CN105625443B - High-steep soil nail grass planting slope protection structure system and construction method thereof - Google Patents
High-steep soil nail grass planting slope protection structure system and construction method thereof Download PDFInfo
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- CN105625443B CN105625443B CN201610125124.1A CN201610125124A CN105625443B CN 105625443 B CN105625443 B CN 105625443B CN 201610125124 A CN201610125124 A CN 201610125124A CN 105625443 B CN105625443 B CN 105625443B
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Classifications
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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
-
- 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
- A01G20/00—Cultivation of turf, lawn or the like; Apparatus or methods therefor
- A01G20/20—Cultivation on mats
-
- 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
- E02D17/202—Securing of slopes or inclines with flexible securing means
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental Sciences (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Cultivation Of Plants (AREA)
Abstract
A high steep soil nail grass planting slope protection structure system comprises a planting layer, a soil nail reinforcing body, a vegetation plate and a metal net; the vegetation board is fixed on the inclined plane of the rock-soil slope through the soil nail reinforcing body to divide the slope into a plurality of section surfaces; laying a metal net and a planting layer on each section surface, and fixing the planting layer on the metal net and the planting plate through soil nail reinforcing bodies; the metal net and the planting layer, the planting plate and the soil nail reinforcing body act together to form a high-steep soil nail grass planting slope protection structure system capable of solidifying, protecting and beautifying rock and soil side slopes; the construction method comprises the following process flows: construction preparation → construction of the first row of soil nail reinforcing body → installation of the first row of plant growth plates → installation of the rest soil nails and plant growth plates in sequence → arrangement of monitoring points → laying of metal mesh → laying of a planting layer → covering of non-woven fabric → maintenance and nursing. The structure system is simple; the construction period is short, the labor investment is less, and the method is economical and applicable; the construction on the abrupt slope need not scaffold frame operation, utilizes safety rope protection, plant living board as stepping on the point, and factor of safety is high.
Description
Technical field
The present invention relates to a kind of high abrupt slope bank protection, greening structure system and its construction method, particularly a kind of high steep land soil
Follow closely grass planting protective slope structure system and its construction method.
Background technology
In new highway, railway both sides construction site, in order to protect original natural water area and vegetation in place, the earthwork is kept
Balance, slope is excavated using the green method in slope more than both sides of the road.
Widely used at present is that " sash soil moved in improve the original greening method " carries out earthwork slope retaining（Referring to 11-1~Figure 11-2）；Should
Slope retaining technique is：Utilizing works anchor pole is fixed and reinforced concrete girder slab formation plantation on precipitous rock side slope face
Shrub and creepers plant are planted on groove, the planting soil in groove.Process flow is：Set up scaffold → anchor pole pore-forming, system
Work → reinforced concrete girder slab groove pours → groove in filling planting soil → plantation shrub and creepers plant landscape → maintenance；Should
Method for protecting support has the following disadvantages：
The construction period of its anchor pole and reinforced concrete girder slab is longer, easily occurs earthwork slope and land slide in operating process, collapses
Collapse；Need to employ steel pipe scaffold, big machinery coordinative construction, input is big, and cost is high；And entirety perception is poor, greening is taken
Land area；Therefore the requirement that traditional " sash soil moved in improve the original greening construction method " can not meet and reduce cost, shorten the duration.
Patent publication No. discloses a kind of greening technique on precipitous soft-sided slope for CN1548663A application for a patent for invention, adopts
The method being combined with domatic anchor pole linked network and spray concrete greening technique, but still have the following disadvantages：
This method builds stable internal structure stress system using major diameter anchor pole and metal mesh sheet on slope soil,
In domatic spraying green concrete protection system, two system collective effects, mutually protection, side slope are reinforced；It is substantial amounts of
Using, oversite concrete, certain pollution is produced to environment, is unfavorable for natural water circulation；Do not save material；After oversite concrete
Planting plants are unable to, artificial reduces tree and grass coverage, reduces impression quality.
The content of the invention
It is an object of the invention to provide " a kind of high abrupt slope soil nailing grass planting protective slope structure system and its construction method ", the height
Abrupt slope soil nailing grass planting protective slope structure system is a kind of new slope retaining mode, two-in-one by using slope retaining and greening
Method, to reach best effect；It is one-stop to solve safety, civilized construction, construction cost input, environmental protection etc. and ask
Topic, accelerating construction progress, allows geotechnical slope to be able to obtain appropriate protection in a short time, green vegetation is as early as possible to greatest extent
Come into operation, reduce the development cost of Mountainous Building group, reach the purpose for the material that saves land, saves.
The technical scheme solved the above problems is：A kind of high abrupt slope soil nailing grass planting protective slope structure system, including plantation layer, are planted
Plant layer fixed structure, it is characterised in that：Described plantation layer fixed structure includes Soil-nailed body, plate from plant wastes and wire netting, plants
Raw plate is fixed on the scarf of geotechnical slope by Soil-nailed body, and slope is separated into n section face；Laid on each section face
There are wire netting, plantation layer, wire netting, plate from plant wastes fix plantation layer by Soil-nailed body；Wire netting with plantation layer, plate from plant wastes with
Soil-nailed body collective effect, is configured to solidify, protects, beautifies the high abrupt slope soil nailing grass planting protective slope structure body of geotechnical slope
It is that n span is：N is the arbitrary integer between 2~1000.
A kind of further technical scheme of described high abrupt slope soil nailing grass planting protective slope structure system is：Described Soil-nailed
The positioning branch that body is soil nailing reinforcing bar in the native hole of the hole formation of side slope scarf, anchor soil inlet hole, be enclosed on soil nailing reinforcing bar
Frame and the Soil-nailed body for the cement mortar formation being poured in native hole；The soil nailing reinforcing bar is " 7 " font, for supporting
Plate from plant wastes and fixed wire netting；It is at soil nailing reinforcing steel bars exposed end：At " 7 " prefix, at plate from plant wastes, iron wire is by wire netting and soil nailing
Reinforcing bar, plate from plant wastes colligation connection.
The plate from plant wastes is wooden plate from plant wastes, perpendicular to domatic and be fixed on by Soil-nailed body the beveling of geotechnical slope
On face, contact close with domatic, plate from plant wastes is arranged in rows into level, and line space is 450-550mm.
Related another technical scheme is：A kind of construction method of high abrupt slope soil nailing grass planting bank protection, it is to construct above-mentioned height
The construction method of abrupt slope soil nailing grass planting protective slope structure system, it utilizes plate from plant wastes and soil nailing on the scarf of geotechnical slope, people
Segmentation is separated for ground；Wire netting, plantation layer are laid on each compartmented face, wire netting, plate from plant wastes pass through Soil-nailed
Body fixes plantation layer；The construction period covering protection vegetation of non-woven fabrics 4；Wire netting and plantation layer, plate from plant wastes and soil nailing collective effect,
It is configured to solidify, protects, beautifies the high abrupt slope soil nailing grass planting protective slope structure system of geotechnical slope；The technique stream of its construction method
Cheng Shi：
Preparation of construction → construction first row Soil-nailed body → installation first row plate from plant wastes → install successively remaining soil nailing,
Plate from plant wastes → layout of the monitoring points → laying wire netting → lays plantation layer → covering non-woven fabrics → maintenance nursing；
Comprise the following steps that：
A, preparation of construction：
B, construction the 1st casting nail reinforcing body：
B1, hole position are layouted, and spacing is 1.5-2.0m between soil nailing, using rectangle or quincuncial arrangement；
B2, beat native hole：Native hole aperture is 50-150mm, and native hole hole depth is 80~4000mm；
B3, penetrate reinforcing bar:After borehole cleaning is finished, locating support is enclosed on soil nailing reinforcing bar and is put into hole, it is ensured that soil nailing reinforcing bar
Centre in hole；" 7 " prefix of soil nailing reinforcing bar exposes outside domatic 50~70mm；And it is located at native bore portion in soil nailing reinforcing bar
The locating support of setting, it is ensured that reinforcing bar is in the centre in hole, the long 1~1.5m of spacing of locating support edge nail or so, every
Soil nailing reinforcing bar should not be less than 2；
B4, slip casting：
Using the method for gravity slip casting, by proportioning by cement mortar or mortar hand-hole, gravity slip casting untill full hole, but
Need to mend slurry 1~2 time；
C, the 1st row's plate from plant wastes of installation：
Plate from plant wastes uses wooden plate from plant wastes, perpendicular to domatic and be fixed on by Soil-nailed body the scarf of geotechnical slope
On, contact close with domatic, there should not be built on stilts phenomenon；
D, repeat step B, C install each casting nail, plate from plant wastes successively：
After the Soil-nailed body of first row is installed with plate from plant wastes, from bottom to top according to step B, C identical process, work
Skill, install successively make the 2nd row, the 3rd row ... reinforcing body and n-th row's plate from plant wastes are followed closely in the n-th casting；Plate from plant wastes into level into
Arrangement is put, and line space is 450-550mm, is adjusted according to domatic gradient size；N span is：N be 2~1000 between
Arbitrary integer；
E, laying monitoring point：
F, laying wire netting：
G, lay plantation layer：
H, covering non-woven fabrics：
After plantation layer laying is finished, pushed up by slope to toe whole plane and cover non-woven fabrics immediately；
I, maintenance nursing.
The further technical scheme of the construction method of described high abrupt slope soil nailing grass planting bank protection is：Walked in A, preparation of construction
Suddenly, the specific practice is：
A1, according to scheme choice construction equipment and technique；
Slope excavating line, anchor point, bench mark, deformation observation point are should determine that before A2, construction；
A3, slope top lay earth anchor, for safety operation rope binding, fixation use；
It is A4, smooth domatic：
A5, base treatment
A6, processing soil nailing reinforcing bar
By steel bar meter up to specification into " 7 " font；It is exposed at domatic outer steel bar end and applies antirust paint 2 times.
In E, monitoring point step is laid, the construction monitoring of high abrupt slope soil nailing grass planting bank protection should at least include following content：
1. the measurement of supporting displacement；
2. earth surface cracks state, including position, fracture width observation；
3. the deformation measurement of the facility such as close to buildings and important pipeline and crack observation；
4. the WATER LEVEL CHANGES inside and outside Leakage of Foundation Pit water and foundation ditch；
5. it should especially strengthen the monitoring after rainy day and rain in monitoring process, and may jeopardize the water of supporting safety to various
Source is examined；
6. in the supporting construction stage, monitoring daily is no less than 1~2 time, is completed excavation of foundation pit, is being deformed the feelings tended towards stability
Appropriate under condition to reduce monitoring number of times, construction monitoring process should continue to the backfill of whole foundation ditch to terminate, untill work is exited in supporting.
In F, laying wire netting step, the specific practice is：
Galvanized metal net is pushed up to toe by slope and paved from top to bottom, top metal network edge is buried in the earth fixation, lower end
Appropriate to tense and retained horizontal plane, overlap joint is not less than 100mm between net and net；
Soil nailing reinforcing steel bars exposed is at end：At " 7 " prefix, at plate from plant wastes, wire netting colligation is fixed with iron wire, process of deployment
As far as possible it is close to net domatic, hanging buckling phenomena should not occurs.
In G, plantation layer step is laid, the specific practice is：
Treated seed and soil conditioner, paper pulp fiber, compound fertilizer, NMF are mixed into a certain proportion of clear
Water, is dissolved in spray seeder and being sufficiently stirred for by machinery, form uniform mixed liquor, then using current principle, pass through high-pressure pump
Effect, mixed liquor high-speed uniform is sowed grass seeds by duster to it is processed it is good it is domatic on, the grass seeds formed under uniform covering protection
Layer, unnecessary water is penetrated into soil, and fiber, colloid form translucent moisturizing top layer.
In I, maintenance nursing procedure, the specific practice is：
1., early stage sprinkling irrigation maintenance is 60 days, and mid-term leans on natural rain water curing, if meeting arid, is monthly sprayed water 2~3 times, the later stage
Maintenance is monthly sprayed water 2 times；
2. after, emerging 15 days, answer nitrogen fertilizer application once, after 10 Tian Shi composite fertilizers once, and suitably poured according to climatic condition
Water；
3., timing is pointedly sprayed insecticide, and periodically removes weeds.
" a kind of high the abrupt slope soil nailing grass planting protective slope structure system and its construction method " of the present invention has the characteristics that and had
Beneficial effect：
A kind of high abrupt slope soil nailing grass planting protective slope structure system of the present invention is using plate from plant wastes+Soil-nailed body in ground
On the scarf of side slope, segmentation is artificially separated；Wire netting, plantation layer, wire netting, plant life are laid on each division surface
Plate fixes plantation layer by Soil-nailed body；Construction period covering non-woven fabrics protection vegetation；Wire netting with plantation layer, plate from plant wastes with
Soil-nailed body collective effect, reaches solidification, protection, the purpose for beautifying geotechnical slope.
Its Force principle is：The stress that plantation layer is produced is acted on soil nailing reinforcing bar by plate from plant wastes, wire netting；Soil nailing steel
Muscle is then embedded in side slope scarf hole, cement injection mortar formation Soil-nailed body；Pass through the friction of Soil-nailed body and soil
Power, makes the passive tension of soil nailing and is stabilized it to the soil body, plantation layer with constraining, reinforcing, effectively prevent the deformation of cubic metre of earth side slope；
The native stone particle that the vegetation on layer solidifies side slope top layer with its flourishing root system is planted, rain drop erosion and water and soil stream is protected it from
Lose.
Therefore, compared with prior art, a kind of high abrupt slope soil nailing grass planting protective slope structure system of the present invention and its construction
The beneficial effect of method is：
1st, install light：Main material soil nailing of the present invention is made using soil nailing reinforcing bar, iron wire and a small amount of cement, plate from plant wastes
Using wooden plate from plant wastes, the material used is aided in compared to existing lighter without using hoisting machinery；Process is few, construction week
Phase is few, labour's less investment.
2nd, than existing afforestation project compared with support engineering, put into less, economic and practical：
1. structural system of the present invention overlaps afforestation project with support engineering, employs permanent Greening Design to substitute branch
Nurse makees, it is to avoid the secondary input of supporting.The strong slope ecological environment of a greenery is created, improves the scape of road in park
See, meet existing environmental requirement, it is economic and practical；
2. it is recycled and recycles：Material in work progress, can be recycled；Part soil nailing reinforcing bar exists with breathable films
Grass planting layer is recyclable after playing a role, then puts into next engineering.
3. safety coefficient is high：
During a kind of high abrupt slope soil nailing grass planting protective slope structure system construction, construct without scaffold operation, utilize on abrupt slope
The protection of safety rope, with plate from plant wastes as trampling a little so that security is more secure.
With reference to the accompanying drawings and examples to a kind of high abrupt slope soil nailing grass planting protective slope structure system of the present invention and its construction
The technical characteristic of method is described further.
Brief description of the drawings
Fig. 1 is the structural representation of the high abrupt slope soil nailing grass planting protective slope structure system of the present invention；
Fig. 2 is the schematic view of the mounting position of locating support 13；
Fig. 3 is the structural representation of soil nailing reinforcing bar；
Fig. 4~Figure 10 is the specific steps schematic diagram of the construction method of high abrupt slope soil nailing grass planting bank protection：
Fig. 4 be high abrupt slope basic unit it is smooth and cleaning after view；
Fig. 5 be constructed the n-th casting nail reinforcing body after view；
Fig. 6 is to install view after n-th row's plate from plant wastes；
Fig. 7 is view after laying wire netting；
Fig. 8 is to lay view after plantation layer；
Fig. 9 is view after covering non-woven fabrics；
Figure 10 is the high abrupt slope soil nailing grass planting bank protection profile state schematic diagram after vegetation germination；
Figure 11-1~Figure 11-2 is existing sash soil moved in improve the original greening method Construction State schematic diagram.
In Fig. 1~Figure 10：
The native hole of 1- Soil-naileds body, 11-, 12- soil nailings reinforcing bar, 13- locating supports, 14- cement mortar；
2- wire nettings, 3- plate from plant wastes, 4- non-woven fabrics, 5- kinds plant layer, the length of L- soil nailing reinforcing bar flat segments；
In Figure 11-1~Figure 11-2：
21- reinforced concrete beams, 22- sash grass plantings, 23- plate from plant wastes, 24- soil moved in improve the originals（Planting soil）, 25- original soils layer, 26- anchor poles.
Embodiment
Embodiment one：
A kind of high abrupt slope soil nailing grass planting protective slope structure system, including plantation layer 5, plant layer fixed structure, described plantation
Layer fixed structure includes Soil-nailed body 1, plate from plant wastes 3 and wire netting 2, and plate from plant wastes 3 is fixed on ground side by Soil-nailed body 1
On the scarf on slope, slope is separated into n section face；Wire netting 2, plantation layer 5, wire netting 2, plant life are laid with each section face
Plate 3 fixes plantation layer 5 by Soil-nailed body 1；Wire netting and plantation layer, plate from plant wastes and Soil-nailed body collective effect, are constituted
It can solidify, protect, beautifying the high abrupt slope soil nailing grass planting protective slope structure system of geotechnical slope, n span is：N be 2~
Arbitrary integer between 1000；Referring to Fig. 1, in Fig. 1, there are 4 section faces.
Described Soil-nailed body 1 is the soil nailing in the native hole 11 of the hole formation of side slope scarf, anchor soil inlet hole 11
Reinforcing bar 12, the locating support 13 being enclosed on soil nailing reinforcing bar（Referring to Fig. 2）And be poured in native hole cement mortar 14 formation
Soil-nailed body；The soil nailing reinforcing bar 12 is " 7 " font, for supporting plate from plant wastes and fixed wire netting（Referring to Fig. 3）, in soil
It is at the nail exposed junction of reinforcing bar 12：At " 7 " prefix, at plate from plant wastes 3, iron wire 6 is by wire netting 2 and soil nailing reinforcing bar 12, the colligation of plate from plant wastes 3
Connection.
The plate from plant wastes is wooden plate from plant wastes, perpendicular to domatic and be fixed on by Soil-nailed body the beveling of geotechnical slope
On face, contact close with domatic, plate from plant wastes is arranged in rows into level, and line space is 450-550mm；
The stress that plantation layer is produced is acted on soil nailing reinforcing bar by plate from plant wastes, wire netting；Pass through Soil-nailed body and soil
Frictional force, make the passive tension of Soil-nailed body and stabilized it to the soil body, plantation layer with constraining, reinforcing, effectively prevent soil
Fang Bianpo deformation；The native stone particle that the vegetation on layer solidifies side slope top layer with its flourishing root system is planted, rainwater is protected it from
Wash away and soil erosion.
Embodiment two：
A kind of construction method of high abrupt slope soil nailing grass planting bank protection, it is to be formed to construct high abrupt slope soil nailing plant described in embodiment one
The construction method of careless protective slope structure system, it utilizes plate from plant wastes and Soil-nailed body on the scarf of geotechnical slope, artificially
It is separated segmentation；Wire netting 2, plantation layer 5 are laid on each compartmented face, wire netting 2, plate from plant wastes 3 pass through Soil-nailed
Body fixes plantation layer 5；The construction period covering protection vegetation of non-woven fabrics 4；Wire netting is common with vegetable layer, plate from plant wastes and Soil-nailed body
Same-action, is configured to solidify, protects, beautifies the high abrupt slope soil nailing grass planting protective slope structure system of geotechnical slope（Referring to Fig. 1）；Its
The technological process of construction method is：
Preparation of construction → construction first row Soil-nailed body → installation first row plate from plant wastes → install successively remaining soil nailing,
Plate from plant wastes → laying monitoring point → laying wire netting → lays plantation layer → covering non-woven fabrics → maintenance nursing → material recovery profit
With；
Comprise the following steps that：
A, preparation of construction：
A1, according to scheme choice construction equipment and technique, and check equipment operation situation, arrange live water, electricity, photograph
The inspection and keeping that raw material are carried out after bright, material stockyard and construction working face, materials arrival are deposited；
Slope excavating line, anchor point, bench mark, deformation observation point etc. are should determine that before A2, construction；It is determined that after be subject to it is appropriate
Protection, is that handing-over inspection and the work in transfering work face are prepared as detection foundation；
A3, slope top lay earth anchor, for safety operation rope binding, fixation use；Earth anchor can choose 5 years raw arbors,
The φ 48.3*3.6mm steel pipes of 1.0 meters of length can be used, underground is anchored into and is made；
It is A4, smooth domatic：（Referring to Fig. 4）
Cleaning, it is smooth it is domatic to remove the debris such as float stone, tree root of the diameter more than 2cm, in favor of plantation layer with it is domatic
With reference to using small machine or shovel spade progress cutting side slope, to reach the gradient and appropriate flatness of design code；
A5, base treatment：
As for rock slope, before injection plantation layer, then the dust thing on rock face should be first rinsed well with water；
Such as soil nutrient is barren and pH value is not in good time, is necessary to apply base fertilizer and soil conditioner, dose prior to seeding
Depending on the fertility situation of soil；
A6. soil nailing reinforcing bar is processed
By steel bar meter up to specification into " 7 " font（Referring to Fig. 3）；It is exposed at domatic outer steel bar end 121 and applies anti-
Rust paint 2 times；
The reinforcing bars of φ 18 being used the soil nailing reinforcing bar used, the length L of its flat segments is divided into three according to different soil properties more
Kind, for details see attached table one《The length L lists of different soil properties soil nailing reinforcing bar flat segments》；
B, construction the 1st casting nail reinforcing body：（Referring to Fig. 5）
B1, hole position are layouted, and spacing is 1.5-2.0m between soil nailing, using rectangle or quincuncial arrangement；
B2, beat native hole：Native hole aperture is 50-150mm, and native hole hole depth is 800~4000mm；
Should try one's best to improve operating efficiency and use mechanical hole building, eyelet direction with it is domatic vertical, its position deviation must not be big
In 150mm, level inclination error cannot be greater than 3o, and general aperture is that 50mm, aperture tolerance are+20mm~-5mm, hole depth
It is+200mm~-50mm for 800~3000mm, allowable error；When barrier is met in pore forming process need to adjust, it must not influence
Borehole cleaning inspection is carried out after supporting safety, pore-forming, to should be handled in time at collapse hole；
B3, penetrate reinforcing bar：After borehole cleaning is finished, locating support 13 is enclosed on soil nailing reinforcing bar 12 and is put into hole, it is ensured that soil nailing
Reinforcing bar is in the centre in hole；" 7 " prefix of soil nailing reinforcing bar exposes outside domatic 50~70mm；
Locating support 13 on every soil nailing reinforcing bar should not be less than 2；Locating support 13 uses reinforcement fabrication, locating support
Construction answers the free-flowing of without prejudice to injection slurry；
B4, slip casting：
Using the method for gravity slip casting, by proportioning by cement mortar or mortar hand-hole, gravity slip casting untill full hole, but
Need to mend slurry 1~2 time；
During slip casting, grouting pipe answers patchhole bottom, spreads out conduit with uniform speed slow while slip casting, the pulp of conduit
Mouth should be in hole below the surface of slurry all the time, it is ensured that gas can be escaped all in hole；
C, the 1st row's plate from plant wastes of installation：
Plate from plant wastes 3 uses wooden plate from plant wastes, and specification is thick and wide：10mm × 50mm, length is true according to domatic concavo-convex fluctuating
It is fixed；
Plate from plant wastes perpendicular to domatic and be fixed on by Soil-nailed body 1 on the scarf of geotechnical slope, with it is domatic indirectly
Touch close, there should not be built on stilts phenomenon；
D, repeat step B, C install each casting nail, plate from plant wastes successively：
After the Soil-nailed body of first row is installed with plate from plant wastes, from bottom to top according to step B, C identical process, work
Skill, install successively make the 2nd row, the 3rd row ... reinforcing body and n-th row's plate from plant wastes are followed closely in the n-th casting；Plate from plant wastes into level into
Arrangement is put, and line space is 450-550mm, is adjusted according to domatic gradient size；N span is：N be 2~1000 between
Arbitrary integer；Referring to Fig. 6：Install in view after n-th row's plate from plant wastes, Fig. 6；n=4；
E, laying monitoring point：
The construction monitoring of high abrupt slope soil nailing grass planting bank protection supporting should at least include following content：
1. the measurement of supporting displacement；
2. earth surface cracks state, including position, fracture width observation；
3. the deformation measurement of the facility such as close to buildings and important pipeline and crack observation；
4. the WATER LEVEL CHANGES inside and outside Leakage of Foundation Pit water and foundation ditch；
5. it should especially strengthen the monitoring after rainy day and rain in monitoring process, and may jeopardize the water of supporting safety to various
Source is examined；
6. in the supporting construction stage, monitoring daily is no less than 1~2 time, is completed excavation of foundation pit, is being deformed the feelings tended towards stability
Appropriate under condition to reduce monitoring number of times, construction monitoring process should continue to the backfill of whole foundation ditch to terminate, untill work is exited in supporting；
F, laying wire netting：（Referring to Fig. 7）
Pushed up to toe and paved from top to bottom by slope using 14# galvanized metals net, top metal network edge is buried in the earth fixation,
Lower end is suitably tensed and retained horizontal plane, and overlap joint is not less than 100mm between net and net；
Soil nailing reinforcing steel bars exposed is at end：At " 7 " prefix, at plate from plant wastes, the colligation of wire netting 2 is consolidated with the iron wire 6 of 2mm diameters
Fixed, process of deployment is tried one's best, and to be close to net domatic, hanging buckling phenomena should not occurs；
G, lay plantation layer：
Treated seed and soil conditioner, paper pulp fiber, compound fertilizer, NMF are mixed into a certain proportion of clear
Water, is dissolved in spray seeder and being sufficiently stirred for by machinery, form uniform mixed liquor, then using current principle, pass through high-pressure pump
Effect, mixed liquor high-speed uniform is sowed grass seeds by duster to it is processed it is good it is domatic on, the grass seeds formed under uniform covering protection
Layer, unnecessary water is penetrated into soil, and fiber, colloid form translucent moisturizing top layer；（Referring to Fig. 8）
H, covering non-woven fabrics：
After plantation layer laying is finished, pushed up by slope to toe whole plane and cover non-woven fabrics 4 immediately；（Referring to Fig. 9）
Non-woven fabrics lap-joint (be no less than 150mm) and every non-woven fabrics are fixed with iron wire fourth or bamboo stick end to end,
And sprinkle a small amount of fine sand or fine earth flanging；
Period is sprinkled water using Dey-Dose, keeps domatic moistening, it is to avoid directly wash away plantation layer.Treat that vegetation grows to
After 30mm is high, non-woven fabrics can be removed；
The main function of non-woven fabrics is to reduce domatic moisture evaporation, improves germination growing environment, prevents bird from pecking at
Seed, washes away while can also mitigate precipitation (heavy rain) to seed.15 days or so are about spent, when careless seedling length is to 3~5 centimetres
When should take advantage of the cloudy day or during afternoon 3 after, non-woven fabrics is lifted in time, through a night dew water extraction seedling, seedling is adapted to the Nature as early as possible
Climatic environment.Non-woven fabrics can not be raised too early, early to be unable to undergo solar exposure and harsh weather influence because careless seedling children is tender, too late
Careless seedling growth deformity can be caused by raising；
I, maintenance nursing：
Early stage sprinkling irrigation maintenance is 60 days, and mid-term leans on natural rain water curing, if meeting arid, is monthly sprayed water 2~3 times, the later stage supports
Shield is monthly sprayed water 2 times；After emerging 15 days, in order to promote lawn growth, answer nitrogen fertilizer application (5 grams/m2) once, applied compound after 10 days
Fertilizer (15 grams/m2) is once；And suitably watered according to climatic condition, it is possible to reach the effect of green side slope；Timing is pointedly
Spray insecticide, periodically remove weeds, it is ensured that plant health grows；High abrupt slope soil nailing grass planting protective slope structure system is formed completely（Ginseng
See Figure 10）.
The slope protection mechanism of the high abrupt slope soil nailing grass planting protective slope structure system of the present invention is：
Using engineering materials such as active plant and binding reinforcement concrete synthetic materials, one is built with itself domatic
The guard system of growth ability, is reinforced by the growth of plant with reference to permanent Soil-nailed body side slope；According to side slope
The characteristics of topography and geomorphology, soil property and regional climate, Soil-nailed body is set inside slope soil, soil body surface covers one layer of soil
Geosynthetics simultaneously plant various plants by certain combination with spacing；Side slope internal displacement is constrained by Soil-nailed body to become
Shape；The purpose of root system reinforcement, cauline leaf fluid erosion prevention is reached by the vegetative activity of plant, is handled by ecological vestige, can be
It is domatic to form dense vegetative coverage, deep-rooted root system is formed in topsoil, effectively suppresses storm water runoff side slope
Corrode, increase the shearing strength of the soil body, reduce pore water pressure and the soil body from gravity, two kinds of technologies are combined significantly to carry
The stability and erosion resistibility of high slope.
Subordinate list one：The length L lists of different soil properties soil nailing reinforcing bar flat segments
Long measure：mm
Claims (6)
1. a kind of construction method of high abrupt slope soil nailing grass planting bank protection, it is to construct following high abrupt slope soil nailing grass planting protective slope structure systems
Construction method, the high abrupt slope soil nailing grass planting protective slope structure system include plantation layer, plant layer fixed structure, described plantation
Layer fixed structure includes Soil-nailed body（1）, plate from plant wastes（3）And wire netting（2）, plate from plant wastes（3）Pass through Soil-nailed body（1）Gu
It is scheduled on the scarf of geotechnical slope, slope is separated into n section face；Wire netting is laid with each section face（2）, plantation layer
（5）, wire netting（2）, plate from plant wastes（3）Pass through Soil-nailed body（1）Fixed plantation layer（5）；Wire netting with plantation layer, plate from plant wastes with
Soil-nailed body collective effect, is configured to solidify, protects, beautifies the high abrupt slope soil nailing grass planting protective slope structure body of geotechnical slope
It is that n span is：N is the arbitrary integer between 2~1000；The spy of the construction method of the high abrupt slope soil nailing grass planting bank protection
Levy and be：It is separated segmentation using plate from plant wastes and soil nailing on the scarf of geotechnical slope, artificially；In each compartmented
Wire netting is laid on face（2）, plantation layer（5）, wire netting（2）, plate from plant wastes（3）Pass through Soil-nailed body（1）Fixed plantation layer
（5）；Construction period covers non-woven fabrics（4）Protect vegetation；Wire netting and plantation layer, plate from plant wastes and soil nailing collective effect, constitute energy
Enough solidifications, protection, the high abrupt slope soil nailing grass planting protective slope structure system of beautification geotechnical slope；The technological process of its construction method is：
Preparation of construction → construction first row Soil-nailed body → installation first row plate from plant wastes → installs remaining soil nailing, plants life successively
Plate → layout of the monitoring points → laying wire netting → lays plantation layer → covering non-woven fabrics → maintenance nursing；
Comprise the following steps that：
A, preparation of construction：
B, construction the 1st casting nail reinforcing body：
C, the 1st row's plate from plant wastes of installation：
B1, hole position are layouted, and spacing is 1.5-2.0m between soil nailing, using rectangle or quincuncial arrangement；
B2, beat native hole：Native hole aperture is 50-150mm, and native hole hole depth is 800~4000mm；
B3, penetrate reinforcing bar:After borehole cleaning is finished, by locating support（13）It is enclosed on soil nailing reinforcing bar（12）On be put into hole, it is ensured that soil nailing
Reinforcing bar is in the centre in hole；" 7 " prefix of soil nailing reinforcing bar exposes outside domatic 50~70mm；And it is located at native hole in soil nailing reinforcing bar
The locating support that part is set, it is ensured that reinforcing bar is in the centre in hole, the long 1~1.5m of spacing of locating support edge nail or so,
Every soil nailing reinforcing bar should not be less than 2；
B4, slip casting：
Using the method for gravity slip casting, by proportioning by cement mortar or mortar hand-hole, gravity slip casting needs 1 untill full hole
~2 benefit slurries；
C, the 1st row's plate from plant wastes of installation：
Plate from plant wastes（3）Using wooden plate from plant wastes, perpendicular to domatic and pass through Soil-nailed body（1）It is fixed on the beveling of geotechnical slope
On face, with domatic close contact, there should not be built on stilts phenomenon；
D, repeat step B, C install each casting nail, plate from plant wastes successively：
After the Soil-nailed body of first row is installed with plate from plant wastes, from bottom to top according to step B, C identical process, technique,
Install successively and make the 2nd row, the 3rd row, until reinforcing body and n-th row's plate from plant wastes are followed closely in the n-th casting；Plate from plant wastes is into level into arrangement
Put, line space is 450-550mm, adjusted according to domatic gradient size；N span is：N is times between 2~1000
Meaning integer；
E, laying monitoring point：
F, laying wire netting：
G, lay plantation layer：
H, covering non-woven fabrics：
After plantation layer laying is finished, pushed up by slope to toe whole plane and cover non-woven fabrics immediately；
I, maintenance nursing.
2. the construction method of high abrupt slope soil nailing grass planting bank protection according to claim 1, it is characterised in that：In A, preparation of construction
Step, the specific practice is：
A1, according to scheme choice construction equipment and technique；
Slope excavating line, anchor point, bench mark, deformation observation point are should determine that before A2, construction；
A3, slope top lay earth anchor, for safety operation rope binding, fixation use；
It is A4, smooth domatic：
A5, base treatment：
A6, processing soil nailing reinforcing bar：By steel bar meter up to specification into " 7 " font；It is exposed at domatic outer steel bar end and applies anti-
Rust paint 2 times.
3. the construction method of high abrupt slope soil nailing grass planting bank protection according to claim 1, it is characterised in that：In E, lay monitoring
Point step, the construction monitoring of high abrupt slope soil nailing grass planting bank protection should at least include following content：
1., the measurement of supporting displacement；
2., earth surface cracks state, including position, fracture width observation；
3., close to buildings and the deformation measurement of important pipeline facility and crack observation；
4., the WATER LEVEL CHANGES inside and outside Leakage of Foundation Pit water and foundation ditch；
5. it, should especially strengthen the monitoring after rainy day and rain in monitoring process, and may jeopardize the water source of supporting safety to various
Examined；
6., in the supporting construction stage, monitoring daily is no less than 1 time, completes excavation of foundation pit, deformation is fitted in the case of tending towards stability
Number of times is monitored when reducing, construction monitoring process should continue to the backfill of whole foundation ditch to terminate, untill work is exited in supporting.
4. the construction method of high abrupt slope soil nailing grass planting bank protection according to claim 1, it is characterised in that：In F, laying metal
Net step, the specific practice is：
By galvanized metal net（2）Pushed up to toe and paved from top to bottom by slope, top metal network edge is buried in the earth fixation, lower end is fitted
When tensing simultaneously retained horizontal plane, overlap joint is not less than 100mm between net and net；
Soil nailing reinforcing steel bars exposed is at end：At " 7 " prefix, at plate from plant wastes, use iron wire（6）By wire netting（2）Colligation is fixed, and is laid
It is domatic that Cheng Jinliang is close to net, hanging buckling phenomena should not occurs.
5. the construction method of high abrupt slope soil nailing grass planting bank protection according to claim 1, it is characterised in that：In G, lay plantation
Layer step, the specific practice is：
Treated seed and soil conditioner, paper pulp fiber, compound fertilizer, NMF are mixed into a certain proportion of clear water,
It is dissolved in spray seeder and is sufficiently stirred for by machinery, forms uniform mixed liquor, then using current principle, pass through the work of high-pressure pump
With, mixed liquor high-speed uniform is sowed grass seeds by duster to it is processed it is good it is domatic on, form the lower grass seeds layer of uniform covering protection, it is many
Remaining water is penetrated into soil, and fiber, colloid form translucent moisturizing top layer.
6. the construction method of high abrupt slope soil nailing grass planting bank protection according to claim 1, it is characterised in that：In I, maintenance nursing
Step, the specific practice is：
1., early stage sprinkling irrigation maintenance is 60 days, and mid-term leans on natural rain water curing, if meeting arid, is monthly sprayed water 2~3 times, late maintaining
Monthly spray water 2 times；
2. after, emerging 15 days, answer nitrogen fertilizer application once, after 10 Tian Shi composite fertilizers once, and suitably watered according to climatic condition；
3., timing is pointedly sprayed insecticide, and periodically removes weeds.
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| CN106193071A (en) * | 2016-09-14 | 2016-12-07 | 山东科技大学 | The multiple structure Ecological Slope protection system of a kind of band diaphragm plate and construction method thereof |
| CN107023023A (en) * | 2017-04-17 | 2017-08-08 | 三峡大学 | Slope vegetation restoration structure and method |
| CN109555134A (en) * | 2018-10-09 | 2019-04-02 | 荟岩环境建设(无锡)有限公司 | The construction method of three-dimensional vegetation body when a kind of river high gradient slope zoology green-recovery |
| CN111074909A (en) * | 2018-10-22 | 2020-04-28 | 黄种玉 | Gabion fixing construction method |
| CN109440788A (en) * | 2018-11-16 | 2019-03-08 | 安徽国祯环境修复股份有限公司 | A kind of surface mine rock side slope stereo ecological restorative procedure |
| CN109629581A (en) * | 2018-12-17 | 2019-04-16 | 中国十七冶集团有限公司 | A kind of non-support high gradient slope covers green construction method |
| CN109853596B (en) * | 2019-03-28 | 2023-11-03 | 广州桃园景观工程有限公司 | Highway slope protection greening structure and construction process thereof |
| CN111395357B (en) * | 2020-04-23 | 2024-06-14 | 中铁建设集团有限公司 | Spreading type recyclable soil nailing wall supporting system |
| CN111395345B (en) * | 2020-04-23 | 2024-05-28 | 中铁建设集团有限公司 | Paving operation vehicle for soil nailing wall construction |
| CN112889593A (en) * | 2021-01-14 | 2021-06-04 | 陇东学院 | Reinforcing steel bar frame for loess slope protection and slope protection method |
| CN113455306A (en) * | 2021-07-26 | 2021-10-01 | 中煤科工集团北京土地整治与生态修复科技研究院有限公司 | Vegetation greening method |
| CN114411750B (en) * | 2021-12-14 | 2024-05-28 | 乌海市公路工程有限公司 | Soil nailing wall supporting structure and construction method thereof |
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| JP2992302B2 (en) * | 1990-03-14 | 1999-12-20 | 天龍工業株式会社 | Slope protection structure and construction method |
| KR20040072587A (en) * | 2004-07-23 | 2004-08-18 | 박성언 | Slope tree-planting and stabilization construction method using geo-grid and vegetation mat |
| CN1920185A (en) * | 2005-08-24 | 2007-02-28 | 沈敏鑫 | Construction method of green concrete |
| CN102839679B (en) * | 2012-09-26 | 2015-01-07 | 贵州科农生态环保科技有限责任公司 | Method for protecting vegetation of concrete slope |
| CN103774673A (en) * | 2012-10-25 | 2014-05-07 | 陕西龙海工程建设有限公司 | Foundation pit supporting construction technology |
| CN103290854B (en) * | 2013-06-28 | 2015-06-24 | 中铁二局股份有限公司 | Fast construction method of rock slope protection |
| CN204491635U (en) * | 2015-03-27 | 2015-07-22 | 浙江华东建设工程有限公司 | Hauling type high gradient slope ecological management device |
| CN205591233U (en) * | 2016-03-06 | 2016-09-21 | 广西建工集团第五建筑工程有限责任公司 | High -steep soil nail grass planting slope protection structure system |
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