CN102234995B - Ecological overtopping dam and construction method thereof - Google Patents
Ecological overtopping dam and construction method thereof Download PDFInfo
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- CN102234995B CN102234995B CN201010292264.0A CN201010292264A CN102234995B CN 102234995 B CN102234995 B CN 102234995B CN 201010292264 A CN201010292264 A CN 201010292264A CN 102234995 B CN102234995 B CN 102234995B
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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 invention provides an ecological overtopping dam and a construction method thereof. Specifically, an impermeable or permeable overtopping dam core is built by using reinforced concrete, and the foundation of the dam core is embedded in the ground, thereby meeting the stability requirements of the ecological overtopping dam; and stone ripraps are piled at the two sides of the overtopping dam core on the ground, and the stone ripraps are covered with a wire box or continuously wedged into timber piles along two sidelines of the bottom margin of the overtopping dam, thereby meeting the stability conditions of the stone ripraps. Through the construction of the ecological overtopping dam, the effect of falling-water aeration can be improved, and a living/perching space can be provided for aquatic creatures, thereby improving the self cleaning capacity of water. The ecological overtopping dam and construction method thereof provided by the invention are simple and quick, low in cost, convenient in operation and maintenance and wide in application range, embody the concepts of contemporary near-natural water resource engineering, and can be applied to the construction on overtopping dams for rivers, reservoirs and scenic water.
Description
Technical field:
The present invention relates to a kind of ecological mill weir and construction method thereof crossed.Belong to nearly natural water resource field of engineering technology.
Background technology:
Traditionally, what water resource utilization was mainly paid close attention to is the resource functions such as agricultural irrigation, industry and living water use, generating and shipping, and the value of water resource is only presented as the resource value that the mankind can utilize.In history, the mankind have built various hydraulic engineerings, and these engineerings have been made huge contribution to socioeconomic development on the one hand, but in this simultaneously, also Ecology and Water Environment System have been caused to interference in various degree.Because hydraulic engineering is in the organic connections of having blocked in varying degrees between biology and environment, has changed the habitat of the ecological system of Natural Water, thereby caused biocoene diversity to decline, and the self-purification capacity of water body has been caused to certain influence.Along with the increase of people to hydraulic engineering drawback understanding; when hydraulic engineering construction; the theory such as Eco-Design, ecological protection is incorporated gradually; thereby produced " near natural water resource engineering "; this class engineering had both possessed specific water conservancy function, can meet the demand of socio-economic development, also took into account the demand of aquatic ecosystem health and sustainability simultaneously; can realize the unification of water conservancy function and ecosystem function, reach the harmonious coexistence of man and nature.
In hydraulic engineering construction, cross mill weir and refer to as retaining water body, raise upper pond level, meet field irrigation, control the demands such as river channel erosion and the provisional or permanent water conservancy projects built.In the construction of the engineerings such as artificial swamp, water ecosystem reparation, even for water distribution, improve the water quality purification function of aquatic ecosystem, also many places had been applied to and had crossed mill weir.In the pool, storehouse, crossing mill weir is the principal works measure that waters, shoal water level is controlled, and by crossing the construction of mill weir, can retain water body, increases current in the time of staying of shoal area, purifies the pool, storehouse water body, improves water quality; In channel, cross overflow weir or water distribution weir that mill weir is mainly applied as open channel.At present, the mill weir form of structure of crossing conventionally adopting has Tu Shiyan, steel concrete to cross mill weir, steel sheet pile weir and soft rubber waterproofing materials to cross mill weir etc.For the various mill weirs of crossing, forefathers have carried out a large amount of research, have and take the Tu Shiyan that chemical fibre woven cloth and earth material be material (CN 1209488, CN 101614017, CN20124582), have and take the steel sheet pile weir (CN 1837512, and CN 101368389) that steel plate and steel pipe be material, have with soft rubber waterproofing materials, make cross mill weir (CN 101205711).But these construction of crossing mill weir are all the Hydraulic Engineering Design thinkings based on traditional, do not consider the factor of ecological protection, ecological management, do not meet nearly natural water resource engineering design theory.For addressing this problem, forefathers combine mistake mill weir with water plant, have proposed Aquatic-Plant Bed weir (CN 1776109, and CN 2837378), and owing to having planted water plant, this mill weir of crossing, in dash, can reach the object purifying water.But this weir discharge capacity is relatively low, and impact resilience is poor, and operation expense is high.
Summary of the invention:
The present invention has overcome the existing deficiency of crossing mill weir, and hydraulic engineering and ecological protection are merged, and builds the ecological mill weir of crossing.Specifically, utilize exactly steel concrete to build the waterproof or permeable mill weir core-wall of crossing, core-wall basis is implanted underground, meets ecological stability requirement of crossing mill weir.Cross on the ground mill weir core-wall both sides and pile up jackstone, on jackstone cover, timber is wedged in two sidelines on mill weir base excessively continuously in galvanized wire cage or edge, meets the stable condition of mill weir jackstone.
The present invention utilizes steel concrete to construct ecological mill weir core-wall and the basis thereof crossed, and specifically comprises following two aspects, and the first, more than the strength grade of concrete C20 of impervious core, more than impervious grade P6, more than freeze proof grade F150; Strength grade of concrete C10～the C20 of permeable core-wall, more than freeze proof grade F100, in permeable core-wall, containing granular aggregate, aggregate size is 2.5mm～10mm, aggregate accounts for the more than 60% of concrete gross mass.The side slope in core-wall cross section can be linear, fold-line-shaped or arc.
Central wall of the present invention basis is implanted underground, according to the hydraulic balance of waterproof or permeable core-wall both sides, calculates, and depending on concrete condition, determines core-wall base widths and cross section side slope, and core-wall basis implantation depth.Between core-wall basis and ground, bed course is set, to prevent the disturbance of ground.The plain concrete that bed course all adopts strength grade to be not less than C15 is constructed, and thickness is determined on a case-by-case basis, generally more than 100mm.
The ecology that the present invention constructs is crossed mill weir core-wall and is kept at a certain distance away a deformation joint need be set, and with the destruction that prevents that the factors such as differential settlement from causing, seam is apart from being determined on a case-by-case basis.
Ecology in the present invention is crossed the construction of mill weir core-wall and can be constructed by the mode of earth excavation, fluid concrete, the backfill earthwork, the front table soil of substrate must removing totally filled on core-wall basis, and by the foundation surface soil layer compacting after cleaning, after basis pours, the backfill earthwork, and by backfill compaction.As thicker in riverbed bottom rock decay layer, cannot all remove, also can be by completing to modes such as riverbed boring, slip castings.
On ground provided by the invention, cross that the jackstone of piling up mill weir core-wall both sides can be that the quality such as granite, limestone are fine and close, hard, excellent in durability, be easy to the piece stone of selection.The antihunt means of crossing mill weir jackstone are that one or both in the methods such as timber are wedged in two sidelines on galvanized wire cage and mistake mill weir base, edge continuously, to guarantee the stability of jackstone structure, the theoretical foundation that method is selected is size and the hydraulics stability calculation of piece stone material.After piling up jackstone, the ecological side slope ratio of crossing mill weir should be greater than 1: 2, to increase the contact area of current territory jackstone, improves drop water aeration effect.
The core design theory of contemporary nearly natural water resource engineering science that this ecology has been crossed mill weir design indicates.Its marrow is; guarantee on the one hand the mechanical strength of hydraulic engineering; lowered on the other hand the extent of damage of river channel ecology system; by jackstone, increase reoxygenation area and the aeration time (Fig. 2) of overcurrent water body, increase reoxygenation amount, improve drop water aeration effect; for providing existence, aquatile (animal, plant and microorganism) perches space; the bio-diversity of protection river ecosystem, the self-purification capacity of raising river water, the aesthetic of landscape that strengthens river is worth.This technology simple and fast, cost is low, and operation maintenance is convenient, applied widely, can be applicable to the crossing during mill weir constructs of river, Ku Tang, landscape water body.
Accompanying drawing explanation:
Ecological mill weir sectional drawing (the 1 ecological mill weir impervious core of crossing of crossing of Fig. 1 impervious core; 2 jackstones; 3 ground; 4 timbers; 5 core-wall bases; 6 galvanized wire cages).
Ecological mill weir sectional drawing (the 1 ecological permeable core-wall of mill weir of crossing of crossing of the permeable core-wall of Fig. 2; 2 jackstones; 3 ground; 4 timbers; 5 core-wall bases; 6 galvanized wire cages).
Ecological mill weir top view (the 1 ecological mill weir impervious core of crossing of crossing of Fig. 3 impervious core; 2 jackstones; 3 timbers).
Ecological mill weir top view (the 1 ecological permeable core-wall of mill weir of crossing of crossing of the permeable core-wall of Fig. 4; 2 jackstones; 3 galvanized wire cages).
Schematic diagram (1 current in flow field when Fig. 5 impervious core current are flowed through jackstone; 2 jackstones; The 3 ecological mill weir impervious cores of crossing).
Flow field schematic diagram (1 current when the permeable core-wall current of Fig. 6 are flowed through jackstone; 2 jackstones; The 3 ecological permeable core-walls of mill weir of crossing).
Ecological mill weir embodiment 1 cross section Parameter Map (1 ground of crossing of Fig. 7; 2 jackstones; 3 steel concrete; 4 timbers).
Ecological mill weir embodiment 2 cross section Parameter Map (1 ground of crossing of Fig. 8; 2 jackstones; 3 steel concrete; 4 galvanized wire cages).
The specific embodiment
Below by specific embodiment, the inventive method is described in detail.
Project Areas in this example is arranged in river, is mainly used in regulating water level, expands the water surface, improves water quality purification function, strengthens the landscape effect of aquatic ecosystem.The ecological long 80m of mill weir that crosses, cross sectional shape is trapezoidal, lower bottom width 5.4m, upper bottom width 1.2m.Core-wall is permeable, gos deep into below ground 0.5m, the above 0.7m in ground.Cross the wide 0.2m in mill weir core-wall top, the wide 5.4m in bottom, both sides are arc.It is 0.5m that the underground degree of depth is imbedded on core-wall basis, meets ecological stability requirement of crossing mill weir.Core-wall basis adopts the method for boring, grouting to construct, and core-wall base concrete thickness is 0.2m.Core-wall and basis thereof are reinforced concrete structure, strength grade of concrete C25, impervious grade P6, freeze proof grade F150.Core-wall arranges deformation joint, and seam distance is 20mm.Between core-wall basis and ground, bed course is set, bed course all adopts C20 plain concrete, cushion thickness 100mm, and each limit goes out foundation width 100mm.In ecology, cross mill weir core-wall both sides and pile up jackstone, jackstone adopts red granite, and particle size range is at 300mm-500mm.The timber of wedging continuously diameter 6cm along two sidelines crossing the trapezoidal base of mill weir, the long 1.2m of timber, wedges underground 1.0m, 0.2m on reservation area.Met the stable condition of mill weir jackstone.It is 1: 3 that the ecology of building up is crossed mill weir side slope ratio, and specific design parameter is shown in Fig. 7 and accompanying drawing explanation.
Project Areas in this example is positioned at Ku Tangzhong, is mainly used in retaining water body, increases current in the time of staying of shoal area, purifies the pool, storehouse water body, improves water quality.The ecological long 10m of mill weir that crosses, cross sectional shape is trapezoidal, lower bottom width 4.4m, upper bottom width 1.2m.Core-wall is waterproof type, gos deep into below ground 0.4m, the above 0.7m in ground.Cross the wide 0.2m in mill weir core-wall top, the wide 4.4m in bottom, both sides are fold-line-shaped.It is 0.3m that the underground degree of depth is imbedded on core-wall basis, meet ecological stability requirement of crossing mill weir, core-wall base concrete thickness is 0.15m, core-wall basis adopts the mode of earth excavation, fluid concrete, time field earthwork to construct, front table soil on bank slope must removing totally filled on core-wall basis, and by the foundation surface soil layer compacting after cleaning.Core-wall and basis thereof are reinforced concrete structure, strength grade of concrete C20, impervious grade P6, freeze proof grade F150.Owing to crossing, mill weir is shorter, and core-wall and basis thereof do not arrange deformation joint.Between core-wall basis and ground, bed course is set, bed course all adopts C15 plain concrete, cushion thickness 100mm, and each limit goes out foundation width 100mm.In ecology, cross mill weir core-wall both sides and pile up jackstone, jackstone adopts white limestone, and particle size range is at 100mm-300mm.Due to ecology, to cross mill weir less, and the antihunt means of jackstone adopt galvanized wire cage, and galvanized wire cage adopts mild steel wire, and gauge of wire is at 2.0mm between 4.0mm, and the tensile strength of steel wire is greater than 380Mpa, meets the stable condition of mill weir jackstone.It is 1: 4 that the ecology of building up is crossed mill weir side slope ratio, increases drop water aeration and effects of purification quality, and specific design parameter is shown in Fig. 8 and accompanying drawing explanation.
Claims (1)
1. an ecological construction method of crossing mill weir, it is characterized in that, utilize steel concrete to build the waterproof or permeable mill weir core-wall of crossing, core-wall basis is implanted underground, meet ecological stability requirement of crossing mill weir, cross on the ground mill weir core-wall both sides and pile up jackstone, on jackstone cover, timber is wedged in two sidelines on mill weir base excessively continuously in galvanized wire cage or edge, meet the stable condition of jackstone, this ecological construction of crossing mill weir can improve the drop water aeration effect of overcurrent water body, for providing existence, aquatile perches space, thereby improve the self-purification capacity of water body, embodied the theory of contemporary nearly natural water resource engineering science, can be applicable to river, the pool, storehouse, during the mistake mill weir of landscape water body is constructed, ecological core-wall and the basis thereof of crossing mill weir consists of steel concrete, specifically comprise following two aspects, first, more than the strength grade of concrete C20 of impervious core, more than impervious grade P6, more than freeze proof grade F150, strength grade of concrete C10～the C20 of permeable core-wall, more than freeze proof grade F100, in permeable core-wall, containing granular aggregate, aggregate size is 2.5mm～10mm, aggregate accounts for the more than 60% of concrete gross mass, the second, the side slope in core-wall cross section is linear, fold-line-shaped or arc, according to the hydraulic balance of waterproof or permeable core-wall both sides, calculate, depending on concrete condition, determine core-wall base widths and cross section side slope, and core-wall basis implantation depth, between core-wall basis and ground, bed course is set, bed course adopts strength grade to be not less than C15 plain concrete and constructs, and meets ecological stability requirement of crossing mill weir, waterproof or permeable steel concrete core-wall and basis thereof all arrange deformation joint, and seam is apart from being determined on a case-by-case basis, on ground, crossing the jackstone of piling up the waterproof or permeable core-wall of mill weir both sides is granite or limestone, after piling up jackstone, the ecological side slope ratio of crossing mill weir should be greater than 1:2, to increase the contact area of current territory jackstone, improves drop water aeration effect, the antihunt means of crossing mill weir jackstone are that one or both in timber method are wedged in two sidelines on galvanized wire cage and mistake mill weir base, edge continuously, and the theoretical foundation that method is selected is size and the hydraulics stability calculation of piece stone material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010292264.0A CN102234995B (en) | 2010-09-27 | 2010-09-27 | Ecological overtopping dam and construction method thereof |
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| CN201010292264.0A CN102234995B (en) | 2010-09-27 | 2010-09-27 | Ecological overtopping dam and construction method thereof |
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| CN102234995A CN102234995A (en) | 2011-11-09 |
| CN102234995B true CN102234995B (en) | 2014-03-19 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105297671A (en) * | 2015-09-30 | 2016-02-03 | 山东省分析测试中心 | Ecological comprehensive treatment system of northern mountain river channel and construction method thereof |
| CN107905180A (en) * | 2017-11-13 | 2018-04-13 | 华北电力大学 | A kind of ecology based on biomembrane principle crosses mill weir |
| CN112962772A (en) * | 2021-03-02 | 2021-06-15 | 北京雨人润科生态技术有限责任公司 | Drainage channel and rainwater regulation and storage system |
| CN113863340A (en) * | 2021-10-13 | 2021-12-31 | 中电建十一局工程有限公司 | Cofferdam construction method under complex terrain condition |
| CN115419118B (en) * | 2022-09-30 | 2024-01-16 | 武汉理工大学 | Offshore pile foundation scour prevention device and installation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85101234A (en) * | 1985-04-01 | 1987-01-17 | 瓦若斯皮特·突道曼约斯 | The protection lake prevents to be caused by diving the method for eutrophication |
| CN1241538A (en) * | 1998-07-10 | 2000-01-19 | 李敬生 | Intensified ecological sewage decontaminating method for rivers, channels and ditches |
| JP2003020631A (en) * | 2001-07-06 | 2003-01-24 | Shimizu Corp | Impervious structure and construction method for fill dam |
| JP2003138546A (en) * | 2001-11-05 | 2003-05-14 | Gunma Ishizumi Kyodo Kumiai | Masonry dam and its construction method |
| CN1858008A (en) * | 2006-06-01 | 2006-11-08 | 上海交通大学 | Method for preventing and controlling eutrophic water bloom in drinking water source |
| CN101029480A (en) * | 2007-03-21 | 2007-09-05 | 任红星 | Dyke gabion baffling structure and method for planting hydrophyte by the structure |
-
2010
- 2010-09-27 CN CN201010292264.0A patent/CN102234995B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85101234A (en) * | 1985-04-01 | 1987-01-17 | 瓦若斯皮特·突道曼约斯 | The protection lake prevents to be caused by diving the method for eutrophication |
| CN1241538A (en) * | 1998-07-10 | 2000-01-19 | 李敬生 | Intensified ecological sewage decontaminating method for rivers, channels and ditches |
| JP2003020631A (en) * | 2001-07-06 | 2003-01-24 | Shimizu Corp | Impervious structure and construction method for fill dam |
| JP2003138546A (en) * | 2001-11-05 | 2003-05-14 | Gunma Ishizumi Kyodo Kumiai | Masonry dam and its construction method |
| CN1858008A (en) * | 2006-06-01 | 2006-11-08 | 上海交通大学 | Method for preventing and controlling eutrophic water bloom in drinking water source |
| CN101029480A (en) * | 2007-03-21 | 2007-09-05 | 任红星 | Dyke gabion baffling structure and method for planting hydrophyte by the structure |
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