CN103774679A - Rock side slope net hanging method - Google Patents

Rock side slope net hanging method Download PDF

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Publication number
CN103774679A
CN103774679A CN201210404963.9A CN201210404963A CN103774679A CN 103774679 A CN103774679 A CN 103774679A CN 201210404963 A CN201210404963 A CN 201210404963A CN 103774679 A CN103774679 A CN 103774679A
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domatic
slope
net
anchor pole
linked network
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CN201210404963.9A
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CN103774679B (en
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戴子云
韩烈保
濮阳雪华
高晨浩
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Beijing Forestry University
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Beijing Forestry University
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Abstract

The invention relates to a rock side slope net hanging method which includes the following steps of slope clearing, net hanging and anchoring. During anchoring, long anchor rods are selected with the interval as 1-2m, short anchor nails are arranged at the other positions with the distance as 0.5-1m. According to the method, the long anchor rods and the short anchor nails are combined, the anchor rod distribution density is ensured, the engineering cost is saved, the combination portions of adjacent wire nets can be closely connected, and base materials injected onto the nets in the later period can be reserved for a long term. The method effectively restrains scouring of rainwater to a slope and water and soil loss.

Description

A kind of method of rock slope linked network
Technical field
The present invention relates to side slope linked network field, be specifically related to side slope linked network of a kind of speedway and preparation method thereof.
Background technology
It is domatic that in expressway construction, excavation section forms exposed cutting, both destroyed vegetation, damages the ecological homeostasis, is very easily subject to again the erosion of wind and rain etc., causes soil erosion, jeopardizes the safety of highway.Used employing grouts the structure such as the rectangular slab of stone or cement throwing jet and carries out bank protection processing, along with the raising of people's environmental protection and aesthetic consciousness, need be to the exposed domatic processing of afforesting, to prevent domatic erosion and weathering, recover natural vegetation, in greening, play the effect beautifying, sit in car in the hope of reaching people, the artistic conception of car row in picture.
Slope of highway greening was just risen in recent years, and the many places of protection of stablizing stone matter and hard soil-slope are also rested on to traditional hard protection, as concrete spray anchor, mortar rubble masonry pavement, stone masonry barricade etc.
These traditional engineering protection costs are high, affected highway landscape, and ecological vegetation is caused to permanent damage.Because above-mentioned means of defence opposite side domatic has become sealing, part side slope can not be discharged in time because of underground water and be occurred slope instability, caves in etc.
Traditional method for greening side slope be toe plant climbing plant, slope top plant Hanging Plants on scar, dig planting groove or fish-scale pit plant climb, Hanging Plants and flowering shrub etc. realize greening.These methods are simple, but speed of application is slow, maintenance difficulty, and survival rate is low, and importantly scar reaches completely and covers and often need long time.
The plant protection of expressway slope is not if carried out manual intervention, and dead soil is difficult to reach the rapid Cover of vegetation.Linked network Seed spraying technology is exactly by the one in anchored metal mesh in side slope, steel mesh reinforcement or high strength plastics three dimensional network, adopt compressed ir spray gun by the soil moved in to improve the original mixing be ejected into domatic on, spray again vegetation seed thereon, by the root system of vegetation prosperity and combining closely of dictyosome, slope of highway is reached to the object of protection.Soil moved in to improve the original is that advantage has been created in the growth of vegetation in side slope, and its composition is difference with the difference of plant growth conditions in side slope.According to the kind of the feature choose reasonable nets such as slope gradient, geological condition, temperature, rainfall, the vegetative protection effect of side slope will be better.
This technology is applicable to side slope is more stable, slope wash is slight embankment and the protection of cut slope.Linked network Seed spraying technology is stronger to the compliance of slope height, ratio of slope.For the protection of high slope, this technology, in conjunction with appropriate bricklaying safeguard procedures, can reach not only firm but also economical, not only environmental protection but also good result attractive in appearance.By linked network, can increase the erosion resistibility of soil moved in to improve the original, improve widely the adhere to condition of soil moved in to improve the original in side slope simultaneously, suddenly on the rock side slope of 1: 0.75, can successfully cover vegetation.Because spraying and seeding afforesting has higher requirement to plant equipment and construction technology, be subject to the impact of the various factors such as apolegamy and grass seeds growth characteristics of landform, weather, water and soil, grass seeds.
CN200810046488.6 discloses the method for mud stone source substrate to the protection of stone matter slope ecological; wherein Instructions Page 3 first paragraph discloses on the smooth stone matter side slope face of matrix according to the long anchor pole of 1m × 1m spacing quincuncial arrangement 100cm and the long holdfast of 60cm, by 5cm × 5cm galvanized wire mesh linked network.
CN201010101189.5 discloses a kind of method of vegetation mesh revetment, comprise the following steps, by riverbank make be less than 70 ° smooth domatic, installation specification is the anchor pole of φ 14-18mm, L80-140cm on domatic, spacing is 80cm × 80cm, and pour into Anchor Agent and fix, domatic reserved rock-bolt length 9-11cm; Hanging specification along the domatic paving of step 1) is 14 #, mesh 5cm × 5cm galvanized wire mesh, and be fixed on anchor pole, make galvanized wire mesh and domatic distance protection 4-5cm.(operation of embodiment 2 is wherein: by riverbank make 30-55 ° domatic, installation specification is the anchor pole of φ 16mm, L120cm on domatic, spacing is 80cm × 80cm, and pours into Anchor Agent and fix, domatic reserved rock-bolt length 10cm; Hanging specification along the domatic paving of step 1) is 14 #, mesh 8cm × 8cm galvanized wire mesh, and be fixed on anchor pole, make galvanized wire mesh and domatic distance protection 4-5cm)
Existing technology is found in enforcement engineering, in CN200810046488.6 technology, anchor pole and holdfast layout density are excessive, holdfast and anchor pole are long, cause engineering cost to rise, and CN201010101189.5 technology is not used holdfast to connect two adjacent wire gauze, and the wire gauze mesh using in embodiment is excessive, the base material that causes adjacent wire gauze place to sow grass seeds by duster easily comes off after heavy rain.On this basis, the present invention should control the engineering cost of holdfast and anchor pole, can not reduce again workmanship.The lawn in all parts of the country technical indicator of sowing grass seeds by duster exists areal variation.Inventor tests with regard to the net hanging method of rock slope, sums up a set of comparatively ripe complete screening technology scheme.
Summary of the invention
The object of this invention is to provide a kind of method of rock slope linked network.
The method of a kind of rock slope linked network provided by the invention, comprises the following steps: clear up domatic, linked network, anchoring.
When described anchoring, when anchoring, the lap-joint of net and net is used long anchor pole, and spacing is 1-2m, and all the other positions are short holdfast, and spacing is 0.5m-1.0m.The holdfast of described use or anchor pole, the reinforcing bar that is Φ 6mm is prefabricated, and its long anchor pole is U-shaped, and length is 0.6m-1.5m; Short holdfast is L-type, and long is 0.3m-0.6m.
In described linked network, wire side and domatic between distance be 3-4cm.
Described net is three-dimension vegetative net, adopts galvanized wire mesh, and specification is: 14#; Mesh: 5cm × 5cm; Net wide: 200cm.
When described cleaning is domatic, the domatic gradient is 55-65 °.
Concrete, rock slope net hanging method comprises the following steps:
1) clear up domatic: advance inwards about 8-12m along top, slope outward flange, form 55-65 ° stablize domatic, be preferably 60 °;
2) linked network: linked network from top to bottom, wire side and domatic between keep about 3-4cm space, galvanized wire mesh is extended to 0.60-0.80m to top top, slope, can be pressed under the catchwater of top, slope as degree, net and net between overlap distance be 0.10-0.15m;
3) anchoring: in linked network construction or should beat long anchor pole from top to bottom after linked network, interval 2m additionally arranges short holdfast simultaneously in the middle of adjacent long anchor pole." L " type holdfast arranges by spacing 50cm × 50cm, and anchor pole or holdfast will be across two nets in net oblique cut grafting place, make it be unified into an entirety.
Described step 2 is further: after top, slope fixes, linked network from top to bottom, when laying, should strain net, wire side and domatic between keep about 3-4cm space, more than galvanized wire mesh is extended to 60cm to top top, slope, can be pressed under the catchwater of top, slope as spending, after fixing with long anchor pole, backfill, the overlap distance between net and net is 10-15cm, with burning silk by firm its colligation; Spread whole order fixing from top to bottom with long anchor pole and short holdfast afterwards.
When described step 3) anchoring, for the covering layer rock side slope (as being greater than 2.0m) of being altogether unjustifiable, density is every square metre and is no less than 8 timbers nails, and preferably T-shape length is the timber nail of 1.0m or 1.2m, every square metre of 10 timbers nail; To domatic out-of-flatness place, suitably squeeze into the short holdfast that long 20 ~ 30cm does not wait, so that zinc-plated net is pressed close to is domatic; With rig punching on domatic, then with anchor pole or holdfast, wire gauze is fixed.
Because long anchor pole has the double action of Gu Po and linked network concurrently, therefore should be according to domatic concrete condition in the time arranging length anchor pole, at the danger stone place that can not remove in advance and the joint fissure quantity that long anchor pole should be suitably encrypted in growth place, as 1.0m; And replacing long anchor pole at slope leveling, the available short anchor pole in Rock Slide Stability place, spacing can suitably be adjusted, as 1.0m.
The method of this side slope linked network provided by the invention is applicable to decomposed rock, and the soil property that the soft rock that soil is fewer and soil hardness are high is domatic.Want make concrete analyses of concrete problems simultaneously, as:
(1) hard rock side slope: as granite, diorite, Mesozoic sandstone, the hard not easy-weathering in surface, be full of cracks less and when good stability, except specific (special) requirements, generally do not consider to adopt ditching grass planting bank protecting method;
(2) Soft Rock Slope: as magma tuff, shale, the 3rd discipline mud stone, siltstone etc., whether easy-weathering can sand and the number of be full of cracks according to it, can adopt the ditching linked network grass planting technology of sowing grass seeds by duster;
(3) easy-weathering hard rock: as after the excavation such as serpentinite, clay slate at short notice weathering be sand or the rock that is decomposed into shred along crack, by Soft Rock Slope processing.
More difficult domatic in these greenings, by adding Nutrition Soil, create plant growing condition, three-dimensional earthwork plays the effect of reinforcing rib, and the material that prevents from sowing grass seeds by duster peels off, thereby reaches the object of greening.
Construction should be noted that following some:
1, before construction, conscientiously check domaticly, unsettled slope body is processed after stable can carry out domatic construction.
2, linked network sow grass seeds by duster best construction period is 3-6 month, when construction, selects different anchor pole density according to climatic characteristic.
3,, when sprayed construction, ejiction opening will be with domatic vertical.
4, the construction of forbidding sowing grass seeds by duster in heavy rain or before heavy rain, the rainy day measure that properly protects, prevents domatic being washed away.
5, while sowing grass seeds by duster, jetting thickness will meet the demands, and in construction, checks at any time, while finding thickness low LCL, fills spray in time.
6, when domatic maintenance, adopt spray water to spray domatic, prevent from washing away domatic.
Side slope linked network provided by the invention has the following advantages:
Long anchor pole, short holdfast combination, both guaranteed anchor pole layout density, can save again engineering cost, can closely connect the binding site of adjacent wire gauze again, and the base material that the later stage sprays up can be retained for a long time.
1, ecological benefits are remarkable:
By the vegetation of sowing grass seeds by duster in rock slope, effectively contain that rainwater is to the washing away and soil erosion phenomenon of side slope, the near-earth microclimate of formation has improved the environment of speedway effectively, and can promote surrounding area to accelerate the greening of environment, beautify process.
2, economic benefit is high:
Under the identical condition of safeguard function, the cost of linked network is lower.
3, mechanization degree is high, speed of application is fast:
The needed plant equipment of linked network alien earth sparging is fairly simple, is mainly soil moved in to improve the original spraying equipment and grass-seed hydroseeding equipment.Side slope is protected by this technology, constructor's less investment, efficiency of construction is high.
4, long-lasting
The Zhi Sheng basic unit that uses soil conditioner and organic fiber material composition, is conducive to the long-term survival of plant and growth.Effectively improve former domatic soil property.By laying three dimensional network, the artificial numerous little ladder band of manufacturing has increased the area of applicable plant growth, recovers sustainably, step by step natural vegetation.
Accompanying drawing explanation
Fig. 1: side slope linked network flow chart.
The specific embodiment
Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.Embodiment 1: linked network Seed spraying technology
Certain quarry, the north, most gradients are at 70 °-80 °, the about 18m of vertical height left and right, be all rock slope, quarry is discarded for many years at present, and domatic rock is exposed, plant is without growth conditions, severe water and soil erosion, prevents erosion for beautifying the environment, and need carry out again green construction to this abandoned quarry.
According to the comprehensive analysis of the landform to abandoned quarry, geology and weather conditions and technology comparison in many ways, the natural conditions of this abandoned quarry meet the linked network ecosystem recovery requirement of sowing grass seeds by duster completely.
The net hanging method of rock slope, overall flow is planted raw matrix and vegetable seeds (see figure 1) for domatic, the linked network of cleaning, anchoring, spray attachment, and concrete operation method is as follows:
1, clear up domatic: adopt global blowup cut slope method, advance inwards about 8-12m along top, slope outward flange, form 60 ° stablize domatic;
2, linked network:
1. adopt galvanized wire mesh, specification is: 14#; Mesh: 5.0 × 5.0cm; Net wide: 200cm.
2. galvanized wire mesh is extended to 60cm to top top, slope, can be pressed under the catchwater of top, slope as degree, after fixing with long anchor pole, backfill.
3. after top, slope fixes, linked network from top to bottom, should strain net when laying, and between net and net, overlap distance is 10cm, with burning silk by firm its colligation; Wire side and domatic between keep about 3-4cm space.
3, anchoring:
Long anchor pole adopts the reinforcing bar of Φ 6mm, and " U " shaped steel rock-bolt length is 15.0cm." U " type anchor pole arranges by spacing 2.0m;
Short holdfast adopts the reinforcing bar of Φ 6mm, and " L " shaped steel rock-bolt length is 0.3m or 0.5m." L " type anchor pole arranges by spacing 0.5m;
Exceed the non-rock side slope of 2.0m for covering layer, adopt the T-shape timber that is about 1.0m or 1.2m to clench admittedly, every square metre is 10 timbers nails.
Replace long anchor pole at slope leveling, the available short holdfast in Rock Slide Stability place (being about 0.3m or 0.5m), spacing can suitably be adjusted into 1.0m.
At the danger stone place that can not remove in advance and the joint fissure quantity that long anchor pole should be suitably encrypted in growth place, around lay 1.0m left and right around danger stone or crack, make wire gauze and domatic fluctuating position veneer identical, and cannot move.
4, spray attachment is planted raw matrix and vegetable seeds: after lapping and anchoring construction complete, can carry out spray attachment and plant the construction of raw matrix and seed.
After embodiment 1 has sowed grass seeds by duster, through drip washing in rainy season then, find no the part matrix obscission of sowing grass seeds by duster, also do not occur be full of cracks, uniform surface is smooth.
Through a complete growth season, form stable vegetation on domatic and covered, do not find to sow grass seeds by duster matrix obscission.
Embodiment 2: linked network Seed spraying technology
Shaanxi expressway works side slope is that the Dumping Sites excavation that former local mining is left over forms, and first order ratio of slope is 1 × 0.75, and second level ratio of slope is 1 × 1, adopts linked network spraying and seeding afforesting.
Concrete operations flow process is as follows:
1, cleaning side slope
Easy landing, the rock that affects stability of slope are disposed, made the domatic smooth as far as possible linked network construction of sowing grass seeds by duster that is beneficial to, increase slope greening effect simultaneously; Add rough processing for smooth scar by excavating the measures such as traverse furrow, the domatic gradient is 65 °, in order to avoid soil moved in to improve the original glides.
2, linked network
1. adopt galvanized wire mesh, specification is: 14#; Mesh: 5.0cm × 5.0cm; Net wide: 200cm.
2. galvanized wire mesh is extended to 80cm to top top, slope, can be pressed under the catchwater of top, slope as degree, after fixing with holdfast, backfill.
3. after top, slope fixes, linked network from top to bottom, should strain net when laying, and between net and net, the distance of overlap joint is 15cm, with burning silk by firm its colligation; Wire side and domatic between keep about 3-4cm space, the wire gauze overlap joint of junction is 15cm.
3, anchoring:
In linked network construction or should beat the anchor pole Bower Anchor bar that Φ 6mm, length are 1.40m, interval 2m after linked network from top to bottom.
In linked network when construction, adopts and unreels from top to bottom, and the zinc-plated net of adjacent two volume is connected and fixed with tie wire respectively, and two net junctions require to have that 0.1m's is overlapping.
All the other places use short holdfast, are about 0.3m or 0.5m, and spacing is 0.5m.
To domatic out-of-flatness place, suitably squeeze into the wooden holdfast that long 0.2m ~ 0.3m does not wait, so that zinc-plated net is pressed close to is domatic.
4, after embodiment 2 has sowed grass seeds by duster, through drip washing in rainy season then, find that there is the matrix obscission of sowing grass seeds by duster in part, fill spray after the part that comes off being hammered into density to the 1 × 1m of anchor pole, respond well.Through a complete growth season, form stable vegetation on domatic and covered, do not find to sow grass seeds by duster matrix obscission.
From embodiment 1 and 2, guaranteeing, on the rational basis of the fixing engineering cost economic of anchor pole, can to realize the high-quality examination of engineering completely.
Although, above use general explanation, the specific embodiment and test, the present invention is described in detail, on basis of the present invention, can make some modifications or improvements it, and this will be apparent to those skilled in the art.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.

Claims (10)

1. a method for rock slope linked network, comprises the following steps: clears up domatic, linked network, anchoring, it is characterized in that, when anchoring, select long anchor pole, and interval 1m-2m, all the other positions are short holdfast, spacing is 0.5m-1m.
2. method according to claim 1, is characterized in that, long anchor pole uses with net lap-joint at net or network edge uses, and short holdfast is uniformly distributed between long anchor pole.
3. according to described in claim 1 or 2 when anchoring, use be holdfast or anchor pole, the reinforcing bar that is Φ 6mm is prefabricated, its long anchor pole is U-shaped, length is 0.6m-1.5m; Short holdfast is L-type, and long is 0.3m-0.6m.
4. method according to claim 1, is characterized in that, in linked network, wire side and domatic between distance be 3-4cm.
5. method according to claim 4, is characterized in that, described net is three-dimension vegetative net, adopts galvanized wire mesh, and specification is: 14#; Mesh: 5cm × 5cm; Net wide: 200cm.
6. method according to claim 1, is characterized in that, when described cleaning is domatic, the domatic gradient is 55-65 °.
7. method according to claim 1, is characterized in that, for the covering layer rock side slope of being altogether unjustifiable, as be greater than 2.0m, and adopting timber nail, density is every square metre and is no less than 8 timber nails, preferably the length of T-shape is the timber nail of 1.0m or 1.2m, every square metre of 10 timbers nail.
8. method according to claim 1, is characterized in that, to domatic out-of-flatness place, suitably squeezes into the short holdfast that long 0.2m-0.3m does not wait, so that zinc-plated net is pressed close to is domatic.
9. according to the method described in claim 1-8 any one, it is characterized in that, the method comprises the following steps:
1) clear up domatic: rock slope is formed to 55-65 ° domatic;
2) linked network: linked network from top to bottom, wire side and domatic between keep 3-4cm space, galvanized wire mesh is extended to 60-80cm to top top, slope, the distance overlapping between net and net is 10-15cm;
3) anchoring: in linked network construction or should beat long anchor pole from top to bottom after linked network, interval 1m-2m additionally arranges short holdfast simultaneously in the middle of adjacent long anchor pole; The short holdfast of " L " type arranges by spacing 50cm × 50cm, and long anchor pole will be across two nets in net oblique cut grafting place, make it be unified into an entirety.
10. the method described in claim 1-8 any one is applicable to decomposed rock, and the soil property that the soft rock that soil is fewer and soil hardness are high is domatic.
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CN105089065A (en) * 2015-08-20 2015-11-25 三峡大学 Method for improving reinforcement effect on habitat matrixes and preventing matrixes from splashing in ejecting planting process
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CN105089065A (en) * 2015-08-20 2015-11-25 三峡大学 Method for improving reinforcement effect on habitat matrixes and preventing matrixes from splashing in ejecting planting process
CN107100176A (en) * 2017-04-24 2017-08-29 浙江中景市政园林建设有限公司 A kind of expressway slope greening system
CN107100176B (en) * 2017-04-24 2019-01-29 浙江中景市政园林建设有限公司 A kind of expressway slope greening system
CN108049365A (en) * 2017-12-08 2018-05-18 奕铭(大连)科技发展有限公司 Hydraulic engineering protective slope net
CN108049366A (en) * 2017-12-08 2018-05-18 奕铭(大连)科技发展有限公司 Slope protection water conservancy net
CN108677975A (en) * 2018-07-26 2018-10-19 陕西绿盛园林建设有限公司 A kind of careless blanket slope protection construction method of three dimensional network combination environmental protection
CN108677976A (en) * 2018-07-26 2018-10-19 陕西绿盛园林建设有限公司 Galvanized wire mesh is combined without the careless blanket slope protection construction method of grass-seed environmental protection
CN109098189A (en) * 2018-08-02 2018-12-28 北京易成市政工程有限责任公司 Road slope landslide reinforcement construction method
CN109137941A (en) * 2018-10-13 2019-01-04 湖北安达泰建设工程有限公司 A kind of repairing and treating method in mine
CN110073768A (en) * 2019-04-03 2019-08-02 青海生源园林绿化工程有限公司 A kind of high altitude localities side slope Spray turfing construction method
CN111820081A (en) * 2019-04-15 2020-10-27 中交路桥建设有限公司 Slope net hanging spray-seeding quick greening construction method
CN110214634A (en) * 2019-05-31 2019-09-10 中建地下空间有限公司 A kind of construction method suitable for steep rock side slope TBS greening
CN110644495A (en) * 2019-09-24 2020-01-03 中天建设集团有限公司 Strip-drawing excavation construction method

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