CN111608138A - Construction method for slope protection of ecological landscape of urban internal lake - Google Patents
Construction method for slope protection of ecological landscape of urban internal lake Download PDFInfo
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- 238000010276 construction Methods 0.000 title claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000002689 soil Substances 0.000 claims abstract description 6
- 239000004575 stone Substances 0.000 claims description 25
- 241000196324 Embryophyta Species 0.000 claims description 18
- 239000004567 concrete Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 6
- 235000011613 Pinus brutia Nutrition 0.000 claims description 6
- 241000018646 Pinus brutia Species 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000002023 wood Substances 0.000 claims description 5
- 210000001015 abdomen Anatomy 0.000 claims description 3
- 230000009194 climbing Effects 0.000 claims description 3
- 230000003628 erosive effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 239000011178 precast concrete Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 239000011435 rock Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 230000005789 organism growth Effects 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 238000010187 selection method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 230000001680 brushing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- -1 cobblestones Substances 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
- E02B3/066—Quays
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
- E02B3/08—Structures of loose stones with or without piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
- E02B3/14—Preformed blocks or slabs for forming essentially continuous surfaces; Arrangements thereof
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Revetment (AREA)
Abstract
The invention belongs to the field of water resources and environment, and relates to a construction method of ecological landscape slope protection of an urban internal lake. The method comprises the following steps: the current slope protection failure mechanism analysis: according to the method, the damage conditions of the current situation of a shoreline and a revetment along the urban internal lake are investigated, and the factors such as an actual slope surface, water depth before the slope, wind direction and water flow are combined to analyze the damage mechanism of the shoreline; the ecological slope protection form selection and construction method includes the steps of analyzing classification and type characteristics of ecological bank protection according to geological conditions of lake-surrounding lakes in cities, water ecological environments, river bank foundation environments and landscape requirements, researching how to utilize advantages of original terrains, selecting a proper slope protection form in a segmented and regional mode, and meeting the functionality and landscape of bank protection engineering to the maximum extent. The invention utilizes the technical means of combining plants or plants and engineering to realize mutual conservation of water, soil and organisms, is suitable for the nature-imitated state of organism growth, and integrates the functions of ecology, landscape and self-purification into a whole.
Description
Technical Field
The invention belongs to the field of water resources and environment, and relates to a construction method of ecological landscape slope protection of an urban internal lake.
Background
In the prior art, lake bank protection in cities is mostly in the forms of natural soil slope protection, simple wood pile fence slope protection, vertical stone masonry retaining wall slope protection, concrete hexagonal block slope protection, hard platform bank slope and the like. The traditional revetment mostly needs dry land construction conditions during construction, has long construction period and many temporary measures, and is easy to cause pollution such as dust flying during the construction of the revetment in lakes in cities. After the construction is finished, the rainwater and the wind waves are easily damaged under the brushing, the appearance is not attractive, and the urban landscape requirements can not be well met.
The traditional revetment mostly needs dry land construction conditions during construction, has long construction period and many temporary measures, and is easy to cause pollution such as dust flying during the construction of the revetment in lakes in cities. After the construction is finished, the rainwater and the wind waves are easily damaged under the brushing, the appearance is not attractive, and the urban landscape requirements can not be well met.
Disclosure of Invention
In order to solve the problems of the prior art, the invention provides a construction method of ecological landscape slope protection of an urban internal lake. The invention can be normally constructed without dry land construction, shortens the construction period and lightens the influence of construction on the surrounding environment. On the premise of ensuring the stability and safety of the revetment, the revetment integrates the functions of ecology, landscape and self-purification.
In order to achieve the purpose, the invention adopts the following technical scheme: a construction method for protecting ecological landscape in an urban lake comprises the following steps:
1. the current slope protection failure mechanism analysis:
according to the method, the damage conditions of the current situation of a shoreline and a revetment along the urban internal lake are investigated, and the factors such as an actual slope surface, water depth before the slope, wind direction and water flow are combined to analyze the damage mechanism of the shoreline;
2. ecological slope protection form selection and construction:
considering the natural state maintenance of a lake bank section with a large slope or a belly land, matching with the planting of plants, when the slope of a bank slope exceeds a natural repose angle or the soil quality is unstable, carrying out artificial erosion prevention and reinforcement treatment on a river bank, and properly using rock blocks, cobblestones, wood piles and the like to build a state of a zigzag bank line and a fluctuating bank slope;
secondly, building a hard retaining wall at the steep bank of the bank slope, wherein the underwater pine pile does not expose out of the water surface, the riprap is used as a material 5-10 cm below the water surface, the riprap is used as a material above the water surface, the landscape stone is preferably selected from lake stone, quartz stone, weathered yellow stone, large pebbles and the like,
thirdly, in areas with serious damages to main wind direction revetments such as northern wind and western wind on the lake surface, wood-like concrete pile revetments are adopted, construction is carried out by a special pile driver for concrete piles during construction, pebbles, landscape stones and the like are paved on gentle slopes on the bank in a dotted manner, and aquatic plant planting is combined;
fourthly, for the side slopes of the dikes in lakes where the wind waves are large and the side slopes are easy to wash, the prefabricated interlocking blocks are laid below the normal water level to protect the slopes to keep the stability of the structures of the slopes under the washing of the wind waves, then plants are sown among gaps of the prefabricated blocks in an inserting mode or in a spraying mode, and plants are planted above the normal water level in a combined mode of landscape;
fifthly, for the high fill roadbed side slope, the water depth is deeper, so that dry land construction conditions are not convenient to create or large cost sections are needed for creating the dry land construction conditions, the precast concrete planting box is used for sinking to a certain elevation and is embedded and fixed on the slope;
planting climbing plants and lianas on the top of the hard retaining wall to soften the engineering trace of the retaining wall.
The landscape stone in the step 2 is lake stone or quartz or weathered yellow stone or pebbles.
And step 2, the retaining wall is in a chain shape.
Compared with the prior art, the invention has the beneficial effects that: the ecological landscape slope protection method utilizes the technical means of combining plants or plants with engineering, takes account of the ecological effect of the engineering on the premise of ensuring the stability and the safety of the slope protection structure, achieves mutual conservation of water, soil and organisms, is suitable for the nature-imitated state of organism growth, and enables the ecological landscape slope protection to integrate the ecological, landscape and self-cleaning functions;
the construction can be normally carried out under the condition that the dry land construction is not available, the construction period is shortened, and the influence of the construction on the surrounding environment is reduced. The ecological landscape slope after construction can meet the requirement of grade 5 (the standard recurrence period is more than or equal to 10 years and less than 20 years) of the embankment project in GB50286-2013 'design Specification of embankment project'; the seismic intensity can reach more than 6 grades.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.
Fig. 1 is a diagram showing the effect of natural bank protection and stone throwing and foot fixing in the implementation of the invention.
Fig. 2 is a graph showing the effect of fixing feet of the wood-like pile in the implementation of the invention.
Figure 3 is a graph of the effectiveness of interlocking block revetment in the practice of the present invention.
Fig. 4 is a diagram of the effect of medium and small retaining wall revetment construction in accordance with the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples, which are provided only for illustrating the present invention and are not intended to limit the scope of the present invention.
Please refer to fig. 1-4, which illustrates a construction method of ecological landscape slope protection for urban lakes, comprising the following steps:
1. the current slope protection failure mechanism analysis:
according to the method, the damage conditions of the current situation of a shoreline and a revetment along the urban internal lake are investigated, and the factors such as an actual slope surface, water depth before the slope, wind direction and water flow are combined to analyze the damage mechanism of the shoreline;
2. ecological slope protection form selection and construction:
according to geological conditions of lake surrounding lakes in cities, water ecological environment, river channel shore-based environment and landscape requirements, classification and type characteristics of ecological revetments are analyzed, the advantages of original landforms are utilized, the principle of scale minimization, appearance gentle slope, internal and external hydration, surface roughening, material naturalization and cost economy is followed, and a proper slope protection form is selected by sections and regions, so that the functionality and the landscape of a revetments project are met to the maximum extent.
The aim of stabilizing the river bank is achieved by considering the natural state maintenance of the lake bank section with a large slope or belly land and matching with the planting of plants. When the slope of the bank slope exceeds the natural repose angle or the soil quality is unstable, the river bank needs to be artificially subjected to erosion prevention and reinforcement treatment, and a bank line zigzag state and a bank slope fluctuating state are built by properly applying stones, cobblestones, wood piles and the like, so that the stiffness and rigidity of the landscape can be broken to a certain degree, the landscape tends to be natural, and the biological diversity is realized.
Secondly, building a hard retaining wall at the bank slope steep bank place, and keeping stability by gravity; the underwater pine pile does not expose out of the water surface (mainly plays a role of fixing and polishing stones), riprap is used as a material 5-10 cm below the water surface, and landscape stones (lake stones, quartz stones, weathered yellow stones, large pebbles and the like) are used above the riprap, so that the purposes of saving and beautifying are achieved. At this time, the retaining wall does not continuously surround the water surface for a circle, and is in the shape of a chain, but is distributed intermittently and suddenly.
In regions with serious damage to main wind direction revetments such as northern wind and western wind on the lake surface, wood-like concrete piles are adopted for protecting the slopes, a special pile driver for the concrete piles is used for construction during construction, pebbles, scenic stones and the like are paved on gentle slopes on the bank in a dotted manner, and the natural ecological sense is highlighted by combining with aquatic plant planting;
fourthly, for the side slopes of the dikes in lakes where the wind waves are large and the side slopes are easy to wash, the prefabricated interlocking blocks are laid below the normal water level to protect the slopes to keep the stability of the structures of the slopes under the washing of the wind waves, then plants are sown or sprayed among gaps of the prefabricated blocks, and the landscape planting plants are combined above the normal water level, so that the stability requirements of the structures are met, and the ecological landscape requirements are met;
for the high fill roadbed side slope, the water depth is deep, so that dry land construction conditions are not convenient to create or land sections requiring a large amount of cost are created, a precast concrete planting box, namely a small caisson slope protection is used instead, the slope is sunk to a certain height and is embedded and fixed on the slope surface, the hard side slope is softened by aquatic plants, the side slope is weakened, and beautifying and landscape effects are achieved;
sixthly, planting climbing plants, vines and the like on the top of the hard retaining wall for the parts such as squares, retaining walls and the like which are built, and softening the engineering traces of the retaining wall.
The content of the invention is implemented on a Poyang county ring east lake comprehensive treatment engineering project, and the specific implementation scheme is as follows:
the damage condition of the east lake current shore protection is carefully investigated before construction, and then the damage mechanism of the bank slope is analyzed, the damage reason of the bank slope is found out, and a coping method is found. The bank protection construction is carried out by combining 6 bank protection forms (natural type, small retaining wall type, wood-like pile type, interlocking block type, small caisson type and hard softening type) according to different foot protection and face protection materials.
(1) Natural revetment construction distribution range: the length of the gentle slope section from the west channel and the two local roads of the east lake to the east and west banks of the lakeside road is about 2157 m.
(2) Little barricade formula revetment distribution range: mainly concentrated on a steep slope in the north area of the great east lake road or a part with serious scour, wherein the west bank is connected to a heaven main church from a lakeside road; the intersection of the east bank from the long embankment road to the west channel and the five-road is about 3315m in length.
(3) Wood pile imitating type revetment distribution range: the method mainly focuses on the damaged positions of the original pine pile revetment in the main wind directions such as northwind around east lake and west wind, wherein the length of the original pine pile revetment is about 1313m when the original pine pile revetment is focused on the side of the mother pottery garden and the east lake close to the river.
(4) Interlocking block type revetment distribution range: mainly concentrated near the lakeside road and has a length of about 970 m.
(5) Small caisson type revetment distribution range: mainly focuses on the road section near the entrance of school, blue bay and Poyang, and has a length of about 2310 m.
(6) Hard revetment softening distribution range: mainly concentrated in the area of the established park north of the great way of the east lake, and the length is about 690 m.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (3)
1. A construction method for protecting ecological landscape in an urban lake is characterized by comprising the following steps:
1. the current slope protection failure mechanism analysis:
according to the method, the damage conditions of the current situation of a shoreline and a revetment along the urban internal lake are investigated, and the factors such as an actual slope surface, water depth before the slope, wind direction and water flow are combined to analyze the damage mechanism of the shoreline;
2. ecological slope protection form selection and construction:
considering the natural state maintenance of a lake bank section with a large slope or a belly land, matching with the planting of plants, when the slope of a bank slope exceeds a natural repose angle or the soil quality is unstable, carrying out artificial erosion prevention and reinforcement treatment on a river bank, and properly using rock blocks, cobblestones, wood piles and the like to build a state of a zigzag bank line and a fluctuating bank slope;
secondly, building a hard retaining wall at the steep bank of the bank slope, wherein the underwater pine pile does not expose out of the water surface, the riprap is used as a material 5-10 cm below the water surface, the riprap is used as a material above the water surface, the landscape stone is preferably selected from lake stone, quartz stone, weathered yellow stone, large pebbles and the like,
thirdly, in areas with serious damages to main wind direction revetments such as northern wind and western wind on the lake surface, wood-like concrete pile revetments are adopted, construction is carried out by a special pile driver for concrete piles during construction, pebbles, landscape stones and the like are paved on gentle slopes on the bank in a dotted manner, and aquatic plant planting is combined;
fourthly, for the side slopes of the dikes in lakes where the wind waves are large and the side slopes are easy to wash, the prefabricated interlocking blocks are laid below the normal water level to protect the slopes to keep the stability of the structures of the slopes under the washing of the wind waves, then plants are sown among gaps of the prefabricated blocks in an inserting mode or in a spraying mode, and plants are planted above the normal water level in a combined mode of landscape;
fifthly, for the high fill roadbed side slope, the water depth is deeper, so that dry land construction conditions are not convenient to create or large cost sections are needed for creating the dry land construction conditions, the precast concrete planting box is used for sinking to a certain elevation and is embedded and fixed on the slope;
planting climbing plants and lianas on the top of the hard retaining wall to soften the engineering trace of the retaining wall.
2. The construction method for the ecological landscape slope protection of the urban internal lake according to claim 1, wherein the landscape stone in the step 2 is lake stone or quartz or weathered yellow stone or pebbles.
3. The construction method for the ecological landscape slope protection of the urban lakes according to claim 1, wherein the retaining wall in the step 2 is in a chain shape.
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| CN202010428571.0A CN111608138A (en) | 2020-05-20 | 2020-05-20 | Construction method for slope protection of ecological landscape of urban internal lake |
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| CN202010428571.0A CN111608138A (en) | 2020-05-20 | 2020-05-20 | Construction method for slope protection of ecological landscape of urban internal lake |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114014444A (en) * | 2022-01-05 | 2022-02-08 | 南大（常熟）研究院有限公司 | Construction method of high-ecological-elasticity small-micro wetland ecosystem |
| CN115323986A (en) * | 2022-07-22 | 2022-11-11 | 上海二十冶建设有限公司 | Combined revetment construction method for river channel in landscape area |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114014444A (en) * | 2022-01-05 | 2022-02-08 | 南大（常熟）研究院有限公司 | Construction method of high-ecological-elasticity small-micro wetland ecosystem |
| CN115323986A (en) * | 2022-07-22 | 2022-11-11 | 上海二十冶建设有限公司 | Combined revetment construction method for river channel in landscape area |
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