CN208441055U - A kind of Water Curtain Cave formula ecoscape dam - Google Patents
A kind of Water Curtain Cave formula ecoscape dam Download PDFInfo
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- CN208441055U CN208441055U CN201820976126.6U CN201820976126U CN208441055U CN 208441055 U CN208441055 U CN 208441055U CN 201820976126 U CN201820976126 U CN 201820976126U CN 208441055 U CN208441055 U CN 208441055U
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Abstract
The utility model discloses a kind of Water Curtain Cave formula ecoscape dams, including key dam body (1), the key dam body (1) is by upstream upstream face (11), top spillwag chute (12) and toe terrace (13) composition, the key dam body is across being set on river, the top overflow extends to form drop platform (2) for the downstream, the downstream side of drop platform and key dam body forms an arc cantilevered cornice structure (32), the toe terrace is located at below the arc cantilevered cornice structure, Water Curtain Cave gallery (3) are set between the arc cantilevered cornice structure and toe terrace, drop cascade is formed from the water under drop platform flow, and remarkable spit of fland step (31) is laid in Water Curtain Cave gallery, stilling pond (4) are arranged in the downstream of the Water Curtain Cave gallery.The advantages that Water Curtain Cave formula ecoscape dam has durability good, at low cost, safe and reliable to operation, and hydrophilic effect is good, and landscape ecological effects are strong.
Description
Technical field
The utility model relates to a kind of ecoscape dam more particularly to a kind of Water Curtain Cave formula ecoscape dams.
Background technique
In recent years, with beautiful rural construction, the proposition of Ecological waterscape theory, also with the continuous wound of hydraulic and hydroelectric engineering
New and development, grows rapidly also with social economy, and requirement of the people to water landscape, Ecology construction increasingly improves.For city
The weir built in city's river controlling projects ecological, landscape, in terms of propose new demand.
The movable landscape dam built on city river has: sluice, rubber dam, turnover panel wicket dam, steel dam valve and pneumatic brake etc., this
A little movable dams or at high cost or reliability, durability difference or aesthetics are bad；In addition, existing concrete or stone-laying
The landscape effect on the fixed ecoscape dam of body is bad.
In view of the above drawbacks, the weir of design is used under the premise of meeting flood control safety using function reducing concrete
Amount has carried out exploration and practice to the optimization of ecoscape weir in terms of improving the ecological of weir, hydrophily, landscape.
Utility model content
Technical problem to be solved in the utility model is to overcome the shortcomings of the prior art, is provided a kind of with resistance to
Long property is good, and at low cost, safe and reliable to operation, hydrophilic effect is good, the ecoscape dam of the strong Water Curtain Cave formula of landscape ecological effects.
In order to solve the above technical problems, the utility model above-mentioned purpose is achieved through the following technical solutions:
A kind of Water Curtain Cave formula ecoscape dam, including key dam body, the key dam body by upstream upstream face, top spillwag chute and
Toe terrace composition, for the key dam body across being set on river, the top overflow extends to form drop platform for the downstream,
The downstream side of drop platform and key dam body forms an arc cantilevered cornice structure, and it is outstanding that the toe terrace is located at the arc
Below arm-type cornice structure, Water Curtain Cave gallery is set between the arc cantilevered cornice structure and toe terrace, it is flat from drop
The water that platform flows down forms drop cascade, and remarkable spit of fland step is laid in Water Curtain Cave gallery, and the downstream setting of the Water Curtain Cave gallery disappears
Power pond.
Arc structure of the axis of dam of the key dam body in arch upstream, the upstream upstream face is perpendicular to horizontal plane, institute
The downstream dam facing of key dam body is stated in upstream curved arc form, makes the cross section of key dam body in upstream inner concavity.
The landscape enrockment of imitative nature piling and layout of stones shape is set on the top spillwag chute of the key dam body, to form water flow waterfall straggly
Cloth, increases the diversity of Water Curtain Cave water curtain, while can increase dam body self weight and be conducive to the dam body stability against sliding.
The drop platform stretches out toe terrace, makes the drop incidence point of the drop cascade far from toe terrace, and just
Fall into stilling pond well.
The remarkable spit of fland step is slabstone modelled after an antique, and the both ends of the remarkable spit of fland step connect two sides footpound force traffic, and in cascade
Security guardrail is arranged in the downstream edge of hole gallery.
Large-scale embossment is carved on the upstream side dam body of the key dam body.
Terrace step is arranged in the downstream side on the toe terrace, disposes places of cultural interest stone and water plant on the step of terrace.
The stilling pond is by energy dissipating protection-apron, the baffle wall style for the downstream end for being set to energy dissipating protection-apron, key-wall and two sides side slope
Composition；The energy dissipating protection-apron is made of the plain concrete cushion layer of reinforced concrete cast-in-situ bottom plate and lower berth, and is arranged every 15m
One expansion joint uses rubber water-proof in expansion joint.
The upstream of the key dam body sets horn-like concrete guard wall, downstream setting shore protection barricade, and bank setting emptying
Culvert, the step for connecting Water Curtain Cave gallery, and railing is set in the face near water of concrete guard wall and step.
The drop platform is that downstream extension at the top of key dam body is formed free overflow formula to fall bank, and it is incident to be conducive to drop
Point is conducive to the Against Sliding Stability of key dam body far from toe terrace.And the arc cantilevered cornice structure is the water of drop platform
Curtain hole gallery provides space；
Compared with the prior art, the advantages of the utility model are:
The water balcony on the utility model Water Curtain Cave formula ecoscape dam designs not instead of on dam surface, in dam master
Internal portion increases the hydrophilic safety played with water, can be easy to fall down and have with water flow to avoid dam crest water balcony close to downstream side
Slide into the danger of stilling pond.
The Jiang Shibanting step of crossing of the utility model Water Curtain Cave formula ecoscape dam design is arranged in Water Curtain Cave gallery, walking
The in picturesque disorder drop water curtain in downstream can be watched in gallery, and can appreciate the waterpower beautiful scenery that drop falls into stilling pond, simultaneously
Due to there is the Greening Design of the places of cultural interest stone placement and water plant on large-scale embossment and spit of fland step downstream side step on the inside of gallery, greatly
The big beautiful enjoyment for promoting walking in Water Curtain Cave gallery increases the hydrophilic experience of solid with water.
The utility model Water Curtain Cave formula ecoscape dam has durability good, at low cost, safe and reliable to operation, hydrophilic effect
Fruit is good, the ecoscape dam of the strong Water Curtain Cave formula of landscape ecological effects.
Detailed description of the invention
Fig. 1 is a kind of Water Curtain Cave formula ecoscape dam body axonometric drawing provided by the utility model.
Label declaration: 1, key dam body；11, upstream upstream face；12, top spillwag chute；13, toe terrace；2, drop platform；
3, Water Curtain Cave gallery；31, remarkable spit of fland step；32, arc cantilevered cornice structure；33, terrace step；34, security guardrail；4, disappear power
Pond；41, stilling pond protection-apron；42, baffle wall style；43, key-wall；44, side slope；45 reinforced concrete cast-in-situ bottom plates；46 plain concrete pads
Layer；47 expansion joints；5, auxiliary equipment；51, concrete guard wall；52, railing；53, step；54, emptying tunnel.
Specific embodiment
The utility model is described in further detail referring to the drawings and specific embodiments.
As shown in Figure 1, a kind of one embodiment of Water Curtain Cave formula ecoscape dam of the utility model includes key dam body 1, drops and put down
Platform 2, Water Curtain Cave gallery 3 and stilling pond 4 and auxiliary equipment 5 form.
In the present embodiment, arc structure of the axis of dam of key dam body 1 in arch upstream, upstream upstream face 11 is perpendicular to level
Face, downstream dam facing in upstream curved arc form, the cross section of key dam body 1 in " [" shape, i.e., it is whole in upstream inner concavity
Body is built up by armored concrete, and key dam body 1 crosses river for raising of water level, is carried out river water storage, is formed landscape lake, especially
The ecological water quantity in dry season river is ensured.
In the present embodiment, the landscape enrockment of imitative nature piling and layout of stones shape is set on the top spillwag chute 12 of key dam body 1, it is straggly to be formed
Water flow waterfall, increase Water Curtain Cave water curtain diversity, while can increase dam body self weight be conducive to the dam body stability against sliding.
In the present embodiment, river water is by top spillwag chute 12, then downstream extends through key dam body dam crest and form drop and put down
Toe terrace 13 is arranged in platform 2, the bottom of drop platform 2, and the platform 2 that drops stretches out toe terrace 13, the downstream on toe terrace 13
Stilling pond 4 is arranged in side.Drop platform 2 sluice by free overflow formula, dam body downstream side formed drop water curtain, fall into
Stilling pond 4.Be conducive to drop incidence point far from toe terrace 13 using the drop drop of platform 2, the antiskid for being conducive to key dam body 1 is steady
It is fixed.And one arc cantilevered cornice structure 32 of downstream side formation of drop platform 2 and key dam body 1, under the platform 2 that drops
Face setting Water Curtain Cave gallery 3 provides space.
In the present embodiment, Water Curtain Cave gallery 3 by below drop platform 2 arc cantilevered cornice structure 32 and toe terrace
13 and the drop cascade composition that is flowed down from drop platform 2, and antique stone plate remarkable spit of fland step 31, mistake are laid in Water Curtain Cave gallery 3
The both ends connection two sides footpound force traffic of people spit of fland step 31 has both hydrophile function, and in the upstream side dam body arc of Water Curtain Cave gallery 3
Large-scale embossment is carved on cantilevered cornice structure 32, increases the function of the publicity such as aqueous culture.The downstream side of Water Curtain Cave gallery 3 is arranged
Security guardrail 34, to protect pedestrains safety.The enterprising pedestrian's text Landscape stone of terrace step 33 in 3 downstream of Water Curtain Cave gallery is pacified simultaneously
The Greening Design with water plant is set, and places of cultural interest stone is laid in the close downstream side of terrace step 33, to falling in stilling pond 4
Water reflux energy dissipating promotes pedestrian's walking in Water Curtain Cave gallery 3 to protect the water plant on terrace step 33 close to upstream side
The impression of beauty increases the hydrophilic experience of solid of pedestrian and water, allows the pedestrian walked in Water Curtain Cave gallery 3 that can experience Wu Chengen
The artistic conception of " flowers and fruits mountain Promised Land, Water Curtain Cave cave heaven " in the works.
In the present embodiment, stilling pond 4 is close to the downstream of spit of fland step Water Curtain Cave gallery 3, by energy dissipating protection-apron 41, energy dissipating protection-apron 41
The baffle wall style 42 and key-wall 43 and two sides side slope 44 of downstream end form；And energy dissipating protection-apron 41 uses reinforced concrete cast-in-situ bottom
Plate 45, to prevent temperature stress in casting process from protection-apron being caused to deform, sole plate sets 10cm thickness plain concrete cushion layer 46.And
Expansion joint 47 is set one every 15m, and rubber water-proof is used in expansion joint 47.
In the present embodiment, auxiliary equipment 5 specifically includes that upstream sets horn-like concrete guard wall 51, downstream sets shore protection gear
Wall, emptying culvert 54 and opening and closing device, the step 53 and concrete guard wall 51 of connection Water Curtain Cave gallery and facing for step 53
The railing 52 etc. of water surface setting；
The Practical Project of the present embodiment construction is located on the river Jishou City Wan Xi, the Water Curtain Cave formula ecoscape of the present embodiment
Dam Structure Calculation and erosion control calculating process are as follows:
One, embodiment Water Curtain Cave formula ecoscape dam Structure Calculation
1) operating condition and Load Combination are calculated
Project Areas earthquake motion peak acceleration < 0.05g, Ground motion response spectrum signature period are that 0.35s (is equivalent to earthquake base
VI degree of this earthquake intensity <), it can be without providing fortification against earthquakes.Load Combination is shown in Table 1
1 landscape dam stable stress of table calculates operating condition and Load Combination
2) calculation method
Key dam body is located on batholith, carries out the dam foundation referring to " concrete gravity dam design specification " (SL 319-2005)
Against Sliding Stability and Stress calculation, calculation formula are as follows.
Shear Strength calculation formula:
In formula: K` --- the stability against sliding safety coefficient calculated by Shear Strength；
The Shear coefficient of friction of f` --- dam concrete and dam foundation contact surface, takes 0.65；
The Shear cohesiveness of c` --- dam concrete and dam foundation contact surface, KPa；
A --- dam foundation base surface sectional area (similarly hereinafter), m2；
∑ W --- act on normal direction score value of the whole load on dam body (including uplift pressure, similarly hereinafter) to sliding surface, kN；
∑ P --- dam body upper load is acted on to the tangential score value of slip plane, kN.
The calculation formula of shearing strength:
In formula: K --- by the stability against sliding safety coefficient of shear Strength Calculation；
The shearing resistance coefficient of friction of f --- dam concrete and dam foundation contact surface.
The vertical direct stress in dam foundation face:
In formula:
σOn y、σUnder y- dam foundation face upstream and downstream edge-perpendicular direct stress (kPa)；
∑ M --- it acts on and calculates torque summation of the whole load in dam foundation face cross-section centroid axis on monolith, kN.m；
J --- calculate the moment of inertia of the dam foundation face sectional area of monolith to dam foundation face centroid axis, m2；
X --- distance of the dam foundation face upstream and downstream edge to centroid axis, m.
3) calculated result
The dam foundation face stable stress calculating achievement on Water Curtain Cave formula ecoscape dam is shown in Table 2.
2 dam dam foundation face stable stress calculating achievement table of table
It is provided according to " concrete gravity dam design specification " SL319-2005, dam foundation face factor against sliding K` value is answered
It is provided less than table 3 and table 4.
3 dam foundation face factor against sliding K` of table
Dam foundation face factor against sliding K value should be less than following table regulation.
4 dam foundation face factor against sliding K of table
It is provided to may occur in which that the drawing no more than 0.1MPa is answered in dam body downstream face according to " hydraulic structure earthquake resistant design code "
Power.From calculated result it is found that landscape dam stability of dam foundation and antidumping meet code requirement.It is surveyed according to the geology at the dam body
Examining dam foundation permitted bearing capacity [R] is 1.6MPa, and dam foundation face stress is met the requirements.
Two, embodiment Water Curtain Cave formula ecoscape dam erosion control calculates
(1) water flow is parallel to washing away and being calculated as follows for bank slope generation:
In formula: hB--- local scouring depth (m)；
hP--- the depth of water (m) at place is washed away, with the replacement of Approximate Design water level depth capacity；
Vcp--- mean flow rate (m/s)；
VPermit--- allow non-scouring velocity (m/s) on riverbed face, determines V by geological conditionsPermit=1.05；
N --- it is related with the shape of protection bank slope in the plane, generally take n=1/4；
Calculated result hB=6.91m.
It is computed, bank slope shore protection barricade spats is in the following ultra-deep t=0.15m of erosion line.
(2) washing away for water flow oblique impact protection bank slope production is calculated as follows:
In formula: Δ hp--- the local degradation degree (m) counted from river bed；
α --- flow direction and the bank slope angle of cut, α=10 °；
M --- shore protection upstream batter slope coefficient；
D --- soil calculates partial size at slope foot, takes d=3cm；
Vj--- when water flow deflection, water flow local scour flow velocity,
Q1--- pass through the design discharge of river shoal part；
B1--- river shoal width, from riverbed edge to slope foot distance；B1=60.2m
H1--- the river shoal depth of water；Take H1=6.76m
β --- flow rate of water flow distributes nonuniformity coefficient, related with α, is checked in by tabling look-up.
By the scour depth Δ hp=0.55m for calculating longitudinal dike.
The left and right banks barricade on embodiment Water Curtain Cave formula ecoscape dam gos deep into bank slope greater than 1.5m, a left side close to bank slope
Right bank barricade cope level is above design flood level, and basis is located at bedrock surface, and substrate elevation 197.50m can avoid water flow
To dam abutment and foundation scouring.
Above-mentioned specific embodiment is used to illustrate the utility model, the only preferred embodiment of the utility model, and
It is not to limit the utility model, it is practical new to this in the spirit and scope of protection of the claims of the utility model
Any modification, equivalent substitution, improvement and etc. that type is made, both fall within the protection scope of the utility model.
Claims (9)
1. a kind of Water Curtain Cave formula ecoscape dam, including key dam body (1), which is characterized in that the key dam body (1) is met water by upstream
Face (11), top spillwag chute (12) and toe terrace (13) composition, the key dam body across being set on river, overflow by the top
Stream interface, which downstream extends to form, to drop platform (2), and the downstream side of drop platform and key dam body forms an arc cantilevered and cornices
Structure (32), the toe terrace are located at below the arc cantilevered cornice structure, the arc cantilevered cornice structure with
Water Curtain Cave gallery (3) are set between toe terrace, form drop cascade, and Water Curtain Cave gallery middle berth from the water under drop platform flow
If stilling pond (4) are arranged in the downstream of remarkable spit of fland step (31), the Water Curtain Cave gallery.
2. a kind of Water Curtain Cave formula ecoscape dam according to claim 1, it is characterised in that: the axis of dam of the key dam body
In the arc structure of arch upstream, the upstream upstream face is perpendicular to horizontal plane, and the downstream dam facing of the key dam body is in upstream
Curved arc form makes the cross section of key dam body in upstream inner concavity.
3. a kind of Water Curtain Cave formula ecoscape dam according to claim 1, it is characterised in that: overflow at the top of the key dam body
The landscape enrockment of imitative nature piling and layout of stones shape is set on stream interface, to form water flow waterfall straggly.
4. a kind of Water Curtain Cave formula ecoscape dam according to claim 1, it is characterised in that: the drop platform stretches out dam
Toe terrace makes the drop incidence point of the drop cascade far from toe terrace, and fairly falls in stilling pond.
5. a kind of Water Curtain Cave formula ecoscape dam according to claim 1, it is characterised in that: the remarkable spit of fland step is modelled after an antique
Slabstone, and the both ends of the remarkable spit of fland step connect two sides footpound force traffic, and safety guard is arranged in the downstream edge of Water Curtain Cave gallery
Bar (34).
6. a kind of Water Curtain Cave formula ecoscape dam according to claim 1, it is characterised in that: the upstream side of the key dam body
Large-scale embossment is carved on dam body.
7. a kind of Water Curtain Cave formula ecoscape dam according to claim 1, it is characterised in that: the downstream on the toe terrace
Terrace step (33) are arranged in side, and places of cultural interest stone and water plant are disposed on the step of terrace.
8. a kind of Water Curtain Cave formula ecoscape dam according to claim 1, it is characterised in that: the stilling pond is protected by energy dissipating
Baffle wall style (42), key-wall (43) and the two sides side slope (44) of smooth (41), the downstream end for being set to energy dissipating protection-apron form；It is described to disappear
Energy protection-apron is made of the plain concrete cushion layer (46) in reinforced concrete cast-in-situ bottom plate (45) and lower berth, and is arranged one every 15m
Expansion joint (47) uses rubber water-proof in expansion joint.
9. a kind of Water Curtain Cave formula ecoscape dam according to claim 1, it is characterised in that: the upstream of the key dam body is set
Shore protection barricade, and bank setting emptying culvert (54), connection Water Curtain Cave gallery is arranged in horn-like concrete guard wall (51), downstream
Step (53), and the face near water of concrete guard wall and step be arranged railing (52).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547263A (en) * | 2018-06-25 | 2018-09-18 | 中国电建集团中南勘测设计研究院有限公司 | A kind of Water Curtain Cave formula ecoscape dam |
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2018
- 2018-06-25 CN CN201820976126.6U patent/CN208441055U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547263A (en) * | 2018-06-25 | 2018-09-18 | 中国电建集团中南勘测设计研究院有限公司 | A kind of Water Curtain Cave formula ecoscape dam |
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