CN105544334B - One kind is used for vehicle jumping at bridge head of highway Treatment Methods - Google Patents
One kind is used for vehicle jumping at bridge head of highway Treatment Methods Download PDFInfo
- Publication number
- CN105544334B CN105544334B CN201510972029.0A CN201510972029A CN105544334B CN 105544334 B CN105544334 B CN 105544334B CN 201510972029 A CN201510972029 A CN 201510972029A CN 105544334 B CN105544334 B CN 105544334B
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- Prior art keywords
- roadbed
- bridge
- head
- bridge head
- transition slab
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
Abstract
The present invention provides one kind for vehicle jumping at bridge head of highway Treatment Methods, and including top course, transition slab at bridge head and roadbed, injecting treatment is used to roadbed；Fracture, road surface gross distortion position occurs in transition slab at bridge head, digs out and replaces transition slab at bridge head, excavates road surface and excavates 0.5 1m of roadbed and change and fill out, roadbed top and roadbed bottom are filled out using reinforced mesh reinforcing changing；It in the complete end of the bridge of attachment strap, carries out levelling with asphalt surface course and reversed longitudinal slope is set, ensure that draining is unobstructed.The present invention handles bumping at bridge-head in terms of roadbed is punished, attachment strap is punished and road surface punishes three, effectively to subgrade strengthening, ensures that horizontal slope, longitudinal slope smooth-going and subgrade and pavement draining are unobstructed, end of the bridge settles after effective prevention punishment, convenient for construction and quality control.
Description
Technical field
The present invention relates to pavement disease Treating technology fields more particularly to one kind to be used for vehicle jumping at bridge head of highway punishment side
Method.
Background technology
In use for some time, inevitably there are various diseases in highway pavement, and bumping at bridge-head is highway construction
In relatively conventional subgrade defect.Bumping at bridge-head refers to that road is connected road surface or the attachment strap change that region occurs with what bridge platform was carried on the back
Shape, fracture；Usually, it drives a vehicle in the speed of 100-120Km/h, 5cm differential settlements, which will generate serious vehicle of jumping, may simultaneously cause
Traffic accident.Vehicle jumping at bridge head of highway influences road speed, traffic safety, car operation expense, maintenance cost of highway and makes
It has been that highway improves construction quality urgent problem to be solved with the service life.
It has done a large amount of analyses to bumping at bridge-head Crack cause both at home and abroad, and has proposed from ground punishment, roadbed punishment and road
The generation that face punishes three aspects to prevent and reduce bumping at bridge-head.It is therefore proposed that economical and effective punishment bumping at bridge-head
Measure reduces jump vehicle phenomenon to greatest extent, meets highway to driving high speed, comfortable, safety requirement, and extend
Road service life, has a very important significance.
Invention content
The purpose of the present invention is to provide one kind for vehicle jumping at bridge head of highway Treatment Methods, asked with solving above-mentioned technology
Topic.For the differential settlement that the freeway bridge caster bed back of the body bankets with structure, impeded drainage and roadbed filling are lost in, easily
Express highway roadbed section is caused to occur larger depth displacement between bridge section, the present invention, which contains, takes roadbed punishment, end of the bridge
Plate is punished and road surface punishment, can realize that two aspects solve the problems, such as vehicle jumping at bridge head of highway from roadbed to road surface.
The technical problems to be solved by the invention are realized using following technical scheme：
One kind is for vehicle jumping at bridge head of highway Treatment Methods, and including top course, transition slab at bridge head and roadbed, feature exists
In：Injecting treatment is used to roadbed, fracture, road surface gross distortion position occurs in transition slab at bridge head, digs out and replaces transition slab at bridge head,
It digs out the following roadbed of transition slab at bridge head change filling out, changes the roadbed top filled out and roadbed bottom setting reinforced mesh is reinforced, in the end of the bridge
The complete end of the bridge of attachment strap is carried out levelling with asphalt surface course.
Preferably, the range of grouting of the injecting treatment needs gradient incline variation not less than 1/ according to jump vehicle does not occur
200 determine.
Preferably, the injecting treatment uses cement mortar, the two rows of pitchs of holes in roadbed outside are 2*2 meters, other each rows are
2.5*2.5 meters, slip casting depth fills depth for abutment.
Preferably, the roadbed for digging out 0.5-1m below transition slab at bridge head change filling out.
Preferably, bituminous paving is levelling, longitudinal counter-slope is set after levelling；It is disconnected with now indulging according to original design vertical section absolute altitude
Face absolute altitude depth displacement determines different levelling modes；As sedimentation depth displacement h ＜ 5cm, using upper layer leveling；When sedimentation depth displacement
5cm≤h≤12cm, using 4cm thickness upper layer+adhesion coating+middle face layer leveling layer；When settling depth displacement h ＞ 12cm, using 4cm
Face layer+adhesion coating+cutting optimal leveling layer in upper layer+adhesion coating+6cm, and cutting optimal placement thickness be more than 10cm when, need place Min layers
It builds.
The beneficial effects of the invention are as follows：
1st, the present invention carries out Grouting using to roadbed, carries out consolidation process to platform back of the body roadbed, improves bearing capacity, reduce
Subgrade settlement so as to effectively reduce the differential settlement of abutment and roadbed, ensures the balance transition of abutment and subgrade settlement on longitudinal direction, horizontal
The deformation of roadbed center is maintained upward by with the compatibility of deformation of slope foot curb to stablize.
2nd, the present invention digs out and replaces the attachment strap of end of the bridge fracture, and transition slab at bridge head fracture can not play dispersing and settling amount and even
Along the purpose of longitudinal slope, fracture attachment strap is replaced, according to existing depth displacement, attachment strap length is redesigned, effectively solves local subsidence, horizontal slope
Variation.
3rd, the present invention solves change of longitudinal grade using asphalt is levelling, and different settling amounts use different layers position bituminous sheaths
Layer is levelling, and the durability for not only having increased road surface ensures the easy property constructed again, and sets longitudinal counter-slope, during effectively offsetting operation
Part sedimentation.
4th, the present invention effectively reduces roadbed and changes the sedimentation after filling out using reinforced mesh to subgrade strengthening.
Description of the drawings
Fig. 1 is the range of grouting schematic diagram of the present invention；
Fig. 2 is bumping at bridge-head treatment structures schematic diagram.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiments and the drawings are closed, the present invention is further explained, but following embodiments are only the preferred embodiment of the present invention, not
All.Based on the embodiment in embodiment, those skilled in the art are obtained under the premise of creative work is not made
Other embodiments belong to protection scope of the present invention.
Specific embodiments of the present invention are described below in conjunction with the accompanying drawings.
The vehicle jumping at bridge head of highway treatment structures of the present embodiment, from top to bottom including top course, transition slab at bridge head, road
Base.
To roadbed using injecting treatment, roadbed slip casting uses cement mortar, quincunx to lay out pile, and two rows of pitchs of holes are on the outside of roadbed
2*2 meters, other each rows are 2.5*2.5 meters, and slip casting depth fills depth for abutment, and range of grouting needs road according to jump vehicle does not occur
Line change of longitudinal grade determines that grouting mode is divided into slip casting twice, is for the first time 2 meters of ground above section not less than 1/200, second
It is 2 meters of ground with lower part；
Fracture, road surface gross distortion position occurs in transition slab at bridge head, digs out and replaces transition slab at bridge head, and dig out below attachment strap
50cm change filling out, and bottom and top laying reinforced mesh reinforcing is filled out changing；
Bituminous paving is levelling, and longitudinal counter-slope is set after levelling.It is high according to original design vertical section absolute altitude and existing vertical section absolute altitude
Path difference determines different levelling modes.As sedimentation depth displacement h ＜ 5cm, using upper layer leveling.When sedimentation depth displacement 5m≤h≤
12cm, using 4cm thickness upper layer+adhesion coating+middle face layer leveling layer.When settling depth displacement h ＞ 12cm, using 4cm upper layers+viscous
Layer+6cm in face layer+adhesion coating+cutting optimal leveling layer, and cutting optimal placement thickness more than 10cm when, making need to be layered.
Referring to Fig. 1, Fig. 2, bumping at bridge-head treatment structures include roadbed, transition slab at bridge head and top course.
Bumping at bridge-head is 10cm, needs gradient incline variation not less than 1/200 determining range of grouting according to jump vehicle does not occur
For 20m, the abutment depth of fill is 8m, referring to Fig. 1, is laid out pile using quincunx, end of the bridge hole number 128, drilling depth 8m, the
Once grouting depth is 2m, and grouting pressure 0.2Mpa, second of slip casting depth is 8m, and grouting pressure 0.5Mpa works as slip casting
Amount is less than 0.001m3/ min either reaches grouting pressure requirement or stabilization time 10min, stops slip casting, and end of the bridge grouting amount is
0.98m3/m。
The entire bitumen layer of milling lane auxiliary, transition slab at bridge head is complete, is not broken.
The vertical section elevation in the range of existing bumping at bridge-head 20m is measured, vertical section elevation is designed according to original, determines asphalt overlaying
Amount using the levelling method of absolute altitude, paves according to absolute altitude hanging wire when paving and carries out levelling, vertical section smooth-going after guarantee overlays, and set
Longitudinal counter-slope, referring to Fig. 2, H2Max removes upper layer 4cm for sedimentation highest elevation subtractive.Bumping at bridge-head 10cm, using in 0-6cm
Face layer AC-20 (PR anti-rut agents) is levelling, and 4cmAC-13 (SBS) upper layer is overlayed after levelling.
Basic principle, main feature and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention
Preference, be not intended to limit the present invention, without departing from the spirit and scope of the present invention, the present invention also have it is various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (2)
1. one kind is for vehicle jumping at bridge head of highway Treatment Methods, including top course, transition slab at bridge head and roadbed, feature exists
In：Injecting treatment is used to roadbed, fracture, road surface gross distortion position occurs in transition slab at bridge head, digs out and replaces transition slab at bridge head,
It digs out the following roadbed of transition slab at bridge head change filling out, changes the roadbed top filled out and roadbed bottom setting reinforced mesh is reinforced, in the end of the bridge
The complete end of the bridge of attachment strap, is carried out levelling with asphalt surface course, and the range of grouting of the injecting treatment needs road according to not occurring to jump vehicle
Line change of longitudinal grade is determined not less than 1/200；The injecting treatment uses cement mortar, and the two rows of pitchs of holes in roadbed outside are 2*2 meters,
His each row is 2.5*2.5 meters, and slip casting depth fills depth for abutment；Bituminous paving is levelling, and longitudinal counter-slope is set after levelling；According to
Original design vertical section absolute altitude and existing vertical section absolute altitude depth displacement, determine different levelling modes；As sedimentation depth displacement h ＜ 5cm, use
Upper layer leveling；As sedimentation depth displacement 5cm≤h≤12cm, using 4cm thickness upper layer+adhesion coating+middle face layer leveling layer；Work as sedimentation
During depth displacement h ＞ 12cm, using face layer+adhesion coating+cutting optimal leveling layer in 4cm upper layers+adhesion coating+6cm, and cutting optimal making is thick
When degree is more than 10cm, making need to be layered.
It is 2. according to claim 1 a kind of for vehicle jumping at bridge head of highway Treatment Methods, it is characterised in that：Dig out end of the bridge
The roadbed of 0.5-1m below attachment strap change filling out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510972029.0A CN105544334B (en) | 2015-12-21 | 2015-12-21 | One kind is used for vehicle jumping at bridge head of highway Treatment Methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510972029.0A CN105544334B (en) | 2015-12-21 | 2015-12-21 | One kind is used for vehicle jumping at bridge head of highway Treatment Methods |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105544334A CN105544334A (en) | 2016-05-04 |
| CN105544334B true CN105544334B (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510972029.0A Active CN105544334B (en) | 2015-12-21 | 2015-12-21 | One kind is used for vehicle jumping at bridge head of highway Treatment Methods |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106192635A (en) * | 2016-07-13 | 2016-12-07 | 赵挺生 | A kind of construction method solving Bridgehead-Jumping Disease |
| CN108035264A (en) * | 2017-11-14 | 2018-05-15 | 广东精特建设工程有限公司 | On settling the processing mode of latter lifting under transition slab at bridge head |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0518120A (en) * | 1991-07-09 | 1993-01-26 | Central Japan Railway Co | Repairing method for concrete skeleton |
| 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 |
| CN102383355A (en) * | 2011-09-01 | 2012-03-21 | 英达热再生有限公司 | Asphalt pavement bumping at bridge head local hot reproduction treatment method |
-
2015
- 2015-12-21 CN CN201510972029.0A patent/CN105544334B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0518120A (en) * | 1991-07-09 | 1993-01-26 | Central Japan Railway Co | Repairing method for concrete skeleton |
| 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 |
| CN102383355A (en) * | 2011-09-01 | 2012-03-21 | 英达热再生有限公司 | Asphalt pavement bumping at bridge head local hot reproduction treatment method |
Non-Patent Citations (2)
| Title |
|---|
| 公路桥头跳车病害处治技术研究;彭银辉;《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》;20110331;正文第18-27页 * |
| 桥头跳车形成原因及缓解桥头跳车的技术措施;唐英;《黑龙江交通科技》;20071130(第165期);正文第42页右栏 * |
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| CN105544334A (en) | 2016-05-04 |
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Effective date of registration: 20180709 Address after: 230000 Jinzhai South Road, Shushan District, Hefei, Anhui Province, No. 18 Patentee after: Anhui Expressway test & Research Center Co., Ltd. Address before: 230000 No. 180, Xiang Zhang Road, high tech Zone, Hefei, Anhui Patentee before: ANHUI TRAFFIC PLANNING AND DESIGN INSTITUTE CO., LTD. |
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