CN109750682A - The hard and soft combination combined type ecological slope protection construction method of foam concrete roadbed side slope - Google Patents
The hard and soft combination combined type ecological slope protection construction method of foam concrete roadbed side slope Download PDFInfo
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- CN109750682A CN109750682A CN201910212607.9A CN201910212607A CN109750682A CN 109750682 A CN109750682 A CN 109750682A CN 201910212607 A CN201910212607 A CN 201910212607A CN 109750682 A CN109750682 A CN 109750682A
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Abstract
The present invention relates to a kind of hard and soft combination combined type ecological slope protection construction method of foam concrete roadbed side slope, main construction procedure includes: Extended chemotherapy construction, first layer foam concrete pours, first layer backfills earthen backfill, the vertical slope protection of construction in layer, upper ramps slope protection construction.The planting block of the vertical vertical drawknot of slope protection position arranged for interval of the present invention forms rigid protection, grass planting bag built in layered arrangement and the geonet of backfill form flexible protective, slope slope protection position is laid with careless blanket outside geonet simultaneously, forms planting block+grass planting bag+grass blanket complex ecological system.Construction method of the present invention, overcome that space occupied existing for traditional roadbed side slope bulkhead tech is big, the construction period is long, easily-deformable, surface soil is easy to run off, side slope is easily collapsed the problems such as sliding, it is fast with speed of application, have a safety feature, slope protection system bearing capacity is big and stability is strong, economic technology and environmental benefit are significant.
Description
Technical field
The present invention relates to a kind of constructions of high steep hard and soft combination combined type ecological slope protection system of foam concrete roadbed side slope
Method belongs to slope protection project field, is suitable for roadbed side slope ecological protective measures, is particularly suitable for high steep foam concrete
Roadbed side slope ecological protective measures.
Background technique
Because foam concrete has, quality is light, independence is good, construction is fast, anti-seismic performance is good, sound-insulating and heat-insulating effect is good, resistance to
Fire and the good feature of waterproof performance, are particularly suitable for that height is high, the gradient is steep, substrate is that soft base, embankment land used range be small, work
The highway engineering subgrade of phase anxiety is constructed.However in the side-slope greening and protection of high steep foam concrete roadbed, but exist as follows
Difficult point: first, due to, without plant growing condition, needing soil moved in improve the original in greening at roadbed side slope；Second, due to roadbed height
Generally in 30m or more, while embankment land used range is small, therefore is not available the counterfort virescence form of slope；Third, for upright
The foam concrete roadbed poured, green side slope are easier that landslide and slope surface soil erosion occurs；Fourth, in view of selecting bubble
Foam concrete is generally more nervous as the duration of a project of roadbed material, therefore it is required that have certain construction convenient for guard system
Property and high efficiency.Traditional grass planting bag bulkhead tech, the general slope protection form using slope and occupy more embankment with air-ground
Between, while the construction period is longer；In addition, it is not good enough with the drawknot intensity of roadbed, easily deform under external force；In addition,
Slope surface coombe also occurs easily under rain drop erosion for grass planting bag slope protection, surface soil is lost, collapse the Slope hazards such as sliding, leads to a large amount of side slope
Disease Treatment, recovery project.
Therefore, in order to effectively solve the above problems, a kind of small space occupied, reliable in quality, quick construction, time saving province are researched and developed
The good slope protection system of power, water conservation soil conservation performance is even more important, and made of the present invention exactly develops in this context, is applied to
Apparent economic benefit and social benefit will be generated in practical high steep foam concrete subgrade construction.
Summary of the invention
It is an object of the invention to for space occupied is big, the construction period is long, easy existing for traditional grass planting bag bulkhead tech
The problems such as sliding and repair rate of doing over again that deformation, surface soil are easy to run off, side slope is easily collapsed is high, proposes a kind of high steep foam concrete roadbed side
The construction method of the hard and soft combination combined type ecological slope protection system in slope, the slope protection system use the combined type protective slope structure of " rigid+soft ",
After the completion of Extended chemotherapy construction, construction in layer roadbed and its protective slope structure overlay geonet according to this, installation non-dismantling formwork, pour
Build the road base, fill backfill, build grass-planting brick, anti-package geonet, further circulation construction until subgrade construction finish, finally exist
Slope slope protection position is laid with careless blanket and implements greening construction.
In order to achieve the above technical purposes, the invention adopts the following technical scheme.
The hard and soft combination combined type ecological slope protection system of high steep foam concrete roadbed side slope, it is characterised in that: it includes planting
Careless building block, stem, non-dismantling formwork, geonet, steel pipe, drawknot screw, wirerope, Extended chemotherapy；The planting block is thin
Vertical fill orifice, front setting planting groove is arranged in wall formwork structure, the back side；It is successively built from below to up on the Extended chemotherapy
Planting block is built, reinforcing rib and casting concrete are configured in the hole up and down formed by vertical fill orifice, is formed and is reinforced
Stem；The geonet both ends are cast in foam concrete roadbed, inside fill backfill, and on the outside of side slope
Stack grass planting bag；Described drawknot screw one end is twisted and is fixed in threaded sleeve, and the other end is fixed on planting block；The steel
Cord one ends wound is fixed in stop collar, and other end drawknot is on pull ring.
The planting block is reserved or is drilled with screw hole.
Tongue and groove is arranged in the non-dismantling formwork upper and lower side, and pull ring and preformed hole is arranged in back.
Stop collar and threaded sleeve are set on the steel pipe.
The hard and soft combination combined type ecological slope protection construction method of foam concrete roadbed side slope, it is characterised in that including following step
It is rapid:
S1: according to design requirement surveying and locating, non-dismantling formwork, planting block and the steel pipe position line are marked, and in foam coagulation
Native shoulder uniformly plugs steel pipe；
S2: building position in planting block and excavate groove, and groove dimensions are more bigger than planting block bed-plate dimension, and configuration adds in groove
Strengthening tendons and casting concrete formation Extended chemotherapy；
S3: before non-dismantling formwork installation, geonet is layered on designated position in advance, guarantees that geonet one end is routed to foam concrete road
In base；Then in non-dismantling formwork installation site drape layer cement mortar, non-dismantling formwork is snapped to build on geonet and is fixed, and
Through steel wire rope drawknot on steel pipe；Secondly drawknot screw one end is passed through into the preformed hole on non-dismantling formwork, screwed on steel pipe
Threaded sleeve in, non-dismantling formwork in be onstructed section starts to pour foam concrete after all installation is fixed；
S4: building the first skin planting block on Extended chemotherapy, and grass planting bag is being stacked on the outside of side slope；By what is laid in advance
Geonet other end anti-package is simultaneously placed on grass planting bag；After the first skin planting block and grass planting bag have been constructed, on geonet
Fill one layer of backfill；It anti-package is placed on geotechnological net unfolding on grass planting bag is laid on and backfilled backfill and poured
On foam concrete；
S5: repeating S3 ~ S4, until reaching design height, while 2 ~ 3 skin planting blocks of every construction, i.e., fills into vertical fill orifice
Infuse pea gravel concreten；
S6: it after the completion of vertical component slope protection construction, with reference to S3 and S4, carries out foam concrete placement layer by layer and back-filling in layers soil is applied
Work；After roadbed has all filled, it is laid with one layer of levelling soil layer on the slope, be laid with careless blanket and slope is fixed on by tether
On；
S7: after formula ecological slope protection system to be composite has all been constructed, planting soil and green plant are inserted in the planting groove of planting block
Or grass seeds, and conserve in time.
The invention has the characteristics that and the utility model has the advantages that
(1) planting block of the vertical drawknot of arranged for interval forms rigid protection, and layered arrangement stacks the soil of grass planting bag and backfill
Work net forms flexible protective, forms the combined type slope protection system of " rigid+soft ".Single rigid slope protection is compared, concrete has been saved
The consuming of equal materials；Single flexible slope protection is compared, the stability of slope protection system is substantially increased.The combined type slope protection system of construction
Uniting, bearing capacity is big, stability is good；
(2) vertical slope protection position setting planting block and the geonet that grass planting bag is stacked in outside is set, slope slope protection position by
Geonet binds careless blanket, forms complex ecological system by planting block, grass planting bag, careless blanket, environmental-protecting performance is prominent, afforests effect
Fruit is significant；
(3) by drawknot screw joint steel pipe and planting block, to ensure that planting block installation is stablized；Exempted from by steel wire rope drawknot
Form removal and steel pipe topple to avoid template in roadbed casting process；By laying reinforcing rib in vertical fill orifice and being perfused
Pea gravel concreten forms stem, to realize the vertical drawknot between planting block.The safety of construction is good, globality is good；
(4) use construction in layer mode, each layer construction in by roadbed pour it is synchronous with the construction of outside protective slope structure progress, and
It is formd in each layer of construction and overlays geonet, non-dismantling formwork is installed, roadbed is poured, fills backfill, builds grass-planting brick, anti-package
The construction technology of geonet compares the separation construction of roadbed and guard system in traditional construction, substantially increases construction efficiency, contract
The short duration；
It (5) is prefabrication production using planting block, non-dismantling formwork and grass planting blanket, field operation amount is small, speed of application
Fastly；
(6) select foam concrete as roadbed material, light weight, flowability are good, independence is strong, waterproofness and durability
Good, filled load can be effectively reduced in comparison general concrete, to eliminate the settlement after construction of filler itself；It only needs to match in construction
Tube pump send foam concrete, shocks and rolls without machinery；Health is not necessarily to after construction.
Detailed description of the invention
Fig. 1 is the hard and soft combination combined type ecological slope protection side view of high steep foam concrete roadbed side slope；
Fig. 2 is the Section A-A sectional view of Fig. 1；
Fig. 3 is the section B-B sectional view of Fig. 1；
Fig. 4 is planting block perspective view；
Fig. 5 is the C-C cross-sectional view of Fig. 4；
Fig. 6 is non-dismantling formwork sectional view；
Fig. 7 is steel pipe sectional view；
Fig. 8 is that first layer foam concrete pours schematic diagram；
Fig. 9 is first layer backfill earthen backfill schematic diagram；
Figure 10 is second layer vertical section slope protection construction schematic diagram；
Figure 11 is n-th layer vertical section slope protection construction schematic diagram；
Figure 12 is that top layer foam concrete pours schematic diagram；
Figure 13 is that careless blanket is laid with schematic diagram.
In figure: 1. careless blankets, 2. tethers, 3. geonets, 4. levelling soil layers, 5. planting blocks, 501. planting grooves, 502. is vertical
Fill orifice, 503. screw holes, 6. drawknot screws, 7. nuts, 8. steel pipes, 801. stop collars, 802. threaded sleeves, 9. exempt from demoulding
Plate, 901. pull rings, 902. tongue and grooves, 903. preformed holes, 10. backfills, 11. stems, 12. wirerope, 13. Extended chemotherapies, 14. bubbles
Foam concrete roadbed, 15. reinforcing ribs, 16. grass planting bags.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawing and by embodiment, and following embodiment is to the present invention
Explanation be not limited to following embodiment.Certain way of concrete foundations slope construction, roadbed height are 8m, using high steep foam coagulation
The hard and soft combination combined type ecological slope protection system of native roadbed side slope and construction method.
As shown in Figure 1, planting block 5 arranges together that building height is 7100mm along roadbed horizontal direction every 1000mm；
Careless blanket 1 is factory's finished product, lap width 250mm；Tether 2 is composite fibre rope, vertically and horizontally arranges that spacing is 300mm.
As shown in Figure 2 and Figure 3, the high steep hard and soft combination combined type ecology shield of foam concrete roadbed side slope of the present invention
Slope system includes planting block 5, stem 11, non-dismantling formwork 9, geonet 3, steel pipe 8, drawknot screw 6, wirerope 12, expands base
Plinth 13；Planting block 5 is successively built on Extended chemotherapy 13 from below to up, by vertical fill orifice 502 formed up and down
Reinforcing rib 15 and casting concrete are configured in hole, is formed and reinforces stem 11, and 13 sectional dimension of Extended chemotherapy is 350mm × 350mm；
Geonet 3 is composite fiber web, and both ends are cast in foam concrete roadbed 14, inside fill backfill 10, and close
Stack grass planting bag 16 on the outside of side slope, the geonet 3 of slope position binds careless blanket 1 by the tether 2 of lashing, in every layer of geonet 3
10 height of backfill is 300mm；6 one end of drawknot screw is twisted and is fixed in threaded sleeve 802, and the other end is fixed on planting block 5
On, drawknot screw 6 is every one of 1000mm arrangement；12 one ends wound of wirerope is fixed in stop collar 801, other end drawknot in
On pull ring 901, wirerope 12 is every one of 300mm arrangement.
As shown in Figure 4 and Figure 5, planting block 5 is thin-wall mould-shell structure, and vertical fill orifice 502 is arranged in the back side, and front is set
Planting groove 501 is set, planting block 5 is having a size of long 500mm, high 300mm, width 300mm, wall thickness 30mm, vertical 502 plane of fill orifice
Having a size of 440mm × 120mm.
As shown in fig. 6, non-dismantling formwork 9 is reinforced concrete structure, tongue and groove 902, the pre-buried pull ring 901 in back is arranged in upper and lower side
And preformed hole 504 is set, non-dismantling formwork 9 is having a size of long 500mm, high 300mm, thickness 30mm, protrusion and the recessed size of tongue and groove 902
It is 15mm × 15mm.
As shown in fig. 7, welding two blocks of steel loops on the outside of steel pipe 8 as stop collar 801,8 outside uniform welding of steel pipe is threaded
Sleeve 802,801 spacing of stop collar are 300mm, and 802 spacing of threaded sleeve is 900mm.
As shown in Fig. 8 to Figure 13, before non-dismantling formwork installation, geonet 3 is layered on designated position in advance, guarantees geonet 3 one
End is routed in foam concrete roadbed 14；Then in 9 installation site drape layer cement mortar of non-dismantling formwork, by non-dismantling formwork 9
It snaps to build on geonet 3 and fix, and through 12 drawknot of wirerope on steel pipe 8；Secondly 6 one end of drawknot screw is passed through and is exempted from
Preformed hole 903 on form removal 9 is screwed in the threaded sleeve 802 on steel pipe 8, and the non-dismantling formwork 9 in be onstructed section is all
After installation is fixed, start to pour foam concrete.The first skin planting block 5 is built on Extended chemotherapy 13, outside side slope
Stack grass planting bag 16 in side；By 3 other end anti-package of geonet laid in advance and it is placed on grass planting bag 16；To the first skin grass planting
After building block 5 and grass planting bag 16 have been constructed, one layer of backfill 10 is filled on geonet 3；Anti-package is placed on grass planting bag 16
The expansion of geonet 3, which is laid on, have been backfilled in backfill 10 and the foam concrete poured.And so on placement layer by layer foam
Concrete and construction in layer backfill, until reaching design height, while 2 ~ 3 skin planting blocks 5 of every construction, i.e., to vertical perfusion
Pea gravel concreten is perfused in hole 502.After roadbed has all filled, it is laid with one layer of levelling soil layer 4 on the slope, is laid with careless blanket 1
And it is fixed on the slope by tether.
The hard and soft combination combined type ecological slope protection main construction course of above-mentioned high steep foam concrete roadbed side slope is as follows:
Step 1: preparation of construction: according to design requirement surveying and locating, marking 8 position of non-dismantling formwork 9, planting block 5 and steel pipe
Line, and steel pipe 8 is uniformly plugged in foam concrete shoulder.
Step 2: Extended chemotherapy is constructed: building position in planting block 5 and excavate groove, groove dimensions are than 5 bottom of planting block
Face size is bigger, configuration reinforcing rib 15 and casting concrete formation Extended chemotherapy 13 in groove；
Step 3: first layer foam concrete pours: before non-dismantling formwork installation, geonet 3 being layered on designated position in advance, guarantees soil
3 one end of work net is routed in foam concrete roadbed 14；Then in 9 installation site drape layer cement mortar of non-dismantling formwork, will exempt from
Form removal 9 is snapped to build on geonet 3 and be fixed, and through 12 drawknot of wirerope on steel pipe 8；Secondly by drawknot screw 6 one
The preformed hole 903 on non-dismantling formwork 9 is held, screws in the threaded sleeve 802 on steel pipe 8, exempts to tear open in be onstructed section
After the whole installations of template 9 are fixed, start to pour foam concrete.
Step 4: first layer backfills earthen backfill: the first skin planting block 5 is built on Extended chemotherapy 13, close to side slope
Stack grass planting bag 16 in outside；By 3 other end anti-package of geonet laid in advance and it is placed on grass planting bag 16；It is planted to the first skin
After careless building block 5 and grass planting bag 16 have been constructed, one layer of backfill 10 is filled on geonet 3；Anti-package is placed on grass planting bag 16
The expansion of geonet 3 be laid on and backfilled in backfill 10 and the foam concrete poured；
Step 5: the vertical slope protection of construction in layer: repeating step 3 and step 4 until reaching design height, while every construction 2 ~ 3
Pea gravel concreten is perfused into vertical fill orifice 502 in skin planting block 5.
Step 6: upper ramps slope protection construction: after the completion of vertical component slope protection construction, with reference to step 3 and step 4, into
Row foam concrete is poured constructs with backfill；After roadbed has all filled, it is laid with one layer of levelling soil layer 4, paving on the slope
If careless blanket 1 is simultaneously fixed on the slope by tether.
Step 7: greening construction: after side slope has all been constructed, inserting planting soil in the planting groove 501 of planting block 5
With green plant or grass seeds, and conserve in time.
It describes the invention in detail in conjunction with the embodiments above, but the content is only preferable implementation of the invention
Example, should not be considered as limiting the scope of the invention.It is all according to all the changes and improvements made by the present patent application range
Deng should all still fall within patent covering scope of the invention.
Claims (1)
1. the hard and soft combination combined type ecological slope protection construction method of foam concrete roadbed side slope, it is characterised in that including following step
It is rapid:
S1: according to design requirement surveying and locating, marking non-dismantling formwork (9), planting block (5) and steel pipe (8) position line, and
Foam concrete shoulder uniformly plugs steel pipe (8)；
S2: position is built in planting block (5) and excavates groove, groove dimensions are more bigger than planting block (5) bed-plate dimension, in groove
It configures reinforcing rib (15) and casting concrete forms Extended chemotherapy (13)；
S3: before non-dismantling formwork installation, geonet (3) is layered on designated position in advance, it is mixed guarantees that geonet (3) one end is routed to foam
In solidifying dirt road base (14)；Then in non-dismantling formwork (9) installation site drape layer cement mortar, non-dismantling formwork (9) is snapped in soil
It builds and fixes on work net (3), and through wirerope (12) drawknot on steel pipe (8)；Secondly drawknot screw (6) one end is passed through and is exempted from
Preformed hole (903) on form removal (9) screws in the threaded sleeve (802) on steel pipe (8), exempts to tear open in be onstructed section
After template (9) whole installation is fixed, start to pour foam concrete；
S4: building the first skin planting block (5) on Extended chemotherapy (13), is stacking grass planting bag (16) on the outside of side slope；It will
Geonet (3) other end anti-package that lays in advance is simultaneously placed on grass planting bag (16)；To the first skin planting block (5) and grass planting
After bag (16) has been constructed, one layer of backfill (10) is filled on geonet (3)；Anti-package is placed on the geotechnique on grass planting bag (16)
Net (3) expansion, which is laid on, have been backfilled in backfill (10) and the foam concrete poured；
S5: repeating S3 ~ S4, until reaching design height, while 2 ~ 3 skin planting blocks (5) of every construction, i.e., to vertical fill orifice
(502) pea gravel concreten is perfused in；
S6: after the completion of vertical component slope protection construction, foam concrete placement layer by layer is carried out with reference to S3 and S4 and backfill layering is applied
Work；After roadbed has all filled, it is laid with one layer of levelling soil layer (4) on the slope, be laid with careless blanket (1) and is fixed on by tether
On slope；
S7: after formula ecological slope protection system to be composite has all been constructed, the filling plantation in the planting groove (501) of planting block (5)
Native and green plant or grass seeds, and conserve in time.
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| CN201910212607.9A CN109750682B (en) | 2019-03-20 | 2019-03-20 | Construction method of rigid-flexible combined ecological slope protection of foam concrete roadbed side slope |
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Cited By (2)
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| CN110482709A (en) * | 2019-09-23 | 2019-11-22 | 江苏省农业科学院 | Dynamic governance structure and method before combined pollution type branch creek water body converges |
| CN111305152A (en) * | 2020-03-25 | 2020-06-19 | 杭州昂创科技有限公司 | Construction method for ecological protection of stepped three-dimensional reinforced abutment conical slope |
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| CN111305152A (en) * | 2020-03-25 | 2020-06-19 | 杭州昂创科技有限公司 | Construction method for ecological protection of stepped three-dimensional reinforced abutment conical slope |
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| CN109750682B (en) | 2021-06-22 |
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