CN209368866U - Abrupt slope road structure - Google Patents
Abrupt slope road structure Download PDFInfo
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- CN209368866U CN209368866U CN201821759552.0U CN201821759552U CN209368866U CN 209368866 U CN209368866 U CN 209368866U CN 201821759552 U CN201821759552 U CN 201821759552U CN 209368866 U CN209368866 U CN 209368866U
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Abstract
The utility model relates to abrupt slope building fields, provide a kind of abrupt slope road structure, including balance weight retaining wall and Duo Gen Cantilever Beams；Balance weight retaining wall is arranged at the road shoulder of upper width subgrade and pavement on abrupt slope；More Cantilever Beams are sequentially arranged on the outside of the wall of balance weight retaining wall；And one end of Cantilever Beams and the wall of balance weight retaining wall connect, the other end is connect using support construction with abrupt slope slopes；Prefabricated board is laid on the upper surface of Cantilever Beams, and lower width subgrade and pavement is equipped in the plate face of prefabricated board.Abrupt slope road structure provided by the utility model is by being arranged balance weight retaining wall between upper width subgrade and pavement and lower width subgrade and pavement, and width subgrade and pavement is set on the prefabricated board upper berth supported using diagonal brace and Cantilever Beams, the abrupt slope road structure is allowed to reduce the retaining structure filled out excavation, while reducing lower width subgrade and pavement in construction.
Description
Technical field
The utility model relates to abrupt slope building fields, more particularly to a kind of abrupt slope road structure.
Background technique
Existing steep slope region, roadway travel are substantially divided to two kinds of the forms of road cross section: one is parallel contour two-way streets
Road form of fracture, one is not contour two-way framing road section forms parallel, the former will appear inside cut slope height, excavation
It measures situation big and that amount of fill big side slope of embankment in outside is high to occur, High Cut Slope traditional at present is often using high gravity type gear
The structure types such as cob wall, pile plate wall, but it is constrained to its supporting and retaining system ability, often retaining wall highest does not exceed 8m, pile plate wall
10m generally is not exceeded, even in the case where Prestressing anchor cable, pile plate wall is not more than 15m, and lower block uses weight
Formula retaining wall is generally not more than 10m, then it is high if need staking base beam or cushion cap, or use pile plate wall, or even need
It changes type of bridge into, nonetheless, can also greatly increase the area and expense of earth clearance, increase the degree of soil erosion
And it generates landslide and slips the geological disaster risk collapsed；If land area can be effectively reduced using the latter, reduce soil erosion and
The risk of Landslide Hazards needs to increase the retaining between framing road up and down, though it is more contour than parallel on the whole
Road section form have an obvious advantage, but construction investment scale may not reduce or reduce it is not obvious enough.
It is limited to the closing slope ability of current retaining structure form, even using framing not contour form of fracture parallel,
In terms of reducing sign and tearing open, reduce investment, reduce soil erosion and landslide geological disaster risk, still aobvious scarce capacity.
Utility model content
(1) technical problems to be solved
The purpose of the utility model is to provide a kind of abrupt slope road structures, it is intended at least the solution prior art or the relevant technologies
Present in one of technical problem.
(2) technical solution
In order to solve the above-mentioned technical problem, the utility model provides a kind of abrupt slope road structure, comprising: balance weight retaining wall
With more Cantilever Beams；The balance weight retaining wall is arranged at the road shoulder of upper width subgrade and pavement on abrupt slope；The more Cantilever Beams
It is sequentially arranged on the outside of the wall of the balance weight retaining wall；And the wall of one end of the Cantilever Beams and the balance weight retaining wall
Body connection, the other end are connect using support construction with abrupt slope slopes；Prefabricated board is laid on the upper surface of the Cantilever Beams, and described
Lower width subgrade and pavement is equipped in the plate face of prefabricated board.
Wherein, the abrupt slope road structure, further includes: prestress anchorage cable；It is opened in the wall of the balance weight retaining wall
Equipped with the first anchor hole, first anchor hole runs through the wall of the balance weight retaining wall；Second is offered in the abrupt slope slopes
Anchor hole, second anchor hole is blind hole, and first anchor hole and second anchor hole are on same straight line；The prestressing force
The anchored end of anchor cable is fixed in second anchor hole, and the other end passes through first anchor hole, and the prestress anchorage cable is another
One end is anchored at one end that second anchor hole is on the outside of wall.
Wherein, the abrupt slope road structure, further includes: the more pile foundations being vertically arranged on the abrupt slope；The stake
Length direction successively arranged for interval of the base along the abrupt slope；The wall bottom at the top of the pile foundation and the balance weight retaining wall
Connection.
Wherein, the support construction is diagonal brace；The diagonal brace is tilted upward to the side far from the abrupt slope slope surface.
Wherein, the support construction is pier stud；The pier stud is vertical with the Cantilever Beams to be connect.
Wherein, first anchor hole is in the wall top of the balance weight retaining wall；And second anchor hole is located at institute
The height for stating one end in abrupt slope is in the height of wall lateral ends lower than first anchor hole.
Wherein, the angle locating for second anchor hole and first anchor hole between straight line and horizontal plane is 10 ° -20 °；
And/or second anchor hole aperture and the aperture of first anchor hole be 100-120mm.
Wherein, the junction between the two adjacent sections wall of the balance weight retaining wall is equipped with expansion joint, the expansion joint
In be filled with elastic water-proofing material.
(3) beneficial effect
A kind of abrupt slope road structure provided by the utility model, by between upper width subgrade and pavement and lower width subgrade and pavement
Balance weight retaining wall is set, and lower width subgrade and pavement is arranged on the prefabricated board supported using diagonal brace and Cantilever Beams, so that
The abrupt slope road structure can be reduced in construction using parallel not contour framing road and be filled out excavation, and improve road knot
Under the premise of structure supporting and retaining system ability, reduce the retaining structure of lower width subgrade and pavement.
Detailed description of the invention
Fig. 1 is the cross-sectional configuration schematic diagram of a preferred embodiment of abrupt slope road structure provided by the utility model；
Fig. 2 is the top view of abrupt slope road structure shown in FIG. 1；
Fig. 3 is the cross-sectional configuration signal of another preferred embodiment of abrupt slope road structure provided by the utility model
Figure；
Fig. 4 is the cross-sectional configuration signal of another preferred embodiment of abrupt slope road structure provided by the utility model
Figure；
Fig. 5 is the cross-sectional configuration signal of another preferred embodiment of abrupt slope road structure provided by the utility model
Figure；
In figure, the abrupt slope 1- ground line；2- balance weight retaining wall；3- Cantilever Beams；41- diagonal brace；42- pier stud；The upper width roadbed of 5-
Road surface；6- prefabricated board；7- prestress anchorage cable；8- pile foundation.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Example is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure
Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model
System.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.The meaning of " plurality " is at least two, such as two in the description of the present invention,
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection is also possible to be electrically connected or can communicate each other；It can be directly connected, the indirect phase of intermediary can also be passed through
Even, the connection inside two elements or the interaction relationship of two elements be can be, unless otherwise restricted clearly.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
The road of steep slope region produces half moat, half dike cross-sectional form, if adopting under conditions of parallel contour not framing
With existing upper gear and lower block measure, it is most likely that the predicament for causing gear shield ability inadequate, or even need the shape using midway half-bridge
Formula just can solve, and thus bring that filled soil quality is big, upper lower block scale is big, and land expropriation cost and retaining expense are substantially increased
Unfavorable situation, simultaneously because the brush slope gradient is excessively high to be led to large area vegetation deterioration and large area soil erosion is caused even to be come down
The consequence of equal unfavorable geologies disaster.
Fig. 1 shows a preferred embodiment of the utility model abrupt slope road structure, as depicted in figs. 1 and 2, the abrupt slope
Road structure includes: balance weight retaining wall 2 and Duo Gen Cantilever Beams 3；The upper width subgrade and pavement on abrupt slope is arranged in balance weight retaining wall 2
At 5 road shoulder；More Cantilever Beams 3 are sequentially arranged on the outside of the wall of balance weight retaining wall 2；And one end and the weight of Cantilever Beams 3
The wall of formula retaining wall 2 connects, and the other end is connect using support construction with abrupt slope slope surface；Prefabricated board 6 is laid on the Cantilever Beams 3
Upper surface, and lower width subgrade and pavement is equipped in the plate face of prefabricated board 6.
Specifically, for steep slope region using parallel not contour framing the forms of road cross section, i.e. steep slope region includes the road Shang Fu
Road and lower width road.The balance weight retaining wall 2 on the road shoulder of the upper width subgrade and pavement on abrupt slope, for example, first setting weight on abrupt slope
Excavate 2 operation platform of balance weight retaining wall in the position of formula retaining wall 2；That is, the predeterminated position on abrupt slope ground line 1 is excavated and to be formed
Operation platform.Then balance weight retaining wall 2 is applied at the platform.It, can be steep after completing the applying of balance weight retaining wall 2
The corresponding position on slope applies support construction, for example, one end of support construction is connect with abrupt slope slope surface, the corresponding other end with
Cantilever Beams are connected far from one end of abrupt slope slope surface；It is connected for example, above-mentioned connection type is all made of armored concrete.Then, i.e.,
It can be laid with prefabricated board 6 on Cantilever Beams 3, and overlap joint will be carried out between each prefabricated board 6 and stay seam, be laid with so that prefabricated board 6 is formed
The basis of lower width subgrade and pavement.Later, so that it may it is laid with upper width subgrade and pavement 5 in the wall top of balance weight retaining wall 2, and,
Implement lower width subgrade and pavement on prefabricated board 6.
In the present embodiment, by the way that balance weight retaining wall 2 is arranged between upper width subgrade and pavement 5 and lower width subgrade and pavement,
And lower width subgrade and pavement is arranged on the prefabricated board 6 supported using support construction and Cantilever Beams 3, so that the abrupt slope road knot
Structure can be reduced in construction using parallel not contour framing road and be filled out excavation, and improve road structure supporting and retaining system ability
Under the premise of, reduce the retaining structure of lower width subgrade and pavement.
Further, in conjunction with Fig. 1, support construction is diagonal brace 41, and diagonal brace 41 is tilted to the side far from the abrupt slope slope surface 1
Upwards.For example, applying multiple diagonal braces 41 tilted upward to the side far from abrupt slope slope surface on abrupt slope；For example, on abrupt slope
It constructs according to the sequence of the reinforcing bar of binding diagonal brace 41, formwork erection and casting concrete in the place for applying diagonal brace 41；That is diagonal brace 41
Inclined upward to the left, and the lower section of balance weight retaining wall 2 is arranged in diagonal brace 41.Later, Cantilever Beams 3, example are bound on diagonal brace 41
Such as, Cantilever Beams 3 are arranged horizontally on diagonal brace 41；For example, the free end of one end of Cantilever Beams 3 and diagonal brace 41 can be used reinforcing bar
Concrete is connected；For example, the other end of Cantilever Beams 3 and the wall of balance weight retaining wall 2 can also be consolidated using armored concrete
Even.For example, the angle between diagonal brace and Cantilever Beams is 30 ° -80 °.Allow diagonal brace preferably to support Cantilever Beams, improves road
The stability of structure.
Further, in conjunction with Fig. 3, support construction is pier stud 42；The pier stud 42 is vertical with the Cantilever Beams to be connect.Example
Such as, pier stud 42 is applied according to machine drilling-assembling reinforcement-formwork erection-casting concrete sequence in the slope surface of abrupt slope.
Further, abrupt slope road structure, further includes: prestress anchorage cable 7；It is opened up in the wall of balance weight retaining wall 2
There is the first anchor hole, the first anchor hole runs through the wall of the balance weight retaining wall；The second anchor hole, the second anchor are offered in the slopes of abrupt slope
Hole is blind hole, and the first anchor hole and the second anchor hole are on same straight line；The anchored end of prestress anchorage cable 7 is fixed on the second anchor hole
Interior, other end anchor passes through the second anchor hole；And the other end of prestress anchorage cable 7 is anchored at one that the second anchor hole is on the outside of wall
End.
Wherein, prestress anchorage cable 7 refers to the strand bracket for taking prestressing method anchorage cable anchoring inside rock mass, is used for
Reinforcing side slope.Anchor cable is anchored into rock mass by anchor head by the hole of rock mass weak structural face, and gliding mass and firm ground are linked togather,
To change the stress state of slope rock mass, the globality and intensity of side slope unstable rock mass are improved.
Specifically, the first anchor of prestress anchorage cable 7 can be reserved in wall when applying balance weight retaining wall 2
Hole, and the second anchor hole is opened up in the corresponding position on abrupt slope, and make the center line of the first anchor hole and the centerline of the second anchor hole
In on same straight line.For example, can be applied when the wall of balance weight retaining wall 2 carries on the back backfill to the aperture of the second anchor hole
The anchored end of prestress anchorage cable 7；The anchored end of prestress anchorage cable 7 is inserted into the second anchor hole, and by the anchor of prestress anchorage cable 7
Fixed end is anchored in the second anchor hole, for example, the anchored end of prestress anchorage cable 7 and the second anchor hole are carried out anchor using cement mortar
Gu.Continue to banket after the cement mortar of the anchored end reaches set strength, then to the wall back of balance weight retaining wall 2, with
And the free end of prestress anchorage cable 7 is passed through into the first anchor hole, for example, at can be using pitch cotton winding package prestress anchorage cable
In the intracorporal part of the wall of balance weight retaining wall, the antirust, anti-corrosive processing of prestress anchorage cable is carried out.And to prestress anchorage cable 7
Be pierced by one end that the first anchor hole is located on the outside of the wall of balance weight retaining wall 2 and carry out tensioning step by step, i.e., to prestress anchorage cable 7 from
Tensioning step by step is carried out by holding, after the pulling capacity of design to be achieved, locking is carried out to the free end of prestress anchorage cable 7, i.e., will
The other end of prestress anchorage cable 7 is anchored at one end that the first anchor hole is located on the outside of the wall of balance weight retaining wall 2, for example, using
Cement mortar anchors the anchored end, and after the cement mortar of the anchored end reaches set strength, it is extra to wipe out
7 part of prestress anchorage cable.
In the present embodiment, by the way that prestress anchorage cable 7 is arranged in balance weight retaining wall 2 and abrupt slope, weight can be improved
The resistance to capsizing of formula retaining wall 2, and then improve the overall stability of balance weight retaining wall 2；And it can be kept off by load retaining wall
The wall of cob wall 2 bankets, diagonal brace 41 and prestress anchorage cable 7 balance Cantilever Beams 3 and 6 load of prefabricated board, pedestrian's load thereon
With non-motor vehicle load, the supporting and retaining system ability of abrupt slope road is improved.
Further, in conjunction with Fig. 4 and Fig. 5, the abrupt slope road structure, further includes: the more stakes being vertically arranged on abrupt slope
Base；Length direction successively arranged for interval of the pile foundation along abrupt slope；The top of pile foundation and the wall bottom of balance weight retaining wall connect.Its
In, the deep foundation being made of the pile framing (abbreviation cushion cap) of stake and connection stake top, or the single-pile foundation being connect by column with pile foundation, letter
Claim pile foundation.If pile body is all embedded in soil, cushion cap bottom surface is contacted with the soil body, then referred to as embedded footing on piles, low capped pile foundation；If pile body top is exposed
Ground and cushion cap bottom is located at ground or more, then referred to as elevated footing on piles.
Specifically, Pile Installation Platform is excavated in the position that pile foundation is set on abrupt slope, implements pile foundation later；For example, adjacent
Spacing 5m between two pile foundations.Later, for example, the steel reinforcement cage part of cushion cap can be implemented by every mono- section of 10m；Formwork later, one
Body pours the concrete of cushion cap and the wall concrete of balance weight retaining wall 2, and has reserved drain hole by design.For example, can
Being set as the wall strength grade of concrete of balance weight retaining wall not less than C30, the junction between every adjacent two wall is set
Expansion joint, the width at expansion joint can be 20mm-30mm, and pitch hemp cut or other elastic water-proofs can be clogged in the seam of expansion joint
Material, filling depth can be not less than 150mm.
Further, the first anchor hole is located at the wall top for being partially in balance weight retaining wall 2 of balance weight retaining wall 2；
And second anchor hole be located at the height that the height of one end in abrupt slope is located at the wall lateral ends of balance weight retaining wall 2 lower than the first anchor hole
Degree.
First anchor hole is arranged in the wall top of balance weight retaining wall 2, allows prestress anchorage cable 7 through load retaining wall
The wall top of retaining wall 2；And the height that the second anchor hole is located at one end in abrupt slope is set below the first anchor hole and is located at load retaining wall
The height of the wall lateral ends of retaining wall 2, i.e. the first anchor hole and the second anchor hole arrange diagonally downward to close to the side on abrupt slope,
It arranges that prestress anchorage cable 7 also diagonally downward to the side close to abrupt slope, tensioning step by step is being carried out to prestress anchorage cable 7
When, prestress anchorage cable 7 can be allowed preferably to improve the resistance to capsizing of balance weight retaining wall 2.
Further, the angle locating for the second anchor hole and the first anchor hole between straight line and horizontal plane is 10 ° -20 °；With/
Or, the aperture of the second anchor hole and the aperture of the first anchor hole are 100-120mm.By straight line locating for the first anchor hole and the second anchor hole
Angle between horizontal plane is set as 10 ° -20 °, so that the prestress anchorage cable 7 being through in the first anchor hole and the second anchor hole and level
Angle between face is also 10 ° -20 °, and in the angular range, prestress anchorage cable 7 can be played balance weight retaining wall 2 preferably
Firm effect so that balance weight retaining wall 2 have preferable resistance to capsizing.And by the first anchor hole and the second anchor hole
Aperture is set as 100-120mm, so that the aperture of anchor hole and the diameter of prestress anchorage cable 7 match, for example, the first anchor hole and second
The aperture of anchor hole is 110mm.
In addition, the depth of the first anchor hole and the second anchor hole can be depending on calculating required anchor force.For example, load retaining wall
The wall of retaining wall 2 can be made of armored concrete.Diagonal brace 41 can be made of armored concrete.Pier stud 42 can be adopted
It is made of armored concrete.Cantilever Beams 3 can be made of armored concrete, and the reinforcing bar insertion load retaining wall gear in Cantilever Beams 3
In the wall of cob wall 2, the stress that Cantilever Beams 3 can be improved is horizontal.Wherein, armored concrete is often called reinforcing bar for short in engineering
Concrete；Refer to by be added in concrete a kind of combined material that steel mesh, steel plate or fiber and are constituted work together therewith come
Improve a kind of combined material of Concrete Mechanical Properties.
A kind of abrupt slope road structure provided by the embodiment of the utility model, it is excellent compared with existing steep slope region road structure
Gesture is significant:
1, compared with steep slope region parallel contour road structure form: significantly reducing cut slope height, reduce bottom stop
Mould and difficulty reduce bridge accounting, and advantage is significant in terms of the cubic metre of earth and stone, gear shield quantity of masonry, sign land scale；
2, compared with not contour double lower block road structure forms parallel: width highway cut slope height, digging in significant decrease
Side's amount and supporting and retaining system scale, save lower width road supporting and retaining system measure, reduce bridge accounting, in the cubic metre of earth and stone, gear shield quantity of masonry, advise to requisition
Advantage is significant in terms of mould；
3, compared with midway half-bridge road structure form: advantage is more obvious, directly reduction bridge accounting, significantly reduces and throws
Provide cost.
The construction method of above-mentioned abrupt slope road structure, comprising: the predeterminated position on abrupt slope applies balance weight retaining wall,
When applying balance weight retaining wall, the first anchor hole through wall is reserved in the wall of balance weight retaining wall；And on abrupt slope
The second anchor hole is opened up, the second anchor hole is blind hole, and the second anchor hole and the first anchor hole are on same straight line；Load retaining wall gear to be achieved
After the concrete setting phase in cob wall, the wall back region of balance weight retaining wall is banketed to the aperture of the second anchor hole；It will answer in advance
One end of power anchor cable is anchored in the second anchor hole, is reached to one end of prestress anchorage cable and the cement mortar at the anchoring of the second anchor hole
To after set strength；Again the wall back region of balance weight retaining wall is continued to banket, until banketing to the hole of the first anchor hole
At mouthful；The other end of prestress anchorage cable is passed through into the first anchor hole；And the first anchor hole is pierced by prestress anchorage cable and is located at load retaining wall gear
One end on the outside of the wall of cob wall carries out tensioning；After prestress anchorage cable reaches setting pulling capacity, anchor pier is applied；And by prestressing force
Anchor cable is pierced by one end on the outside of the wall of balance weight retaining wall and is locked at anchor pier；It is located under balance weight retaining wall on abrupt slope
Square region applies multiple support constructions；And Cantilever Beams are applied on the support structure；And one end of Cantilever Beams and load retaining wall are kept off
The wall of cob wall connects, and the other end and support construction are connected far from the one end on abrupt slope；Prefabricated board is laid on Cantilever Beams；In weight
The wall top of formula retaining wall applies width subgrade and pavement, and lower width subgrade and pavement is applied on prefabricated board.
Specifically, the construction that the predeterminated position excavation balance weight retaining wall 2 of balance weight retaining wall 2 is first arranged on abrupt slope is flat
Platform；That is, the predeterminated position in abrupt slope slope surface 1 excavates and to form operation platform.Then, it is put on the operation platform according to measurement
The sequence of the side bundle-wall concreting-wall concrete curing of line-foundation excavation-template installation-wall reinforcing bar and demoulding into
Row construction, i.e., apply balance weight retaining wall 2 at the operation platform.First can have been reserved when applying balance weight retaining wall 2
Anchor hole, and corresponding position on abrupt slope open up the second anchor hole, and are in the first anchor hole and the second anchor hole on same straight line；
And rock slag in the first anchor hole and the second anchor hole removed using high pressure air pressure gun it is clean, temporarily using stopple clog the first anchor hole and
Second anchor hole.
Balance weight retaining wall 2 to be applied reaches the concrete setting phase, for example, balance weight retaining wall 2 meets no less than 28
It concrete setting phase, after reaching intensity requirement, start placement in layers balance weight retaining wall 2 wall back backfill region and
Loaded filter etc..When banketing to the aperture of the first anchor hole, start the anchored end for applying prestress anchorage cable 7, i.e., by prestressed anchor
One end of rope 7 is inserted into the first anchor hole, and one end of prestress anchorage cable 7 and the first anchor hole are anchored；For example, using cement mortar
One end of prestress anchorage cable 7 and the first anchor hole are anchored；To the cement mortar in first anchor hole by no less than 28 days
Setting time reach set strength after, then fill wall back region remainder to the aperture of the second anchor hole at.And it will answer in advance
The other end of power anchor cable 7 passes through the second anchor hole, i.e. the other end of prestress anchorage cable 7 is placed through the wall of balance weight retaining wall 2
The second partial anchor hole；And to prestress anchorage cable 7 be pierced by one end that the second anchor hole is located on the outside of the wall of balance weight retaining wall into
Row tensioning step by step, i.e., carry out tensioning step by step to the free end of prestress anchorage cable 7；Reach the drawing of design to prestress anchorage cable 7
After pull out force (that is, setting pulling capacity), anchor is applied near one end on the outside of the wall that the second anchor hole is located at balance weight retaining wall 2
Pier, and the free end of prestress anchorage cable 7 is locked at the anchor pier, after the cement mortar at anchor pier reaches set strength, cut
Except remaining anchor cable part.
Later, the lower zone on abrupt slope positioned at balance weight retaining wall 2 applies multiple support constructions；For example, the support
Structure is multiple diagonal braces 41, and length direction of the diagonal brace 41 along abrupt slope is sequentially arranged；For example, diagonal brace 41 can be to far from load retaining wall
The direction of 2 side of retaining wall tilts upwards；And one end of diagonal brace 41 is connect with abrupt slope ground line 1.For example, binding diagonal brace
41 reinforcing bar founds film, casting concrete etc.；Then, Cantilever Beams 3 can be applied on diagonal brace；For example, the steel of binding Cantilever Beams 3
Muscle founds film, casting concrete etc..For example, Cantilever Beams 3 are horizontally set on diagonal brace 41, and by one end of Cantilever Beams 3 and tiltedly
The upper end connection of support 41, the other end of Cantilever Beams 3 are connect with the wall of balance weight retaining wall 2；For example, above-mentioned connection type is equal
It can be connected using armored concrete.Certainly, which may be multiple pier studs 42；For example, one end of pier stud 42
It protrudes into abrupt slope, is connect for example, the other end of pier stud 42 is vertical with Cantilever Beams.For example, vertical according to machine drilling-assembling reinforcement-
Mould-casting concrete sequence applies pier stud 42.
The demoulding after concrete strength entirely reaches 28 day age, layering apply wall back loaded filter and fill stratum compacting, directly
To the design depth of fill.Then, it can be laid with prefabricated board 6 on Cantilever Beams 3, and overlap joint will be carried out between each prefabricated board 6 and stayed
Seam, so that prefabricated board 6 forms the basis for being laid with lower width subgrade and pavement.Later, so that it may be laid in the wall top of balance weight retaining wall 2
Upper width subgrade and pavement 5, and, width subgrade and pavement under implementing on prefabricated board 6.In addition, applying lower width roadbed road on prefabricated board 6
When face, pavement structure interlayer reserves structural joint.
Further, further include the steps that applying pile foundation before applying balance weight retaining wall: being located at load retaining wall earth-retaining
The underface region of wall applies multiple stakes；Length direction successively arranged for interval of the stake along abrupt slope；Implement pile framing at the top of stake,
Integration pours the concrete of the concrete of pile framing and the wall of balance weight retaining wall.Specifically, pile foundation is set on abrupt slope
Pile Installation Platform is excavated in position, implements pile foundation later；For example, the spacing 5m between two neighboring stake.It later, for example, can
To implement the steel reinforcement cage part of pile framing by every mono- section of 10m；Formwork later, integration pour the concrete and load retaining wall of pile framing
The wall concrete of retaining wall 2, and drain hole has been reserved by design.For example, can be by the wall concrete of balance weight retaining wall
Strength grade is set as not less than C30, and the junction between every adjacent two wall sets expansion joint, and the width at expansion joint can be
20mm-30mm can clog pitch hemp cut or other elastic water-proofing material in the seam of expansion joint, and filling depth can be not less than
150mm。
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (8)
1. a kind of abrupt slope road structure characterized by comprising balance weight retaining wall and Duo Gen Cantilever Beams；
The balance weight retaining wall is arranged at the road shoulder of upper width subgrade and pavement on abrupt slope；
The more Cantilever Beams are sequentially arranged on the outside of the wall of the balance weight retaining wall；And one end and the institute of the Cantilever Beams
The wall connection of balance weight retaining wall is stated, the other end is connect using support construction with abrupt slope slopes；
Prefabricated board is laid on the upper surface of the Cantilever Beams, and lower width subgrade and pavement is equipped in the plate face of the prefabricated board.
2. abrupt slope road structure according to claim 1, which is characterized in that further include: prestress anchorage cable；The load retaining wall
The first anchor hole is offered in the wall of retaining wall, first anchor hole runs through the wall of the balance weight retaining wall；The abrupt slope
The second anchor hole is offered in slopes, second anchor hole is blind hole, and first anchor hole is in same with second anchor hole
On straight line；
The anchored end of the prestress anchorage cable is fixed in second anchor hole, and the other end passes through first anchor hole, and described
The other end of prestress anchorage cable is anchored at one end that second anchor hole is on the outside of wall.
3. abrupt slope road structure according to claim 1, which is characterized in that further include: more be vertically arranged in it is described steep
Pile foundation on slope；Length direction successively arranged for interval of the pile foundation along the abrupt slope；
The top of the pile foundation is connect with the wall bottom of the balance weight retaining wall.
4. abrupt slope road structure according to claim 1-3, which is characterized in that the support construction is diagonal brace；
The diagonal brace is tilted upward to the side far from the abrupt slope slope surface.
5. abrupt slope road structure according to claim 1-3, which is characterized in that the support construction is pier stud；
The pier stud is vertical with the Cantilever Beams to be connect.
6. abrupt slope road structure according to claim 2, which is characterized in that first anchor hole is in load retaining wall gear
The wall top of cob wall；And second anchor hole is located at the height of one end in the abrupt slope and is in wall lower than first anchor hole
The height of lateral ends.
7. abrupt slope road structure according to claim 6, which is characterized in that second anchor hole and the first anchor hole institute
Angle between the straight line and horizontal plane at place is 10 ° -20 °；And/or aperture and first anchor hole of second anchor hole
Aperture is 100-120mm.
8. abrupt slope road structure according to claim 1, which is characterized in that the two adjacent sections wall of the balance weight retaining wall
Junction between body is equipped with expansion joint, is filled with elastic water-proofing material in the expansion joint.
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