CN205501928U - Structure of restoreing abandoned land to cultivation is distinguished in reservoir inundation submergence with making - Google Patents
Structure of restoreing abandoned land to cultivation is distinguished in reservoir inundation submergence with making Download PDFInfo
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- CN205501928U CN205501928U CN201620238311.6U CN201620238311U CN205501928U CN 205501928 U CN205501928 U CN 205501928U CN 201620238311 U CN201620238311 U CN 201620238311U CN 205501928 U CN205501928 U CN 205501928U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a structure of restoreing abandoned land to cultivation is distinguished in reservoir inundation submergence with making, strike sand ovum gravel layer and set gradually the sediment of abandoning that strikes sand ovum gravel layer top in the riverbed including the riverbed and fill layer, clay and roll and fill the layer, plough that plant native backfill layer and the protection is carried, abandon the sediment and fill layer and clay and roll and fill the level and strike between sand ovum gravel layer and protection carry in the riverbed, plough and plant native backfill layer and be located that abandon that the sediment fills layer and the clay rolls and fills a layer top to carry continuously with the protection, domatic net roof beam inboard is provided with storehouse week towards the proluvial sandy loam district and the district that restores abandoned land to cultivation respectively with making. The utility model discloses can go on effectively backfilling using multipurposely to the sediment of abandoning of hydraulic and hydroelectric engineering construction excavation, can go on the tall bush under the hydraulic and hydroelectric engineering reservoir inundation line effectively transplanting using multipurposely to can solve the arable land resource loss problem in reservoir inundation and submergence district to a certain extent, effectively alleviate reservoir storehouse week people ground contradiction problem, economy, environment, social are showing.
Description
Technical field
This utility model belongs to Hydraulic and Hydro-Power Engineering environmental protection technical field, is specifically related to one
Kind of reservoir inundation submergence district restores abandoned land to cultivation structure with making.
Background technology
Hydraulic and Hydro-Power Engineering construction excavation produces the science of waste, right combination Utilizing question always
It is the content paid close attention to of water resources and hydropower development, additionally, reservoir inundation, water-retention and operation
Land resource, the living resources in storehouse, reservoir area week are created and flood more greatly and Effects of Immersion, makes storehouse
The productive life of storehouse, the district week people has also suffered from greater loss, wherein, and reservoir inundation and leaching
District's cultivated land resource loss problem is not had to become storehouse, Reservoir region week people ground the principal aspect of a contradiction.Cause
This, planning of science activities, the waste comprehensive utilization rationally solving Hydraulic and Hydro-Power Engineering construction and reservoir
Flood the cultivated land resource loss problem in submergence district, effectively alleviate storehouse, Reservoir region week people ground contradiction and ask
Topic, is highly desirable to urgent.
At present, the land reclamation work system that China's Construction for Hydroelectric Project takes up an area temporarily is the most relatively
For maturation, but about flooding in storehouse, Reservoir region week, the systematic study such as restore abandoned land to cultivation with making in submergence region
Work is carried out less, and Hydraulic and Hydro-Power Engineering Reservoir region storehouse week people ground contradictory problems phenomenon is the most non-
The most prominent, the economy of water resources and hydropower development, environment, social benefit are not fully exerted.
Therefore, from scientific and reasonable utilizing works waste, the living resources waste angle of minimizing reservoir inundation
Set out, explore effective reservoir inundation submergence district and restore abandoned land to cultivation with making construction method, build environmental protection
Type Hydraulic and Hydro-Power Engineering is imperative and meets needs of promoting a conservation culture.
Utility model content
For solving the problems referred to above, this utility model provides a kind of reservoir inundation submergence district and goes back with making
Plough structure.From scientific and reasonable utilizing works waste, the living resources waste angle of minimizing reservoir inundation
Degree sets out, and floods Hydraulic and Hydro-Power Engineering Reservoir region storehouse week, knot is restoreed abandoned land to cultivation in submergence region with making
Structure makes uniform requirement, restores abandoned land to cultivation with making operating technology level improving reservoir inundation submergence district, gram
Take the deficiencies in the prior art.
This utility model is achieved by following technical solution.
A kind of reservoir inundation submergence district restores abandoned land to cultivation structure with making, including riverbed impact sand gravel stratum and
It is set in turn in the waste above riverbed impact sand gravel stratum and fills layer, clay rolling and placement
Layer, ploughing and plant earthen backfill layer and protection carries, described waste fills layer and clay rolling and placement layer is positioned at
Riverbed impact sand gravel stratum and between protection carries, plough plant earthen backfill layer be positioned at waste fill layer and
Clay rolling and placement layer top, and carry with protection and being connected, set respectively inside described domatic grid beams
It is equipped with and rushes proluvial sandy loam district and the district that restores abandoned land to cultivation with making storehouse week.
Described protection carries and being made up of bottom girder, back timber, side bar and domatic grid beams, bottom girder and back timber
Being respectively placed in bottom and the top of domatic grid beams, side bar is between bottom girder and back timber, domatic
Grid beams is fixed into an entirety by bottom girder, back timber and side bar.
Described clay rolling and placement layer and protection also set up sand gravel between carrying and fill layer.
The described district that restores abandoned land to cultivation with making is disposed with some electric pumping stations and plants soil working area, and electric pumping station is close
Domatic grid beams side, plants soil working area near rushing side, proluvial sandy loam district storehouse week, on ground also
Also plant in ploughing district and be implanted with shelter-forest.
Be provided with new tidal channel in the described district that restores abandoned land to cultivation with making, and new tidal channel be arranged at storehouse Zhou Chong
The former tidal channel in proluvial sandy loam district is connected.
The beneficial effects of the utility model are:
Use structure of restoreing abandoned land to cultivation with making described in the utility model, it is possible to Hydraulic and Hydro-Power Engineering construction
The waste of excavation effectively backfills comprehensive utilization, it is possible to Hydraulic and Hydro-Power Engineering reservoir inundation line
Under shrub effectively transplant comprehensive utilization, and reservoir inundation can be solved to a certain extent
And the cultivated land resource loss problem in submergence district, effectively alleviate storehouse, Reservoir region week people ground contradiction and ask
Topic, economy, environment, social benefit are notable, carry for exploitation environmental type Hydraulic and Hydro-Power Engineering
Supply strong reference.
Accompanying drawing explanation
Fig. 1 is reservoir inundation submergence district described in the utility model upstream side typical section storehouse bank
Protection and engineering profile of restoreing abandoned land to cultivation with making；
Fig. 2 is reservoir inundation submergence district described in the utility model typical section bank slopes maintenance work
Journey elevation；
Fig. 3 is reservoir inundation submergence district's bank slopes maintenance described in the utility model and restores abandoned land to cultivation with making
Engineering floor map.
In figure: 1-bottom girder, 2-back timber, 3-side bar, 4-waste fills layer, 5-clay rolling and placement
Layer, 6-sand gravel fills layer, the domatic grid beams of 7-, original place, 8-reservoir area upper thread, and 9-ploughs and plants soil time
Packing course, 10-riverbed impact sand gravel stratum, rush proluvial sandy loam district 11-storehouse week, 12-goes back with making
Ploughing district, 13-plants soil working area, 14-electric pumping station, the new tidal channel of 15-, the former canal that drains off floodwaters of 16-, 17-
Shelter-forest, 18-restores abandoned land to cultivation district's upstream and differentiation boundary line, middle reaches with making, and 19-restores abandoned land to cultivation middle reaches, district with making
District and demarcation line, catchment.
Detailed description of the invention
Further describe the technical solution of the utility model below in conjunction with the accompanying drawings, but claimed
Scope is not limited to described.
As shown in Figure 1 to Figure 3, a kind of reservoir inundation submergence district described in the utility model makes ground
Restore abandoned land to cultivation structure, including riverbed impact sand gravel stratum 10 and be set in turn in riverbed impact sand ovum
Waste above gravel layer 10 fills layer 4, clay rolling and placement layer 5, ploughs and plant earthen backfill layer 9
Carrying 20 with protection, described waste fills layer 4 and clay rolling and placement layer 5 is positioned at riverbed impact
Sand gravel stratum 10 and protection carry between 20, plough and plant earthen backfill layer 9 and be positioned at waste and fill layer 4
With clay rolling and placement layer 5 top, and carry 20 with protection and be connected, described domatic grid beams 7
Inner side is respectively arranged with and rushes proluvial sandy loam district 11 and the district 12 that restores abandoned land to cultivation with making storehouse week.Such as Fig. 1 institute
Showing, waste fills layer 4 and clay rolling and placement layer 5 is respectively positioned on above original place, reservoir area upper thread 8.
Described protection carries 20 and is made up of bottom girder 1, back timber 2, side bar 3 and domatic grid beams 7,
Bottom girder 1 and back timber 2 are respectively placed in bottom and the top of domatic grid beams 7, and side bar 3 is positioned at the end
Between beam 1 and back timber 2, domatic grid beams 7 is fixed by bottom girder 1, back timber 2 and side bar 3
Become an entirety.
Described clay rolling and placement layer 5 and protection carry and also set up sand gravel between 20 and fill layer 6.
The described district 12 that restores abandoned land to cultivation with making is disposed with some electric pumping stations 14 and plants soil working area 13, and
Soil working area 13, near domatic grid beams 7 side, is planted husky near rushing proluvial storehouse week in electric pumping station 14
Side, loam district 11, also plants in district 12 is restoreed abandoned land to cultivation on ground and is implanted with shelter-forest 17；Described make also
It is provided with new tidal channel 15 in ploughing district 12, and new tidal channel 15 rushes proluvial with being arranged at storehouse week
The former tidal channel 16 in sandy loam district 11 is connected.Flood guide is carried out by arranging tidal channel, if
Put shelter-forest 17 to bury with wind erosion prevention sand, to guarantee to restore abandoned land to cultivation engineering safety, effectively operation with making also
Give full play to economy, society and environmental benefit.
A kind of reservoir inundation submergence district described in the utility model restores abandoned land to cultivation the construction party of structure with making
Method, the method relates to region according to Hydraulic and Hydro-Power Engineering excavation waste and reservoir inundation, submergence
Practical situation, storehouse, Reservoir region week is flooded and relates to region with submergence and restore abandoned land to cultivation with making work
Make, restore abandoned land to cultivation with making operating technology level improving reservoir inundation submergence district, reach water conservancy and hydropower work
The purpose that Cheng Kaifa and environmental conservation are coordinated mutually；Its concrete grammar step includes bank slopes maintenance, abandons
Slag reuse and protection material fill, plough and plant soil excavation and backfill and the construction of attached auxiliary facility；
As shown in Figure 1 to Figure 3, described bank slopes maintenance is in the storehouse of reservoir inundation Yu submergence region
Bank puies forward 20 modes protected by arranging protection, and wherein protection carries 20 and includes being sequentially connected with
Bottom girder 1, back timber 2, side bar 3 and domatic grid beams 7；
Storehouse bank, for being arranged on bottom bank slopes maintenance engineering and on the basis of riverbed, is prevented by described bottom girder 1
Nurse's journey upper load passes to the supporting construction of riverbed soil supporting layer, to tie bank slopes maintenance
Structure monolithic stability plays base support and load-bearing effect, preferably uses armored concrete equal strength height, makes
The structure that valency is low, bottom girder 1 cope level preferably exceeds basis, riverbed, bank slopes maintenance engineering place elevation
10 centimetres to 30 centimetres, the height of bottom girder 1 be generally 1.0 meters to 3.0 meters, width general
It is 0.5 meter to 1.0 meters, its physical dimension form, embedded depth of foundation, intensity, stability
Etc. meeting respective design requirement.
Described back timber 2 is the fixed structure being arranged on bank slopes maintenance engineering top, to prevent storehouse bank
Protection structure monolithic stability plays fixation, preferably uses armored concrete equal strength height, cost low
Structure, back timber 2 cope level is preferably consistent with bank slopes maintenance engineering cope level, the height of back timber 2
Degree generally 0.5 meter to 1.0 meters, width are generally 1.0 meters to 2.0 meters, its physical dimension shape
Formula, embedded depth of foundation, intensity, stability etc. need to meet respective design requirement；
Described side bar 3 is to be arranged on the connection that bank slopes maintenance engineering each bank protection element project is interval
And fixed structure, so that bank slopes maintenance structure monolithic stability is risen Stabilization, preferably use reinforcing bar to mix
The structure that solidifying soil equal strength is high, cost is low, the width of side bar 3 is generally 0.3 meter to 0.5 meter,
Highly generally 0.3 meter to 0.5 meter, its physical dimension form, embedded depth of foundation, intensity,
Stability etc. need to meet respective design requirement；
Described domatic grid beams 7 is to be arranged on the armored concrete net that bank slopes maintenance engineering is domatic
Gird type slope protection structure, domatic basal plane preferably takes manual amendment measure remove surface scum and highlight
Part stone, with guarantee grid beams bank protection slope ratio less than 1:2, for slope ratio on 1:2
Bank protection anchor structure should be taked to guarantee the stability in the large that bank slopes maintenance engineering is domatic.Domatic grid
The grid of beam 7 is generally rhombus or plane quadrilateral pattern is arranged, preferably on bank slopes maintenance engineering edge
Longitudinal every 14 meters to 21 meters of reservoir area arranges one group of domatic grid beams 7, each group of domatic grid beams
The corresponding two jiaos of horizontal spacings of single grid in 7 are generally 2 meters to 4 meters, and longitudinal pitch is general
It it is 3 meters to 5 meters；Lattice beam width in domatic grid beams 7 is generally 0.2 meter to 0.4 meter,
Highly generally 0.3 meter to 0.5 meter.
It is to take to abandon bottom Engineering Zone of restoreing abandoned land to cultivation with making that described waste reuse is filled with protection material
Slag fills mode to raise the basic elevation of former reservoir inundation submergence district coverage, and by
Former reservoir inundation submergence district takes near bank side, storehouse impervious body to fill and the side such as fills with sand gravel
Formula gives integrated protection, as the clay rolling and placement layer 5 in Fig. 1 and sand gravel fill layer 6 institute
Show, to reach effectively to slow down the mesh of Engineering Zone reservoir inundation submergence adverse effect of restoreing abandoned land to cultivation with making
's；
Described waste fills the waste referring to produce Hydraulic and Hydro-Power Engineering construction excavation and combines
Close backfill to utilize, to raise former reservoir bottom the Engineering Zone that is backfilled to excavation slag charge to restore abandoned land to cultivation with making
Flooding the basic elevation of submergence district coverage, waste fills can be according to Engineering Zone of restoreing abandoned land to cultivation with making
Orographic condition subregion, classification are carried out, and should give and roll compacting, the height that fills, the gradient and
Quantities should be wanted according to the height of raising of restore abandoned land to cultivation with making works scope and former reservoir inundation submergence district
Ask and determined, and restore abandoned land to cultivation with making engineering general safety, stable meeting reservoir inundation submergence district
Operation is advisable；
It is to utilize the material of low permeability will restore abandoned land to cultivation with making engineering storehouse land region that described impervious body fills
The reservoir osmotic control in territory is in allowed band, as shown in clay rolling and placement layer 5 in Fig. 1,
Its filling material is generally cohesive soil, calculous soil, Weathered Material and admixture, its infiltration coefficient with
It is not more than 1 × 10-4Cel is advisable, and impervious body should have preferable plasticity and osmotic stability,
Its thickness is typically between 0.5 meter to 1.5 meter, and should give and roll compacting, and it fills the gradient
And quantities should raise height according to restore abandoned land to cultivation with making works scope and former reservoir inundation submergence district
Requirement is determined, and restores abandoned land to cultivation with making engineering general safety, steady meeting reservoir inundation submergence district
Determine operation to be advisable.
It is in domatic reinforced concrete lattice beam grid and under basis that described sand gravel fills
Side, and the bottom girder of bank slopes maintenance engineering, back timber basis and periphery, carry out surface surface dust, miscellaneous
Thing is removed and is filled sand gravel after smooth, and takes compacting machinary to be compacted be formed such as Fig. 1 institute
The sand gravel shown fills layer 6, and the sand gravel filled typically takes nature aggregate, and its diameter should
Mixed preparing between 10 centimetres to 30 centimetres, sand gravel layer thickness is preferably at 0.5 meter to 1.5
Between meter, to guarantee that sand gravel fills layer and bank slopes maintenance engineering entirety not because of reservoir inundation submergence
The SEA LEVEL VARIATION in district and unstability.
Described ploughing plants soil excavation and backfill is to plough reservoir inundation submergence district original place table to plant soil and carry out
After excavation, foreign material therein are cleared up, and satisfied the cultivated of backfill quality criteria requirements is planted
Soil is kept in and is stored up field to the appointment restoreing abandoned land to cultivation in Engineering Zone with making, and fills work at waste with protection material
After journey completes, carry out on top layer, Engineering Zone of restoreing abandoned land to cultivation with making ploughing and plant earthen backfill, thus formed such as figure
Cultivated shown in 1 plants earthen backfill layer 9.Qualified plough plant soil must not contain rubbish, turf, tree root,
The foreign material such as large scale gravel, cultivated earthen backfill thickness of planting should specifically backfill thickness no less than 0.6 meter
Should determine according to Engineering Zone crops corresponding requirements of restoreing abandoned land to cultivation with making, Geng Zhi earthen backfill district leveling pressure
Real elevation should meet the requirements and can backfill, and its flatness is preferably 10000 square metres of scope ± 30
Centimetre, go back with making reservoir inundation submergence district soil resource is effectively comprehensively utilized and guarantees
Plough engineering construction effect.
Described attached auxiliary facility refers in Engineering Zone of restoreing abandoned land to cultivation with making by arranging irrigation pumping station
Carry out water conservancy irrigation, tidal channel be set and carry out flood guide, shelter-forest is set and buries with wind erosion prevention sand,
With the engineering safety that guarantees to restore abandoned land to cultivation with making, effectively run and give full play to economy, society and Environmental Effect
Benefit.
As it is shown on figure 3, described irrigation pumping station refers to take electric pumping station 14 irrigation by pumping mode such as grade
Carry out restoreing abandoned land to cultivation with making the water conservancy irrigation of Engineering Zone, and the pumping plant at electric pumping station 14 typically uses centrifugal
Pump water lift, general installation two, the using and the reserved, pump room structure is generally ground type brick mix structure,
The design parameters such as the water lift flow at electric pumping station 14, lift, rotating speed, power should meet to be gone back with making
Plough engineering water conservancy Irrigation Design requirement.
Restore abandoned land to cultivation Engineering Zone flood damage with making as it is shown on figure 3, described tidal channel is prevention and repaiies
The irrigation canals and ditches built, tidal channel should be tried one's best new on the basis of the original tidal channel in reservoir inundation submergence district 16
Build or reconstruct new tidal channel 15, make full use of Engineering Zone terrain slope of restoreing abandoned land to cultivation with making and lay,
Make the flood dammed can flow into receiving water body with beeline gravity.Tidal channel typically takes open channel
Form, form of fracture is generally trapezoidal or rectangle；Longitudinal gradient is typically no less than 1%, when longitudinal gradient very
It is considered as time big arranging drop or chute, but turning must not be located at；Typically take stone masonry or
Concrete material；Minimal design flow velocity is generally 0.4 meter per second, and design maximum flow velocity is generally
4.0 meter per second；The specifically ginseng such as tidal channel trend, form, longitudinal gradient, design current velocity, design specification
Number should meet corresponding specification and drains off floodwaters requirement in Engineering Zone of restoreing abandoned land to cultivation with making.
As it is shown on figure 3, described shelter-forest 17 is by being flooded Qiao below transplanting reservoir inundation line
Wood and shrub, and it is aided with the modes such as seedling, in Engineering Zone periphery and each plot district of restoreing abandoned land to cultivation with making
Between shelter-forest be set bury with wind erosion prevention sand, promote to restore abandoned land to cultivation with making Engineering Zone crops stable yields, height
Produce.Shelter-forest 17 should be on speaking terms with district's crops coordinated growth of restoreing abandoned land to cultivation with making, main root should deeply and
Side root width is less, and tree crown is narrower, is difficult to wind-fall, windbreak, have stronger cold-resistant, drought resisting,
The abilities such as disease and insect resistance, water-fast wet, Saline alkali tolerance；Shelter belt spacing is generally shelter-forest tree
Plant mean stand height 15 times to 20 times, in shelter-forest forest belt, trees arrangement pitch should reach effective
Wind erosion prevention sand buries purpose and is advisable, and the Tree Species Selection of shelter-forest, seedling quality, method of forestation etc. have
Body parameter should meet corresponding specification and Engineering Zone wind erosion prevention sand of restoreing abandoned land to cultivation with making buries requirement.Shelter-forest
17 are planted in restore abandoned land to cultivation in district 11 with making, and are being provided with the district that restores abandoned land to cultivation with making in the district 11 that restores abandoned land to cultivation with making
Upstream and differentiation boundary line, middle reaches 18, with making restore abandoned land to cultivation middle reaches district of district and demarcation line, catchment 19 every
Open.
Draw card power station embodiment to this utility model scheme below in conjunction with the Yellow River, Qinghai Zhi Gang
It is described in further detail as follows:
(1) project profile
Qinghai Zhi Gang draws card power station to be positioned at Eastern Region of Qinghai Province, and its dam site is at Huangnantibetan certainly
On the Yellow River mainstream that Zhi Zhou Jianzha County and Hui Autonomous County of Hualong, Haidong Prefecture have a common boundary.Card is drawn on straight hilllock
Power station main task is generating, medium-sized third engineering, existing installed capacity 19.0 ten thousand kW, water
Storehouse normal pool level 2050m, level of dead water 2048m, aggregate storage capacity 15,400,000 m3, wherein regulate
Storage capacity 3,000,000 m3。
Straight La Ka power station, hilllock uses river channel layout pattern, and key construction is built by right bank dash
Build engineering, Power Tunnels, sluicing energy dissipating engineering, electric power step-up substation project and left bank earth and rockfill dam
Engineering forms, maximum height of dam 42.5m, maximum generation head 17.5m.Engineering reservoir inundation with
Key construction relates to Kan Bula town, Jianzha County, Purulent uterine mucositis Ya Shiga town and amounts to 2 counties 3 with Cha Pu township
Town (township), engineering construction is forever taken over the land for use 451.86 mu, is taken over the land for use 473.12 mu temporarily.Reservoir floods
Do not has land surface 0.47km2, water surface area 0.51km2, submergence land area 0.17km2, flood
No 147.33 mu, 199.94 mu of forest land (being all irrigated land), deserted mountain barren hill 347.39 of arable land
Mu, 11.04 mu of flood land, 1.0 mu of meadow, fragmentary fruit tree 173047 strain (fruit tree kind 17741
Strain, economic class 14782 strain, use material class 140524 strain).
Straight hilllock draws card Hydropower Project excavation reality to produce 110.4 ten thousand m3Waste, closes for science
Reason utilizing works waste, the living resources waste of minimizing reservoir inundation, La Ka power station, straight hilllock is real
Execute cattle beach to flood submergence district and restore abandoned land to cultivation with making special environment-friendly engineering.
(2) restore abandoned land to cultivation with making project situation
1) bank slopes maintenance project situation
Cattle beach is flooded submergence district bank slopes maintenance and is taked concrete, loose stone grid beams embankment, protects
Slope overall length 2225m, wide 20m, cope level 2052m, beyond reservoir operation scheme 2m,
1:2.5 is compared on bank protection slope.
As it is shown in figure 1, embankment bottom girder 1 is armored concrete stalk, its width and height point
Not Wei 0.8m and 1.5m, cutting depth is 1.8m, bottom girder cope level exceed bank slopes maintenance work
Basis, riverbed, journey place elevation 15cm.Embankment back timber 2 is armored concrete stalk, and it is wide
Degree and height are respectively 0.5m and 1.0m, cutting depth 1.2m, back timber cope level and storehouse bank
Protection works cope level is consistent, is 2052m.Embankment side bar 3 is that armored concrete is straight
Wall, its width and height are respectively 0.3m and 0.5m.
Arrange, at bank slopes maintenance as in figure 2 it is shown, the grid of domatic grid beams 7 is diamond pattern
Along reservoir area, the most every 16.85m arranges one group of domatic grid beams 7, each group of domatic grid to engineering
The corresponding two jiaos of horizontal spacings of single grid in beam 7 are 3m, and longitudinal pitch is 4m；Domatic net
Lattice beam width in lattice beam 7 is 0.3m, and height is 0.5m.
2) waste reuse and protection material reclamation work situation
Cattle beach is flooded submergence district and is belonged to II level terrace, pedestal elevation 2038m～2042m, top layer
For 1m～7m thickness diluvial loam not etc. and fine sand soil.Card reservoir operation scheme is drawn on straight hilllock
During 2050m, Niu Tan submergence district mean breadth 98m, length 1500m, elevation scope
2050m～2053.2m, influence basin 221 mu.
Waste 110.4 ten thousand m that straight hilllock draws card Hydropower Project construction and excavation to produce3All it is transported to
The backfill of submergence district is flooded on cattle beach, high to raise the basis of former reservoir inundation submergence district coverage
Journey, waste backfills, rolls rear elevation is 2050.4m (downstream)～2051m (upstream side),
With guarantee plough plant earthen backfill make ground engineering effectiveness.
Using clay to carry out impervious body to fill, its infiltration coefficient is not more than 1 × 10-4cm/s, tool
Having preferable plasticity and osmotic stability, filling-up thickness is 1.0m (top)～1.5m (bottom),
It is 1:2.5 that impervious body rolls the gradient after compacting.
In domatic reinforced concrete lattice beam grid and ground beneath, and bank slopes maintenance work
The embankment bottom girder 1 of journey, embankment back timber 2 basis and periphery, carry out surface surface dust, foreign material
Fill sand gravel composition sand gravel as shown in Figure 2 after removing and being smooth and fill layer 6, and take
Compacting machinary is compacted, and forms waste as shown in Figure 1 and fills layer 4 and clay rolling and placement
Layer 5, the sand gravel filled is nature aggregate, and its diameter is mixed between 10cm to 30cm
Closing preparation, sand gravel layer thickness is 1.0m.
3) cultivated soil of planting excavates and stemming operation situation
Cattle beach is ploughed in flooding submergence district and is planted soil average excavation thickness 1.0m, excavated volume 38.54 ten thousand
m3, plough preserve after planting soil excavation flood submergence district to cattle beach in corresponding work area specify and store up field,
The backfill of engineering waste, roll after, then plant earthen backfill, backfill amount 36.85 by excavating the cultivated of preservation
Ten thousand m3。
Plough that to plant earthen backfill elevation be 2051.4m (downstream)～2052m (upstream side), according to
In submergence district is flooded on cattle beach, practical situation is divided into three regions: upstream backfill elevation is
2052m, middle reaches district backfill elevation is at 2051.4m (nearly downstream)～2052m (nearly upstream side)
Interval transition, catchment backfill elevation is 2051.4m.Cattle beach is ploughed and is planted earthen backfill quality control mark
Standard is: qualified ploughing is planted soil and must not be contained rubbish, turf, tree root, heavy sand matter and gravelstone；Plough and plant
Soil thickness is no less than 60.0cm, must carry out an acceptance inspection basic unit before backfill, leveling compacting elevation
Meet the requirements and can backfill；Back filled region flatness requirement is at 10000m2 scope ± 25cm.
4) attached auxiliary facility project situation
Irrigation pumping station is small-sized electric pumping station, respectively Niu Tan restore abandoned land to cultivation with making upstream, Project Areas, middle reaches,
Downstream arranges pump house at, and pump room structure is ground type brick mix structure, installs two horizontal multi-stages
Single suction stagewise centrifugal pump water lift, the using and the reserved, water lift flow 12.5m3/ h, lift 20m,
Rotating speed 2950rpm, takes out power 1.33kW, power of motor 2.2kW.
As it is shown on figure 3, new tidal channel 15 floods the base of the original canal 16 that drains off floodwaters in submergence district at Niu Tan
On plinth newly-built, long 432m, take open channel form, for 0.3m thickness stone masonry trapezoidal cross-section, the end
Wide 1.8m, deep 1.6m～1.8m of canal, 1:1 is compared on slope.Tidal channel longitudinal gradient 2%, minimal design stream
Speed 0.4m/s, design maximum flow velocity 4.0m/s.
The shelter-forest of Engineering Zone is restoreed abandoned land to cultivation mainly by transplanting below reservoir inundation line in cattle beach with making
Flooded willow, willow and other shrubs, wherein willow 37741 strain, willow 34782 strain, sand
All kinds of shrub 240524 strains such as spine, Cacumen Myricariae Germanicae, Salix caprea, Lonicera hispida (steph) Pall ex Roem et Schult, littleleaf peashrub,
The arbor height of tree is between 3.0m～7.0m, in Engineering Zone periphery and the interval, each plot of restoreing abandoned land to cultivation with making
Being arranged, shelter belt spacing is 120m.
(3) restore abandoned land to cultivation with making project benefit
Cattle beach is flooded submergence district special environmental engineering of restoreing abandoned land to cultivation with making and is amounted to investment 24,300,000
Unit, uses structure of restoreing abandoned land to cultivation with making described in the utility model, not only solves major project construction
Waste is disposed and vegetation protection problem under reservoir inundation line, and storehouse bank is flooded submergence district is had
Effect protection, also implements to make ground area 402.6 mu, 341.04 mu of (Semen Tritici aestivis 197.80 of wherein ploughing
Mu, miscellaneous grain crops 30.69 mu, 17.05 mu of Rhizoma Solani tuber osi, Brassica campestris L 17.06 mu, vegetable 27.28 mu, green grass or young crops
51.16 mu of feedstuff), 8.83 mu of forest land (predominantly both sides, arable land shelter-forest), construction land
34.66 mu (predominantly room, Ecological sightseeing garden), restore abandoned land to cultivation with making district's agricultural planting and sightseeing tour
Every year can nearly 1,000,000 yuan of extra earning, for slow down straight hilllock La Ka people from Reservoir of Hydropower Station ground contradiction, change
In kind region, peasant's productive life serves bigger facilitation, create good environment,
Economy and social benefit.
Claims (4)
- null1. a reservoir inundation submergence district restores abandoned land to cultivation structure with making，It is characterized in that: include riverbed impact sand gravel stratum (10) and be set in turn in riverbed impact sand gravel stratum (10) top waste fill layer (4)、Clay rolling and placement layer (5)、Plough and plant earthen backfill layer (9) and protection carries (20)，Described waste fills layer (4) and clay rolling and placement layer (5) is positioned at riverbed impact sand gravel stratum (10) and protection carries between (20)，Plough and plant earthen backfill layer (9) and be positioned at waste and fill layer (4) and clay rolling and placement layer (5) top，And carry (20) with protection and be connected，Described protection carries (20) by bottom girder (1)、Back timber (2)、Side bar (3) and domatic grid beams (7) composition，Bottom girder (1) and back timber (2) are respectively placed in bottom and the top of domatic grid beams (7)，Side bar (3) is positioned between bottom girder (1) and back timber (2)，Domatic grid beams (7) passes through bottom girder (1)、Back timber (2) and side bar (3) are fixed into an entirety，Described domatic grid beams (7) inner side is respectively arranged with and rushes proluvial sandy loam district (11) and the district (12) that restores abandoned land to cultivation with making storehouse week.
- A kind of reservoir inundation submergence district the most according to claim 1 restores abandoned land to cultivation structure with making, it is characterised in that: described clay rolling and placement layer (5) and protection carry and also set up sand gravel between (20) and fill layer (6).
- A kind of reservoir inundation submergence district the most according to claim 1 restores abandoned land to cultivation structure with making, it is characterized in that: described in restore abandoned land to cultivation with making district (12) be disposed with some electric pumping stations (14) and plant soil working area (13), and electric pumping station (14) are near domatic grid beams (7) side, plant soil working area (13) near rushing proluvial sandy loam district (11) side storehouse week, also plant in district (12) is restoreed abandoned land to cultivation on ground and be implanted with shelter-forest (17).
- A kind of reservoir inundation submergence district the most according to claim 1 restores abandoned land to cultivation structure with making, it is characterized in that: described in restore abandoned land to cultivation with making and be provided with new tidal channel (15) in district (12), and new tidal channel (15) is connected with being arranged at the former tidal channel (16) rushing proluvial sandy loam district (11) storehouse week.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620238311.6U CN205501928U (en) | 2016-03-25 | 2016-03-25 | Structure of restoreing abandoned land to cultivation is distinguished in reservoir inundation submergence with making |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620238311.6U CN205501928U (en) | 2016-03-25 | 2016-03-25 | Structure of restoreing abandoned land to cultivation is distinguished in reservoir inundation submergence with making |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205501928U true CN205501928U (en) | 2016-08-24 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620238311.6U Withdrawn - After Issue CN205501928U (en) | 2016-03-25 | 2016-03-25 | Structure of restoreing abandoned land to cultivation is distinguished in reservoir inundation submergence with making |
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| Country | Link |
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| CN (1) | CN205501928U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672198A (en) * | 2016-03-25 | 2016-06-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Land and farmland reclamation structure of reservoir inundation and immersion region and construction method for land and farmland reclamation structure |
| CN110468785A (en) * | 2019-09-12 | 2019-11-19 | 中国电建集团中南勘测设计研究院有限公司 | A kind of slag structure and slag method |
-
2016
- 2016-03-25 CN CN201620238311.6U patent/CN205501928U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672198A (en) * | 2016-03-25 | 2016-06-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Land and farmland reclamation structure of reservoir inundation and immersion region and construction method for land and farmland reclamation structure |
| CN110468785A (en) * | 2019-09-12 | 2019-11-19 | 中国电建集团中南勘测设计研究院有限公司 | A kind of slag structure and slag method |
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Granted publication date: 20160824 Effective date of abandoning: 20171024 |
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