CN113089695B - Landslide body side slope ecological restoration structure and method - Google Patents
Landslide body side slope ecological restoration structure and method Download PDFInfo
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- CN113089695B CN113089695B CN202110500240.8A CN202110500240A CN113089695B CN 113089695 B CN113089695 B CN 113089695B CN 202110500240 A CN202110500240 A CN 202110500240A CN 113089695 B CN113089695 B CN 113089695B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- 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
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/205—Securing of slopes or inclines with modular blocks, e.g. pre-fabricated
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/22—Adaptations of pumping plants for lifting sewage
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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Abstract
The invention discloses a landslide mass side slope ecological restoration structure and a restoration method, comprising the following steps: a plurality of water reservoirs are arranged and dug on the slope surface of the landslide body; the bottom rock layer is formed by large rocks paved on a flat ground at the slope bottom of the landslide body; the geotextile is laid on the surface of the bottom rock layer; the drainage pipes are arranged on the geotextile, are horizontally and uniformly arranged along the direction vertical to the landslide body, a water suction pump is arranged at a water outlet of each reservoir, water guide pipes are connected to two ends of each water suction pump, the other ends of the water guide pipes are connected with the drainage pipes, and finally, an upper rock layer is formed by small rocks laid above the drainage pipes, and the steel reinforcement framework is arranged by penetrating through the upper rock layer; the geocell foreign soil cultivation layer is arranged on the upper rock layer; the slope ecological restoration structure and the slope ecological restoration method disclosed by the invention have a good slope ecological restoration effect.
Description
Technical Field
The invention belongs to the technical field of geological engineering, and particularly relates to a landslide body side slope ecological restoration structure and a construction method for landslide body side slope ecological restoration.
Background
With the rapid development of social economy, the construction of large-scale roads, hydropower, municipal works, mining projects and the like causes the natural landscape and ecological environment of the mountain to be seriously damaged, a large number of exposed landslides are formed, the slopes of the landslides are extremely unstable, and if reasonable regulation and ecological restoration are not carried out, a series of secondary disasters and ecological environment problems can be caused, so that the safety of human life and property is threatened.
At present, two types of methods are mainly used for ecological restoration of the side slope: one is to simply use plants to protect and green the side slope, such as plant fences, plant piles, tree planting, grass planting peels and the like; the other is to adopt plants and slope protection buildings or geotechnical materials to protect and green the side slope, such as a greening wall, a sash greening method, a plant belt greening method, a geotechnical net greening method and the like. However, the greening methods have specific requirements on gradient, soil texture, construction, irrigation conditions and the like, and cannot be directly applied to ecological restoration of the landslide body side slope; especially in areas with sufficient rainfall or frequent extreme rainfall events, when excessive moisture cannot be discharged from the landslide body in time, the stability of the slope restoration system can be seriously influenced, and secondary disasters are induced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a landslide body side slope ecological restoration structure which comprises the following components: on one hand, the stability of the side slope is improved by embedding a drainage system on the basis of engineering slope protection; on the other hand can make full use of the internal water resource of landslide in order to ensure side slope restoration vegetation irrigation demand when drainage to promote side slope vegetation restoration effect, and further promote side slope stability through the soil protection solid slope effect of vegetation root system.
The technical scheme adopted by the invention is that the landslide ecological restoration structure comprises: a plurality of water reservoirs are arranged and dug on the slope surface of the landslide body;
the bottom rock layer consists of large rocks paved on the flat ground at the bottom of the slope of the landslide body side slope;
the geotextile is laid on the surface of the bottom rock layer;
the drainage pipes are arranged on the geotextile, are horizontally and uniformly arranged along the direction vertical to the landslide body, a water suction pump is arranged at a water outlet of each water storage tank, two ends of each water suction pump are connected with water diversion pipes, the water diversion pipes positioned on the outer sides of the water storage tanks are arranged along the length direction of the landslide body, the other ends of the water diversion pipes 5 are connected with the corresponding drainage pipes 3, and the other ends of the drainage pipes 3 extend out of the geotextile 6;
the steel bar framework comprises steel bar grids which are horizontally arranged and form grids, and nodes of the steel bar grids are also connected with vertically arranged steel bars;
the upper rock layer consists of small rocks paved above the drain pipe, and the steel reinforcement framework penetrates through the upper rock layer;
the geocell foreign soil cultivation layer is arranged on the upper rock layer.
The cistern inside wall is the ground layer, and the lateral wall of cistern is consolidated through the concrete, and the top of cistern is provided with the lid, includes leading water pipe and lower leading water pipe on the leading water pipe in the outside, and lower leading water pipe and the drain connection who corresponds pass through three-way connection between the leading water pipe and the lower leading water pipe, and another port end of tee bend end is connected with the irrigation pipe, and the other end of irrigation pipe is provided with the spray valve down, still is provided with the solenoid valve on the leading water pipe down.
The suction pump is a photovoltaic pump, a water level gauge and a controller are respectively arranged inside the reservoir, and the controller is respectively connected with the water level gauge, the suction pump, the water spray valve and the electromagnetic valve.
And small rock blocks are filled in gaps among the large rock blocks of the bottom rock layer.
The geocell foreign soil cultivation layer consists of a plurality of layers of geocells, steps are sequentially formed among the plurality of layers of geocells, and vegetation is planted in each layer of geocell.
When vegetation is planted in the geocell, shrubs and perennial herbs are planted in a combined manner, wherein the shrubs are any one or more of sea buckthorn, caragana, sabina vulgaris, spiraea ulmaria, elaeagnus pungens, clove and forsythia suspensa, and the perennial herbs are any one or more of dwarf cattle, pink, cherry-cherry, and wheatgrass.
The number of the drain pipes is not less than twice of the number of the water diversion pipes, one end of the drain pipe which is not connected with the water diversion pipes is contacted with the slope bottom of the landslide, and the other end of the drain pipe extends out of the geotextile.
The invention also discloses a landslide mass side slope ecological restoration method, which specifically comprises the following steps:
step 1: searching spring holes or water outlet points on the slope surface of a landslide body, then digging a plurality of water storage tanks at the lower sides of spring holes or water outlet points, mounting a water level gauge and a controller in each water storage tank, mounting water suction pumps at water outlets of the water storage tanks, connecting water guide pipes at two ends of each water suction pump, dividing the water guide pipes positioned outside the water storage tanks into an upper water guide pipe and a lower water guide pipe, mounting a tee joint between the upper water guide pipe and the lower water guide pipe, connecting the other end of the tee joint with an irrigation pipe, mounting a downward water spray valve at the other end of the irrigation pipe, mounting an electromagnetic valve on the lower water guide pipe, and connecting the controller with the water level gauge, the water suction pumps, the water spray valves and the electromagnetic valve respectively after the three-way joint is mounted;
step 2: removing sludge and garbage at the bottom of the side slope of the landslide body to keep the bottom of the landslide body flat;
and step 3: paving large rocks at the cleaned slope bottom, and filling small rocks into gaps among the large rocks to form a bottom rock layer;
and 4, step 4: laying geotextile on the bottom rock layer;
and 5: laying a plurality of drain pipes on the geotextile, wherein the drain pipes are horizontally and uniformly arranged along the direction vertical to the landslide body, one end of each drain pipe is connected with the lower water conduit, and the other end of each drain pipe extends out of the geotextile;
step 6: laying a steel bar framework on the geotextile, wherein the steel bar framework comprises steel bar grids which are horizontally arranged and form grids, and nodes of the steel bar grids are also connected with vertically arranged steel bars;
and 7: paving small rocks on the drain pipe to form an upper rock layer, and arranging the steel reinforcement framework to penetrate through the upper rock layer;
and 8: the upper rock layer is provided with a geocell foreign soil cultivation layer which consists of a plurality of layers of geocells, the plurality of layers of geocells sequentially form steps, and vegetation is planted in each layer of geocell.
In the step 5, the number of the drain pipes is not less than twice of the number of the water diversion pipes, one end of the drain pipe which is not connected with the water diversion pipes is contacted with the slope bottom of the slope body, and the other end of the drain pipe extends out of the geotextile;
and 8, planting shrubs and perennial herbs in combination when planting vegetation in the geocell, wherein the shrubs are any one or more of sea buckthorn, caragana, sabina vulgaris, spiraea ulmaria, elaeagnus pungens, clove and fructus forsythiae, and the perennial herbs are any one or more of short cattle, pink, cherry girls and wheatgrass.
The invention has the beneficial effects that:
the invention relates to an ecological restoration structure for a landslide body side slope, which is mainly used for restoring the landslide body side slope, wherein the bottom of the side slope is subjected to foundation bottoming by using a rock layer, a drain pipe is also arranged in the rock layer, in addition, earthwork soil is adopted above the rock layer to cultivate low shrubs for slope stabilization, and as shrub plants have long growth period and slow closure, the thick and strong main root system can effectively fix shallow soil of the slope; the growth of the shrub plants in the middle period enters a vigorous period, and the plant slope protection effect is obvious; in addition, the shrub plant has the advantages of developed root system, high pulling strength, strong disaster resistance and the like, and is more favorable for exerting the soil stabilization and slope protection effects.
Drawings
FIG. 1 is a front view of an ecological restoration structure for a landslide mass side slope of the present invention;
FIG. 2 is a top view of the landslide ecological restoration structure of the present invention;
fig. 3 is a partial schematic view of a water reservoir of the landslide ecological restoration structure.
In the figure, 1, a reservoir, 2, a bottom rock layer, 3, a drain pipe, 4, a water pump, 5, a water guide pipe, 6, geotextile, 7, a steel reinforcement framework, 8, an upper rock layer, 9, a geocell soil dressing cultivation layer, 10, a cover, 11, a water level gauge, 12, an irrigation pipe, 13, a water spray valve and 14, an electromagnetic valve are arranged.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection solutions of the present invention are not limited thereto.
The invention discloses a landslide body side slope ecological restoration structure which comprises a water storage tank 1, a bottom rock layer 2, geotechnical cloth 6, a drain pipe 3, a steel bar framework 7, an upper rock layer 8 and a geocell soil replacement cultivation layer 9, wherein the water storage tank is shown in a figure 1-2; a plurality of water reservoirs 1 are arranged and dug on the slope surface of the landslide body; the bottom rock layer 2 consists of large rocks laid on the flat ground at the slope bottom of the landslide body, and small rock blocks are filled in gaps among the large rock blocks of the bottom rock layer 2; the geotextile 6 is laid on the surface of the bottom rock layer 2; the drainage pipes 3 are arranged on the geotextile 6, the drainage pipes 3 are horizontally and uniformly arranged along the direction vertical to the landslide body, a water suction pump 4 is arranged at the water outlet of each water storage tank 1, both ends of each water suction pump 4 are connected with water diversion pipes 5, the water diversion pipes 5 on the outer sides are arranged along the slope length direction of the landslide body, the other ends of the water diversion pipes 5 are connected with the corresponding drainage pipes 3, and the other ends of the drainage pipes 3 extend out of the geotextile 6; the steel bar framework 7 comprises steel bar grids which are horizontally arranged and form grids, nodes of the steel bar grids are also connected with vertically arranged steel bars, and the geocell foreign soil cultivation layer 9 is arranged on the upper rock layer 8; the function of the steel bar framework 7 is to avoid that different parts are stressed unevenly, so that individual parts sink and the stability of the individual parts is influenced; in addition, the restoration structure of the invention takes the large stone blocks as a supporting foundation, the small stone blocks are filled with joints and the reinforcing steel bar framework is laid to form a slope protection engineering body, which can be more suitable for the severe cold environment with severe freeze thawing or expansion and contraction, and the reinforced concrete engineering body is easy to crack or even collapse under the actions of freeze thawing or expansion and contraction.
The geocell foreign soil cultivation layer 9 consists of a plurality of layers of geocells, steps are sequentially formed among the plurality of layers of geocells, vegetation is planted in each layer of geocell, and the number of layers is designed according to the height of a side slope in practice, wherein 3 or 6 layers are commonly used; when vegetation is planted in the geocell of each layer, shrubs and perennial herbs are planted in a combined manner, wherein the shrubs are any one or more of sea buckthorn, caragana, sabina vulgaris, spiraea ulmaria, elaeagnus pungens, clove and fructus forsythiae, and the perennial herbs are any one or more of short cattle, pink, cherry-cherry and wheatgrass; the mode of combining the grass and the shrub is adopted because the greening and soil and water conservation effects of the herbaceous plants in a short period are obvious, the roots of the shrubs are developed, but the shrubs grow slowly, and the stability of the project is better facilitated in a middle and long period.
Example 2:
on the basis of the embodiment 1, as shown in fig. 3, further, the inner side wall of the reservoir 1 is a rock-soil layer, the outer side wall of the reservoir 1 is reinforced by concrete, the top of the reservoir 1 is provided with a cover 10, the outer water conduit 5 comprises an upper water conduit and a lower water conduit, the lower water conduit is connected with the corresponding drain pipe 3, the upper water conduit and the lower water conduit are connected through a tee joint, the other end of the tee joint is connected with an irrigation pipe 12, the other end of the irrigation pipe 12 is provided with a downward water spray valve 13, the lower water conduit is also provided with an electromagnetic valve 14, when the reservoir is arranged, a spring eye or a water outlet point is found through a slope of a landslide body, and then the reservoir 1 is built below the spring eye or the water outlet point, so that water in the spring eye or the water outlet point is collected together for drainage; the water pump 4 is a photovoltaic water pump, a water level gauge 11 and a controller are respectively arranged in the reservoir 1, and the controller is respectively connected with the water level gauge 11, the water pump 4, the water spray valve 13 and the electromagnetic valve 14; when the controller detects that the accumulated water detected by the water level meter reaches a certain height, the controller controls the photovoltaic water pump to start pumping water, the controller controls the water spraying valve 13 to be closed, the electromagnetic valve 14 is opened, finally, the accumulated water in the reservoir 1 sequentially flows out along with the downward water diversion and the water drainage pipe, the water level meter monitors the water level at any time, when the controller detects that the water level in the reservoir is lower than a certain water level, the controller controls the electromagnetic valve 14 and the water spraying valve 13 to be closed, a small part of the accumulated water is left in the reservoir and is used for irrigating the vegetation planted in the geocell at regular time, the intelligent drainage of the accumulated water in the reservoir is achieved through the controller, the water level meter 11 and the photovoltaic water pump, and meanwhile, the water source accumulated in the reservoir can be used for irrigating the vegetation.
Example 3:
on the basis of embodiment 2, further, the number of the drain pipes 3 is not less than twice the number of the water guide pipes 5, one end of the drain pipe 3 which is not connected with the water guide pipe 5 is in contact with the slope bottom of the side slope, the other end of the drain pipe 3 also extends out of the geotextile 6, and the drain pipe 3 which is not connected with the water guide pipe 5 is used as a hidden pipe and has the function of draining redundant water in the landslide body which does not enter the reservoir 1.
A landslide mass side slope ecological restoration method specifically comprises the following steps:
step 1: searching for spring eyes or water outlet points on the slope surface of a landslide body, then digging a plurality of water reservoirs 1 at the lower sides of spring eyes or water outlet points, installing a water level gauge 11 and a controller in each water reservoir 1, installing a water suction pump 4 at a water outlet of each water reservoir 1, connecting water guide pipes 5 at two ends of each water suction pump 4, dividing the water guide pipes 5 positioned outside the water reservoirs 1 into an upper water guide pipe and a lower water guide pipe, installing a tee joint between the upper water guide pipe and the lower water guide pipe, connecting the other end of the tee joint with an irrigation pipe 12, installing a downward water spray valve 13 at the other end of the irrigation pipe 12, installing an electromagnetic valve on the lower water guide pipe, and connecting the controller with the water level gauge 11, the water suction pump 4, the water spray valve 13 and the electromagnetic valve 14 respectively after the installation;
step 2: removing sludge and garbage at the bottom of the side slope of the landslide body to keep the bottom of the landslide body flat;
and step 3: paving large rocks at the cleaned slope bottom, and filling small rocks into gaps among the large rocks to form a bottom rock layer 2;
and 4, step 4: laying geotextile 6 on the bottom rock layer 2;
and 5: a plurality of drain pipes 3 are laid on the geotextile 6, the drain pipes 3 are horizontally and uniformly arranged along the direction vertical to the landslide body, one ends of the drain pipes 3 are connected with the lower water conduit, and the other ends of the drain pipes 3 extend out of the geotextile 6;
step 6: laying a steel bar framework 7 on the geotextile 6, wherein the steel bar framework 7 comprises steel bar grids which are horizontally arranged and form grids, and nodes of the steel bar grids are also connected with vertically arranged steel bars;
and 7: paving small rocks on the drain pipe 3 to form an upper rock layer 8, and arranging the steel reinforcement framework 7 to penetrate through the upper rock layer 8;
and 8: arranging a geocell foreign soil cultivation layer 9 on an upper rock layer 8, wherein the geocell foreign soil cultivation layer 9 consists of a plurality of layers of geocells, the plurality of layers of geocells sequentially form steps, vegetation is planted in each layer of geocell, and the number of layers is designed according to the height of a side slope in practice, and the number of layers is 3 or 6; when vegetation is planted in the geocell, shrubs and perennial herbs are planted in a combined mode, wherein the shrubs are any one or more of sea buckthorn, caragana, sabina vulgaris, spirea ulmaria, elaeagnus, clove and fructus forsythiae, and the perennial herbs are any one or more of dwarf cattle, pink, cherry-beauty and wheatgrass.
A landslide body side slope ecological restoration structure and method, mainly aim at the landslide body side slope ecological restoration, carry on the foundation bottoming to the side slope bottom with the rock layer, there are drains in the rock layer still, adopt the soil engineering lattice soil to cultivate the short shrub to carry on the firm slope above the rock layer in addition, because the growth cycle of the shrub plant is long, the closing is slow, but its stout main root system can fix the slope surface shallow soil effectively; the growth of the shrub plants in the middle period enters a vigorous period, and the plant slope protection effect is obvious; in addition, the shrub plant has the advantages of developed root system, high pulling strength, strong disaster resistance and the like, and is more favorable for exerting the soil stabilization and slope protection effects. In a word, the restoration method has the advantages of strong overall stability, more lasting restoration time, strong adaptability to the special environment of the landslide body in the alpine region and good slope restoration effect, and the slope protection mode is popularized in the Qilian mountain beach open pit coal mine.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and any simple modifications or equivalent substitutions of the technical solutions that can be made obvious by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (6)
1. The utility model provides a landslide mass side slope ecological remediation structure which characterized in that includes:
a plurality of water reservoirs (1) are arranged and dug on the slope surface of the landslide body, the inner side wall of each water reservoir (1) is a rock-soil layer, the outer side wall of each water reservoir (1) is reinforced through concrete, and a cover (10) is arranged at the top of each water reservoir (1);
the bottom rock layer (2) consists of large rocks paved on the flat ground at the bottom of the slope of the landslide body side slope;
the geotextile (6) is laid on the surface of the bottom rock layer (2);
the drainage pipes (3) are arranged on the geotextile (6), the drainage pipes (3) are horizontally and uniformly arranged along the direction of a vertical landslide body, each water outlet of the impounding reservoir (1) is provided with a water suction pump (4), both ends of each water suction pump (4) are connected with a water diversion pipe (5), the water diversion pipes (5) positioned outside the impounding reservoir (1) are arranged along the length direction of the landslide body, the other ends of the water diversion pipes (5) are connected with the corresponding drainage pipes (3), the other ends of the drainage pipes (3) extend out of the geotextile (6), the water diversion pipes (5) on the outer side comprise upper water diversion pipes and lower water diversion pipes, the lower water diversion pipes are connected with the corresponding drainage pipes (3), the upper water diversion pipes and the lower water diversion pipes are connected through tee joints, the other end openings of the tee joints are connected with irrigation pipes (12), a water spraying valve (13) facing downwards is arranged at the other end of the irrigation pipe (12), an electromagnetic valve (14) is further arranged on the lower water diversion pipe, the number of the drain pipes (3) is not less than twice that of the water diversion pipes (5), one end of each drain pipe (3) which is not connected with the water diversion pipes (5) is in contact with the bottom of a landslide, and the other end of each drain pipe also extends out of the geotextile (6);
the steel bar framework (7) comprises steel bar grids which are horizontally arranged and form grids, and nodes of the steel bar grids are also connected with vertically arranged steel bars;
the upper rock layer (8) is formed by small rocks paved above the drain pipe (3), and the steel reinforcement framework (7) penetrates through the upper rock layer (8);
and the geocell foreign soil cultivation layer (9) is arranged on the upper rock layer (8).
2. The landslide slope ecological restoration structure according to claim 1, wherein the water pump (4) is a photovoltaic water pump, a water level gauge (11) and a controller are further arranged inside the reservoir (1) respectively, and the controller is connected with the water level gauge (11), the water pump (4), the water spray valve (13) and the electromagnetic valve (14) respectively.
3. The landslide ecological restoration structure of a slope of claim 1 wherein gaps between large rock blocks of said bottom rock layer (2) are filled with small rock blocks.
4. The landslide body slope ecological restoration structure according to claim 1, wherein the geocell foreign soil cultivation layer (9) is composed of a plurality of layers of geocells, steps are sequentially formed among the plurality of layers of geocells, and vegetation is planted in each layer of geocell.
5. The landslide body slope ecological restoration structure according to claim 4, wherein shrubs and perennial herbs are planted in combination when vegetation is planted in the geocell, wherein the shrubs are any one or more of sea buckthorn, caragana, sabina vulgaris, spiraea ulmaria, elaeagnus pungens, clove and fructus forsythiae, and the perennial herbs are any one or more of petunia, pink, cherry-beauty and wheatgrass.
6. The ecological restoration method for the landslide slope is characterized by comprising the following steps:
step 1: searching for spring holes or water outlet points on the slope surface of the landslide body, digging a plurality of water reservoirs (1) below the spring holes or the water outlet points, a water level gauge (11) and a controller are arranged in each reservoir (1), a water suction pump (4) is arranged at the water outlet of the reservoir (1), and both ends of each water suction pump (4) are connected with a water conduit (5), the water conduit (5) positioned outside the impounding reservoir (1) is divided into an upper water conduit and a lower water conduit, a tee joint is arranged between the upper water conduit and the lower water conduit, the other end of the tee joint is connected with an irrigation pipe (12), and a downward water spray valve (13) is arranged at the other end of the irrigation pipe (12), an electromagnetic valve (14) is also arranged on the lower water conduit, and after the installation is finished, the controller is respectively connected with the water level gauge (11), the water suction pump (4), the water spray valve (13) and the electromagnetic valve (14);
step 2: removing sludge and garbage at the bottom of the side slope of the landslide body to keep the slope bottom flat;
and step 3: paving large rocks at the cleaned slope bottom, and filling small rocks into gaps among the large rocks to form a bottom rock layer (2);
and 4, step 4: laying geotextile (6) on the bottom rock layer (2);
and 5: laying a plurality of drain pipes (3) on the geotextile (6), wherein the drain pipes (3) are horizontally and uniformly arranged along the direction vertical to a landslide body, one ends of the drain pipes (3) are connected with the lower water diversion pipes (5), the other ends of the drain pipes (3) extend out of the geotextile (6), the number of the drain pipes (3) is not less than twice of the number of the water diversion pipes (5), one ends of the drain pipes (3) which are not connected with the lower water diversion pipes (5) are in contact with the bottom of the landslide, and the other ends of the drain pipes also extend out of the geotextile (6);
step 6: laying a steel bar framework (7) on the geotextile (6), wherein the steel bar framework (7) comprises steel bar grids which are horizontally arranged and form grids, and nodes of the steel bar grids are also connected with vertically arranged steel bars;
and 7: paving small rocks on the drain pipe (3) to form an upper rock layer (8), wherein the steel reinforcement framework (7) penetrates through the upper rock layer (8);
and 8: set up geotechnological check room soil removal cultivation layer (9) on upper portion rock layer (8), geotechnological check room soil removal cultivation layer (9) comprises multilayer geotechnological check room, and multilayer geotechnological check room forms the step in proper order, all plants the vegetation in the geotechnological check room on every layer, combines bush and perennial grassy plant to plant when planting the vegetation in geotechnological check room, and wherein the bush is arbitrary one or several kinds in seabuckthorn, caragana, sabina vulgaris, spiraea crispa, elaeagnus pungens, clove, the fructus forsythiae, and perennial grassy plant is arbitrary one or several kinds in low ox, pink, meinun cherry, the wheatgrass.
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| CN115354715A (en) * | 2022-07-02 | 2022-11-18 | 中国建筑一局(集团)有限公司 | Diversion engineering system for ecological restoration and construction process |
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