apron (9-1) the free hydraulic jump length or two grades of geosynthetics of one-level geosynthetics
Stiling basin protection-apron (9-2) free hydraulic jump length, m；
Q --- it is flood diversion pipe band group's flow of flood diversion point, m3/s；；
B --- it is every two neighboring flood diversion pipe shaft (6) axial line distance, m in flood diversion pipe band group.
5. dykes and dams super standard flood according to claim 1 flood diversion pipe band group, it is characterised in that：The colour bar cloth sandbag
Erosion control section (11) length is calculated using lower formula；
In formula：Lp--- it is colour bar cloth sandbag erosion control section (11) length, m；
K --- it is colour bar cloth sandbag erosion control section (11) terminal groups soil stabilization slope coefficient；
q3--- it is two grades of sandbag baffle wall style (10-2) discharge per unit widths, m3/s.m；
Δ H --- it is dykes and dams (1) upstream and downstream head difference, m；
α0--- it is two grades of kinetic energy correction factors of the velocity flow profile of sandbag baffle wall style (10-2) end；
Z --- it is two grades of position heights of the velocity flow profile Peak Flow Rate of sandbag baffle wall style (10-2) end, m；
H --- it is two grades of sandbag baffle wall style (10-2) end depth of waters, m；
ht--- it is downstream water depth at flood diversion, m；
rs, r --- respectively colour bar cloth sandbag erosion control section (11) terminal groups soil and water unit weight, KN/cm3；
ds--- it is ds50Colour bar cloth sandbag erosion control section (11) terminal groups grogs footpath, cm；
Bc2--- it is two grades of width of sandbag baffle wall style (10-2), m；
Q --- it is flood diversion pipe band group's flow of flood diversion point, m3/s。
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1616770A (en) * | 2004-05-23 | 2005-05-18 | 王恩厚 | Movable equipment for flood guide warping |
| CN201762694U (en) * | 2010-07-14 | 2011-03-16 | 陆振民 | Dam flow guiding device |
| CN103321179A (en) * | 2013-07-02 | 2013-09-25 | 成松桥 | Self-absorbing reservoir river load removing pipeline system |
| KR101532276B1 (en) * | 2014-11-18 | 2015-07-06 | 계룡환경주식회사 | Green algae prevention and sludge releasing system for upstream of dam |
| CN204703125U (en) * | 2015-05-06 | 2015-10-14 | 华北水利水电大学 | A kind of flood storage formula ecological embankment |
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2016
- 2016-02-29 CN CN201610111308.2A patent/CN105568923B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1616770A (en) * | 2004-05-23 | 2005-05-18 | 王恩厚 | Movable equipment for flood guide warping |
| CN201762694U (en) * | 2010-07-14 | 2011-03-16 | 陆振民 | Dam flow guiding device |
| CN103321179A (en) * | 2013-07-02 | 2013-09-25 | 成松桥 | Self-absorbing reservoir river load removing pipeline system |
| KR101532276B1 (en) * | 2014-11-18 | 2015-07-06 | 계룡환경주식회사 | Green algae prevention and sludge releasing system for upstream of dam |
| CN204703125U (en) * | 2015-05-06 | 2015-10-14 | 华北水利水电大学 | A kind of flood storage formula ecological embankment |
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