CN116267437B - Novel ecological slope protection reconstruction method - Google Patents

Novel ecological slope protection reconstruction method Download PDF

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Publication number
CN116267437B
CN116267437B CN202310332595.XA CN202310332595A CN116267437B CN 116267437 B CN116267437 B CN 116267437B CN 202310332595 A CN202310332595 A CN 202310332595A CN 116267437 B CN116267437 B CN 116267437B
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slope
modified
dike
soil
wood square
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CN116267437A (en
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周绍维
郭少斌
章春楷
胡昌领
薛玫庭
聂清念
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Guangdong No 3 Water Conservancy and Hydro Electric Engineering Board Co Ltd
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Guangdong No 3 Water Conservancy and Hydro Electric Engineering Board Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/20Securing of slopes or inclines
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G20/00Cultivation of turf, lawn or the like; Apparatus or methods therefor
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G22/00Cultivation of specific crops or plants not otherwise provided for
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/23Dune restoration or creation; Cliff stabilisation

Abstract

The invention relates to the technical field of ecological slope protection, in particular to a novel ecological slope protection reconstruction method, which comprises the steps of determining a viscosity value of modified cultivated soil according to slope of a slope dike, manufacturing wood square for bearing the modified cultivated soil, installing the wood square, determining the compactness of soil backfill according to the quality of the modified cultivated soil and the volume of the wood square, laying the modified cultivated soil meeting the standard, comparing the slope dike slope with a preset slope, determining the spacing distance of vines and the number of required vines, fixing the laid turf by using vines and nails, and finishing slope protection reconstruction.

Description

Novel ecological slope protection reconstruction method
Technical Field
The invention relates to the technical field of ecological slope protection, in particular to a novel ecological slope protection reconstruction method.
Background
At present, two measures are generally adopted for reconstruction of hard slope protection of established hydraulic engineering: firstly, the ecological reconstruction is carried out after the hard slope protection is broken, such as an ecological concrete technology and the like, and the large-area demolishing reconstruction period is longer and the manufacturing cost is higher; the ecological restoration is directly carried out on the basis of the hard slope protection, and the basic thought is to lay matrixes and plant plants, such as a new groove excavation and roller vegetation technology, a slope drilling and backfilling technology, a geotechnical material soil fixing planting technology and the like, and vegetation coverage is limited after the technology is modified, and the manufacturing cost is high.
Chinese patent publication No.: CN113957911a discloses an ecological restoration vegetation concrete slope protection structure suitable for hard rock steep slope and a construction method thereof, comprising a ground fixing plate arranged on the ground of the slope top, a slope fixing plate arranged on the slope and a moving mechanism arranged on the slope fixing plate, wherein a rectangular block placing frame is arranged on the moving mechanism, a plurality of ground fixing plates are arranged in parallel, the slope fixing plate comprises crisscross transverse plates and vertical plates, and the transverse plates and the vertical plates are connected through transverse and vertical connecting blocks; from this, it can be seen that the problem of the air jet non-uniformity is solved to the said patent, improves the efficiency of construction, but has the following problems: the scheme has higher material cost, does not consider the problems of viscosity value and compactness of the planting soil, and is easy to cause the problems of planting soil loss, vegetation coverage reduction and the like in long-term application.
Disclosure of Invention
Therefore, the invention provides a novel ecological slope protection reconstruction method which is used for solving the problem that in the prior art, slope protection planting soil is easy to run off, vegetation growth soil is uncomfortable, and vegetation coverage is affected.
In order to achieve the above object, in one aspect, the present invention provides a novel ecological slope protection reconstruction method, including:
step S1, obtaining data of a slope dike to be modified, wherein the data comprise three views of the slope dike to determine the length, the width and the slope of the slope surface;
s2, determining a viscosity value of the modified planting soil according to the slope of the slope dike, and preparing the modified planting soil;
s3, determining the height of the wood square according to the slope of the slope dike, manufacturing the wood square for bearing the modified cultivated soil and installing the wood square;
s4, determining whether the compactness of the backfilled soil meets the laying standard or not according to the quality of the modified cultivated and planted soil and the volume of the wood square, and laying the modified cultivated and planted soil meeting the standard;
s5, determining the spacing distance of the vines and the number of the vines required according to the slope of the sloping dike and the slope length, and fixing the paved turf by using the vines and nails;
the slope surface of the slope dike is a concrete slope surface, the slope of the slope dike is calculated according to the ratio of the vertical height to the horizontal width of the slope surface, the slope of the slope dike is marked as theta, and the slope dike is an acute angle formed by the slope dike and a reference surface.
Further, in the step S2, the viscosity value of the modified cultivated soil is determined by comparing the slope of the dyke with a preset slope standard, the modified cultivated soil is prepared according to the determined viscosity value, a first preset slope standard phi 1 and a second preset slope standard phi 2 are preset, wherein phi 1 is more than 0 and less than phi 2 is less than 90 degrees,
if theta is less than or equal to phi 1, judging that the slope of the slope dike is gentle, and setting the viscosity of the modified cultivated soil as a first viscosity value;
if phi 1 is less than theta and less than or equal to phi 2, judging that the slope of the slope dike is in a preset range, and setting the viscosity of the modified cultivated soil to be a second viscosity value;
if theta is larger than phi 2, determining that the slope of the slope dike is steep, and setting the viscosity of the modified cultivated soil to be a third viscosity value;
wherein, the first viscosity value is less than the second viscosity value and less than the third viscosity value.
Further, in the step S3, the steps of manufacturing and installing the wood square for carrying the modified cultivated soil include:
step S31, calculating the overall required size according to the plan view and the side view of the slope protection to be modified;
step S32, determining the length and the width of a single wood square according to production construction conditions, determining the height of the wood square according to the slope of the slope dike and the area of the wood square, and manufacturing the single wood square;
step S33, determining a viscosity characterization value E according to the height h of the selected single wood square and the slope of the slope dike, and judging whether the viscosity of the modified cultivated soil needs to be adjusted or not;
step S34, respectively installing a plank at four corners of the bottom surface of the single plank square, and fixing the plank with the slope surface by installing expansion screws;
step S35, connecting a plurality of single wood squares in the step S32 into a group, and installing the single wood squares by taking the group of the wood squares as a unit so as to adapt to different installation requirements and improve the installation efficiency;
and S36, drilling the slope surface, and fixing the wood square on the slope surface by using expansion screws.
Further, in the step S32, the length and width of the single wood square are determined according to the production and construction conditions and are smaller than the wood square area threshold value; according to the slope of the dykeThe area of the individual wood squares determines the individual wood square height h range,
wherein h0 is more than or equal to h and less than or equal to h1, h is the height of a single wood square, and h0 is the preset minimum slope protection height; h1 is the highest threshold value of the height of the wood square grid, the highest threshold value h1 is determined by the slope of the slope dike, and the area threshold value is set to be 0.5 square meter.
Further, in the step S32, according to the bank inclinationComparing the result with a third preset inclination standard phi 3 and comparing the area of a single wood square lattice with a preset area standard, and determining the calculation mode of the highest threshold value:
if the slope of the dyke is greater than the third preset slope standard phi 3 and the area of the single wood square lattice is greater than the preset area standard condition, determining the highest threshold h1 of the height of the wood square lattice by the formula (1):
+1(1)
if the slope of the slope dike is greater than the third preset slope standard phi 3 and the area of the single wood square lattice is smaller than the preset area standard condition, determining the highest height threshold h1 of the wood square lattice by the formula (2):
+1(2)
if the slope dike pitch is not greater than the third preset pitch standard Φ3, the highest height threshold h1 of the wood squares is determined by the formula (3):
+1(3)
wherein, phi 0 is more than phi 1 and less than phi 3 is more than phi 2,and (3) the slope dike inclination in the formula (3) is dimensionless and is a standard value of slope protection thickness when the slope dike inclination is a third preset inclination standard phi 3.
Further, in the step S33, a viscosity characterization value E is determined according to the selected single wood square height h and the slope of the dyke, and it is determined whether the viscosity of the modified cultivated soil needs to be adjusted,
E=(h1/h) 2 +(θ/θ0) 2
if E is more than or equal to E0, judging that the viscosity of the modified cultivated soil is not required to be adjusted;
if E is less than E0, judging that the viscosity of the modified cultivated soil needs to be adjusted, determining the adjustment quantity of the viscosity of the modified cultivated soil according to the ratio g of the viscosity characterization value E to the preset viscosity characterization standard value E0, adjusting the viscosity value K of the modified cultivated soil,
wherein, theta 0 is the standard slope dike inclination of the region where the dike is positioned,for the viscosity value determined in step S2, g=e0/E.
Further, in the step S4, the laying step of the modified cultivated soil includes:
s41, preparing the modified planting soil according to the viscosity value of the modified planting soil determined in the step S33;
step S42, filling the modified cultivated soil with the mass of m0 into the V1 volume of a single wood square lattice, and judging whether the modified cultivated soil meets the laying standard according to the comparison of the measured compactness P and a preset compactness range;
and S43, uniformly laying the modified cultivated soil with unit mass which meets the laying standard in the wood squares, wherein a space of 1cm is reserved in the thickness direction of the wood squares for planting turf.
Further, in the step S42, the compactness P of the modified cultivated soil is determined by the formula (4):
(4)
wherein ,,/>for the area of the single wood square, +.>The filling height of the wood square grid after reserving a space of 1cm is removed;
if the compactness P is within the preset compactness range, judging that the compactness meets the standard;
if the compactness P is smaller than the lower limit of the preset compactness range, judging that the measured compactness is low and does not accord with the standard;
the quality m1 of the modified cultivated soil in the single wood square is increased, the V1 volume of the single wood square is filled, and the measurement is performed again;
if the measured compactness P is larger than the upper limit of the range of the preset compactness, judging that the measured compactness P is high and does not accord with the standard;
reducing the quality m2 of the modified cultivated soil in the single wood square, filling the V1 volume of the single wood square, and measuring again;
the modified cultivated soil mass m1 within the increased single wood square is determined by formula (5):
m1=λm0(5)
the modified soil mass m2 within the reduced single wood square is determined by formula (6):
m2=μm0(6)
wherein lambda and mu are regulating coefficients, lambda is more than 0 and less than 0.1, mu is more than 0 and less than 0.2.
Further, in the step S5, the planting coverage interval of the vines is determined according to the slope of the dyke and the third preset slope standard phi 3,
if the slope degree of the slope dike is larger than or equal to a third preset slope standard phi 3, the horizontal and vertical spacing distance d of each vine is determined by a formula (6):
(6)
if the slope of the dyke is smaller than a third preset slope standard phi 3, the spacing distance d of the vines is determined by a formula (7):
(7)
wherein ,for the ramp length.
Compared with the prior art, the method has the beneficial effects that the viscosity value of the modified cultivated soil is determined according to the slope of the slope dike by utilizing the related data of the slope dike to be modified, the wood square for bearing the modified cultivated soil is manufactured, the wood square is installed, the compactness of soil backfill is determined according to the quality of the modified cultivated soil and the volume of the wood square, the standard modified cultivated soil is laid, the spacing distance of the vines and the number of the vines are determined according to the slope of the slope dike and the preset slope, the laid turf is fixed by using the vines and nails, slope reconstruction is completed, the slope dike to be modified is not single hard or gray in appearance, and the engineering green and graceful appearance is shown after reconstruction.
Furthermore, the size of the wood square lattice for bearing the modified cultivated soil can be flexibly adjusted according to the slope of the slope dike and the coverage area, so that the utilization rate of the cultivated soil can be improved while the slope dike can be covered by vegetation on the whole surface, and soil loss caused by excessive laying of the cultivated soil is avoided, and the whole effect is influenced.
Furthermore, the invention can timely adjust according to whether the compactness of the modified cultivated soil laid in the fixed volume of the wood square meets the standard of plant growth, thereby meeting the initial growth requirement of vegetation, improving the rooting speed of the vegetation in the modified cultivated soil and improving the survival rate of the vegetation.
Furthermore, the invention uses the vines to fix the turf, thereby not only ensuring the stability of the turf, but also increasing the vegetation coverage rate of the sloping dyke and achieving the effects of environmental protection and high efficiency.
Drawings
FIG. 1 is a flow chart of a novel ecological slope protection reconstruction method of the invention;
fig. 2 is a flow chart of the manufacturing and installation of the wood squares for carrying the modified cultivated soil according to the present invention.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1, a flow chart of a new ecological slope protection reconstruction method provided by the invention is characterized by comprising the following steps:
step S1, obtaining data of a slope dike to be modified, wherein the data comprise three views of the slope dike to determine the length, the width and the slope of the slope surface;
s2, determining a viscosity value of the modified planting soil according to the slope of the slope dike, and preparing the modified planting soil;
s3, determining the height of the wood square according to the slope of the slope dike, manufacturing the wood square for bearing the modified cultivated soil and installing the wood square;
s4, determining whether the compactness of the backfilled soil meets the laying standard or not according to the quality of the modified cultivated and planted soil and the volume of the wood square, and laying the modified cultivated and planted soil meeting the standard;
s5, determining the spacing distance of the vines and the number of the vines required according to the slope of the sloping dike and the slope length, and fixing the paved turf by using the vines and nails;
the slope surface of the slope dike is a concrete slope surface, the slope of the slope dike is calculated according to the ratio of the vertical height to the horizontal width of the slope surface, and the turf is determined according to the characteristics of a slope protection area.
The invention utilizes the obtained relevant data of the slope dike to be modified, determines the viscosity value of the modified planting soil according to the slope of the slope dike, determines the height of a wood square lattice used for bearing the modified planting soil according to factors such as the slope of the slope dike, makes proper wood square lattice for installation, determines whether the compactness of backfilled soil materials accords with the laying standard according to the quality of the modified planting soil and the volume of the wood square lattice, lays the modified planting soil which accords with the standard, compares the slope dike with the preset slope, and determines the slope length, the spacing distance of vines and the number of the vines required, and fixes the laid turf with proper amount of vines and nails to finish slope protection modification, so that the modified slope dike is not single hard and gray in appearance any more, and shows green and graceful appearance of engineering after modification. According to the invention, the modified tillage planting soil mainly adopts the soil materials excavated by the foundation pit around the slope dike, so that the method is environment-friendly, low in manufacturing cost and low in manufacturing cost, planting soil with different viscosities is prepared according to different slopes of the slope dike, the stability of the planting soil used for the slope is ensured, falling is avoided, and the planting effect of vegetation on the slope dike is ensured.
Specifically, in the step S2, the viscosity value of the modified cultivated soil is determined by comparing the slope of the dyke with a preset slope standard, the modified cultivated soil is prepared according to the determined viscosity value, a first preset slope standard phi 1 and a second preset slope standard phi 2 are preset, wherein 0 < phi 1 < phi 2 < 90 degrees, the slope of the dyke is marked as theta,
if theta is less than or equal to phi 1, judging that the slope of the slope dike is gentle, and setting the viscosity of the modified cultivated soil as a first viscosity value;
if phi 1 is less than theta and less than or equal to phi 2, judging that the slope of the slope dike is in a preset range, and setting the viscosity of the modified cultivated soil to be a second viscosity value;
if theta is larger than phi 2, determining that the slope of the slope dike is steep, and setting the viscosity of the modified cultivated soil to be a third viscosity value;
the slope angle theta of the slope dike is an acute angle formed by the slope dike and the reference surface, and the first preset slope standard phi 1 and the second preset slope standard phi 2 are set according to the change condition of the stability of the same cultivated soil under different slopes, which is measured by limited experiments; the first viscosity value is less than the second viscosity value and less than the third viscosity value, and the values are set according to the stability effects of the cultivated soil with different viscosities on different slopes, which are measured through limited experiments.
Specifically, in the step S3, the steps of manufacturing and installing the wood square lattice for carrying the modified cultivated soil include, as shown in fig. 2:
step S31, calculating the overall required size according to the plan view and the side view of the slope protection to be modified;
step S32, determining the length and the width of a single wood square according to production construction conditions, determining the height of the wood square according to the slope of the slope dike and the area of the wood square, and manufacturing the single wood square;
step S33, determining a viscosity characterization value E according to the height h of the selected single wood square and the slope of the slope dike, and judging whether the viscosity of the modified cultivated soil needs to be adjusted or not;
step S34, respectively installing a plank at four corners of the bottom surface of the single plank square, and fixing the plank with the slope surface by installing expansion screws;
step S35, connecting a plurality of single wood squares in the step S32 into a group, and installing the single wood squares by taking the group of the wood squares as a unit so as to adapt to different installation requirements and improve the installation efficiency;
and S36, drilling the slope surface, and fixing the wood square on the slope surface by using expansion screws.
Specifically, in the step S32, the length and width of the single wood square are determined according to the production and construction conditions and are smaller than the wood square area threshold value; according to the slope of the dykeThe area of the individual wood squares determines the individual wood square height h range,
wherein h0 is more than or equal to h and less than or equal to h1, h is the height of a single wood square, and h0 is the preset minimum slope protection height; h1 is the highest threshold value of the height of the wood square grid, the highest threshold value h1 is determined by the slope of the slope dike, and the area threshold value is set to be 0.5 square meter.
Specifically, in the step S32, the slope of the embankment is determinedComparing the result with a third preset inclination standard phi 3 and comparing the area of a single wood square lattice with a preset area standard, and determining the calculation mode of the highest threshold value:
if the slope of the dyke is greater than the third preset slope standard phi 3 and the area of the single wood square lattice is greater than the preset area standard condition, determining the highest threshold h1 of the height of the wood square lattice by the formula (1):
+1(1)
if the slope of the slope dike is greater than the third preset slope standard phi 3 and the area of the single wood square lattice is smaller than the preset area standard condition, determining the highest height threshold h1 of the wood square lattice by the formula (2):
+1(2)
if the slope dike pitch is not greater than the third preset pitch standard Φ3, the highest height threshold h1 of the wood squares is determined by the formula (3):
+1(3)
wherein, phi 0-phi 1-phi 3-phi 2, the third preset slope standard phi 3 is set according to the change condition of the stability of the same cultivated and planted soil under different slopes measured by limited experiments,and (3) the slope dike inclination in the formula (3) is dimensionless and is a standard value of slope protection thickness when the slope dike inclination is a third preset inclination standard phi 3.
The size of the wood square lattice for bearing the modified cultivated soil can be flexibly adjusted according to the slope of the sloping dike and the coverage area, so that the utilization rate of the cultivated soil can be improved while the sloping dike can be covered by vegetation on the whole surface, and soil loss caused by excessive laying of the cultivated soil is avoided, and the whole effect is influenced.
Specifically, in the step S33, a viscosity characterization value E is determined according to the selected single wood square height h and the slope of the dyke, and it is determined whether the viscosity of the modified cultivated soil needs to be adjusted,
E=(h1/h) 2 +(θ/θ0) 2
if E is more than or equal to E0, judging that the viscosity of the modified cultivated soil is not required to be adjusted;
if E is less than E0, judging that the viscosity of the modified cultivated soil needs to be adjusted, determining the adjustment quantity of the viscosity of the modified cultivated soil according to the ratio g of the viscosity characterization value E to the preset viscosity characterization standard value E0, adjusting the viscosity value K of the modified cultivated soil,
wherein, theta 0 is the standard slope dike inclination of the region where the dike is positioned,for the viscosity value determined in step S2, g=e0/E.
According to the invention, the viscosity characterization value E is determined according to the height h of the selected single wood square and the slope of the slope dike, and the larger the value is, the better the stability of the modified cultivated soil under the condition is, and the longer the long-term survival of vegetation slope protection is facilitated.
Specifically, in the step S4, the laying step of the modified soil for tillage includes:
s41, preparing the modified planting soil according to the viscosity value of the modified planting soil determined in the step S33;
step S42, filling the modified cultivated soil with the mass of m0 into the V1 volume of a single wood square, comparing the measured compactness P with a preset compactness range, and judging whether the modified cultivated soil meets the laying standard;
step S43, uniformly laying the modified cultivated soil with unit mass which meets the laying standard in the wood squares, wherein a space of 1cm is reserved in the thickness direction of the wood squares and used for planting turf;
the preset compactness range is determined according to the environmental conditions and plant growth conditions of different regions.
Specifically, in the step S42, the compactness P of the modified soil for tillage is determined by the formula (4):
(4)
wherein ,,/>for the area of the single wood square, +.>The filling height of the wood square grid after reserving a space of 1cm is removed;
if the compactness P is within the preset compactness range, judging that the compactness meets the standard;
if the compactness P is smaller than the lower limit of the preset compactness range, judging that the measured compactness is low and does not accord with the standard;
the quality m1 of the modified cultivated soil in the single wood square is increased, the V1 volume of the single wood square is filled, and the measurement is performed again;
if the measured compactness P is larger than the upper limit of the range of the preset compactness, judging that the measured compactness P is high and does not accord with the standard;
reducing the quality m2 of the modified cultivated soil in the single wood square, filling the V1 volume of the single wood square, and measuring again;
the modified cultivated soil mass m1 within the increased single wood square is determined by formula (5):
m1=λm0(5)
the modified soil mass m2 within the reduced single wood square is determined by formula (6):
m2=μm0(6)
wherein lambda and mu are regulating coefficients, lambda is more than 0 and less than 0.1, mu is more than 0 and less than 0.2, and the lambda value and mu value can be properly larger than lambda when the quality is regulated for a single time in the implementation process according to specific precision requirements, so that the use amount of soil materials is more saved.
According to the method, whether the compactness of the modified cultivated soil laid in the fixed volume of the wood square meets the standard of plant growth is measured, and the method can be adjusted in time, so that the initial growth requirement of vegetation can be met, the rooting speed of the vegetation on the modified cultivated soil is improved, and the survival rate of the vegetation is improved.
Specifically, in the step S5, the planting coverage interval of the vines is determined according to the slope of the dyke compared with a third preset slope standard phi 3,
if the slope degree of the slope dike is larger than or equal to a third preset slope standard phi 3, the horizontal and vertical spacing distance d of each vine is determined by a formula (6):
(6)
if the slope of the dyke is smaller than a third preset slope standard phi 3, the spacing distance d of the vines is determined by a formula (7):
(7)
wherein ,for the ramp length.
The invention fixes the turf by using the vines, thereby not only ensuring the stability of the turf, but also increasing the vegetation coverage rate of the sloping dyke and achieving the effects of environmental protection and high efficiency.
Example 1:
the embodiment is applied to reconstruction of a concrete guardrail slope protection of a traffic bridge at the top of a navigation wall of a two-line ship lock of a North river channel, and the concrete implementation steps are as follows:
acquiring the data of the concrete guardrail to be modified: the guardrail is 26m long and 0.7m high, and the guardrail surface mainly divides into three parts: the inclined section at the top is 40cm in height and forms an included angle of 82 degrees with the horizontal, the inclined section at the middle is 20cm in height and forms an included angle of 53 degrees with the horizontal, and the vertical section at the bottom is 10cm in height and forms an included angle of 90 degrees with the horizontal.
Biological rubber powder developed and produced by Jiangmen Jieyuan biotechnology limited company is added into a line lock foundation pit excavation soil material, according to experiments, the viscosity value of the cultivated soil prepared by the excavation soil material and the rubber powder added in the proportion of 1000:1 is determined to be in accordance with the viscosity value standard of the slope, and the modified cultivated soil is prepared according to the proportion.
Respectively manufacturing a top inclined section wood square lattice and a middle inclined section wood square lattice to meet different inclination requirements, wherein the specification and the size of a single top inclined section wood square lattice are 46cm multiplied by 38cm multiplied by 10cm (length multiplied by width multiplied by height); the specification and the size of a single wood square lattice with the middle inclined section are 46cm multiplied by 24cm multiplied by 10cm (length multiplied by width multiplied by height); the four corners of the bottom surface of each single wood square are provided with a wood board for installing expansion screws, the wood board is fixed on a slope, the size of each single template is 10cm multiplied by 5cm, the construction efficiency and simplicity are considered, 4 wood squares are connected into 1 group, the wood square is convenient for workers to install, holes are drilled on the slope, and the wood square is fixed on the slope by the expansion screws.
And (3) determining backfilling quality of the modified cultivated soil in the two wood squares respectively, and laying in each square after ensuring that the compactness of the modified cultivated soil meets the vegetation growth standard.
Comparing the slope with a preset slope and determining the slope length according to the slope dike slope, wherein the spacing distance of two slope vines is 18cm and 20cm respectively, and the ecological slope protection reconstruction is completed by selecting the minimum spacing distance as the spacing distance for planting the whole vines and fixing the laid turf by using vine climbing tigers and wood or bamboo nails for the whole vines.
After transformation, the revetment is observed for several months, vegetation on the revetment grows vigorously, the soil cultivation stability is strong, and no loss and falling phenomenon occurs.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the invention; various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The novel ecological slope protection reconstruction method is characterized by comprising the following steps of:
step S1, obtaining data of a slope dike to be modified, wherein the data comprise three views of the slope dike to determine the length, the width and the slope of the slope surface;
s2, determining a viscosity value of the modified planting soil according to the slope of the slope dike, and preparing the modified planting soil;
s3, determining the height of the wood square according to the slope of the slope dike, manufacturing the wood square for bearing the modified cultivated soil and installing the wood square;
s4, determining whether the compactness of the backfilled soil meets the laying standard or not according to the quality of the modified cultivated and planted soil and the volume of the wood square, and laying the modified cultivated and planted soil meeting the standard;
s5, determining the spacing distance of the vines and the number of the vines required according to the slope of the sloping dike and the slope length, and fixing the paved turf by using the vines and nails;
the slope surface of the dyke is a concrete slope surface, the slope of the dyke is calculated according to the ratio of the vertical height to the horizontal width of the slope surface, the slope of the dyke is marked as theta, and the slope of the dyke is an acute angle formed by the dyke and a reference surface;
in the step S3, the manufacturing and installing steps of the wood square lattice for carrying the modified cultivated soil include:
step S31, calculating the overall required size according to the plan view and the side view of the slope protection to be modified;
step S32, determining the length and the width of a single wood square according to production construction conditions, determining the height of the wood square according to the slope of the slope dike and the area of the wood square, and manufacturing the single wood square;
step S33, determining a viscosity characterization value E according to the height h of the selected single wood square and the slope of the slope dike, and judging whether the viscosity of the modified cultivated soil needs to be adjusted or not;
step S34, respectively installing a plank at four corners of the bottom surface of the single plank square, and fixing the plank with the slope surface by installing expansion screws;
step S35, connecting a plurality of single wood squares in the step S32 into a group, and installing the single wood squares by taking the group of the wood squares as a unit so as to adapt to different installation requirements and improve the installation efficiency;
s36, drilling holes on the slope, and fixing the wood square on the slope by using expansion screws;
in the step S32, the length and width of the single wood square are determined according to the production and construction conditions and are smaller than the area threshold of the wood square; determining the height h range of the single wood square according to the slope of the slope dike and the area of the single wood square,
wherein h0 is more than or equal to h and less than or equal to h1, h is the height of a single wood square, and h0 is the preset minimum slope protection height; h1 is the highest threshold value of the height of the wood square grid, the highest threshold value h1 is determined by the slope of the slope dike, and the area threshold value is set to be 0.5 square meter;
in the step S32, when the bank pitch is not greater than the third preset pitch standard Φ3, the highest height threshold h1 of the wood square is determined by the formula (3):
+1(3)
wherein, phi 0 is more than phi 1 and less than phi 3 is more than phi 2,the slope dike inclination in the formula (3) is dimensionless, which is a standard value of slope protection thickness when the slope dike inclination is a third preset inclination standard phi 3;
in the step S33, a viscosity characterization value E is determined according to the height h of the selected single wood square and the slope of the slope dike, and whether the viscosity of the modified cultivated soil needs to be adjusted is judged,
E=(h1/h) 2 +(θ/θ0) 2
if E is more than or equal to E0, judging that the viscosity of the modified cultivated soil is not required to be adjusted;
if E is less than E0, judging that the viscosity of the modified cultivated soil needs to be adjusted, determining the adjustment quantity of the viscosity of the modified cultivated soil according to the ratio g of the viscosity characterization value E to the preset viscosity characterization standard value E0, adjusting the viscosity value K of the modified cultivated soil,
wherein, theta 0 is the standard slope dike inclination of the region where the dike is positioned,for the viscosity value determined in step S2, g=e0/E.
2. The method according to claim 1, wherein in the step S2, the viscosity value of the modified soil is determined by comparing the slope of the dike with a predetermined slope standard, and the modified soil is prepared according to the determined viscosity value, a first predetermined slope standard Φ1 and a second predetermined slope standard Φ2 are preset, wherein 0 < Φ1 < Φ2 < 90 °,
if theta is less than or equal to phi 1, judging that the slope of the slope dike is gentle, and setting the viscosity of the modified cultivated soil as a first viscosity value;
if phi 1 is less than theta and less than or equal to phi 2, judging that the slope of the slope dike is in a preset range, and setting the viscosity of the modified cultivated soil to be a second viscosity value;
if theta is larger than phi 2, determining that the slope of the slope dike is steep, and setting the viscosity of the modified cultivated soil to be a third viscosity value;
wherein, the first viscosity value is less than the second viscosity value and less than the third viscosity value.
3. The method for modifying an ecological slope according to claim 2, wherein in the step S4, the step of laying the modified cultivated soil comprises:
s41, preparing the modified planting soil according to the viscosity value of the modified planting soil determined in the step S33;
step S42, filling the modified cultivated soil with the mass of m0 into the V1 volume of a single wood square lattice, and judging whether the modified cultivated soil meets the laying standard according to the comparison of the measured compactness P and a preset compactness range;
and S43, uniformly laying the modified cultivated soil with unit mass which meets the laying standard in the wood squares, wherein a space of 1cm is reserved in the thickness direction of the wood squares for planting turf.
4. The method for modifying an ecological slope according to claim 3, wherein in the step S42, the compactness P of the modified cultivated soil is determined by the formula (4):
(4)
wherein ,,/>for the area of the single wood square, +.>The filling height of the wood square grid after reserving a space of 1cm is removed;
if the compactness P is within the preset compactness range, judging that the compactness meets the standard;
if the compactness P is smaller than the lower limit of the preset compactness range, judging that the measured compactness is low and does not accord with the standard;
the quality m1 of the modified cultivated soil in the single wood square is increased, the V1 volume of the single wood square is filled, and the measurement is performed again;
if the measured compactness P is larger than the upper limit of the range of the preset compactness, judging that the measured compactness P is high and does not accord with the standard;
reducing the quality m2 of the modified cultivated soil in the single wood square, filling the V1 volume of the single wood square, and measuring again;
the modified cultivated soil mass m1 within the increased single wood square is determined by formula (5):
m1=λm0(5)
the modified soil mass m2 within the reduced single wood square is determined by formula (6):
m2=μm0(6)
wherein lambda and mu are regulating coefficients, lambda is more than 0 and less than 0.1, mu is more than 0 and less than 0.2.
5. The method for reconstructing a new ecological slope according to claim 4, wherein in said step S5, the planting coverage interval of the vines is determined by comparing the slope of said dyke with a third predetermined slope standard Φ3,
if the slope degree of the slope dike is larger than or equal to a third preset slope standard phi 3, the horizontal and vertical spacing distance d of each vine is determined by a formula (6):
(6)
if the slope of the dyke is smaller than a third preset slope standard phi 3, the spacing distance d of the vines is determined by a formula (7):
(7)
wherein ,for the ramp length.
6. The method for modifying ecological slope protection according to claim 5, wherein the modified cultivated soil is prepared by adjusting the viscosity value of soil materials by collagen biological materials, and the vines are selected from high-toughness and easy-to-survive varieties including kudzu, bay vine and tiger.
CN202310332595.XA 2023-03-29 2023-03-29 Novel ecological slope protection reconstruction method Active CN116267437B (en)

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KR20040078753A (en) * 2003-03-05 2004-09-13 여유현 The Bio Vegetation Ground Reinforcement Method on the fill layer Slope using the tension material and the vine
CN110374054A (en) * 2019-07-23 2019-10-25 重庆大学 A kind of ecological slope protection consolidates soil structure and method
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002188150A (en) * 2000-12-19 2002-07-05 Onoda Chemico Co Ltd Spray stabilizer for greening slope and its execution method
KR20040078753A (en) * 2003-03-05 2004-09-13 여유현 The Bio Vegetation Ground Reinforcement Method on the fill layer Slope using the tension material and the vine
CN110374054A (en) * 2019-07-23 2019-10-25 重庆大学 A kind of ecological slope protection consolidates soil structure and method
CN113957911A (en) * 2021-11-17 2022-01-21 国网新源控股有限公司 Ecological restoration vegetation concrete slope protection structure suitable for hard rock steep slope and construction method thereof

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