CN207714263U - A kind of ecological protective measures structure - Google Patents
A kind of ecological protective measures structure Download PDFInfo
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- CN207714263U CN207714263U CN201721601867.8U CN201721601867U CN207714263U CN 207714263 U CN207714263 U CN 207714263U CN 201721601867 U CN201721601867 U CN 201721601867U CN 207714263 U CN207714263 U CN 207714263U
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- spats
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- river
- anchor cable
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Abstract
The utility model belongs to bank-protection works field, more particularly to a kind of ecological protective measures structure, slope protection works and spats engineering is arranged in river from top to bottom, and wherein slope protection works includes filtering layer, bank protection brick layer and ecology bag layer, and bank protection brick layer and ecology bag layer are arranged on filtering layer；Spats engineering includes diagonal brace double-row pile, anchor cable spats and shotcrete spats, diagonal brace double-row pile is set to the outside of rock shoulder, diagonal brace double-row pile is anchored in ground on the outside of diagonal brace double-row pile by anchor cable spats through diagonal brace double-row pile by drilling, and the rock shoulder in river or less is arranged in shotcrete spats.The beneficial effects of the utility model：Multilayer slope protection works makes the impact resistance in riverbed enhance, diagonal brace double-row pile support strength is big, and it is fixed using anchor cable spats, ensure the firm of river spats, the anchor pole of shotcrete spats increases the frictional force between joint plane and rock stratum, the anti-seepage effect for enhancing river provides solution for the antiseepage in river, the multi-functional demand of flood control.
Description
Technical field
The utility model belongs to bank-protection works field more particularly to a kind of ecological protective measures structure.
Background technology
With social continuous development, people's grade requirement is also higher and higher, and greening more and more becomes product with water system
The key that position is promoted builds landscape impoundments, landscape reservoir etc. for the city of water resource relative shortage using city river
As the indispensable component part of urban development.Therefore, it is generally required in the premise item for meeting flood passage when city river is administered
It selects Rational structure to be further processed under part, needs to select adaptive deformation ability in this way under city river river channels
By force, the strong structure type of erosion resistibility.
Using river, mean minimum position is divided into two parts to bank-protection works as boundary for many years, i.e., low water level is referred above to " bank protection work
Journey ", low water level hereinafter referred to as " spats engineering ".The principle of slope protection works is bank protection after first spats.It, can be on slope to prevent avalanche
Face is built slope protection works and is reinforced, this reduces investment outlay than cutting slope, and speed is fast.Common slope protection works has：Dry-laid rubble and mixed
Solidifying earth building blocks bank protection, mortar flag stone and concrete revetment, trellis moulding bank protection, whitewashing and concrete revetment, the solid method bank protection of paving etc..
It is small in bedrock fracture, there is no the place of big avalanche, to prevent basement rock weathering off, carries out whitewashing or pneumatically placed concrete protection.
If can gather materials on the spot, with can plasticine for physical spraying it is relatively inexpensive, can plasticine for physical also do the bed course whitewashed.Currently, with protection
The protection method of the continuous development of engineering, more and more types is applied in Practical Project.For protection system, mainly
It act as sealing and earth-retaining.In order to realize good protection effect, a variety of different requirements are proposed to protection system in engineering.
For different types of protection method, there is the respective and scope of application, while also having the deficiency of itself
Place：For simple slope protection construction, in city river protection works, due to underground installation and the intensive building of surrounding
In the presence of this mode is difficult to realize；Using diaphram wall, the period of construction is long and of high cost；Using inner support branch
Protection structure, channel excavation is not very convenient, and live construction is relatively difficult, and cost is relatively high.
Traditional slope protection works reinforcement measure mainly uses the Grey engineerings such as stone-laying or pneumatically placed concrete, and doing so can cause
Vegetation can not restore in side slope, destroy ecological environment, and influence the usage experience of people.
Utility model content
To solve the above problems, the utility model provides a kind of ecological protective measures structure.
The technical solution of the utility model：A kind of ecological protective measures structure, including slope protection works and spats engineering, it is special
Sign is the low water level arrangement above slope protection works in river, the low water level spats engineering arranged below in river；
The slope protection works includes filtering layer, bank protection brick layer and ecology bag layer, and the bank protection brick layer and the setting of ecology bag layer exist
On the filtering layer, the bank protection brick layer, the ecology bag layer and the shield are set gradually from Channel slope top to bottom of river channel
Foot engineering；
The spats engineering includes diagonal brace double-row pile, anchor cable spats and shotcrete spats, and the diagonal brace double-row pile is set to rock
The outside of shoulder, ground opens up drilling on the outside of the diagonal brace double-row pile, and the anchor cable spats passes through brill through the diagonal brace double-row pile
The diagonal brace double-row pile is anchored in ground on the outside of rock shoulder by hole, and the rock shoulder portion in river or less is arranged in the shotcrete spats.
Further, the bank protection brick layer includes the revetment brick being connected with each other, and the revetment brick includes brick main body, limit
Foot, locating slot, vegetation growth slot, vegetation growth area, the position-limit foot are arranged in the quadrangle of the brick main body, the vegetation growth
Area is arranged in the brick main body, and the inner edge of the position-limit foot and the side wall of the brick main body form the locating slot, the brick
The side wall of main body is provided with vegetation growth slot, and the shape of the position-limit foot and the locating slot matches, two position-limit foots
Area be equal to the locating slot area；
The vegetation growth area is two, and the vegetation growth area is circle, and the vegetation growth slot is semicircle, described
Vegetation growth area is identical with the radius of vegetation growth slot described in shape, and the vegetation growth slot of adjacent revetment brick forms circle.
Further, the ecology bag layer includes the ecology bag being connected with each other, and filled layer is arranged in the ecology bag, described
Filled layer includes soil horizon and metalling, and the soil horizon is trapped among outside metalling, and the ecology bag includes exterior cover sheets, reinforces
Layer, the first vegetable layer, internal application of anti-leakage layers, the exterior cover sheets, enhancement layer, the first vegetable layer, internal application of anti-leakage layers are successively by outer
To interior setting.
Further, the shotcrete spats includes anchor pole and gunite concrete panel, the gunite concrete panel spray paving
In rock shoulder hereinafter, being laid with bar-mat reinforcement between the gunite concrete panel and ground contact surface, the anchor pole passes through the embedded rock of drilling
Internal portion.
Further, the diagonal brace double-row pile includes preceding campshed and rear campshed, it is described after campshed height higher than before described
The height of campshed, the front row stake top end are equipped with preceding Guan Liang, and heel row stake top end is equipped with rear Guan Liang, and front row stake top end level is set
It is equipped with the linking beam being connect with rear campshed, raker beam, the preceding campshed are equipped between the front row stake top and heel row stake top
Pile body and it is described after on pile body of row pile setting perforation hole of reeving, the drilling that ground opens up on the outside of the diagonal brace double-row pile with it is described
It reeves hole unicom, the anchor cable spats is through reeve hole and the drilling.
Further, the preceding campshed and the rear campshed are enclosed reinforcing area, are to reinforce in the reinforcing area
The soil body.
Further, the anchor cable spats includes locking anchorage and anchor cable, and the locking anchorage setting is double in the diagonal brace
Outside campshed, the anchor cable is through diagonal brace double-row pile and is anchored in the ground in the river, and the anchor cable is prestressed anchor hitch
Structure, the anchor cable are made of more underrelaxation steel strand wires, and antirust coat is respectively provided with outside the more underrelaxation steel strand wires.
Further, the anchor cable is divided into free segment and anchoring section, in the boundary of the free segment and the anchoring section
Only slurry sealing device, the free segment part use the smooth casing pipe protection of housing, the anchoring section to use housing radiation fins for setting
Pipe protects, and slip casting casing is arranged in the smooth casing and the corrugated bushing.
Further, the only slurry sealing device uses hermetic bag, and hermetic bag both ends lashing is on anchor cable, quilt
Slurry-inlet valve there are one should at least being stayed on the slip casting casing of the hermetic bag package.
Further, it is provided with isolation mount between the corrugated bushing and drilling.
The beneficial effects of the utility model：Structure setting is reasonable, and the integrated support intensity of diagonal brace double-row pile is big, and uses anchor
Rope spats is fixed, and is ensured that the firm of river spats, the anchor pole of shotcrete spats increase the frictional force between joint plane and rock stratum, is enhanced rock
The stability of block or rock stratum, the effect of gunite concrete panel are to reinforce country rock, prevent sillar from removing or falling, multiple using multistage
Closing structure makes the impact resistance in river strong, enhances the anti-seepage effect in river, is provided for the antiseepage in river, the multi-functional demand of flood control
Solution, and it is easy for construction.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the diagonal brace double-row pile of the utility model；
Fig. 3 is the structural schematic diagram of the anchor cable spats of the utility model；
Fig. 4 is the A-A sectional views of Fig. 3；
Fig. 5 is the B-B sectional views of Fig. 3；
Fig. 6 is that the utility model is in lattice layout drawing；
Fig. 7 is that the utility model is in single trigonometric expression layout drawing；
Fig. 8 is that the bank protection brick layer of the utility model puts schematic diagram；
Fig. 9 is the structural schematic diagram of the revetment brick of the utility model；
Figure 10 is that the ecology bag layer of the utility model puts schematic diagram；
Figure 11 is the structural schematic diagram of the ecology bag of the utility model；
Figure 12 is the sectional view of Figure 11；
In figure, 1. diagonal brace double-row piles, 2. anchor cable spats, 3. shotcrete spats, 4. rivers, 5. rock shoulders, 6. gunite concrete faces
Guan Liang, 12. linking beams, 13. raker beams, 14. are reeved behind Guan Liang, 11. before campshed, 10. behind campshed, 9. before plate, 7. anchor poles, 8.
Only slurry sealing fills for hole, 15. drillings, 16. soil mass consolidations, 17. locking anchorages, 18. anchor cables, 19. free segments, 20. anchoring sections, 21.
Set, 22. smooth casings, 23. corrugated bushings, 24. steel strand wires, 25. slip casting casings, 26. isolation mounts, 27. low water levels, 28. filter
Layer, 29. bank protection brick layer, 30. ecology bag layers, 31. spats engineerings, 32. revetment bricks, 33. brick main bodys, 34, position-limit foot, 35. positioning
Slot, 36. vegetation growth slots, 37. vegetation growth areas, 38. ecology bags, 39. exterior cover sheets, 40. enhancement layers, 41. first vegetation
Layer, 42. inside application of anti-leakage layers, 43. soil horizons, 44. metallings, 45. fixed structures, 46. flanks.
Specific implementation mode
It explains below in conjunction with the accompanying drawings to a kind of specific implementation mode of the utility model.
Fig. 1 is the structural schematic diagram of the utility model；The utility model is related to a kind of ecological protective measures structures.
A kind of ecological protective measures structure, including slope protection works and spats engineering, 27 arrangement above of the low water level shield in river
Slope engineering, the 27 spats engineering arranged below of low water level in river；
Slope protection works includes filtering layer 28, bank protection brick layer 29 and ecology bag layer 30, and bank protection brick layer and the setting of ecology bag layer are being filtered
On layer, bank protection brick layer 29, ecology bag layer 30 and spats engineering 31 are set gradually from Channel slope top to bottom of river channel；
Spats engineering 31 includes diagonal brace double-row pile 1, anchor cable spats 2 and shotcrete spats 3, and Fig. 2 is the diagonal brace of the utility model
The structural schematic diagram of double-row pile；Diagonal brace double-row pile 1 is set to the outside of rock shoulder 5, is used to support the ground knot in the outside of rock shoulder 5
Structure ensures that Channel slope is firm.1 outside ground of diagonal brace double-row pile opens up drilling 15, and drilling 15 is used for the installation of anchor cable spats 2,
Diagonal brace double-row pile is anchored on 5 outside ground of rock shoulder through diagonal brace double-row pile 1 by drilling 15 by anchor cable spats 2, for anchoring
Diagonal brace double-row pile 1 plays booster action to spats structure, increases the firm of spats structure.
Fig. 8 is that the bank protection brick layer of the utility model puts schematic diagram；Fig. 9 is that the structure of the revetment brick of the utility model is shown
It is intended to；Bank protection brick layer 29 include be connected with each other revetment brick 32, revetment brick 32 include brick main body 33, position-limit foot 34, locating slot 35,
Vegetation growth slot 36, vegetation growth area 37, position-limit foot 34 are arranged in the quadrangle of brick main body 33, and vegetation growth area 37 is arranged in brick master
In body 33, the inner edge of position-limit foot 34 forms locating slot 35 with the side wall of brick main body 33, and the side wall of brick main body 33 is provided with vegetation life
Elongated slot 36, position-limit foot 34 and the shape of locating slot 35 match, and the area of two position-limit foots 34 is equal to the area of locating slot 35, limit
Position foot 34 and locating slot 35 coordinate, and realize that the connection positioning of adjacent revetment brick 32 forms bank protection brick layer 29；
Vegetation growth area 37 is two, and vegetation growth area 37 is circle, and vegetation growth slot 36 is semicircle, vegetation growth area
37 is identical with the radius of vegetation growth slot 36, and the vegetation growth slot 36 of adjacent revetment brick is oppositely arranged to form circle, and setting is reasonable,
Planning is neat, is conducive to revegetation in side slope, improves the ecological environment, and effectively afforests.
Figure 11 is the structural schematic diagram of the ecology bag of the utility model；Figure 12 is the sectional view of Figure 11；Ecology bag layer 30 wraps
The ecology bag 38 of interconnection is included, filled layer is set in ecology bag 38, filled layer includes 44 soil horizon of soil horizon 43 and metalling
43 are trapped among outside metalling 44, and ecology bag includes exterior cover sheets 39, enhancement layer 40, the first vegetable layer 41, internal application of anti-leakage layers 42, outside
Portion's protective layer 39, enhancement layer 40, the first vegetable layer 41, internal application of anti-leakage layers 42 are arranged from outside to inside successively；First vegetable layer 41 is
Vegetable seeds, water storage agent and fertilizer mixture layer；Water storage agent and fertilizer provide good environment for plant seed germination and growth,
First vegetable layer 41 can be received after engineering is built up by the biology in native country and animal, mutually coordinate with the landscape environment of surrounding.Reinforce
Layer 40 uses reticular structure, and Tough structure is firm, and the mesh of reticular structure is using square or hexagon, it is easy to accomplish, mesh
Lateral reinforced wire is arranged in part, improves integral strength, 3~4mm of mesh aperture, not only proof strength, but also is conducive to vegetable seeds
Germination.Exterior cover sheets 39 use composite terylene geotextiles, and composite terylene geotextiles include core made of terylene and terylene core
The polypropylene fibre layer of the outer surface cladding of body；Internal application of anti-leakage layers 42 uses polypropylene spunbond non-woven fabrics；
Exterior cover sheets 39 are connected with internal application of anti-leakage layers 42 using needling process, the composite terylene that exterior cover sheets 39 use
Geotextiles itself have certain UV resistance；
Ecology bag integral strength is high, and nontoxic, anti-aging, acid and alkali-resistance salt corrosion, blowing-resistant drenches with rain, anti-oxidant, service life
It is long, be conducive to vegetation and quickly pass through ecology bag growth, is afforested using the seed of plant.Metalling 44 is natural block stone, ovum
Stone, rubble, recycled concrete aggregate mixed layer, the macadam gradating that metalling 44 uses is 2~5cm, and material can draw materials nearby, cost
It is low, effectively keep integral strength.
Shotcrete spats 3 is set to 5 or less the rock shoulder in river；The integrated support intensity of diagonal brace double-row pile 1 is big, and uses anchor cable
Spats 2 is fixed, and ensures that the firm of 4 safeguard structure of river, the anchor pole of shotcrete spats 3 increase the frictional force between joint plane and rock stratum,
Enhance the stability of sillar or rock stratum, the effect of gunite concrete panel is to reinforce country rock, prevents sillar from removing or falling, enhances
The anti-seepage effect in river, enhances the impact resistance in river, and protection system ensure that the safety of structure and the smooth construction of engineering.
5 or less the rock shoulder in river makees shotcrete spats 3.Shotcrete spats 3 includes anchor pole 7 and gunite concrete panel 6, and injection is mixed
Solidifying soil panel 6 spray is layered on rock shoulder 5 hereinafter, being laid with bar-mat reinforcement between gunite concrete panel 6 and ground contact surface, and anchor pole 7 passes through brill
Hole is embedded in inside rock mass, and the anchor pole 7 of shotcrete spats 3 increases the frictional force between joint plane and rock stratum, enhances the steady of sillar or rock stratum
Qualitative, the effect in gunite concrete face 6 is to reinforce country rock, and bar-mat reinforcement prevents sillar from removing or falling.
Diagonal brace double-row pile 1 includes preceding campshed 8 and rear campshed 9, is arranged in 5 outside of rock shoulder, and rear campshed 9 need to enter rock 2m, carry out
Inner support, it is ensured that design brace pre axial force.Preceding campshed 8 and rear campshed 9 are deposited reinforced concrete pile, and the height of rear campshed 9 is higher than
The height of preceding campshed 8,8 top of preceding campshed are equipped with preceding Guan Liang 10, and 9 top of rear campshed is equipped with rear Guan Liang 11, and 8 top of preceding campshed is horizontal
It is provided with the linking beam 12 being connect with rear campshed 9, raker beam 13 is equipped between 9 stake top of 8 stake top of preceding campshed and rear campshed, diagonal brace is double
The hole 14 of reeving of setting perforation on the preceding campshed 8 and rear campshed 9 of campshed 1, the drilling 15 and hole of reeving that the peripheral ground in river 4 opens up
14 unicom are in a straight line, and anchor cable spats 2 can increase the stabilization of diagonal brace double-row pile cantilever segment through reeve hole 14 and the drilling 15
Property, displacement at pile top is reduced, while the reliability that stake is connect with Guan Liang can also be improved, campshed becomes bending component before making, and improves
The bend-carrying capacity of preceding campshed.Hole 14 reeve using DNl60 steel pipe indwellings, thickness of steel pipe 5mm, column beam muscle should be around steel pipe, such as
It cuts off to increase and helps dowel.It is stayed on wall simultaneously and sets PVC-U, DN200 drain holes.Notice that unwrapping wire positions when construction, strictly
Control box out position and angle.
Preceding campshed 8 around river setting forms front-seat pile body group, the pile body formed around the rear campshed 9 of river setting
Group forms reinforcing area, is soil mass consolidation 16 in reinforcing area, enhances double-row pile between front-seat pile body group and heel row pile body group
Intensity is overally supported, ensures the firm of river spats structure, the landslide for preventing river is destroyed by rush of water, and is eliminated safe hidden trouble.
Fig. 6 is that the utility model is in lattice layout drawing；Fig. 7 is that the utility model is in single trigonometric expression layout drawing；
The pile body horizontal layout of preceding campshed group and rear campshed group is easy to construct, overally support in lattice or single trigonometric expression
Intensity is big.
Fig. 3 is the structural schematic diagram of the anchor cable spats of the utility model；Fig. 4 is the A-A sectional views of Fig. 3；Fig. 5 is Fig. 3
B-B sectional views；Anchor cable spats includes locking anchorage 17 and anchor cable 18, and locking anchorage 17 is arranged outside diagonal brace campshed 1, and anchor cable 18 passes through
It wears diagonal brace double-row pile 1 and is anchored in the ground in river 4, anchor cable 18 is prestressed anchor Cable Structure, needs tensioning and locking construction
Processing, tensioning are carried out when anchoring section intensity is more than 15MPa and is not less than the 75% of design strength grade, in order to reduce neighbouring anchor
The stress influence of rope, and construction speed is not influenced, using " jumping a method ", i.e., the method for drawing 1 every 2.Before formal tensioning, design should be taken
The 20% of pulling force Nt takes 160kN to carry out pre- tensioning 2 times to anchor cable, keeps each location contacts close, and anchor cable is close with soil layer, generates
Preliminary shearing.Hierarchical loading circulation stretch-draw is taken in formal tensioning, stablizes 3min after every grade of load, be stretched to 880kN and hold lotus 5min without
After variation, it is offloaded to locking load 500kN and carries out locking operation.Anchor cable 18 is made of more underrelaxation steel strand wires 24, steel strand wires
Strength standard value fptkThe design withdrawal resistance of=1860MPa, single anchor cable 18 are 800kN, the design anchor force 50kN/ of anchored end
M, intensity is big, is respectively provided with antirust coat outside more underrelaxation steel strand wires, plays the role of antirust.
Anchor cable 18 divides for free segment 19 and anchoring section 20, in the boundary of free segment 19 and anchoring section 20 setting only slurry sealing
Device 21, and there is good sealing performance, convenient for control segmenting slip casting, 19 part of free segment is anti-using the smooth casing 22 of housing
Shield, anchoring section 20 are protected using housing corrugated bushing 23, and setting slip casting casing 25, convenient in smooth casing 22 and corrugated bushing 23
In free segment 19 and 20 slip casting of anchoring section, it is easy to accomplish, slip casting is evenly distributed.
Only slurry sealing device 21 uses hermetic bag, and has good sealing performance, and hermetic bag both ends lashing is in anchor
Suo Shang, it is easily operated, it should at least be stayed there are one slurry-inlet valve on the slip casting casing 25 of hermetic bag package, facilitate control slip casting.
It is provided with isolation mount 26 between corrugated bushing 23 and drilling 15, slip casting set is also provided between corrugated bushing 23 and drilling 15
Pipe, convenient for control slip casting, isolation mount 26 ensures the relative position of corrugated bushing 25 and drilling 15 after slip casting.
26 1400~1600mm of spacing of isolation mount is arranged one, and bearing height is not less than 20mm, ensures slip casting postwave
The relative position of line casing 25 and drilling 15, isolation mount 26 is welded with plain bar, simple in structure, is readily produced reality
It is existing.
Underrelaxation steel strand wires 24 are 8, and intensity is big, and locking anchorage 17 uses porous strand tapered anchorage, facilitate fixed low pine
Relaxation steel strand wires can be such that post-tensioning component thickness is thinned, overcome group anchor system lower prestress and excessively concentrate using it.
Work progress：Construction including bank protection brick layer 29, ecology bag layer 30 and spats engineering 31, it is specific as follows：
1. the Specific construction process of bank protection brick layer 29：
It is laid with basal layer：Original Channel slope is cleared up, is tamped and smooth, for the requirement for reaching smooth, by broken
Rock layers bed course is levelling；
Filtering layer pavement 28 on basal layer, filtering layer 28 are geotextiles, and the lap of splice of Weaving type geotextile, geotextiles is
30cm (+2cm) is sewed at the scene using special equipment；
It is laid with revetment brick layer 29 on filtering layer 28, is quick construction, carries out revetment brick 32 in advance and connects, scene is by crane
Disposably lifting is laid on filtering layer 28 with special extension coral, is embedded in the revetment brick that a portion connects at the top of bank protection
It in soil, is anchored, the revetment brick that bottom connects is embedded in trench by bottom by way of digging trench, can also be laid in beach
On face.
2. the Specific construction process of ecology bag layer 30：
It is laid with basal layer：Original Channel slope is cleared up, is tamped and smooth, the requirement to reach smooth passes through rubble
Layer bed course is levelling；
Filtering layer pavement 28 on basal layer, filtering layer 28 are geotextiles, and the lap of splice of Weaving type geotextile, geotextiles is
30cm (+2cm) is sewed at the scene using special equipment；
Ecology bag 38 is filled：Ecology bag 38 is loaded in construction site, to save traffic expense.Basis and slopes processing generate simultaneously
Soil or rubble can be used for filling ecology bag.Filler in bag depends on actual needs, is in general suitable for filling out for pack
Filling object includes：Soil, rubble are conducive to the fertilizer of plant growth or the mixture of above-mentioned material.General envelope method is to make
With plastics clasp.
3. spats engineering Specific construction process:
1) diagonal brace double-row pile 1 need to enter rock 2m, carry out inner support, it is ensured that design brace pre axial force.
2) anchor cable construction, mainly comprising the following steps that set up operation flat, --- drilling machine is in place, adjusts the angle --- drilling rope hole ---
High-pressure blast washes hole of reeving, and --- anchor cable prepares and assembling, and --- anchor cable and Grouting Pipe place --- slip casting --- maintenance --- tensioning
And locking.
It is as follows：
(A) operating platform is set up：Prestress anchorage cable and backfill follow-up construction operation, since retaining wall has been constructed in advance
Finish, anchor cable construction should set up operating platform to ensure drilling machine operation in place.Operating platform is elongated on the outside of retaining wall to be set up, width
3m, work layer completely spread 50mm solid woods, and job platform, which leads to anchor cable construction progress, gradually to be increased.
(B) drilling machine is in place and adjusts the angle：MD-50 type drilling machines are selected to drill, adjustment drilling rod and level side before drilling
To at 20 ° of angles, slowly it is inserted into the rock-soil layer at the barricade back side by campshed (column) wall preformed hole.
(C) rope hole is drilled：Boring aperture 150mm, it is desirable that anchor pole hole depth is no less than design length, does not also design preferably greater than
The 1% of length.Foot of hole deflection size is not more than the 3% of length, can control boring direction with clinograph.
(D) anchor cable is prepared and is assembled：Prestress anchorage cable is made of 8 underrelaxation steel strand wires, steel strand wires strength standard value fptk
The design withdrawal resistance of=1860MPa, single anchor cable are 800kN, the design anchor force 50kN/m of anchored end.To steel strand wires before making
Witness sampling experiment is carried out, and carries out visual examination, could be used after qualified.Steel strand wires should make processing of rust removing, stringent by design
Size blocks blanking, and per share error in length is not more than 50mm.Overall length uses F-236 type antirust agent brushings.
Anchor cable 18 divides for free segment 19 and anchoring section 20, in the boundary of free segment 19 and anchoring section 20 setting only slurry sealing
Device 21, and there is good sealing performance, convenient for control segmenting slip casting, free segment 19 is protected using the smooth casing 22 of housing,
Anchoring section 20 is protected using housing corrugated bushing 23, setting slip casting casing 25 in smooth casing 22 and corrugated bushing 23, it is ensured that note
Slurry is evenly distributed.Slurry-inlet valve there are one should at least being stayed on the slip casting casing 25 of hermetic bag package, facilitates control slip casting.
(E) placement of anchor cable 18 and Grouting Pipe：Anchor cable 18 with high-pressure blast washes drilling before placing, and hack, eliminating impurities are done
Only, anchor cable 18 is directed at drill center, is slowly inserted into design position.
(F) secondary grouting, a common pressure grouting, secondary high-pressure slip-casting are used.Anchoring section 20 is first noted when slip casting, waits for slurries initial set
Reach and tensioning is carried out to anchoring section 20 after design strength, then slip casting free segment 19 again, makes anchoring section 20 and 19 boundary of free segment
Clearly.
(G) tensioning and locking：Tensioning is carried out using mating jack YCQ-100, is tried tensioning equipment before tensioning
It tests and demarcates；Tensioning is carried out when anchoring section intensity is more than 15MPa and is not less than the 75% of design strength grade, in order to reduce neighbour
The stress influence of nearly anchor cable, and construction speed is not influenced, using " jumping a method ", i.e., the method for drawing 1 every 2.Before formal tensioning, it should take
The 20% of design pulling force Nt takes 160kN to carry out pre- tensioning 2 times to anchor cable, keeps each location contacts close, and anchor cable is close with soil layer,
Generate preliminary shearing.Hierarchical loading circulation stretch-draw is taken in formal tensioning, stablizes 3min after every grade of load, is stretched to 88kKN and holds lotus
After 5min is unchanged, it is offloaded to locking load 500kN and carries out locking operation.
4) rock mass sets anchor pole 7 (diameter 25mm anchor poles, aperture 120mm, long 5m, quincuncial arrangement) and carries out anchor under rock shoulder
Spray spats 3；
5) channel excavation and main structure construction are done segmentation and are carried out, per segment length 6~lOm, construction joint setting 1/4~
At 1/3 girder span.
Embodiment 1
A kind of ecological protective measures structure, including slope protection works and spats engineering, 27 arrangement above of the low water level shield in river
Slope engineering, the 27 spats engineering arranged below of low water level in river；
Slope protection works includes filtering layer 28, bank protection brick layer 29 and ecology bag layer 30, and bank protection brick layer and the setting of ecology bag layer are being filtered
On layer, bank protection brick layer 29, ecology bag layer 30 and spats engineering 31 are set gradually from Channel slope top to bottom of river channel；
Spats engineering 31 includes diagonal brace double-row pile 1, anchor cable spats 2 and shotcrete spats 3, and Fig. 2 is the diagonal brace of the utility model
The structural schematic diagram of double-row pile；Diagonal brace double-row pile 1 is set to the outside of rock shoulder 5, is used to support the ground knot in the outside of rock shoulder 5
Structure ensures that Channel slope is firm.1 outside ground of diagonal brace double-row pile opens up drilling 15, and drilling 15 is used for the installation of anchor cable spats 2,
Diagonal brace double-row pile is anchored on 5 outside ground of rock shoulder through diagonal brace double-row pile 1 by drilling 15 by anchor cable spats 2, for anchoring
Diagonal brace double-row pile 1 plays booster action to spats structure, increases the firm of spats structure.
Fig. 8 is that the bank protection brick layer of the utility model puts schematic diagram；Fig. 9 is that the structure of the revetment brick of the utility model is shown
It is intended to；Bank protection brick layer 29 include be connected with each other revetment brick 32, revetment brick 32 include brick main body 33, position-limit foot 34, locating slot 35,
Vegetation growth slot 36, vegetation growth area 37, position-limit foot 34 are arranged in the quadrangle of brick main body 33, and vegetation growth area 37 is arranged in brick master
In body 33, the inner edge of position-limit foot 34 forms locating slot 35 with the side wall of brick main body 33, and the side wall of brick main body 33 is provided with vegetation life
Elongated slot 36, position-limit foot 34 and the shape of locating slot 35 match, and the area of two position-limit foots 34 is equal to the area of locating slot 35, limit
Position foot 34 and locating slot 35 coordinate, and realize that the connection positioning of adjacent revetment brick 32 forms bank protection brick layer 29；
Vegetation growth area 37 is two, and vegetation growth area 37 is circle, and vegetation growth slot 36 is semicircle, vegetation growth area
37 is identical with the radius of vegetation growth slot 36, and the vegetation growth slot 36 of adjacent revetment brick is oppositely arranged to form circle, and setting is reasonable,
Planning is neat, is conducive to revegetation in side slope, improves the ecological environment, and effectively afforests.
Figure 11 is the structural schematic diagram of the ecology bag of the utility model；Figure 12 is the sectional view of Figure 11；Ecology bag layer 30 wraps
The ecology bag 38 of interconnection is included, filled layer is set in ecology bag 38, filled layer includes 44 soil horizon of soil horizon 43 and metalling
It being trapped among outside metalling 44 outside 43, ecology bag includes exterior cover sheets 39, enhancement layer 40, the first vegetable layer 41, internal application of anti-leakage layers 42,
Exterior cover sheets 39, enhancement layer 40, the first vegetable layer 41, internal application of anti-leakage layers 42 are arranged from outside to inside successively；First vegetable layer 41
For vegetable seeds, the mixture layer of water storage agent and fertilizer；Water storage agent and fertilizer provide good ring for plant seed germination and growth
Border, the first vegetable layer 41 can be received by the biology in native country and animal after engineering is built up, mutually coordinate with the landscape environment of surrounding.Add
Strong layer 40 uses reticular structure, and Tough structure is firm, and the mesh of reticular structure is using square or hexagon, it is easy to accomplish, net
The lateral reinforced wire of bore portion setting, improves integral strength, 3~4mm of mesh aperture, not only proof strength, but also is conducive to plant species
Son germination.Exterior cover sheets 39 use composite terylene geotextiles, and composite terylene geotextiles include core and terylene made of terylene
The polypropylene fibre layer of the outer surface cladding of core；Internal application of anti-leakage layers 42 uses polypropylene spunbond non-woven fabrics；
Exterior cover sheets 39 are connected with internal application of anti-leakage layers 42 using needling process, the composite terylene that exterior cover sheets 39 use
Geotextiles itself have certain UV resistance；
Ecology bag integral strength is high, and nontoxic, anti-aging, acid and alkali-resistance salt corrosion, blowing-resistant drenches with rain, anti-oxidant, service life
It is long, be conducive to vegetation and quickly pass through ecology bag growth, is afforested using the seed of plant.Metalling 44 is natural block stone, ovum
Stone, rubble, recycled concrete aggregate mixed layer, the macadam gradating that metalling 44 uses is 2~5cm, and material can draw materials nearby, cost
It is low, effectively keep integral strength.
Shotcrete spats 3 is set to 5 or less the rock shoulder in river；The integrated support intensity of diagonal brace double-row pile 1 is big, and uses anchor cable
Spats 2 is fixed, and ensures that the firm of 4 safeguard structure of river, the anchor pole of shotcrete spats 3 increase the frictional force between joint plane and rock stratum,
Enhance the stability of sillar or rock stratum, the effect of gunite concrete panel is to reinforce country rock, prevents sillar from removing or falling, enhances
The anti-seepage effect in river, enhances the impact resistance in river, and protection system ensure that the safety of structure and the smooth construction of engineering.
5 or less the rock shoulder in river makees shotcrete spats 3.Shotcrete spats 3 includes anchor pole 7 and gunite concrete panel 6, and injection is mixed
Solidifying soil panel 6 spray is layered on rock shoulder 5 hereinafter, being laid with bar-mat reinforcement between gunite concrete panel 6 and ground contact surface, and anchor pole 7 passes through brill
Hole is embedded in inside rock mass, and the anchor pole 7 of shotcrete spats 3 increases the frictional force between joint plane and rock stratum, enhances the steady of sillar or rock stratum
Qualitative, the effect in gunite concrete face 6 is to reinforce country rock, and bar-mat reinforcement prevents sillar from removing or falling.
Embodiment 2
Further include following technical scheme in addition to the technical solution of embodiment 1：
Diagonal brace double-row pile 1 includes preceding campshed 8 and rear campshed 9, is arranged in 5 outside of rock shoulder, and rear campshed 9 need to enter rock 2m, carry out
Inner support, it is ensured that design brace pre axial force.Preceding campshed 8 and rear campshed 9 are deposited reinforced concrete pile, and the height of rear campshed 9 is higher than
The height of preceding campshed 8,8 top of preceding campshed are equipped with preceding Guan Liang 10, and 9 top of rear campshed is equipped with rear Guan Liang 11, and 8 top of preceding campshed is horizontal
It is provided with the linking beam 12 being connect with rear campshed 9, raker beam 13 is equipped between 9 stake top of 8 stake top of preceding campshed and rear campshed, diagonal brace is double
The hole 14 of reeving of setting perforation on the preceding campshed 8 and rear campshed 9 of campshed 1, the drilling 15 and hole of reeving that the peripheral ground in river 4 opens up
14 unicom are in a straight line, and anchor cable spats 2 can increase the stabilization of diagonal brace double-row pile cantilever segment through reeve hole 14 and the drilling 15
Property, displacement at pile top is reduced, while the reliability that stake is connect with Guan Liang can also be improved, campshed becomes bending component before making, and improves
The bend-carrying capacity of preceding campshed.Hole 14 reeve using DNl60 steel pipe indwellings, thickness of steel pipe 5mm, column beam muscle should be around steel pipe, such as
It cuts off to increase and helps dowel.It is stayed on wall simultaneously and sets PVC-U, DN200 drain holes.Notice that unwrapping wire positions when construction, strictly
Control box out position and angle.
Preceding campshed 8 around river setting forms front-seat pile body group, and the rear campshed 9 around river setting forms heel row pile body
Group forms reinforcing area, is soil mass consolidation 16 in reinforcing area, enhances double-row pile between front-seat pile body group and heel row pile body group
Intensity is overally supported, ensures the firm of river spats structure, the landslide for preventing river is destroyed by rush of water, and is eliminated safe hidden trouble.
Embodiment 3
Further include following technical scheme in addition to the technical solution of embodiment 2：
Fig. 3 is the structural schematic diagram of the anchor cable spats of the utility model；Fig. 4 is the A-A sectional views of Fig. 3；Fig. 5 is Fig. 3
B-B sectional views；Anchor cable spats includes locking anchorage 17 and anchor cable 18, and locking anchorage 17 is arranged outside diagonal brace campshed 1, and anchor cable 18 passes through
It wears diagonal brace double-row pile 1 and is anchored in the ground in river 4, anchor cable 18 is prestressed anchor Cable Structure, needs tensioning and locking construction
Processing, tensioning are carried out when anchoring section intensity is more than 15MPa and is not less than the 75% of design strength grade, in order to reduce neighbouring anchor
The stress influence of rope, and construction speed is not influenced, using " jumping a method ", i.e., the method for drawing 1 every 2.Before formal tensioning, design should be taken
The 20% of pulling force Nt takes 160kN to carry out pre- tensioning 2 times to anchor cable, keeps each location contacts close, and anchor cable is close with soil layer, generates
Preliminary shearing.Hierarchical loading circulation stretch-draw is taken in formal tensioning, stablizes 3min after every grade of load, be stretched to 880kN and hold lotus 5min without
After variation, it is offloaded to locking load 500kN and carries out locking operation.Anchor cable 18 is made of more underrelaxation steel strand wires 24, steel strand wires
Strength standard value fptkThe design withdrawal resistance of=1860MPa, single anchor cable 18 are 800kN, the design anchor force 50kN/ of anchored end
M, intensity is big, is respectively provided with antirust coat outside more underrelaxation steel strand wires, plays the role of antirust.
Anchor cable 18 divides for free segment 19 and anchoring section 20, in the boundary of free segment 19 and anchoring section 20 setting only slurry sealing
Device 21, and there is good sealing performance, convenient for control segmenting slip casting, free segment 19 is protected using the smooth casing 22 of housing,
Anchoring section 20 is protected using housing corrugated bushing 23, and setting slip casting casing 25, conveniently exists in smooth casing 22 and corrugated bushing 23
In free segment 19 and 20 slip casting of anchoring section, it is easy to accomplish, slip casting is evenly distributed.
Only slurry sealing device 21 uses hermetic bag, and has good sealing performance, and hermetic bag both ends lashing is in anchor
Suo Shang, it is easily operated, it should at least be stayed there are one slurry-inlet valve on the slip casting casing 25 of hermetic bag package, facilitate control slip casting.
It is provided with isolation mount 26 between corrugated bushing 23 and drilling 15, slip casting set is set between corrugated bushing 23 and drilling 15
Pipe, convenient for control slip casting, isolation mount 26 ensures the relative position of corrugated bushing 25 and drilling 15 after slip casting.
26 1400~1600mm of spacing of isolation mount is arranged one, and bearing height is not less than 20mm, ensures slip casting postwave
The relative position of line casing 25 and drilling 15, isolation mount 26 is welded with plain bar, simple in structure, is readily produced reality
It is existing.
Underrelaxation steel strand wires 24 are 8, and intensity is big, and locking anchorage 17 uses porous strand tapered anchorage, specially 8 hole OVM
Anchorage facilitates fixed underrelaxation steel strand wires, post-tensioning component thickness can be made to be thinned using it, overcome group anchor system lower prestress mistake
In concentration.
Compared with prior art, structure setting is reasonable, and the integrated support intensity of diagonal brace double-row pile is big, and uses anchor cable spats
It is fixed, ensure that the firm of river spats, the anchor pole of shotcrete spats increase the frictional force between joint plane and rock stratum, enhances sillar or rock
The stability of layer, the effect of gunite concrete panel are to reinforce country rock, prevent sillar from removing or falling, using multistage composite construction
So that the impact resistance in riverbed is strong, enhance the anti-seepage effect in river, solution is provided for the antiseepage in river, the multi-functional demand of flood control
Method, and it is easy for construction.
An example of the utility model is described in detail above, but content is only the preferable reality of the utility model
Example is applied, should not be considered as limiting the scope of the present invention.Equalization made according to the scope of application of this utility model
Variation and improvement etc., should all still belong within the patent covering scope of the utility model.
Claims (10)
1. a kind of ecological protective measures structure, including slope protection works and spats engineering, it is characterised in that more than the low water level in river
Slope protection works, the low water level spats engineering arranged below in river are set；
The slope protection works includes filtering layer, bank protection brick layer and ecology bag layer, and the bank protection brick layer and ecology bag layer are arranged described
On filtering layer, the bank protection brick layer, the ecology bag layer and the spats work are set gradually from Channel slope top to bottom of river channel
Journey；
The spats engineering includes diagonal brace double-row pile, anchor cable spats and shotcrete spats, and the diagonal brace double-row pile is set to rock shoulder
Outside, ground opens up drilling on the outside of the diagonal brace double-row pile, and the anchor cable spats passes through that drill will through the diagonal brace double-row pile
The diagonal brace double-row pile is anchored in ground on the outside of rock shoulder, and the shotcrete spats is set to the rock shoulder portion in river or less.
2. a kind of ecological protective measures structure according to claim 1, it is characterised in that the bank protection brick layer includes mutual
The revetment brick of connection, the revetment brick include brick main body, position-limit foot, locating slot, vegetation growth slot, vegetation growth area, the limit
Position foot is arranged in the quadrangle of the brick main body, and the vegetation growth area is arranged in the brick main body, the inner edge of the position-limit foot
The locating slot is formed with the side wall of the brick main body, the side wall of the brick main body is provided with vegetation growth slot, the position-limit foot
Match with the shape of the locating slot, the area of two position-limit foots is equal to the area of the locating slot；
The vegetation growth area is two, and the vegetation growth area is circle, and the vegetation growth slot is semicircle, the vegetation
Vitellarium is identical with the radius of the vegetation growth slot, and the vegetation growth slot of adjacent revetment brick forms circle.
3. a kind of ecological protective measures structure according to claim 1 or 2, it is characterised in that the ecology bag layer includes phase
The ecology bag to connect, the ecology bag is interior to be arranged filled layer, and the filled layer includes soil horizon and metalling, the soil horizon
It is trapped among outside metalling, the ecology bag includes exterior cover sheets, enhancement layer, the first vegetable layer, internal application of anti-leakage layers, the external guarantor
Sheath, enhancement layer, the first vegetable layer, internal application of anti-leakage layers are arranged from outside to inside successively.
4. a kind of ecological protective measures structure according to claim 3, it is characterised in that the shotcrete spats includes anchor pole
With gunite concrete panel, the gunite concrete panel spray is layered on rock shoulder hereinafter, the gunite concrete panel connects with ground
Bar-mat reinforcement is laid between contacting surface, inside rock shoulder anchor pole as described below is by the embedded rock mass of drilling.
5. according to a kind of any ecological protective measures structure of claim 1,2,4, it is characterised in that the diagonal brace is double
Stake includes preceding campshed and rear campshed, and the height of the rear campshed is higher than the height of the preceding campshed, and the front row stake top end is equipped with
Preceding Guan Liang, heel row stake top end are equipped with rear Guan Liang, and the front row stake top end is horizontally disposed the linking beam being connect with rear campshed, described
It is equipped with raker beam between front-seat stake top and heel row stake top, perforation is set on the preceding pile body of row pile and the rear pile body of row pile
Hole of reeving, the drilling that ground opens up on the outside of the diagonal brace double-row pile and the hole unicom of reeving, the anchor cable spats run through institute
State reeve hole and drilling.
6. a kind of ecological protective measures structure according to claim 5, it is characterised in that around multiple institutes of river setting
The preceding front-seat pile body group of campshed composition is stated, multiple rear campsheds around river setting form heel row pile body group, front-seat pile body group
Reinforcing area is formed between heel row pile body group, is soil mass consolidation in reinforcing area.
7. a kind of ecological protective measures structure according to claim 6, it is characterised in that the anchor cable spats includes locking
Anchorage and anchor cable, the locking anchorage are arranged outside the diagonal brace double-row pile, and the anchor cable is through diagonal brace double-row pile and is anchored in
In the ground in the river, the anchor cable is prestressed anchor Cable Structure, is made of more underrelaxation steel strand wires, the more low pines
It is respectively provided with antirust coat outside relaxation steel strand wires.
8. a kind of ecological protective measures structure according to claim 7, it is characterised in that the anchor cable be divided into free segment and
Anchoring section, in the setting of the boundary of the free segment and the anchoring section, only slurry sealing device, the free segment part use outer
Smooth casing pipe protection is covered, the anchoring section is protected using housing corrugated bushing, is set in the smooth casing and the corrugated bushing
Set slip casting casing.
9. a kind of ecological protective measures structure according to claim 8, it is characterised in that the only slurry sealing device uses
Hermetic bag, hermetic bag both ends lashing, at least should be there are on the slip casting casing that is wrapped up by the hermetic bag on anchor cable
One slurry-inlet valve.
10. a kind of ecological protective measures structure according to claim 8 or claim 9, it is characterised in that the corrugated bushing and brill
Isolation mount is provided between hole.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721601867.8U CN207714263U (en) | 2017-11-27 | 2017-11-27 | A kind of ecological protective measures structure |
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| CN201721601867.8U CN207714263U (en) | 2017-11-27 | 2017-11-27 | A kind of ecological protective measures structure |
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| Country | Link |
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Inventor after: Peng Rongmei Inventor after: Han Likun Inventor after: Zhai Liqing Inventor after: Feng Yanqin Inventor after: Hu Chuntao Inventor after: Cui Fuzhan Inventor after: Yang Fang Inventor after: Zhang Fengmao Inventor after: Xing Yanbo Inventor after: Li Shuanguo Inventor after: Peng Chao Inventor after: Gao Xiang Inventor before: Peng Rongmei Inventor before: Han Likun Inventor before: Zhai Liqing Inventor before: Feng Yanqin Inventor before: Hu Chuntao Inventor before: Cui Fuzhan Inventor before: Yang Fang Inventor before: Zhang Fengmao Inventor before: Xing Yanbo Inventor before: Li Shuanguo Inventor before: Peng Chao Inventor before: Gao Xiang |
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