CN104314087B - A kind of side-slope greening and protection structure and construction method thereof - Google Patents

A kind of side-slope greening and protection structure and construction method thereof Download PDF

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Publication number
CN104314087B
CN104314087B CN201410615698.8A CN201410615698A CN104314087B CN 104314087 B CN104314087 B CN 104314087B CN 201410615698 A CN201410615698 A CN 201410615698A CN 104314087 B CN104314087 B CN 104314087B
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China
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slope
plant
rib post
seeds
domatic
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CN201410615698.8A
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Chinese (zh)
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CN104314087A (en
Inventor
杨翔
阳长江
江真
张志飞
谢永辉
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重庆建工市政交通工程有限责任公司
重庆建工集团股份有限公司
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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
    • A01G2/00Vegetative propagation

Abstract

The invention discloses a kind of side-slope greening and protection structure, belong to ecological protection technology technical field.It includes according to stable side slope hard-wired form rack, described form rack includes longitudinally disposed rib post and the Bracket for steel bar of horizontally set, this rib post includes rib post reinforcing bar and the rib post concrete being ejected on reinforcing rib post, this rib post reinforcing bar is fixed on the described anchor pole exposed parts left and right sides by anchoring into the anchor pole of side slope, described Bracket for steel bar includes the holdfast anchoring into side slope and at least two elongated reinforcing bars being fixed on holdfast exposed parts, it is disposed with plant biological bag on described Bracket for steel bar, this plant biological bag is contained within planting raw substrate and shrub seeds, the raw base material of planting containing herbaceous plant seeds of sowing grass seeds by duster in the adjacent side slope of described plant biological bag is formed domatic, the rib post of described plant biological bag and both sides seals with domatic junction.Present invention also offers the corresponding construction method of this safeguard structure, be greatly shortened construction period, reduce the potential safety hazard of safeguard structure, improve protection effect.

Description

A kind of side-slope greening and protection structure and construction method thereof
Technical field
The invention belongs to ecological protection technology field, more specifically, be a kind of difference being applicable to be in steady statue Gradient slope of rock mass or the domatic slope vegetation protection structure of soil property and the concrete construction method of this structure.
Background technology
At present, highway in China builds fast development, and high-grade highway was built on a large scale in mountain area and hilly ground Cheng Zhong, inevitably excavates massif, thus forms exposed cut slope, and this has not only broken up massif vegetation, damages life State balances, and destroys local environment, and exposed side slope is the most easily by the erosion of wind and rain etc., causes soil erosion, jeopardizes The safety of traffic, its protection question becomes increasingly conspicuous.In practice of construction, often require that rock slope while protecting, Also need to carry out ecological recovery, in order to meet safe and reliable and economical rationality double goal, high slope Disease Characters is goed deep into Analyze and the careful selection of its harnessing project scheme is seemed particularly significant.
The scope being distributed along highway due to slope of highway is wide, big to the damage envelope of natural environment, and therefore we need to adopt With suitable greening means of defence, highway is made to have the features such as safe, comfortable, attractive in appearance, in accordance with natural environment.Tradition slope of rock mass Plant landscape method be to plant Hanging Plants on plant climber, top, slope of toe or on scar, dig planting groove or fish-scale pit plant Plant edge, Hanging Plants and flowering shrub etc. and realize greening.The some slope species technology of development in recent years, such as geotechnical grid grass planting Bulkhead tech and geotechnique's three-dimension vegetative net technology etc..These methods all also exist that speed of application is slow, maintenance is difficult, survival rate is low, The shortcomings such as the whole domatic required time length of vegetative coverage, green period are short.
As a example by geotechnical grid grass planting bulkhead tech, its prefabricated concrete sash is fixed on rock slope, in compartment Filling planting soil, then dispenses grass seeds and carries out slope greening, though the method can play certain ecological recovery effect, but there is also A certain degree of deficiency, as domatic uneven, Prefabricated Concrete sash material unbalance stress, local nodes stress cross Major disruptionL etc., And when the gradient is steeper, needing slots on domatic fixes sash, construction period is longer, potential safety hazard is bigger.
Summary of the invention
The long construction period existed for prior art, potential safety hazard is big, the vegetation green cycle is short deficiency, the present invention carries Supplied a kind of side-slope greening and protection structure, this structure can be greatly shortened construction period, reduce safeguard structure potential safety hazard with And improve vegetation green cycle and protection effect thereof.
For realizing above-mentioned technical purpose, the technical solution used in the present invention is as follows:
A kind of side-slope greening and protection structure, including relying on rock side slope or soil-slope hard-wired form rack, institute Stating and be provided with galvanized steel wire netting between form rack and side slope surface, described form rack includes longitudinally disposed rib post and laterally sets The Bracket for steel bar put, described rib post includes rib post reinforcing bar and the rib post concrete being ejected on rib post reinforcing bar, and described rib post reinforcing bar leads to Crossing and anchor into the anchor pole of side slope and be fixed on the described anchor pole exposed parts left and right sides, described Bracket for steel bar includes the holdfast anchoring into side slope And at least two elongated reinforcing bars being fixed on described holdfast exposed parts, on described Bracket for steel bar, interval is disposed with and plants life Bag, this plant biological bag is contained within planting raw substrate and shrub seeds, the adjacent side slope of described plant biological bag is sowed grass seeds by duster containing herbaceous plant seeds Raw base material of planting formed domatic, the rib post of described plant biological bag and both sides and domatic junction seal.
Use the side-slope greening and protection structure of technique scheme, utilize rib post and the reinforcing bar of horizontally set of vertical injection The plant biological bag laid on bracket is divided into multiple non-interfering format structure by domatic, and this structure can be made use of momentum with slope, with domatic Laminating is closely, it is possible to resolve plants raw base material and glides the most under gravity because of the gradient and because of the domatic uneven compartment node caused The problem such as rupture;On plant biological bag, point has a shrub seeds, domatic on sowed grass seeds by duster herbaceous plant seeds, owing to the root system of shrub seeds is sent out Reaching, tensile strength, take root scope and the degree of depth is all big than herbaceous plant, the herbaceous plant being combined with on domatic can make up solid Slope protection, forms stress and more reasonably protects entirety, can preferably retrain and plant raw base material, and grass fills and combines protection effect More preferably, green period is longer, can reach ecological recovery and the side slope protection mesh of optimum.
Include the materials such as rib post reinforcing bar and elongated reinforcing bar due to form rack, galvanized steel wire netting is set and can effectively prevent steel Material corrodes, thus ensures stablizing of total system.
Planting raw base material described in furthermore, it is understood that is divided into bottom and surface layer, described bottom to be pure to plant raw base material, and described surface layer is equal Even mixing herbaceous plant seeds.Layering is sowed grass seeds by duster not only, and beneficially bottom is pure plants raw base material and domatic condensation, is additionally favorable for surface layer draft Plant seed grows, if herbaceous plant seeds is distributed in plants raw base material bottom, will be unfavorable for that it grows.
Furthermore, it is understood that described underlayer thickness is 5-7cm, described surface thickness is 2-4cm.Plant raw base material the thinnest, it is difficult to Maintain the nutrition needed for herbaceous plant seeds long term growth, plant that raw base material is blocked up easily to be caused under collapses upon itself under gravity Sliding.
Furthermore, it is understood that the degree of depth that described anchor pole and holdfast anchor into rock side slope is 0.5 ~ 1m, anchor into the deep of soil-slope Degree is not less than 3.5m, and the anchor head crotch protruded length of described anchor pole is 5 ~ 8cm, the described a length of 15 ~ 25cm of holdfast exposed parts, And described anchor pole and holdfast anchor into the direction of side slope and should be close to side slope more than 15 ° with horizontal line angle.For rock matter and soil property limit For slope, anchor pole rationally anchor into the degree of depth and anchoring angle is conducive to the installation of rib post reinforcing bar, be also convenient for arranging Bracket for steel bar, protect Demonstrate,prove the steadiness of horizontal elongated reinforcing bar, facilitate laying of plant biological bag.
Furthermore, it is understood that described shrub seeds selects Herba Albiziae, Hemerocallis citrina Baroni Chinese scholartree and/or Robinia pseudoacacia L..Above-mentioned shrub seeds allows for Local climate feature selects, and Herba Albiziae, Hemerocallis citrina Baroni Chinese scholartree and Robinia pseudoacacia L. belong to shrub plant that is heat-resisting but that resist cold without consideration.
Present invention also offers the construction method of a kind of side-slope greening and protection structure, comprise the steps:
A, slope surface treatment: remove the drift on side slope surface, surface dust, Pumex and prominent rock, make domatic, the gradient meet Design requirement;
B, rockbolt installation:
B1, boring: first require punch position measurement and positioning according to design, utilize drilling machine to punch on domatic, bore Hole depth is more than more than rock-bolt length 50cm;
B2, clear hole: after pore-forming reaches design requirement, remove clean by the rock dust in hole, landwaste and sediment;
B3, grouting: in hole, anchor into anchor pole make hook protruded length outside anchor head be 5-8cm, then irrigate in hole and meet Design requires the mortar of proportioning, during perfusion, and record slip casting time, grouting amount and the spillage degree of depth;
C, rib post are constructed: according to slope height blanking rib post reinforcing bar, described rib post reinforcing bar is vertically fixed in anchor pole and exposes Part both sides, then on rib post reinforcing bar, point two-layer sprays rib post concrete continuously, and each jet thickness is 4-6cm;
Bracket for steel bar is constructed: the holdfast anchoring into lateral arrangement on domatic makes a length of 15 ~ 25cm of holdfast exposed parts, At described at least two elongated reinforcing bars of holdfast exposed parts colligation;
D, the installation of plant biological bag: reasonable disposition is planted raw substrate and is weighed into plant biological bag, be spaced and be placed to reinforcing bar torr On frame, in plant biological bag, then click and enter shrub seeds;
Raw base material is planted in injection: spray seeder sent into by the raw base material of planting after reasonable disposition being stirred, and adds water to domatic at gun slot Sowing grass seeds by duster, sow grass seeds by duster time-division bottom and surface layer is sowed grass seeds by duster for twice, bottom is pure to plant raw base material, and surface layer uniformly mixes described herbaceous plant kind Son;
E, covering non-woven fabrics: plant after raw base material sowed grass seeds by duster 24 hours, raw substrate surface is fixing covers non-woven fabrics planting;
F, maintenance molding: according to weather condition, carry out reasonable water seasoning to planting raw base material, until molding.
Furthermore, it is understood that in described step B3, first with thin cement slurry lubrication grouting pump and pipe before grouting, use pressure during grouting Power grouting pump is irrigated, and Grouting Pipe is inserted at the bottom of hole, slowly transfers to Grouting Pipe with perfusion limit, grouting pressure limit, until slurry is returned in aperture Till, after filling, supplementary irrigation cement mortar after mortar solidification shrinkage.
Furthermore, it is understood that in described step D, plant before raw base material sows grass seeds by duster, first moistening to the domatic water spray that carries out, keep when sowing grass seeds by duster Gun slot vertical is down sowed grass seeds by duster from domatic top with domatic, and gun slot blast 4500~5500 Pa ensures that described bottom sprays simultaneously Broadcasting thickness is 5-7cm, and surface layer thickness of sowing grass seeds by duster is 2-4cm.
Furthermore, it is understood that in described step F, until herbaceous plant seeds emerge grow to 5~6 cm or 2~3 leaves time, take off Non-woven fabrics, after emerging one month, imposes compound fertilizer, after growing to 30~40cm, suitably reduces irrigation times.
The present invention compared to existing technology, has the advantages that
1, technological operation is simple, and mechanization degree is high, and speed of application is fast, short construction period.
2, the format structure that the plant biological bag laid on the vertical rib post of injection and the Bracket for steel bar of horizontally set is constituted is utilized Can make use of momentum with slope, fit tightly with domatic, it is possible to resolve what the gradient caused greatly plant, and raw base material glides and domatic uneven causes Compartment node the problem such as rupture, whole safeguard structure system is sufficiently stable.
3, the shrub seeds well developed root system in plant biological bag, tensile strength, takes root scope and the degree of depth is all big than herbaceous plant, slope Herbaceous plant seeds on face produces molding and greening speed is faster than shrub seeds, and both cooperate and form the domatic anti-of solid Protect, form stress and more reasonably protect entirety, can preferably retrain and plant raw base material and side slope is protected.
Accompanying drawing explanation
Fig. 1 is rib post reinforcing bar and the front side mounting structure schematic diagram of anchor pole (apleuria post concrete and Bracket for steel bar);
Fig. 2 is that structure shown in Fig. 1 jetted the side of rib post concrete and cuts open structural representation;
Fig. 3 is the Facad structure schematic diagram of side-slope greening and protection structure;
Fig. 4 is that shown in Fig. 3, structural representation is cutd open in the side of side-slope greening and protection structure;
Fig. 5 is Bracket for steel bar and plant biological bag mounting structure schematic diagram on rock side slope;
Fig. 6 is the sectional structure chart that raw base material is planted in domatic layering injection;
Fig. 7 is the construction process figure of side-slope greening and protection structure.
Detailed description of the invention
In order to make those skilled in the art that the present invention be may be better understood, below in conjunction with the accompanying drawings with embodiment to this Bright technical scheme further illustrates.
As Figure 1-5, a kind of side-slope greening and protection structure, it is adaptable to be in the rock matter limit of the different gradient of steady statue Slope or the slope vegetation protection of soil-slope, side slope top is soil-slope 1, and side slope bottom is rock side slope 2, and side slope here is concrete Consider that domatic top layer is soil property or rock matter for any, between soil-slope 1 and rock side slope 2, form a platform, described Safeguard structure includes being respectively and fixedly installed to the galvanized steel wire netting 63 on rock side slope 1 and soil-slope 2 and form rack, wherein Galvanized steel wire netting 63 is between form rack and side slope surface, and form rack all includes longitudinally disposed rib post 3, such as Fig. 1 Shown in, described rib post 3 includes rib post reinforcing bar 31 and the rib post concrete 32(C25 being ejected on rib post reinforcing bar 31), described rib post steel Muscle 31 is fixed by anchor pole 33, and anchor pole 33 one end here anchors into side slope, the exposed parts left and right sides, one end fixing rib post reinforcing bar 31, wherein said anchor pole 33 is along the most domatic fixing every 2 meters of punchings.
As shown in Fig. 3, Fig. 5, form rack also includes that the Bracket for steel bar 4 of horizontally set, described Bracket for steel bar 4 include anchoring into The holdfast 41 of side slope and the two elongated reinforcing bars 42 being fixed on holdfast 41 exposed parts, wherein holdfast 41 is pressed between Ф 16@500 Every setting, described Bracket for steel bar 4 being spaced apart plant biological bag 5 every 2 meters, what this plant biological bag 5 was contained within having configured plants raw substrate And the shrub seeds clicked and entered, the raw base material 6 of planting containing herbaceous plant seeds that side slope is sowed grass seeds by duster is formed domatic, waits to plant raw base material 6 After solidification, the rib post 3 of plant biological bag 5 and both sides can and domatic between formed and seal the outer compartment sluiced, such be in well When surface water on domatic flows downward, because of the stop by plant biological bag 5, domatic runoff receives stop, reduces greatly The flow velocity of current, it is to avoid rainwater accelerates radially to wash away domatic brought unstability, if not by planting through clearance The clearance (because the out-of-flatness of side slope own) between plant biological bag 5 and side slope filled up by raw base material, then the rainwater on domatic will not Stopped and directly through clearance along domatic toward dirty, rainwater is more toward dirty, and its speed is continuously increased, to slope stability Affect the biggest.
For avoiding the influence on groundwater under rock matter or soil-slope to the stability of side slope, spilled water hole 7 can be set up, bury Enter flexible porous tube and carry out draining.
Raw substrate of planting in plant biological bag 5 is mainly made up of planting soil, compound fertilizer, water-retaining agent and fertilizer, Shrub Species daughter root Select according to side slope location climatic characteristic, if northern, then need to consider whether shrub resists cold, if south, then Needing to consider that shrub is the most heat-resisting, as a example by Chongqing region, summer temperature reaches as high as more than 40 °, and winter, minimum temperature was difficult to Less than 0 °, therefore the selection of plant mainly considers that it is the most heat-resisting, and requirement the most cold-resistant to plant is the highest, considers choosing The shrub seedses such as Herba Albiziae, Hemerocallis citrina Baroni Chinese scholartree and Robinia pseudoacacia L. are selected.
The raw base material of planting of side slope injection is mainly tied agent, slow-release fertilizer, water conservation by organic matter, bio-bacterial manure, thickness fiber, patch Agent, disinfectant, planting the component such as loam and water composition, this is also that the basis of raw base material planted by the bank protection sold on market, can be straight Connect commercially.As shown in Figure 6, plant raw base material and sow grass seeds by duster in time-division two-layer of sowing grass seeds by duster, thus form bottom 61 and surface layer 62 is tied Structure, wherein bottom 61 plants raw base material for pure, and surface layer 62 is uniformly mixed with herbaceous plant seeds, and layering is sowed grass seeds by duster and is not only advantageous to bottom Plant the rapid solidification of raw base material in 61, also help the fast-growth of surface layer herbaceous plant seeds.When being embodied as, 31 bottom sprays Broadcasting THICKNESS CONTROL at 5-7cm, surface layer sows grass seeds by duster THICKNESS CONTROL at 2-4cm.
Anchor pole 33 and holdfast 41 are in quincuncial arrangement, and it anchors into the severity control of rock side slope 2 at 0.5 ~ 1m, anchors into soil property The degree of depth of side slope 1 is not less than 3.5m, owing to rock side slope 2 is better than soil-slope 1 fixed effect, anchors into the deep of rock side slope 2 Degree can be too deep, and for soil-slope 1, if the lithosphere below soil is shallower, anchor pole 33 and holdfast 41 anchor into Rock part, if the lithosphere below soil is relatively deep, then need not anchor into lithosphere part, it is only necessary to anchor pole 33 and anchor Nail 41 only leans on the frictional force of soil also can pin anchor pole 33 and holdfast 41, the anchor head of described anchor pole 33 after anchoring into certain depth Crotch protruded length controls at 5 ~ 8cm, facilitates fixing rib post reinforcing bar 31, and holdfast 41 exposed parts is a length of to be controlled at 15 ~ 25cm, Facilitate the elongated reinforcing bar of colligation 42 and place a certain size plant biological bag 5, for guaranteeing that the shrub seeds of plant biological bag 5 can stably be given birth to Long, anchor pole 33 and holdfast 41 anchor into the direction of side slope should be close to side slope more than 15 ° with horizontal angle, is preferred with 15 ° ~ 20 ° (be too against side slope and be unfavorable for the growth of shrub seeds), such plant biological bag 5 is slightly tilted inward when placing, it is to avoid it is from reinforcing bar Tumble on bracket 4.
When side slope planting plants, it is substantially the mode using sowing, but owing to shrub seeds is emerged and the life of seedling Growth process is much slower than herbaceous plant seeds, and the herbaceous plant causing shrub seeds to be grown up in growth early stage swallows, and causes Fruticeta builds unsuccessfully.For avoiding this kind of situation to occur, on plant biological bag, put shrub seeds, grass of sowing grass seeds by duster on domatic respectively After this plant seed, owing to herbal growth substitutes very fast, can first build green plants, and shrub seeds is planted at draft Thing constantly grows and slowly grows growth in death process, forms shrub layer the most smoothly.Due to the well developed root system of shrub seeds, Tensile strength, taking root scope and the degree of depth is all big than herbaceous plant, its root system extends to domatic, and coordinates the draft on domatic Plant preferably retrains the raw base material of planting on domatic, forms stress and more reasonably protects entirety.
As it is shown in fig. 7, for above-mentioned safeguard structure, present invention also provides its concrete construction method, comprise the steps:
S10, slope surface treatment: construct from top to bottom, the artificial removing drift on side slope surface, surface dust and Pumex, for Prominent rock, uses mechanical bond hand fit's pneumatic pick to reject, and makes the most smooth domatic, the gradient satisfied design requirement.
For more smooth domatic, the domatic rough process that adds to be carried out by measures such as excavation lateral trench, dabbing are domatic, Lateral trench should be tilted to slope.Counter-slope to be prevented during clear slope, domatic indent part should use celluar concrete to mend and fill out.
After slope surface treatment is complete, layer overlay galvanized steel wire netting in side slope, it is prevented effectively from corrosion of steel, it is ensured that greening side slope The stability of safeguard structure.
S20, rockbolt installation:
Before rockbolt installation, first carrying out setting up of operating platform, concrete points for attention are as follows:
1. first the stable case of existing side slope must be observed before scaffold building, after determining safety, set up foot hands again Frame.
2. bracket upright post should be placed on the rock of hard and steady, must not be placed on scum silica frost;Scaffold building should meet construction Operation requirement;Security guardrail is set to tackle emergent situation.
3. setting up pipe thread to want firmly and stable, necessary wedging between steelframe and side slope, it is firm to connect between adjacent steelframe, To guarantee construction safety.
4., after scaffold building completes, should need on scaffold, arrange bamboo springboard and cat ladder, and bamboo springboard according to construction Tie up extremely with cat ladder application iron wire, to ensure the construction safety of personnel and facility.
After operating platform has been set up, carrying out the installation of anchor pole, concrete installation process is divided into following several step:
S21, boring: first require punch position measurement and positioning according to design, utilize drilling machine to punch in side slope, beat The degree of depth that the degree of depth in hole anchors into holdfast with anchor pole is relevant, and in general, drilling depth anchors into more preferably greater than anchor pole or holdfast deeply Degree more than 50cm.And selection that anchor pole anchors into the degree of depth with holdfast is relevant to side slope character, if side slope is rock side slope, anchor pole and The degree of depth that holdfast anchors into is preferable with 0.5 ~ 1m, if side slope is soil-slope, the degree of depth that anchor pole and holdfast anchor into is preferably not below 3.5m, the concrete degree of depth to determine according to the rock matter layer depth below soil property, if rock matter layer is shallower, anchor pole and the best anchor of holdfast Enter to rock matter layer, if rock matter layer is relatively deep, for avoiding the waste on material, the anchor pole grown very much and holdfast need not be selected to anchor into relatively At deep rock matter layer, therefore have only to control in the range of 4 ~ 5m anchor pole and holdfast extreme length, accordingly even when anchor pole Do not anchor into rock matter layer with holdfast, it can also pin anchor pole and holdfast by the frictional force of soil.
For guaranteeing stablizing of plant biological bag, the direction that pierces of boring is close to side slope more than 15 ° with horizontal line angle, so treats anchor Bar and holdfast can ensure that consolidating of transverse steel bracket and laying smoothly of plant biological bag after installing, it is to avoid it is from Bracket for steel bar On tumble.
If spilled water hole to be designed in side slope, then this spilled water hole should according to design 6% leak slope requirement boring, and Imbed flexible porous tube in time.
S22, clear hole: pore-forming reach design require the degree of depth after, use the clear hole of air, by the rock dust in hole, landwaste and Sediment is removed clean, dries up hole wall, in order to during installation, rock and mortar have bonds well.
S23, grouting are first according to design requirement before fixing, and carry out dispensing and the making of required bar material, treat that clear hole is complete Cheng Hou, puts into anchor pole in time, and for convenience of later stage fixing rib post reinforcing bar, the anchor head crotch protruded length of anchor pole controls at 5 ~ 8cm.
Concrete filling process is as follows:
1. requiring configuration grouting serosity according to design, serosity should stir, with mix with, and serosity should be before initial set It is finished.
2. first with thin cement slurry lubrication grouting pump and pipe before cementing operations, slip casing by pressure pump is then used to be irrigated, with Preventing stone, foreign material to be mixed into, during perfusion, Grouting Pipe is irrigated at the bottom of inserting hole, slowly transfers to slip casting with perfusion limit, grouting pressure limit Pipe, till slurry is returned in aperture, after filling, supplementary irrigation serosity after mortar solidification shrinkage.
When 3. irrigating, record slip casting time, grouting amount and the spillage degree of depth, to check pouring quality.
Note during grouting following some:
Notice during grouting that the mouth of pipe should be under slurry face all the time, when going out aperture etc. orrhorrhea, all transfer to Grouting Pipe.In case of split The through leakage of gap, employing adds accelerator or gradation slip casting method solves.
For rock crushing, cranny development, spillage special macropore position, use and be interrupted slip casting, first insert anchor pole or holdfast, then Mend and starch till overfilling, after mortar solidification shrinkage, carry out after-teeming by coordination in works allotment cement mortar.
The performance test of anchor pole or holdfast should be carried out before large-area construction, check its parameter the most consistent with design, Check and accept quantity and take the 5% of installation sum, and must not be less than 3.
If slip casting starts or midway stopped more than 30 minutes, application water or thin cement slurry lubrication grouting pump and pipeline.
S30, rib post are constructed with Bracket for steel bar
S31, rib post are constructed: according to slope height, employing Φ 12 spiral is as rib post reinforcing bar, by described rib post reinforcing bar Vertical expose crotch through anchor pole, and with No. 14 thin wires, rib post reinforcing bar fixed colligation anchor pole exposed parts both sides, rib post reinforcing bar Distance side slope granule surface contral is no less than 35d in 5 ~ 8cm, the lap of splice;After rib post reinforcement construction, rib post reinforcing bar divides Layer injection C25 rib post concrete, each jet thickness is 4-6cm, is embodied as the injection of time-division upper and lower two-layer, and every layer of jet thickness is about 5cm, and before lower floor's presetting period, completed upper strata injection.
S32, Bracket for steel bar are constructed: anchoring into Ф 16 holdfast being arranged laterally at a spacing on slope rock mass, spacing distance is 50cm, the installation process of holdfast is roughly the same with anchor pole, for convenience of the elongated reinforcing bar of later stage colligation and receiving plant biological bag, outside holdfast Dew partial-length is for controlling at 15 ~ 25cm, at 2 elongated reinforcing bars of Ф 12 of holdfast exposed parts colligation.
S40, the installation of plant biological bag: reasonable disposition plants raw substrate, described in plant raw substrate and include planting soil, compound fertilizer, water conservation Agent and fertilizer, be spaced (2 meters) by crane after pack of weighing and be placed on Bracket for steel bar, then clicked and entered in plant biological bag The shrub seedses such as Herba Albiziae, Hemerocallis citrina Baroni Chinese scholartree, Robinia pseudoacacia L., spacing is 1 meter.
Raw base material is planted in injection: planting raw base material is that seed growth is grown, and the body of root system development, mainly by organic, biological Bacterial manure, thickness fiber, patch knot agent, slow-release fertilizer, water-retaining agent, disinfectant, plant loam and water composition.Each component in proportion (specifically than Example can determine according to locally collected meteorology, the hydrology and Ecological Data) it is stirred after proportioning, mixing time 2min is advisable, and joins Sending into spray seeder after having put, add water at gun slot and sow grass seeds by duster to side slope, sow grass seeds by duster time-division bottom and surface layer is sowed grass seeds by duster for twice, bottom is pure Planting raw base material, surface layer uniformly mixes described herbaceous plant seeds.
Before sowing grass seeds by duster, first should moisten at side slope surface sprinkling, preferably be combined, in order to planting raw base material, the slope that formation is new with side slope Face.Spray gun is tried one's best vertical with by spray plane, it is to avoid face upward spray, notices that dead angle part and convexconcave part to spray full.Strict control spray gun wind Amount, blast, it is ensured that muzzle blast 4500~5500 Pa, when sowing grass seeds by duster preferably from side slope top down, width control system of sowing grass seeds by duster is left at 4m Right.
Thickness of sowing grass seeds by duster should determine according to factors such as the gradient of side slope, slope are high, and the steepest domatic of slope Gao Yue great, the gradient is sowed grass seeds by duster more Thick (should not be the thickest, blocked up easily cause collapses upon itself to glide under gravity).
Spray bottom: planting raw base material, fully to mix water spray thoroughly moistening, with hands pinch agglomerating unclamp i.e. to dissipate be as the criterion.With sowing grass seeds by duster, machinery will Planting raw base material to be sprayed onto in side slope, THICKNESS CONTROL of sowing grass seeds by duster is at 5 ~ 7cm.
Spray plane layer: first will plant raw base material and herbaceous plant seeds mix homogeneously, surface layer of in good time sowing grass seeds by duster after bottom is stable.Plant Raw base material, herbaceous plant seeds and water are sprayed to side slope in the mixing of spray seeder nozzle, and THICKNESS CONTROL of sowing grass seeds by duster is at 2 ~ 4cm.Sow grass seeds by duster Time grasp water consumption, make the mixture adhesion side slope planting raw base material substrate and herbaceous plant seeds not move and do not fall off.
S50, covering non-woven fabrics: plant after raw base material sowed grass seeds by duster 24 hours, raw substrate surface is fixing covers non-woven fabrics planting (16g~18g/m2), before covering non-woven fabrics, reply is planted raw base material and is once watered, and makes to plant raw base material moisture sufficient.Planting Raw substrate surface covers non-woven fabrics can effectively reduce the evaporation of base material moisture, prevents rain drop erosion, and beneficially grass seeds germinates.
Being fixed at upper and lower for non-woven fabrics two ends at top, slope and toe, the left and right sides is by being definitely fixed at substrate surface. Must not guarantee during non-textile mulch and have large-area hollowing, to prevent wind.
S60, maintenance molding: according to weather condition, carry out reasonable water seasoning to planting raw base material, until molding.
Specifically comprise the following steps that
1. planting after raw base material is sowed grass seeds by duster and carry out water seasoning according to weather condition, to promote that herbaceous plant seeds germinates, water should Raw base material is planted in spray thoroughly, waters and is preferred with the water droplet of atomization, and never flood washes away.
2. after emerging, water and should carry out sooner or later, when grass Seedling grows to 5~6 cm or 2~3 leaves, take non-woven fabrics off, go out After Seedling 1 month, suitably impose compound fertilizer, should after the rain during fertilising, in order to avoid rainwater washes away fertilizer.
3., after plant growing to 30~40cm, irrigation times can suitably reduce, according to weather condition, and pouring 2 times weekly It is advisable, during weather arid, irrigation times can be increased.
4. after maintenance 3 months, irrigation times can be reduced, rely on natural rainfall maintenance voluntarily, if but weather the most persistently do Drought then should suitably give water seasoning, in curing period, notes the preventing and treating of pest and disease damage.
A kind of rock side slope plant protection structure and the construction method thereof that there is provided the present invention above are described in detail. The explanation of specific embodiment is only intended to help to understand method and the core concept thereof of the present invention.It should be pointed out that, for this technology For the those of ordinary skill in field, under the premise without departing from the principles of the invention, it is also possible to the present invention is carried out some improvement And modification, these improve and modify in the protection domain also falling into the claims in the present invention.

Claims (9)

1. a side-slope greening and protection structure, it is characterised in that include relying on rock side slope or the hard-wired lattice of soil-slope Formula rack, is provided with galvanized steel wire netting between described form rack and side slope surface, described form rack includes longitudinally disposed rib Post and the Bracket for steel bar of horizontally set, described rib post includes rib post reinforcing bar and the rib post concrete being ejected on rib post reinforcing bar, described Rib post reinforcing bar is fixed on the described anchor pole exposed parts left and right sides by anchoring into the anchor pole of side slope, and described Bracket for steel bar includes anchoring into The holdfast of side slope and at least two elongated reinforcing bars being fixed on described holdfast exposed parts, described Bracket for steel bar is spaced cloth Being equipped with plant biological bag, this plant biological bag is contained within planting raw substrate and shrub seeds, and the adjacent side slope of described plant biological bag is sowed grass seeds by duster containing draft The raw base material of planting of plant seed is formed domatic, and the rib post of described plant biological bag and both sides seals with domatic junction.
Side-slope greening and protection structure the most according to claim 1, it is characterised in that described in plant raw base material and be divided into bottom dough-making powder Layer, described bottom is pure to plant raw base material, and described surface layer uniformly mixes described herbaceous plant seeds.
Side-slope greening and protection structure the most according to claim 2, it is characterised in that described underlayer thickness is 5-7cm, described Surface thickness is 2-4cm.
4. according to the side-slope greening and protection structure described in any one of claim 1-3, it is characterised in that described anchor pole and holdfast anchor The degree of depth entering rock side slope is 0.5 ~ 1m, and the degree of depth anchoring into soil-slope is not less than 3.5m, and the anchor head crotch of described anchor pole exposes A length of 5 ~ 8cm, the described a length of 15 ~ 25cm of holdfast exposed parts, and described anchor pole and holdfast anchor into direction and the water of side slope Horizontal line angle should be close to side slope more than 15 °.
Side-slope greening and protection structure the most according to claim 4, it is characterised in that described shrub seeds selects Herba Albiziae, Huang Flower Chinese scholartree and/or Robinia pseudoacacia L..
6. the construction method of a side-slope greening and protection structure according to claim 1, it is characterised in that include walking as follows Rapid:
A, slope surface treatment: remove the drift on side slope surface, surface dust, Pumex and prominent rock, make domatic, the gradient meet design Requirement;
B, rockbolt installation:
B1, boring: first require punch position measurement and positioning according to design, utilize drilling machine to punch on domatic, boring is deep Degree is more than more than rock-bolt length 50cm;
B2, clear hole: after pore-forming reaches design requirement, remove clean by the rock dust in hole, landwaste and sediment;
B3, grouting: anchor into anchor pole in hole and make hook protruded length outside anchor head be 5-8cm, then in hole, perfusion meets design Require the serosity of proportioning, during perfusion, record slip casting time, grouting amount and the spillage degree of depth;
C, rib post are constructed: according to slope height blanking rib post reinforcing bar, described rib post reinforcing bar is vertically fixed in anchor pole exposed parts Both sides, then on rib post reinforcing bar, point two-layer sprays rib post concrete continuously, and each jet thickness is 4-6cm;
Bracket for steel bar is constructed: the holdfast anchoring into lateral arrangement on domatic makes a length of 15 ~ 25cm of holdfast exposed parts, in institute State at least two elongated reinforcing bars of holdfast exposed parts colligation;
D, the installation of plant biological bag: reasonable disposition is planted raw substrate and is weighed into plant biological bag, be spaced and be placed on Bracket for steel bar, Then in plant biological bag, click and enter shrub seeds;
Raw base material is planted in injection: spray seeder sent into by the raw base material of planting after reasonable disposition being stirred, and adds water at gun slot and sows grass seeds by duster to domatic, Sowing grass seeds by duster time-division bottom and surface layer is sowed grass seeds by duster for twice, bottom is pure to plant raw base material, and surface layer is uniformly mixed with herbaceous plant seeds;
E, covering non-woven fabrics: plant after raw base material sowed grass seeds by duster 24 hours, raw substrate surface is fixing covers non-woven fabrics planting;
F, maintenance molding: according to weather condition, carry out reasonable water seasoning to planting raw base material, until molding.
The construction method of side-slope greening and protection structure the most according to claim 6, it is characterised in that in described step B3, First with thin cement slurry liquid lubrication grouting pump and pipe before grouting, using slip casing by pressure pump to be irrigated during grouting, Grouting Pipe inserts hole The end, slowly transfer to Grouting Pipe with perfusion limit, grouting pressure limit, till slurry is returned in aperture, after filling, after mortar solidification shrinkage Supplementary irrigation serosity.
The construction method of side-slope greening and protection structure the most according to claim 6, it is characterised in that in described step D, plant Before raw base material is sowed grass seeds by duster, first moistening to the domatic water spray that carries out, keep gun slot vertical down to spray from domatic top with domatic when sowing grass seeds by duster Broadcasting, gun slot blast 4500~5500 Pa, ensure that described bottom thickness of sowing grass seeds by duster is 5-7cm simultaneously, surface layer thickness of sowing grass seeds by duster is 2- 4cm。
9. according to the construction method of the side-slope greening and protection structure described in any one of claim 6-8, it is characterised in that described step In rapid F, until herbaceous plant seeds emerge grow to 5~6 cm or 2~3 leaves time, take non-woven fabrics off, after emerging one month, impose Compound fertilizer, after growing to 30~40cm, suitably reduces irrigation times.
CN201410615698.8A 2014-11-05 2014-11-05 A kind of side-slope greening and protection structure and construction method thereof CN104314087B (en)

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