CN103422409A - Long and steep downgrade energy dissipation deceleration road surface and construction process thereof - Google Patents
Long and steep downgrade energy dissipation deceleration road surface and construction process thereof Download PDFInfo
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Abstract
The invention discloses a long and steep downgrade energy dissipation deceleration road surface and a construction process thereof. A deceleration region I formed by three thermoplastic protruding vibratile mark lines perpendicular to the traveling direction, a deceleration region II formed by 1-3 hump-type bitumen concrete base deceleration bands perpendicular to the traveling direction and a deceleration region III formed by 1-2 sections of deceleration road studs are arranged in the traveling direction of the energy dissipation deceleration road surface in sequence. The construction process of the long and steep downgrade energy dissipation deceleration road surface mainly comprises the steps of road surface pretreatment, mounting road section drawn line, mounting and maintaining deceleration facilities and the like. According to the invention, the deceleration region I mainly plays a role of reminding a driver to decelerate; the deceleration regions II and III mainly play a role of forcibly decelerating, and meanwhile can eliminate the driver's vision fatigue and torpor, as a result, the driver is prevented from immediately accelerating after just deceleration, the purpose of long-distance speed control is realized, the deceleration road surface does not damage vehicles, acceleration facilities are durable, the construction process is simple, and the cost is low.
Description
Technical field
The invention belongs to the means of transportation technical field, a kind of long and steep downgrade energy dissipating deceleration road surface and construction technology thereof are provided.
Background technology
Along with the fast development of communication, China's expressway construction level constantly promotes, and the express highway pavement quality is also become better and better, so the road speed on speedway is also more and more faster, but traffic accident is also more and more.Mountainous area highway particularly, due to the restriction of self geographical conditions, speedway has produced the driving route of a lot of complexity in process of construction, and the complexity of mountain area weather, to express way driving safety, brings huge hidden danger.Mountainous area highway often contains long slope and continuous descending highway section, and the brake failure because excessive velocities and frequently braking cause, cause frequent accidents to occur, and caused serious personal injury and property loss.This type of traffic accident is often sufferd heavy losses, and therefore how to realize the function that speedway is efficient, safe, becomes one of study hotspot of relevant departments.
Correlative study shows the raising along with running velocity, and traffic accident incidence and severity of injuries also increase thereupon, the linear trend increased progressively of the order of severity of accident casualty and speed.Therefore running velocity being controlled in reasonable safe scope, is to improve one of the most effective approach of road safety level.Thermoplastic vibrations graticule and speed-reducing rubber band are two kinds of deceleration facilities that China's speedway is commonly used, yet the dynamics of thermoplastic vibrations graticule forced deceleration is inadequate, not too obvious for the truck speed limit effect on speedway; The speed-reducing rubber band has certain control effect to the speed of a motor vehicle, but its poor durability is not only destroyed road surface but also scrap the hold-down screw carried over afterwards larger to the injury of vehicle during installation.
Therefore, invent a kind of long and steep downgrade energy dissipating deceleration road surface and construction technology thereof that good endurance, control effect are good, be easy to construction and maintenance that possess, for the effective utilization that improves the traffic slow-down facility with the safety of long and steep downgrade road is significant and actual demand.
Summary of the invention
The deficiency existed for above-mentioned prior art, the object of the present invention is to provide a kind of long and steep downgrade energy dissipating deceleration road surface and construction technology thereof, it can not only remind the driver to slow down, and can play the effect of forcing the driver to be slowed down, also can prevent fatigue and numbness on Driver Vision simultaneously, thereby prevent from accelerating immediately again after the driver from just having slowed down, reach the fast purpose of long-time long distance control.
To achieve these goals, the technical solution used in the present invention is: a kind of long and steep downgrade energy dissipating deceleration road surface is characterized in that: by direction of traffic, arrange successively three deceleration zone I that consist of thermoplasticity protrusion-type vibrations graticule perpendicular to direction of traffic, one to three zone II of the deceleration consisted of hump formula bituminous concrete base deceleration strip perpendicular to direction of traffic and one to the two section deceleration that the deceleration railway spike forms zone III.
By technique scheme, described deceleration zone I is 10-15m with the regional II spacing of slowing down, and described deceleration zone II is 10-25m with the regional III spacing of slowing down.
By technique scheme, described thermoplasticity protrusion-type vibrations graticule is banded, and following every vertical width of thermoplasticity protrusion-type vibrations graticule of car direction is 300-600mm, and transverse width is width of roadway, projection piece height is 3-6mm, and adjacent two thermoplasticity protrusion-types vibrations graticule is spaced apart 4-8m.
By technique scheme, adjacent two hump formula bituminous concrete base deceleration strip spacings are 15-25m, following car direction article one hump formula bituminous concrete base deceleration strip high is 20-35mm, vertically width is 50-80mm, second hump formula bituminous concrete base deceleration strip height is 30-40mm, vertically width is 50-80mm, article three, hump formula bituminous concrete base deceleration strip height is 30-40mm, vertically width is 50-80mm, and the transverse width of every hump formula bituminous concrete base deceleration strip is the transverse width on road surface.
By technique scheme, described hump formula bituminous concrete base deceleration strip is banded, and its cross section is the semiellipse type with rounded corner, at hump formula bituminous concrete base deceleration strip upper surface, scribbles the heat molten type reflecting coating.
By technique scheme, described heat molten type reflecting coating along the spraying of width of roadway direction interval, sprays length 0.4-0.6m along every kind of reflecting coating of width of roadway direction by yellowish-white two kinds of colors, the width that the spraying width is hump formula bituminous concrete base deceleration strip.
By technique scheme, the regional III of slowing down consists of one to two section bituminous concrete base deceleration railway spike, every section bituminous concrete base deceleration railway spike is comprised of perpendicular to the deceleration railway spike of direction of traffic many rows, the segment length of every section bituminous concrete base deceleration railway spike is 20-30m, and the spacing of adjacent two sections bituminous concrete base deceleration railway spikes is 10-20m.
By technique scheme, in the III of described deceleration zone, every adjacent two row's deceleration railway spikes adopt Heterogeneous Permutation, adjacent two row's deceleration railway spike spacing 0.45-0.65m, adjacent two the railway spike spacing 0.35-0.5m of every row.
By technique scheme, the deceleration railway spike in the III of described deceleration zone is the spherical arc shape railway spike, and its bottom surface circular diameter is 0.1-0.12m, and height is 0.03-0.04m.
The construction technology on above-mentioned long and steep downgrade energy dissipating deceleration road surface is characterized in that it comprises following steps:
1) road surface pretreatment: the position that the regional I of slowing down and the regional III of slowing down need to be constructed is cleaned, guarantee that road surface does not have impurity and dust, and road surface drying, after adopting compressed air to blow off the railway spike paste position in the regional III of slowing down, with acetone, clean down again. larger recess is repaired smooth with railway spike glue;
2) in the construction section setting-out: finish with line tool the regional arrangement diagram that respectively slows down and serve as a mark on construction section;
3) the regional construction of respectively slowing down:
The construction of the regional I of slowing down: the thermoplasticity protrusion-type vibrations graticule in the regional I of slowing down carries out setting-out with the graticule line drawing machine.
The construction of the regional II of slowing down: the thickness of at first using milling machine along the cloth tagging of the deceleration strip of the deceleration zone II of finishing in step (2), road-surface milling to be gone out to set, with sander, the road surface after milling is polished flat, then remove residue and dust, finally with mulseal, prefabricated hump formula bituminous concrete base deceleration strip is bondd, installs; Install after the time of setting, then adopt the graticule line drawing machine to carry out the spraying of heat molten type reflecting coating.
The construction of the regional III of slowing down: prepare a certain amount of epoxy adhesive, spread upon equably road surface with greasy cutter, again the deceleration railway spike is sticked on and smears the epoxy adhesive place according to the position of setting, then by the place's compacting of deceleration railway spike, make glue just from the railway spike periphery, extrude and get final product.
4) the regional maintenance of respectively slowing down: after step (3) completes, forbid moving above-mentioned deceleration facilities, and, by its maintenance 3-5 hour, can be open to traffic, can suitably increase the curing time of 2-3 hour for overcast and rainy, low temperature bad weather, and can cover and prevent rain drop erosion with plastic sheeting.
Compared with prior art, the obtained beneficial effect of the present invention is:
1,, in the present invention, the regional I of slowing down is mainly to play the effect of reminding the driver to slow down, dilly is also had to certain control effect simultaneously; Regional II and the III of slowing down has been mainly the forced deceleration effect, adopts these two kinds of deceleration facilities can prevent the fatigue and numbness on Driver Vision simultaneously, thereby prevents from accelerating immediately again after the driver from just having slowed down, and reaches the fast purpose of long-time long distance control.
2, the speed of a motor vehicle can be reduced to 33-58% by deceleration of the present invention road surface, thereby play good deceleration effect, improve the safety of driving.
3, the present invention does not hinder car, and preparation is with easy for installation, and cost is cheap, durable in use.
4, the present invention is provided with dissimilar deceleration zone, and not only visual effect is remarkable, and driver's vibratory sensation is strong, and the driver, must forced deceleration in order to guarantee comfortableness and safety.
5, in the present invention, hump formula bituminous concrete base deceleration strip and bituminous concrete base deceleration railway spike all adopt asphalt concrete material to make, and have certain plasticity and pliability, minimum to vehicle damage.
6, the deceleration facilities in the present invention has increased the friction on vehicle and ground, can offset the kinetic energy of a part of vehicle, plays the effect of vehicle self reduction of speed.
7, the deceleration railway spike slowed down in regional III adopts the mode of Heterogeneous Permutation, and that can effectively avoid the driver to have a mind to hides the deceleration railway spike and suddenly beat steering wheel, causes the problem of direction sideslip.
The accompanying drawing explanation
The general arrangement schematic of the embodiment that Fig. 1 is long and steep downgrade energy dissipating deceleration provided by the invention road surface.
The cross sectional representation that Fig. 2 is every thermoplasticity protrusion-type vibrations graticule in the deceleration zone I in Fig. 1.
The cross sectional representation that Fig. 3 is hump formula bituminous concrete base deceleration strip in the deceleration zone II in Fig. 1.
Fig. 4 is the arrangement diagram of deceleration railway spike in the regional III of slowing down.
Cross sectional representation after the deceleration railway spike that Fig. 5 is A place in Fig. 4 amplifies.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
The general arrangement schematic that Fig. 1 is first embodiment provided by the invention, as shown in Figure 1, the deceleration zone II that deceleration zone I that three protrusion-types of the thermoplasticity perpendicular to direction of traffic vibrations graticules form, three formula of the hump perpendicular to direction of traffic bituminous concrete base deceleration strips form and the deceleration zone III consisted of two sections bituminous concrete base deceleration railway spikes are arranged successively by direction of traffic in long and steep downgrade energy dissipating deceleration road surface.Wherein, the long and steep downgrade road surface refers to sustained grade over 6 kilometers, the descending highway section of average gradient more than 3%.
Wherein, the slow down interval L of regional I and the regional II of slowing down
1For 10m, the interval L of the regional II of slowing down and the regional III of slowing down
3For 20m.Thermoplasticity protrusion-type vibrations graticule is banded, follows every vertical width L of thermoplasticity protrusion-type vibrations graticule of car direction
5For 600mm, transverse width is width of roadway, and in every thermoplasticity protrusion-type vibrations graticule, projection piece 1 is 4.5mm with respect to the height h of base part 2, the interval L of adjacent two thermoplasticity protrusion-types vibrations graticule
0For 5m.
As shown in Figure 2, the cross section of hump formula bituminous concrete base deceleration strip is the semiellipse type with rounded corner, scribble the heat molten type reflecting coating at every hump formula bituminous concrete base deceleration strip upper surface, described heat molten type reflecting coating is formed along the spraying of width of roadway direction interval by yellowish-white two kinds of colors.Every section bituminous concrete base deceleration railway spike is comprised of many rows deceleration railway spike, and every two adjacent row's deceleration railway spikes adopt Heterogeneous Permutations, and that can effectively avoid the driver to have a mind to hides the deceleration railway spike and suddenly beat steering wheel, causes the problem of direction sideslip.Wherein, the deceleration railway spike is the spherical arc shape railway spike.
In the regional II of slowing down, by direction of traffic, the high H of article one hump formula bituminous concrete base deceleration strip
1(use H in figure
xMean, wherein x represents which bar hump formula bituminous concrete base slows down) be 30mm, wide W
1(use W in figure
yMean, wherein y represents which bar hump formula bituminous concrete base slows down) be 60mm, second and the 3rd the high H of hump formula pitch deceleration strip
2,H
3For 35mm, wide W
2,W
3For 80mm, adjacent two hump formula deceleration strip interval L
2For 20m.Wherein, every kind of reflecting coating is 0.4m along the spraying length of width of roadway direction.
In the regional III of slowing down, the segment length of two sections bituminous concrete base deceleration railway spikes is respectively 20m, 30m, every section bituminous concrete base deceleration railway spike is comprised of perpendicular to the deceleration railway spike of direction of traffic many rows, every adjacent two row's deceleration railway spikes adopt Heterogeneous Permutation, adjacent two row's deceleration railway spike spacing a are 0.65m, and every row is adjacent, and two railway spike spacing b are 0.5m.Deceleration railway spike diameter D is 100mm, and the whole overhead height of deceleration railway spike is 40mm, two sections deceleration railway spike interval L
4For 20m.
The regional I of slowing down is mainly to play the effect of reminding the driver to slow down, dilly is also had to certain control effect simultaneously; Regional II and the III of slowing down has been mainly the forced deceleration effect, adopts these two kinds of deceleration facilities can prevent the fatigue and numbness on Driver Vision simultaneously, thereby prevents from accelerating immediately again after the driver from just having slowed down, and reaches the fast purpose of long-time long distance control.
By testing on the long and steep downgrade road surface, when the speed of a motor vehicle car that is 120km/h passes through, after the regional I that slows down, the speed of a motor vehicle is reduced to 110km/h, after the regional II that slows down, the speed of a motor vehicle is reduced to 80km/h, after the regional III that slows down, the speed of a motor vehicle is reduced to 50km/h, and the car speed of a motor vehicle has reduced by 58% after by the deceleration road surface.
The regional I of slowing down and the regional II interval L that slows down
1For 12m, the regional II of slowing down and the regional III interval L that slows down
3For 25m.
Slow down in regional I, follow every vertical width L of thermoplasticity protrusion-type vibrations graticule of car direction
5For 400mm, transverse width is width of roadway, and in every thermoplasticity protrusion-type vibrations graticule, the height h of projection piece 1 is 6mm, the interval L of adjacent two thermoplasticity protrusion-types vibrations graticule
0For 8m.
In the regional II of slowing down, by direction of traffic, the high H of article one hump formula bituminous concrete base deceleration strip
1For 20mm, wide W
1For 50mm, the high H of second hump formula pitch deceleration strip
2For 40mm, wide W
2For 80mm, the 3rd the high H of hump formula pitch deceleration strip
3For 30mm, wide W
3For 50mm, adjacent two hump formula deceleration strip interval L
2For 15m.Wherein, every kind of reflecting coating is 0.5m along the spraying length of width of roadway direction.
In the regional III of slowing down, the segment length of two sections bituminous concrete base deceleration railway spikes is 30m, every section bituminous concrete base deceleration railway spike is comprised of perpendicular to the deceleration railway spike of direction of traffic many rows, every adjacent two row's deceleration railway spikes adopt Heterogeneous Permutation, adjacent two row's deceleration railway spike spacing a are 0.5m, and every row is adjacent, and two railway spike spacing b are 0.4m.Deceleration railway spike diameter D is 120mm, and deceleration railway spike height is 40mm, two sections deceleration railway spike interval L
4For 10m.
By testing on the long and steep downgrade road surface, when the speed of a motor vehicle dolly that is 110km/h passes through, after the regional I that slows down, the speed of a motor vehicle drops to 105km/h, and after the regional II that slows down, the speed of a motor vehicle drops to 85km/h, after the regional III that slows down, the speed of a motor vehicle is reduced to 55km/h, finally is down to safe speed, by the little vehicle speed in whole deceleration road surface, has reduced altogether 50%.
Embodiment 3
Deceleration zone I, two deceleration zone II and the one section deceleration zone III that bituminous concrete base deceleration railway spike forms that the formula of the hump perpendicular to direction of traffic bituminous concrete base deceleration strip forms that three protrusion-type of the thermoplasticity perpendicular to direction of traffic vibrations graticules form are arranged by direction of traffic successively in the long and steep downgrade energy dissipating deceleration road surface that embodiment 3 provides.
Wherein, the slow down interval L of regional I and the regional II of slowing down
1For 10m, the interval L of the regional II of slowing down and the regional III of slowing down
3For 10m.
Wherein, in the regional I that slows down, thermoplasticity protrusion-type vibrations graticule is banded, follows every vertical width L of thermoplasticity protrusion-type vibrations graticule of car direction
5Be 600 (300) mm, transverse width is width of roadway, and in every thermoplasticity protrusion-type vibrations graticule, the height h of projection piece 1 is 3mm, the interval L of adjacent two thermoplasticity protrusion-types vibrations graticule
0For 4m.
Wherein, the cross section of hump formula bituminous concrete base deceleration strip is the semiellipse type with rounded corner, scribble the heat molten type reflecting coating at every hump formula bituminous concrete base deceleration strip upper surface, described heat molten type reflecting coating is formed along the spraying of width of roadway direction interval by yellowish-white two kinds of colors.Every section bituminous concrete base deceleration railway spike is comprised of many rows deceleration railway spike, and every two adjacent row's deceleration railway spikes adopt Heterogeneous Permutations, and that can effectively avoid the driver to have a mind to hides the deceleration railway spike and suddenly beat steering wheel, causes the problem of direction sideslip.Wherein, the deceleration railway spike is the spherical arc shape railway spike.
In the regional II of slowing down, by direction of traffic, the high H of article one hump formula bituminous concrete base deceleration strip
1For 35mm, wide W
1For 80mm, the high H of second hump formula pitch deceleration strip
2For 40mm, wide W
2For 80mm, adjacent two hump formula deceleration strip interval L
2For 15m.Wherein, every kind of reflecting coating is 0.6m along the spraying length of width of roadway direction.
In the regional III of slowing down, the segment length of bituminous concrete base deceleration railway spike is 30m, bituminous concrete base deceleration railway spike is comprised of perpendicular to the deceleration railway spike of direction of traffic many rows, every adjacent two row's deceleration railway spikes adopt Heterogeneous Permutation, adjacent two row's deceleration railway spike spacing a are 0.45m, and every row is adjacent, and two railway spike spacing b are 0.5m.Deceleration railway spike diameter D is 120mm, and deceleration railway spike height is 30mm.
By testing on the long and steep downgrade road surface, when the medium truck that average speed is 90km/h passes through this deceleration road surface, after the regional I that slows down, the speed of a motor vehicle has been reduced to 85km/h, after the regional II that slows down, the speed of a motor vehicle is reduced to 65km/h, after the regional III that slows down, the speed of a motor vehicle is reduced to 60km/h, and the speed of a motor vehicle of this process lorry has reduced by 33%.
Embodiment 4
Deceleration zone I, two deceleration zone II and the two sections deceleration zone III that bituminous concrete base deceleration railway spike forms that the formula of the hump perpendicular to direction of traffic bituminous concrete base deceleration strip forms that three protrusion-type of the thermoplasticity perpendicular to direction of traffic vibrations graticules form are arranged by direction of traffic successively in the long and steep downgrade energy dissipating deceleration road surface that embodiment 4 provides.
Wherein, the slow down interval L of regional I and the regional II of slowing down
1For 15m, the interval L of the regional II of slowing down and the regional III of slowing down
3For 25m.
Wherein, in the regional I that slows down, thermoplasticity protrusion-type vibrations graticule is banded, follows every vertical width L of thermoplasticity protrusion-type vibrations graticule of car direction
5For 500mm, transverse width is width of roadway, and in every thermoplasticity protrusion-type vibrations graticule, the height h of projection piece 1 is 6mm, the interval L of adjacent two thermoplasticity protrusion-types vibrations graticule
0For 8m.
Wherein, the cross section of hump formula bituminous concrete base deceleration strip is the semiellipse type with rounded corner, scribble the heat molten type reflecting coating at every hump formula bituminous concrete base deceleration strip upper surface, described heat molten type reflecting coating is formed along the spraying of width of roadway direction interval by yellowish-white two kinds of colors.Every section bituminous concrete base deceleration railway spike is comprised of many rows deceleration railway spike, and every two adjacent row's deceleration railway spikes adopt Heterogeneous Permutations, and that can effectively avoid the driver to have a mind to hides the deceleration railway spike and suddenly beat steering wheel, causes the problem of direction sideslip.Wherein, the deceleration railway spike is the spherical arc shape railway spike.
In the regional II of slowing down, by direction of traffic, the high H of article one hump formula bituminous concrete base deceleration strip
1For 30mm, wide W
1For 70mm, the high H of second hump formula pitch deceleration strip
2For 35mm, wide W
2For 70mm, adjacent two hump formula deceleration strip interval L
2For 25m.Wherein, every kind of reflecting coating is 0.6m along the spraying length of width of roadway direction.
In the regional III of slowing down, the segment length of every section bituminous concrete base deceleration railway spike is 30m, bituminous concrete base deceleration railway spike is comprised of perpendicular to the deceleration railway spike of direction of traffic many rows, every adjacent two row's deceleration railway spikes adopt Heterogeneous Permutation, adjacent two row's deceleration railway spike spacing a are 0.5m, and every row is adjacent, and two railway spike spacing b are 0.45m.Deceleration railway spike diameter D is 100mm, and deceleration railway spike height is 30mm, two sections deceleration railway spike interval L
4For 15m.
By testing on the long and steep downgrade road surface, when the storehouse grid formula semitrailer that average speed is 90km/h slows down zone by this, after the regional I that slows down, the speed of a motor vehicle remains unchanged substantially, and after the regional II that slows down, the speed of a motor vehicle is reduced to 70km/h, after the regional III that slows down, the speed of a motor vehicle has been reduced to 40km/h, final safety, whole process Speed Reduction 55%.
Embodiment 5
Deceleration zone I, deceleration zone II and the two sections deceleration zone III that bituminous concrete base deceleration railway spike forms that the formula of the hump perpendicular to direction of traffic bituminous concrete base deceleration strip forms that three protrusion-type of the thermoplasticity perpendicular to direction of traffic vibrations graticules form are arranged by direction of traffic successively in the long and steep downgrade energy dissipating deceleration road surface that embodiment 5 provides.
Wherein, the slow down interval L of regional I and the regional II of slowing down
1For 10m, the interval L of the regional II of slowing down and the regional III of slowing down
3For 15m.
Wherein, in the regional I that slows down, thermoplasticity protrusion-type vibrations graticule is banded, follows every vertical width L of thermoplasticity protrusion-type vibrations graticule of car direction
5For 600mm, transverse width is width of roadway, and in every thermoplasticity protrusion-type vibrations graticule, the height h of projection piece 1 is 5mm, the interval L of adjacent two thermoplasticity protrusion-types vibrations graticule
0For 6m.
Wherein, the cross section of hump formula bituminous concrete base deceleration strip is the semiellipse type with rounded corner, scribble the heat molten type reflecting coating at every hump formula bituminous concrete base deceleration strip upper surface, described heat molten type reflecting coating is formed along the spraying of width of roadway direction interval by yellowish-white two kinds of colors.Every section bituminous concrete base deceleration railway spike is comprised of many rows deceleration railway spike, and every two adjacent row's deceleration railway spikes adopt Heterogeneous Permutations, and that can effectively avoid the driver to have a mind to hides the deceleration railway spike and suddenly beat steering wheel, causes the problem of direction sideslip.Wherein, the deceleration railway spike is the spherical arc shape railway spike.
In the regional II of slowing down, by direction of traffic, the high H of article one hump formula bituminous concrete base deceleration strip
1For 30mm, wide W
1For 80mm.Wherein, every kind of reflecting coating is 0.6m along the spraying length of width of roadway direction.
In the regional III of slowing down, follow the car direction, the segment length of bituminous concrete base deceleration railway spike is respectively 20m, 30m, bituminous concrete base deceleration railway spike is comprised of perpendicular to the deceleration railway spike of direction of traffic many rows, every adjacent two row's deceleration railway spikes adopt Heterogeneous Permutation, adjacent two row's deceleration railway spike spacing a are 0.45m, and every row is adjacent, and two railway spike spacing b are 0.5m.Deceleration railway spike diameter D is 100mm, and deceleration railway spike height is 30mm, two sections deceleration railway spike interval L
4For 10m.
By testing on the long and steep downgrade road surface, when the offroad vehicle that average speed is 120km/h slows down zone by this, after the regional I that slows down, the speed of a motor vehicle is reduced to 110km/h, and after the regional II that slows down, the speed of a motor vehicle is reduced to 95km/h, after the regional III that slows down, the speed of a motor vehicle has been reduced to 80km/h, final safety, whole process Speed Reduction 33%.
The construction technology on above-mentioned each long and steep downgrade energy dissipating deceleration road surface comprises following steps:
1) road surface pretreatment: the position that the regional I of slowing down and the regional III of slowing down need to be constructed is cleaned, guarantee that road surface does not have impurity and dust, and road surface drying, after adopting compressed air to blow off the railway spike paste position in the regional III of slowing down, clean down with acetone again, repair smooth at larger recess with railway spike glue;
2) in the construction section setting-out: finish with line tool the regional arrangement diagram that respectively slows down and serve as a mark on construction section;
3) the regional construction of respectively slowing down:
The construction of the regional I of slowing down: the thermoplasticity protrusion-type vibrations graticule in the regional I of slowing down carries out setting-out with the graticule line drawing machine.
The construction of the regional II of slowing down: at first use milling machine road-surface milling to be gone out to the thickness of regulation along the cloth tagging of the deceleration strip of the deceleration zone II of finishing in step (2), with sander, the road surface after milling is polished flat, then remove residue and dust, finally with mulseal, prefabricated hump formula bituminous concrete base deceleration strip is bondd, installs; After installing half an hour, then adopt the graticule line drawing machine to carry out the spraying of heat molten type reflecting coating.
The construction of the regional III of slowing down: prepare a certain amount of epoxy adhesive, spread upon equably road surface with greasy cutter, the thick 2mm of glue left and right, again the deceleration railway spike is sticked on and smears the epoxy adhesive place according to the position of setting, then by the place's compacting of deceleration railway spike (manually pressing 20 seconds), make glue just from the railway spike periphery, extrude and get final product.
4) the regional maintenance of respectively slowing down: after step (3) completes, forbid moving above-mentioned deceleration facilities, and, by its maintenance 3-5 hour, can be open to traffic, can suitably increase the curing time of 2-3 hour for overcast and rainy, low temperature bad weather, and can cover and prevent rain drop erosion with plastic sheeting.
In the present invention, due to the actual conditions difference of long and steep downgrade speedway, for the setting of different length, the gradient and bend deceleration facilities, also difference can be arranged.For in easy flights, Hen Changde highway section, ramp can suitably increase slow down regional II and the regional III of slowing down; Larger for the gradient, the number of the deceleration strip in the regional II of slowing down can be suitably reduced in Hen Changde highway section, ramp, increases the length of the regional III of slowing down; For camber, the installation of bend should be avoided in larger highway section.
The above; just the present invention is directed to the preferred version of the actual conditions of several different long descending speedways; not the present invention is done to any pro forma restriction; the art personnel utilize the technology contents of above-mentioned announcement to make a little simple modification; equivalents or modification, all in protection scope of the present invention and so on.
Claims (10)
1. a long and steep downgrade energy dissipating deceleration road surface, is characterized in that: by direction of traffic, arrange successively many deceleration zone I that consist of thermoplasticity protrusion-type vibrations graticule perpendicular to direction of traffic, one to three zone II of the deceleration consisted of hump formula bituminous concrete base deceleration strip perpendicular to direction of traffic and one to the two section deceleration that the deceleration railway spike forms zone III.
2. a kind of long and steep downgrade energy dissipating deceleration according to claim 1 road surface is characterized in that: the regional I of described deceleration is 10-15m with the regional II spacing of slowing down, and described deceleration zone II is 10-25m with the regional III spacing of slowing down.
3. a kind of long and steep downgrade energy dissipating deceleration according to claim 1 and 2 road surface, it is characterized in that: the regional I of described deceleration consists of three thermoplasticity protrusion-type vibrations graticules perpendicular to direction of traffic, described thermoplasticity protrusion-type vibrations graticule is banded, following every vertical width of thermoplasticity protrusion-type vibrations graticule of car direction is 300-600mm, transverse width is width of roadway, the projection piece is 3-6mm with respect to the height of base part, and adjacent two thermoplasticity protrusion-types vibrations graticule is spaced apart 4-8m.
4. a kind of long and steep downgrade energy dissipating deceleration according to claim 3 road surface, it is characterized in that: adjacent two hump formula bituminous concrete base deceleration strip spacings are 15-25m, following car direction article one hump formula bituminous concrete base deceleration strip high is 20-35mm, vertically width is 50-80mm, second hump formula bituminous concrete base deceleration strip height is 30-40mm, vertically width is 50-80mm, article three, hump formula bituminous concrete base deceleration strip height is 30-40mm, vertically width is 50-80mm, the transverse width of every hump formula bituminous concrete base deceleration strip is the transverse width on road surface.
5. a kind of long and steep downgrade energy dissipating deceleration according to claim 4 road surface, it is characterized in that: described hump formula bituminous concrete base deceleration strip is for banded, its cross section is the semiellipse type with rounded corner, at hump formula bituminous concrete base deceleration strip upper surface, scribbles the heat molten type reflecting coating.
6. according to a kind of long and steep downgrade energy dissipating deceleration road surface in claim 5, it is characterized in that: described heat molten type reflecting coating is sprayed along width of roadway direction interval by yellowish-white two kinds of colors, along every kind of reflecting coating spraying length 0.4-0.6m of width of roadway direction, the width that the spraying width is hump formula bituminous concrete base deceleration strip.
7. a kind of long and steep downgrade energy dissipating deceleration according to claim 4 road surface, it is characterized in that: the regional III of slowing down consists of one to two section bituminous concrete base deceleration railway spike, the segment length of every section bituminous concrete base deceleration railway spike is 20-30m, the spacing of adjacent two sections bituminous concrete base deceleration railway spikes is 10-20m, and every section bituminous concrete base deceleration railway spike is comprised of perpendicular to the deceleration railway spike of direction of traffic many rows.
8. a kind of long and steep downgrade energy dissipating deceleration according to claim 7 road surface, it is characterized in that: in the regional III of described deceleration, every adjacent two row's deceleration railway spikes adopt Heterogeneous Permutation, adjacent two row's deceleration railway spike spacing 0.45-0.65m, adjacent two the railway spike spacing 0.35-0.5m of every row.
9. a kind of long and steep downgrade energy dissipating deceleration according to claim 7 road surface, it is characterized in that: the deceleration railway spike in the regional III of described deceleration is the spherical arc shape railway spike, and its bottom surface circular diameter is 0.1-0.12m, and height is 0.03-0.04m.
10. the construction technology on a kind of long and steep downgrade energy dissipating deceleration according to claim 1 road surface is characterized in that it comprises following steps:
1) road surface pretreatment: the position that the regional I of slowing down and the regional III of slowing down need to be constructed is cleaned, guarantee that road surface does not have impurity and dust, and road surface drying, after adopting compressed air to blow off the railway spike paste position in the regional III of slowing down, with acetone, clean down again. larger recess is repaired smooth with railway spike glue;
2) in the construction section setting-out: finish with line tool the regional arrangement diagram that respectively slows down and serve as a mark on construction section;
3) the regional construction of respectively slowing down:
The construction of the regional I of slowing down: the thermoplasticity protrusion-type vibrations graticule in the regional I of slowing down carries out setting-out with the graticule line drawing machine;
The construction of the regional II of slowing down: the thickness of at first using milling machine along the cloth tagging of the deceleration strip of the deceleration zone II of finishing in step (2), road-surface milling to be gone out to set, with sander, the road surface after milling is polished flat, then remove residue and dust, finally with mulseal, prefabricated hump formula bituminous concrete base deceleration strip is bondd, installs; Install after the time of setting, then adopt the graticule line drawing machine to carry out the spraying of heat molten type reflecting coating;
The construction of the regional III of slowing down: prepare a certain amount of epoxy adhesive, spread upon equably road surface with greasy cutter, again the deceleration railway spike is sticked on and smears the epoxy adhesive place according to the position of setting, then by the place's compacting of deceleration railway spike, make glue just from the railway spike periphery, extrude and get final product;
4) the regional maintenance of respectively slowing down: after step (3) completes, forbid moving above-mentioned deceleration facilities, and, by its maintenance 3-5 hour, can be open to traffic, for overcast and rainy, low temperature bad weather, can suitably increase the curing time of 2-3 hour.
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