CN108330848B - A kind of bridge pavement repairing construction technology - Google Patents
A kind of bridge pavement repairing construction technology Download PDFInfo
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- CN108330848B CN108330848B CN201810196673.7A CN201810196673A CN108330848B CN 108330848 B CN108330848 B CN 108330848B CN 201810196673 A CN201810196673 A CN 201810196673A CN 108330848 B CN108330848 B CN 108330848B
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- high polymer
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
Abstract
A kind of bridge pavement method for repairing and constructing, detections of radar is carried out to transition slab at bridge head section by Ground Penetrating Radar, determine region of coming to nothing caused by Bridgehead by Blastig differential settlement, high polymer is injected into region of coming to nothing by injected hole, plat-bottom escape position is effectively filled, and it can effectively solve the problem that attachment strap absolute altitude, reach equal with abutment, to realize the consolidation effect for the soil body.Meanwhile in high polymer grouting repair process, the accurate grouting amount for determining high polymer avoids high polymer grouting excessively caused road surface lifting.
Description
Technical field
The present invention relates to a kind of highway bridge maintenance and repair technologies, more particularly, to a kind of bridge pavement repairing construction skill
Art.
Background technique
With flourishing for China's economy and being constantly progressive for society, highway bridge is increasing to the effect of people,
All pay much attention to highway bridge construction in all parts of the country.Highway bridge not only becomes the main artery for linking up north and south economy, more can be one
Determine to promote the development of economy in degree.
Currently, China's highway is in fast-developing period, with highway mileage increase and use the time
Extend, road maintenance engineering amount is also increasing.Maintenance project is generally divided into specific aim maintenance and preventive maintenance, and specific aim is supported
Shield refers to when road surface is destroyed, and is taken appropriate measures according to Damage Types, improves the service performance on road surface.It is preventative to support
Shield refers to when bituminous pavement property is still in shape, implements the technologies such as micro-surface area, ultra-thin wearing layer, mist envelope, the cementation of fissures and arranges
It applies road pavement and implements protectiveness maintenance, improve the function status on road surface under the premise of not increasing structural-load-carrying capacity, to prevent
The development of small disease delays serious destruction.
For highway since design speed per hour is high, the sedimentation and deformation and stability requirement to highway are high.Bridgehead by Blastig is uneven
The phenomenon that sedimentation, can have a huge impact the life security of passing vehicle and pedestrian, and only take appropriate measures progress
Control, just can guarantee the quality on road surface.
Bridgehead by Blastig differential settlement causes transition slab at bridge head to come to nothing and then forms bumping at bridge-head, and bumping at bridge-head is universal and multiple
Miscellaneous problem, it is all that it is related to Embankment Subsidence, back filling behind abutment, abutment type, seam, transition slab at bridge head, road surface and construction method etc.
It is multifactor.The immediate cause that transition slab at bridge head comes to nothing is the settlement difference of abutment and roadbed.Abutment is rigid structures, its underpart one
As have a pile foundation, thus the deformation and sedimentation of abutment are very small, and roadbed and ground are flexible, have under load action compared with
Big plastic deformation, so the settling ratio abutment of Bridgehead by Blastig is big, to cause the relative settlement of the two.Once longitudinal poor
Different sedimentation is big, will cause road surface transverse crack, and running car is caused to slow down, jolt, shake, jump the problems such as vehicle, influences driving and relaxes
Adaptive, safety reduce running speed, increase the operation cost of vehicle and highway itself.
High polymer grouting technology has achieved in the rapid-maintenance of the infrastructure such as road, airfield runway and bumping at bridge-head
Very big success.Since high polymer has a characteristic that (1) density is small, ungauged regions, the additional stress generated after maintenance is small；(2)
Speed of application is fast, and without maintenance, the influence to traffic is smaller；(3) material volume expands rapidly when reacting, can be having generated
Settlement difference narrow down to most preferably；(4) slip casting aperture is small, influences on former hazard to bridge's pier globality small；(5) infiltration coefficient is small, material
Expect that waterproof performance is good, and durability is good, pollution-free.So compared with traditional cement injection technology, with very big
Advantage, at home promotional value with higher in the processing of bumping at bridge-head.After Bridgehead by Blastig uses high polymer grouting, board bottom is de-
Empty position is efficiently filled, and can effectively solve the problem that attachment strap absolute altitude, reaches equal with abutment, to realize adding for the soil body
Gu effect, while the position come to nothing in road surface structare layer, crack are filled, moisture is closed, the bearing capacity of pavement structure is promoted.
Since high polymer volume expansion during the reaction prevents high polymer in the prior art in order to control slip casting process
It is lifted road surface, usually needs to monitor the height change on road surface during slip casting by laser level, when there is ground fine motion
Or grouting port slurry stops slip casting when emerging；But monitoring process is complicated, is unable to accurately control grouting amount, and occur ground
When face height change or slurry are emerged, may slip casting it is excessive, cause road surface to continue to be lifted.
Summary of the invention
The present invention provides a kind of bridge pavement repairing construction technology, can be in high polymer grouting repair process, accurately
The grouting amount for determining high polymer avoids high polymer grouting excessively caused road surface lifting.
As one aspect of the present invention, bridge pavement method for repairing and constructing is provided, includes the following steps: that (1) passes through benefit
Detections of radar is carried out to transition slab at bridge head section with Ground Penetrating Radar, determines region of coming to nothing；(2) in regional location setting slip casting of coming to nothing
Hole；(3) it excavates and blocks spillage position of seriously coming to nothing under attachment strap two sides and abutment with concrete after roadbed side slope；(4) pass through slip casting
Implement the first slip casting of high polymer to the region of coming to nothing in hole；(5) after the high polymer solidification of first slip casting of high polymer, pass through
The injected hole is filled the water to the region of coming to nothing；(6) water of the water filling is detected by flow sensing equipment；(7) when described
Injected hole has water body to emerge road surface, records the total Water of the flow sensing equipment at this time；(8) according to the flow sensing equipment
Total Water, by the injected hole to it is described come to nothing region implement the second slip casting of high polymer；(9) filling restores roadbed side slope.
Preferably, further include that step (10) backfills injected hole concrete and pitch cold-repairing material, restore road surface.
Preferably, come to nothing setting multiple injected holes in region described in the step (2), forms slip casting hole array.
Preferably, in the step (8), the water of flow sensing equipment described in the high polymer volume ratio of second slip casting
Low 5% ~ 10%.
Preferably, in the step (4), first slip casting is used to form watertight area in the sections bottom that comes to nothing.
Preferably, the high polymer includes polyurethane material.
Preferably, in the step (8), when the high polymer of the second slip casting solidifies, the water filling of step (5) is discharged.
Preferably, in the step (8), slip casting is carried out by the part injected hole of slip casting hole array.
Specific embodiment
In order to illustrate more clearly of technical solution of the present invention, embodiment will be used simply to be situated between the present invention below
Continue, it should be apparent that, be described below in be only one embodiment of the present of invention, for those of ordinary skill in the art come
It says, without any creative labor, other technical solutions can also be obtained according to these embodiments, also belonged to
Disclosure of the invention range.
The bridge pavement method for repairing and constructing of the embodiment of the present invention, for leading to end of the bridge for Bridgehead by Blastig differential settlement
It is repaired in the region of brow plate emptying.
Implementation steps include the following: (1) by carrying out detections of radar to transition slab at bridge head section using Ground Penetrating Radar when specific,
Determine region of coming to nothing caused by Bridgehead by Blastig differential settlement.
(2) in the regional location setting injected hole that comes to nothing, multiple injected holes can be arranged according to the distribution in region of coming to nothing, is formed
Slip casting hole array.
(3) roadbed side slope is excavated, blocks spillage position of seriously coming to nothing under attachment strap two sides and abutment with concrete.Pass through the step
Suddenly, two sides are on the one hand repaired to come to nothing position, on the other hand avoids the infiltration filled the water in subsequent step.
(4) the first slip casting of high polymer is implemented to the region of coming to nothing by injected hole, which is used in area of coming to nothing
Watertight area is formed on domain bottom.High polymer may include polyurethane material, using the fast foaming coherency of polyurethane foam with
And caking property, it being capable of limited space formation quick blocking.
(5) it after the high polymer solidification of first slip casting of high polymer, is infused by the injected hole to the region of coming to nothing
Water.
(6) when filling the water by the injected hole to the region of coming to nothing, the water filling is detected by flow sensing equipment
Water.
(7) when there is water body to emerge road surface in the injected hole, the total Water of flow sensing equipment detection at this time is recorded.
(8) total Water detected according to the flow sensing equipment, passes through the part injected hole in the slip casting hole array
Implement the second slip casting of high polymer to the region of coming to nothing, remaining injected hole is as drainage hole, for the high polymer in the second slip casting
When solidification, the water filling of step (5) is discharged.Due to the infiltration of water filling and the expansion of high polymer, it is preferred that second slip casting
High polymer volume ratio described in flow sensing equipment total Water low 5% ~ 10%.
(9) after the high polymer solidification of the second slip casting, filling restores roadbed side slope.
(10) injected hole concrete and pitch cold-repairing material are backfilled, restores road surface.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.This hair
Particular features, structures, materials, or characteristics described in bright can be in any one or more of the embodiments or examples with suitable
Mode combines.In addition, without conflicting with each other, those skilled in the art can be by difference described in this specification
The feature of embodiment or example and different embodiments or examples is combined.It is all the spirit and principles in the present invention it
Interior any modification, equivalent replacement, improvement and so on, are included within the scope of protection of the present invention.
Claims (3)
1. a kind of bridge pavement method for repairing and constructing includes the following steps: (1) by utilizing Ground Penetrating Radar to transition slab at bridge head section
Detections of radar is carried out, determines region of coming to nothing；(2) in the regional location setting injected hole that comes to nothing；(3) coagulation is used after excavating roadbed side slope
Grave blocks up under attachment strap two sides and abutment spillage position of seriously coming to nothing；It is characterized by further comprising: (4) are by injected hole to described
Come to nothing region implement the first slip casting of high polymer；(5) after the high polymer solidification of first slip casting of high polymer, pass through the slip casting
Hole is filled the water to the region of coming to nothing；(6) water of the water filling is detected by flow sensing equipment；(7) when the injected hole has
Water body is emerged road surface, and the total Water of the flow sensing equipment at this time is recorded；(8) according to total water of the flow sensing equipment
Amount implements the second slip casting of high polymer to the region of coming to nothing by the injected hole；(9) filling restores roadbed side slope.
2. bridge pavement method for repairing and constructing according to claim 1, it is characterised in that: further include step (10) by slip casting
Hole concrete and the backfill of pitch cold-repairing material, restore road surface.
3. bridge pavement method for repairing and constructing according to claim 2, it is characterised in that: the high polymer includes polyurethane
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810196673.7A CN108330848B (en) | 2018-03-10 | 2018-03-10 | A kind of bridge pavement repairing construction technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810196673.7A CN108330848B (en) | 2018-03-10 | 2018-03-10 | A kind of bridge pavement repairing construction technology |
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| Publication Number | Publication Date |
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| CN108330848A CN108330848A (en) | 2018-07-27 |
| CN108330848B true CN108330848B (en) | 2019-05-31 |
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| CN105586835A (en) * | 2014-10-23 | 2016-05-18 | 马晶晶 | Bump-at-bridge-end disease control high polymer grouting technology and construction method thereof |
| CN105735151A (en) * | 2014-05-26 | 2016-07-06 | 江苏鼎泰工程材料有限公司 | Pavement rehabilitation method |
| CN105887613A (en) * | 2014-05-26 | 2016-08-24 | 江苏鼎泰工程材料有限公司 | Pavement repairing method free of environmental pollution and capable of eliminating vehicle bumping at bridge head |
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2018
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004263542A (en) * | 2003-02-12 | 2004-09-24 | Anderson Technology Kk | Device for injecting grout into cable sheath of pc structure and grout injection method |
| JP2006322267A (en) * | 2005-05-20 | 2006-11-30 | Asuton:Kk | Repair method for concrete |
| CN102051861A (en) * | 2009-11-02 | 2011-05-11 | 郑州优特基础工程维修有限公司 | Bridgehead vehicle bump prevention and control high polymer grouting technique and construction method thereof |
| CN104047235A (en) * | 2014-05-26 | 2014-09-17 | 江苏鼎泰工程材料有限公司 | Method for repairing bridgehead abutment position of road surface |
| CN104047236A (en) * | 2014-05-26 | 2014-09-17 | 江苏鼎泰工程材料有限公司 | Repair method of vehicle bump pavement of bridgehead |
| CN104047237A (en) * | 2014-05-26 | 2014-09-17 | 江苏鼎泰工程材料有限公司 | Pavement restoration method |
| CN105735151A (en) * | 2014-05-26 | 2016-07-06 | 江苏鼎泰工程材料有限公司 | Pavement rehabilitation method |
| CN105887613A (en) * | 2014-05-26 | 2016-08-24 | 江苏鼎泰工程材料有限公司 | Pavement repairing method free of environmental pollution and capable of eliminating vehicle bumping at bridge head |
| CN105586835A (en) * | 2014-10-23 | 2016-05-18 | 马晶晶 | Bump-at-bridge-end disease control high polymer grouting technology and construction method thereof |
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| CN108330848A (en) | 2018-07-27 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20190509 Address after: 810001 No. 5 East Traffic Lane, Chengxi District, Xining City, Qinghai Province Applicant after: Qinghai Hengli Highway Survey and Design Co., Ltd. Address before: 355003 No. 23 Zhongxing Street, Fuan City, Ningde City, Fujian Province Applicant before: Lin Guangqin |
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| CP03 | Change of name, title or address |
Address after: 810008, No. 5 East traffic lane, Chengxi District, Qinghai, Xining Patentee after: Qinghai traffic engineering consulting Co.,Ltd. Address before: 810001 No. 5 East Traffic Lane, Chengxi District, Xining City, Qinghai Province Patentee before: QINGHAI HENGLI ROAD SURVEY AND DESIGN Co.,Ltd. |
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