CN103290780A - Road and bridge joint structure and method using structure for eliminating non-uniform settlement - Google Patents
Road and bridge joint structure and method using structure for eliminating non-uniform settlement Download PDFInfo
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- CN103290780A CN103290780A CN2013102432202A CN201310243220A CN103290780A CN 103290780 A CN103290780 A CN 103290780A CN 2013102432202 A CN2013102432202 A CN 2013102432202A CN 201310243220 A CN201310243220 A CN 201310243220A CN 103290780 A CN103290780 A CN 103290780A
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Abstract
The invention discloses a road and bridge joint structure which comprises a road and a bridge. The road comprises a roadbed natural debris layer on a base layer, a roadbed limestone soil layer, a road asphalt macadam layer and a road surface asphalt layer, wherein the roadbed limestone soil layer is arranged on the upper portion of the roadbed natural debris layer, the road asphalt macadam layer is arranged on the upper portion of the limestone soil layer, and the road surface asphalt layer is arranged on the upper portion of the macadam layer. The bridge comprises a foundation pedestal foot, a reinforced concrete bridge pier is fixedly arranged above the foundation pedestal foot, a reinforced concrete bridge plate is erected on the bridge pier, a bridge surface asphalt macadam layer is laid on the upper portion of the bridge plate, a bridge surface asphalt layer is arranged on the bridge surface asphalt macadam layer, and a grading crushed-gravel layer is vertically arranged between the foundation pedestal foot and the upper surface of the reinforced concrete bridge plate in a filling mode. A road and bridge asphalt settlement seam is reserved in a road and bridge joint, and an asphalt layer is filled in the road and bridge asphalt settlement seam to achieve smooth transition connection between the road and the bridge. The thickness of the bridge surface asphalt macadam layer of the bridge is the maximum settlement height of the road and bridge joint. The road and bridge joint structure has the advantages of being not limited by seasons, dynamically eliminating the settlement altitude difference of a shear seam of the road and bridge joint, and effectively ensuring the fact that a running car is not damaged by the shear force of the settlement altitude difference.
Description
Technical field
The present invention solves under the soft foundation situation, eliminate the bridge floor cement boss (discrepancy in elevation of road surface and bridge floor junction) of two ends, road and bridge junction shearing seam differential settlement formation to the potential safety hazard that the gap bridge running car brings, the invention belongs to the road and bridge technical field of buildings.Be specially the structure of junction of a kind of road and bridge and utilize this structure to eliminate the method for differential settlement.
Background technology
Because the geology characteristic of China's southeastern coast: the groundwater table height, soil layer moisture content height, the compressibilty height, intensity is low, and is highly sensitive, and water permeability is low.Making the phenomenon that road and bridge of active service all exist automobile in various degree to beat to end of the bridge, is the technical barrier in puzzlement road and bridge field.This is because when road construction and bridge construction, different processing modes is all adopted on the basis of highway and pontic, under the effect of dynamic load, As time goes on, cause the junction on the different bases with pontic of highway to produce differential settlement, the settling rate of highway is greater than the settling rate (settling amount on road is greater than the settling amount of bridge) of pontic, and causing is completed uses the road and bridge junction after a period of time to produce certain sedimentation discrepancy in elevation, and the vehicle on the road surface of causing travelling can produce when passing a bridge beats; As time goes on, road and bridge, the high missionary society of sedimentation of junction strengthened gradually, the more feasible motor vehicles that travel on the road surface can produce violent beating by bridge road bridge junction the time, and the gap bridge automobile is beated and can be strengthened gradually, the vertical sedimentation seam place obviously bridge floor of exposed projection is concrete right angle faceted pebble, brought bigger potential safety hazard for the vehicle that travels, can cause the automobile domain to drag wiping or bridge deck concrete right angle faceted pebble to shear tire when serious and cause blowing out.
Present solution is: the junction shearing is sewed with the sedimentation discrepancy in elevation greater than 3-5cm when road and bridge, waits until and with asphalt macadam the vertical sedimentation seam is filled up to eliminate the road and bridge discrepancy in elevation when temperature that arrives summer raises.
The method that adopts has following deficiency at present: 1. this method is subjected to the influence of environment temperature, will wait until usually and could construct summer; 2. in a single day the junction bonding crack has the sedimentation discrepancy in elevation road and bridge, and the exposed bridge floor that highlights is concrete right angle faceted pebble, can cause great shear forces to the doughnut of running at high speed, and makes car accident potential to traveling automobile.
Summary of the invention:
The present invention is directed to the above-mentioned deficiency of prior art, provide a kind of and be not subject to seasonal restrictions, can dynamically eliminate the road and bridge junction shearing seam sedimentation discrepancy in elevation constantly, guarantee that effectively traveling automobile is not subjected to the road and bridge junction structure of the destruction of sedimentation discrepancy in elevation shearing force.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of road and bridge the junction structure, this structure comprises Lu Heqiao, described road comprises the roadbed natural sand gravel bed of bottom, the roadbed lime soil layer of roadbed natural sand gravel bed top, the road bituminous macadam of roadbed lime soil layer top, the road surfaces bitumen layer of road bituminous macadam top; Described bridge comprises that the abutment plinth that is arranged in the river amplifies pin, the abutment plinth amplifies the pin upper fixed reinforced concrete bridge pier, described reinforced concrete bridge pier is put on the shelf and is provided with the steel concrete bridge plate, described steel concrete bridge plate top is equipped with the bridge floor bituminous macadam, and described bridge floor bituminous macadam top is bridge surface bitumen layer; Described abutment plinth amplifies pin and is provided with grating crushed gravel layer to vertically filling out between the steel concrete bridge plate upper surface; Be reserved with road and bridge pitch settlement joint between described bridge and the junction, road, fill out in the described road and bridge pitch settlement joint and be provided with bitumen layer and make and realize between the Lu Yuqiao being connected smoothly; The thickness of the bridge floor bituminous macadam of described bridge is the maximum settlement height of road and bridge junction.
Adopt said structure, when the sedimentation discrepancy in elevation appears in bridge floor and road surface, exclude bridge floor with road planer and highlight exposed part, seamlessly transitting of road and bridge of recovery gets final product; In addition, the present invention adopts at abutment plinth amplification pin and is provided with grating crushed gravel layer to vertically filling out between the steel concrete bridge plate upper surface, when the sedimentation discrepancy in elevation takes place in Dang Qiao and road, the existence of grating crushed gravel layer is because particle is little, can not scrape the sedimentation simultaneously of band bridge floor and road surface, thereby guarantee the planarization on bridge floor and road surface; In addition, fill out in the road and bridge pitch settlement joint and be provided with bitumen layer and guarantee road and bridge independence respect to one another when differential settlement, zoning do not occur scraping.
The present invention above-mentioned road and bridge the junction the maximum settlement height can be calculated by following formula: S=s
1+ s
2Wherein S be total settlement just road and bridge the junction the maximum settlement height, s
1Be stabilization zone soil body decrement (the conventional title of industry), s
2Be stabilization zone substratum soil body decrement; Each parameter name in the above-mentioned formula is the conventional term of industry, and those skilled in the art can obtain above-mentioned s without creative work when road and bridge construction
1And s
2Response numerical value.
A kind of method of utilizing said structure to eliminate road and bridge junction differential settlement, this method step comprises:
(1) guaranteeing that road and bridge quality, pontic cross under the constant situation of water, navigation ability, during the pontic construction, pin is amplified on the fixed bridge basis in river earlier, amplifies pin upper fixed reinforced concrete bridge pier at the abutment plinth then, lays the steel concrete bridge plate then above reinforced concrete bridge pier; Lay the bridge floor bituminous macadam above the steel concrete bridge plate, the thickness of the bridge floor bituminous macadam of described bridge is the maximum settlement height of road and bridge junction; Lay one deck bridge surface bitumen layer at bridge floor bituminous macadam upper surface; Amplify pin to the grating crushed gravel layer that fills up grating crushed gravel formation vertical between the steel concrete bridge plate upper surface at the abutment plinth, and road and bridge road and bridge pitch settlement joint place brush the thick bitumen layer of horizontal 4～6mm, be in order to guarantee that road and bridge keep relative independence when the differential settlement;
During (2) with construction of the highway that pontic is connected, first roadbed paving natural sand gravel bed is laid one deck roadbed lime soil layer above then, lays the road bituminous macadam above roadbed lime soil layer, lays one deck road surfaces bitumen layer above the bituminous macadam of described road; The bridge floor rubble bitumen layer of the road bituminous macadam of road paving and bridge seamlessly transits;
When (3) treating that height fall appears in junction, road and bridge cross section, the bridge floor bituminous macadam right angle faceted pebble that bridge floor highlights is under the impact-rolling of wheel, the right angle faceted pebble will disappear automatically, can produce the gentle slope of a smooth excessiveness, and then exclude bridge floor with road planer and highlight exposed bridge floor asphalt macadam layer segment, recover seamlessly transitting of road and bridge and get final product.
As preferably, it is 5mm that step (1) described road and bridge are sheared the seam place horizontal bitumen layer thickness of brushing.
The maximum settlement height of step (1) junction of described road and bridge is calculated by following formula:
S=s
1+s
2；
Wherein S be total settlement just road and bridge the junction the maximum settlement height, s
1Be stabilization zone soil body decrement, s
2Be stabilization zone substratum soil body decrement.Each parameter name in the above-mentioned formula is the conventional term of industry, and those skilled in the art can obtain above-mentioned s without creative work when road and bridge construction
1And s
2Response numerical value.
The advantage of said method of the present invention:
1 the present invention in time dynamically eliminates the road and bridge junctions with external force to shear a kind of method of the seam sedimentation discrepancy in elevation, and the beating of vehicle when reducing or eliminating automobile by end of the bridge guaranteed the driving safety of bridge vehicle.And method of the present invention is not subjected to the restriction of season and problem, and only the bituminous macadam that will exceed digs and can realize being open to traffic, and saves time, laborsaving easy construction.
2 methods of the present invention are dynamically eliminated the differential settlement of highway and pontic, solve the road and bridge automobile that causes because of difference in height of the junction phenomenon of beating preferably.
3 the present invention are not only applicable to newly-built road and bridge, and are suitable for eliminating the active service differential settlement of road and bridge equally.
The present invention adopt road and bridge pitch settlement joint place brush the thick bitumen layer of horizontal 4～6mm, to guarantee the vertical separation of roadbed and pontic junction; And can not be filled into the below, road surface because of the filler of pontic below and cause sedimentation the time, scrape band each other to cause the rugged phenomenon in road surface to occur, so that eliminate the construction of road and bridge during differential settlement.
Description of drawings
Accompanying drawing road and bridge junction structural representation.
As shown in the figure: 1. the abutment plinth amplifies pin, 2. reinforced concrete bridge pier, 3. steel concrete bridge plate, 4. bridge floor bituminous macadam, 5. bridge surface bitumen layer, 6. grating crushed gravel layer, road and bridge the pitch settlement joint, 8. roadbed natural sand gravel bed, 9. roadbed lime soil layer, 10. road bituminous macadam, 11. road surfaces bitumen layer.
The specific embodiment
Below by accompanying drawing the present invention is described in further detail, but the present invention not only is confined to following examples.
The various building stones that the embodiment of the invention is used are the industry conventional material.
Embodiment
As shown in drawings; Road and bridge of the present invention the junction structural representation: road and bridge the junction structure, this structure comprises Lu Heqiao, described road comprises the roadbed natural sand gravel bed 8 of bottom, the roadbed lime soil layer 9 of roadbed natural sand gravel bed top, the road bituminous macadam 10 of roadbed lime soil layer top, the road surfaces bitumen layer 11 of road bituminous macadam top; Described bridge comprises that the abutment plinth that is arranged in the river amplifies pin 1, the abutment plinth amplifies the pin upper fixed reinforced concrete bridge pier 2, described reinforced concrete bridge pier is put on the shelf and is provided with steel concrete bridge plate 3, described steel concrete bridge plate top is equipped with bridge floor bituminous macadam 4, and described bridge floor bituminous macadam top is bridge surface bitumen layer 5; Described abutment plinth amplifies pin and is provided with grating crushed gravel layer 6 to vertically filling out between the steel concrete bridge plate upper surface; Be reserved with road and bridge pitch settlement joint 7 between described bridge and the junction, road, fill out in the described road and bridge pitch settlement joint and be provided with bitumen layer and make and realize between the Lu Yuqiao being connected smoothly; The thickness of the bridge floor bituminous macadam of described bridge is the maximum settlement height of road and bridge junction.
Adopt said structure, when the sedimentation discrepancy in elevation appears in bridge floor and road surface, exclude bridge floor with road planer and highlight exposed part, seamlessly transitting of road and bridge of recovery gets final product; In addition, the present invention adopts at abutment plinth amplification pin and is provided with grating crushed gravel layer to vertically filling out between the steel concrete bridge plate upper surface, when the sedimentation discrepancy in elevation takes place in Dang Qiao and road, the existence of grating crushed gravel layer is because particle is little, can not scrape the sedimentation simultaneously of band bridge floor and road surface, thereby guarantee the planarization on bridge floor and road surface; In addition, fill out in the road and bridge pitch settlement joint and be provided with bitumen layer and guarantee road and bridge independence respect to one another when differential settlement, zoning do not occur scraping.
The present invention above-mentioned road and bridge the junction the maximum settlement height can be calculated by following formula: S=s
1+ s
2Wherein S be total settlement just road and bridge the junction the maximum settlement height, s
1Be stabilization zone soil body decrement (the conventional title of industry), s
2Be stabilization zone substratum soil body decrement.
A kind of method of utilizing said structure to eliminate road and bridge junction differential settlement, this method step comprises:
(1) guaranteeing that road and bridge quality, pontic cross under the constant situation of water, navigation ability, during the pontic construction, pin is amplified on the fixed bridge basis in river earlier, amplifies pin upper fixed reinforced concrete bridge pier at the abutment plinth then, lays the steel concrete bridge plate then above reinforced concrete bridge pier; Laying depth is the bridge floor bituminous macadam of 35cm above the steel concrete bridge plate; Laying a layer thickness at bridge floor bituminous macadam upper surface is 3cm bridge surface bitumen layer; Amplify pin to the grating crushed gravel layer that fills up grating crushed gravel formation vertical between the steel concrete bridge plate upper surface at the abutment plinth, and road and bridge road and bridge pitch settlement joint place brush the thick bitumen layer of horizontal 5mm, be in order to guarantee that road and bridge keep relative independence when the differential settlement;
During (2) with construction of the highway that pontic is connected, elder generation's roadbed paving natural sand gravel bed, laying a layer thickness then is 15cm roadbed lime soil layer, laying depth is 10cm road bituminous macadam above roadbed lime soil layer, and laying a layer thickness above the bituminous macadam of described road is 3cm road surfaces bitumen layer; The bridge floor rubble bitumen layer of the road bituminous macadam of road paving and bridge seamlessly transits;
When (3) treating that height fall appears in junction, road and bridge cross section, the bridge floor bituminous macadam right angle faceted pebble that bridge floor highlights is under the impact-rolling of wheel, the right angle faceted pebble will disappear automatically, can produce the gentle slope of a smooth excessiveness, and then exclude bridge floor with road planer and highlight exposed bridge floor asphalt macadam layer segment, recover seamlessly transitting of road and bridge and get final product.
The present invention in time dynamically eliminates the road and bridge junctions with external force to shear a kind of method of the seam sedimentation discrepancy in elevation, and the beating of vehicle when reducing or eliminating automobile by end of the bridge guaranteed the driving safety of bridge vehicle.And method of the present invention is not subjected to the restriction of season and problem, and only the bituminous macadam that will exceed digs and can realize being open to traffic, and saves time, laborsaving easy construction.
Claims (5)
- One kind road and bridge the junction structure, this structure comprises Lu Heqiao, described road comprises the roadbed natural sand gravel bed (8) of bottom, the roadbed lime soil layer (9) of roadbed natural sand gravel bed top, the road bituminous macadam (10) of roadbed lime soil layer top, the road surfaces bitumen layer (11) of road bituminous macadam top; Described bridge comprises that the abutment plinth that is arranged in the river amplifies pin (1), the abutment plinth amplifies the pin upper fixed reinforced concrete bridge pier (2), described reinforced concrete bridge pier is put on the shelf and is provided with steel concrete bridge plate (3), described steel concrete bridge plate top is equipped with bridge floor bituminous macadam (4), described bridge floor bituminous macadam top is bridge surface bitumen layer (5), it is characterized in that: described abutment plinth amplifies pin (1) and is provided with grating crushed gravel layer (6) to vertically filling out between steel concrete bridge plate (3) upper surface; Be reserved with road and bridge pitch settlement joint (7) between described bridge and the junction, road, fill out in the described road and bridge pitch settlement joint and be provided with bitumen layer and make and realize between the Lu Yuqiao being connected smoothly; The thickness of the bridge floor bituminous macadam of described bridge is the maximum settlement height of road and bridge junction.
- Road and bridge according to claim 1 the junction structure, it is characterized in that: described road and bridge the maximum settlement height of junction calculated by following formula:S=s 1+s 2；Wherein S be total settlement just road and bridge the junction the maximum settlement height, s 1Be stabilization zone soil body decrement, s 2Be stabilization zone substratum soil body decrement.
- 3. method of eliminating road and bridge junction differential settlement, it is characterized in that: this method step comprises:(1) guaranteeing that road and bridge quality, pontic cross under the constant situation of water, navigation ability, during the pontic construction, pin is amplified on the fixed bridge basis in river earlier, amplifies pin upper fixed reinforced concrete bridge pier at the abutment plinth then, lays the steel concrete bridge plate then above reinforced concrete bridge pier; Lay the bridge floor bituminous macadam above the steel concrete bridge plate, the thickness of the bridge floor bituminous macadam of described bridge is the maximum settlement height of road and bridge junction; Lay one deck bridge surface bitumen layer at bridge floor bituminous macadam upper surface; Amplify pin to the grating crushed gravel layer that fills up grating crushed gravel formation vertical between the steel concrete bridge plate upper surface at the abutment plinth, and road and bridge road and bridge pitch settlement joint place brush the thick bitumen layer of horizontal 4～6mm, be in order to guarantee that road and bridge keep relative independence when the differential settlement;During (2) with construction of the highway that pontic is connected, first roadbed paving natural sand gravel bed is laid one deck roadbed lime soil layer above then, lays the road bituminous macadam above roadbed lime soil layer, lays one deck road surfaces bitumen layer above the bituminous macadam of described road; The bridge floor rubble bitumen layer of the road bituminous macadam of road paving and bridge seamlessly transits;When (3) treating that height fall appears in junction, road and bridge cross section, the bridge floor bituminous macadam right angle faceted pebble that bridge floor highlights is under the impact-rolling of wheel, the right angle faceted pebble will disappear automatically, produce the gentle slope of a smooth excessiveness, and then exclude bridge floor with road planer and highlight exposed bridge floor asphalt macadam layer segment, recover seamlessly transitting of road and bridge and get final product.
- 4. the method for elimination according to claim 3 road and bridge junction differential settlement is characterized in that: it is 5mm that step (1) described road and bridge are sheared the seam place horizontal bitumen layer thickness of brushing.
- 5. the method for elimination according to claim 3 road and bridge junction differential settlement, it is characterized in that: the maximum settlement height of step (1) junction of described road and bridge is calculated by following formula:S=s 1+s 2；Wherein S be total settlement just road and bridge the junction the maximum settlement height, s 1Be stabilization zone soil body decrement, s 2Be stabilization zone substratum soil body decrement.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1388292A (en) * | 2001-05-28 | 2003-01-01 | 陈光和 | Bridge-road joint constructing method to prevent bump of vehicle at ends of bridge |
| CN101363209A (en) * | 2008-07-08 | 2009-02-11 | 张雷 | Technology for preventing bumping at bridge-head |
| RU2374383C1 (en) * | 2008-06-23 | 2009-11-27 | Государственное образовательное учреждение высшего профессионального образования Архангельский государственный технический университет Федерального агентства по образованию (Рособразование) (АГТУ) | Structure for coupling of wood-and-reinforced concrete span with bridge abutment |
| CN201713743U (en) * | 2009-07-04 | 2011-01-19 | 商丘市豫东公路勘察设计有限公司 | Asphalt concrete pavement structure of roads in Pingyuan County in Eastern Henan Province |
| CN101967794A (en) * | 2010-09-18 | 2011-02-09 | 余闯 | New technology for treating vehicle bump at bridge ends |
-
2013
- 2013-06-18 CN CN201310243220.2A patent/CN103290780B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1388292A (en) * | 2001-05-28 | 2003-01-01 | 陈光和 | Bridge-road joint constructing method to prevent bump of vehicle at ends of bridge |
| RU2374383C1 (en) * | 2008-06-23 | 2009-11-27 | Государственное образовательное учреждение высшего профессионального образования Архангельский государственный технический университет Федерального агентства по образованию (Рособразование) (АГТУ) | Structure for coupling of wood-and-reinforced concrete span with bridge abutment |
| CN101363209A (en) * | 2008-07-08 | 2009-02-11 | 张雷 | Technology for preventing bumping at bridge-head |
| CN201713743U (en) * | 2009-07-04 | 2011-01-19 | 商丘市豫东公路勘察设计有限公司 | Asphalt concrete pavement structure of roads in Pingyuan County in Eastern Henan Province |
| CN101967794A (en) * | 2010-09-18 | 2011-02-09 | 余闯 | New technology for treating vehicle bump at bridge ends |
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