CN105862560A - Method for repairing abutment backwall of pavement without environmental pollution - Google Patents
Method for repairing abutment backwall of pavement without environmental pollution Download PDFInfo
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- CN105862560A CN105862560A CN201610199179.7A CN201610199179A CN105862560A CN 105862560 A CN105862560 A CN 105862560A CN 201610199179 A CN201610199179 A CN 201610199179A CN 105862560 A CN105862560 A CN 105862560A
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- injected hole
- nothing
- soil layer
- hole
- grouting
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000003912 environmental pollution Methods 0.000 title abstract 2
- 239000002689 soil Substances 0.000 claims abstract description 40
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 239000002002 slurry Substances 0.000 claims description 46
- 238000007569 slipcasting Methods 0.000 claims description 20
- 230000001771 impaired effect Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 2
- 238000004062 sedimentation Methods 0.000 abstract description 7
- 239000011440 grout Substances 0.000 abstract 3
- 238000005553 drilling Methods 0.000 abstract 2
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- KQTVWCSONPJJPE-UHFFFAOYSA-N etridiazole Chemical compound CCOC1=NC(C(Cl)(Cl)Cl)=NS1 KQTVWCSONPJJPE-UHFFFAOYSA-N 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
Classifications
-
- 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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/10—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for raising or levelling sunken paving; for filling voids under paving; for introducing material into substructure
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Repair (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to a method for repairing the abutment backwall of a pavement without environmental pollution, which comprises the following steps: detecting the disengagement position in a butt strap of a damaged bridge by utilizing a detection radar, marking the positions of grouting holes I on the surface of the butt strap, and carrying out drilling, wherein the depth of the grouting holes I reaches the hard soil layer, the grouting holes I are arranged in an array mode, the distance between centers of adjacent grouting holes I is 10-20cm, and the disengagement position is in an array range; enabling grouting holes II to penetrate through the soft soil layer and intersect with the grouting holes I, wherein exhaust one-way valves are arranged at two ends of each grouting hole II; carrying out grouting in the grouting holes I, and instantly detecting the grout filling conditions in the disengagement position, the grouting holes I and the grouting holes II by utilizing the three-dimensional detection radar; when the disengagement position, the grouting holes I and the grouting holes II are filled with the grout, stopping grouting; and after stopping grouting, detecting and re-checking the filling part by utilizing the detection radar again, and carrying out drilling and grouting again on the part which is not filled with the grout. The method solves the problem of difference between the sedimentation velocity of the hard soil layer and the sedimentation velocity of the soft soil layer.
Description
Technical field
The method that the present invention relates to carry out at the Bridge back wall of a kind of road pavement repairing, it is possible to repair at Bridge back wall
Multiple, eliminate vehicle bump at bridge ends.
Background technology
Along with being continuously increased of highway in China and railway mileage, the proportion shared by the highway such as bridge, culvert structure is increasingly
Greatly, much generally there is " bumping at bridge-head " phenomenon at the back filling behind abutment of this class formation, so-called " bumping at bridge-head " refers to bridge, culvert
Carry on the back continue sedimentation due to driving load and the effect of deadweight Deng structure itself and platform, tectonic subsidence inconsistent with platform back of the body sedimentation and
The differential settlement produced, causes the platform back of the body step occur with the road surface of structure junction, and the vehicle run at high speed is carried on the back back by platform
The place of filling out produces the phenomenon jumped of jolting.
Occurring that the vertical of above-mentioned phenomenon wants reason to be, general bridge floor is higher than road surface and by bridge pier and roadbed (hard stratum)
It is connected, therefore has between the bridge floor of difference in height and road surface and be connected by attachment strap, need below attachment strap to support this attachment strap
Existing roadbed on heap set artificial soil horizon's (Soft Soil Layer) of compacting, this artificial soil horizon forms for the later stage that therefore to compare former roadbed (hard
Soil layer) softer, bridge all can decline due to natural subsidence effect, the height on its bridge floor and road surface during the later stage runs,
But the infall process of above-mentioned Soft Soil Layer is than hard stratum more faster, therefore occurs between bridge floor and attachment strap that difference in height causes bumping at bridge-head
Phenomenon；Can be formed between Soft Soil Layer and attachment strap simultaneously and come to nothing and make to misplace between bridge floor and attachment strap, thus exacerbate bumping at bridge-head
Phenomenon.
China Patent No. is that the document of CN102051861 proposes and utilizes high polymer material to be injected into coming to nothing bottom attachment strap
Inside eliminate the attachment strap of depression of coming to nothing, promote to eliminate vehicle bump at bridge ends, but the method fails to causing bumping at bridge-head
The differential settling velocity of the different soil of phenomenon takes measures, the problem thus failing to fundamentally solve bumping at bridge-head.
Summary of the invention
The technical problem to be solved in the present invention is to provide the method carrying out at the Bridge back wall of a kind of road pavement repairing, it is possible to
The problem solving hard stratum and Soft Soil Layer differential settling velocity.
In order to solve above-mentioned technical problem, the invention provides the side carrying out repairing at the Bridge back wall of a kind of road pavement
Method, it comprises the steps:
A. utilizing position of coming to nothing in the attachment strap of the detection radar impaired bridge of detection, the surface markers at attachment strap goes out the position come to nothing also
Measure this to come to nothing and the degree of depth of hard stratum；
B. marking the position of injected hole one on attachment strap surface and hole, injected hole one is as deep as hard stratum, and injected hole one is with array side
Formula is arranged, making to come to nothing falls in array range；
C. the side at Soft Soil Layer marks the position of injected hole two and holes, each injected hole two this Soft Soil Layer through and injected hole
One intersects；
D. injected hole one is carried out slip casting and utilizes three-dimensional detection radar immediately to detect to come to nothing and in each injected hole one, injected hole two
The filled therewith situation in portion, comes to nothing when slurry is full of this and stops slip casting when each injected hole one, injected hole two；
E. again with detection radar to filling location detection check after slip casting stops, to not re-started brill by filled therewith
Hole, slip casting；
F., after slip casting terminates 10 minutes, each injected hole one, injected hole two are carried out sealing of hole.
Described injected hole one and a diameter of 3-15cm of injected hole two, the center distance of adjacent injected hole one is 8-25cm.
Described injected hole two level this Soft Soil Layer through and be perpendicular to attachment strap center line, each injected hole one respectively with lower section of coming to nothing
Multiple injected holes two intersect.
The present invention also provides for a kind of reparation slurry, and this slurry carries out the side repaired at the Bridge back wall of above-mentioned road pavement
The slip casting process of method.
This slurry is high intensity foam-type resin.
The elative free swelling ratio of this slurry reaches 20:1, can fill and come to nothing, reach after injecting 10 minutes after injecting 3 minutes
Whole intensity.
The machine viscosity that goes out of this slurry is 100 ± 45mPa s, and its final strength meets compressive strength >=20MPa, bending strength
≥15MPa。
Relative to prior art, what the present invention had has the technical effect that
1) method carrying out at the Bridge back wall of the road pavement of the present invention repairing, by detection radar detection and boring, slip casting phase
In conjunction with, not only filled up below attachment strap come to nothing and lifting attachment strap makes end of the bridge smooth out, also by crossing injected hole one and slip casting
Hole two makes the slurry body after solidification form network structure, attachment strap, Soft Soil Layer and hard stratum is linked into an integrated entity, so that Soft Soil Layer
Keeping consistent with the sedimentation velocity of hard stratum, the sedimentation velocity of attachment strap will keep consistent with hard stratum, prevent Soft Soil Layer and attachment strap
Between formed and come to nothing, thus avoid the vehicle bump at bridge ends that bridge floor and attachment strap cause because of respective differential settling velocity；
2) come to nothing position inject slurry curing after formed a pulp layer, this pulp layer be connected above attachment strap, lower section by slurry
Material column is connected with hard stratum, and injected hole one and slurry column diameter are 5-10cm, it is possible to the fractional load on attachment strap passed through
Slurry column is transferred directly to hard stratum, thus reduces the settling amount after Soft Soil Layer pressurized；Injected hole two and slurry crossbeam diameter
For 5-10cm, it is possible to the attachment strap load making part conduct through Soft Soil Layer is conducted to slurry column through slurry crossbeam, then stands through slurry
Post conduction is to hard stratum, thus reduces the load through Soft Soil Layer conduction, reduces the settling amount of Soft Soil Layer further；Adjacent injected hole
The center distance of one is 10-20cm, not only can make the arrangement of slurry column closely but also be beneficial to hole injected hole one；
3) injected hole two level this Soft Soil Layer through and be perpendicular to attachment strap center line, it is simple to the flowing of slurry during boring and slip casting
With filling, come to nothing lower section Soft Soil Layer in multiple injected hole two intersected with injected hole one is set, it is possible to increasing Soft Soil Layer and
Bonding strength between hard stratum, attachment strap, is simultaneously also beneficial to more load through Soft Soil Layer conduction by slurry crossbeam, slurry
Material column is directly conducted to hard stratum；
4) this slurry water-free high intensity foam-type resin, will not produce drying shrinkage phenomenon, it is possible to dense packing effect comes to nothing；Slurry is solid
Pliability is had with elastic, it is not easy to ftractureing, this resin material has good impermeability simultaneously, can stop rainwater after change
In lower infiltration attachment strap, fracture and seam have good sealing function；
5) this slurry can be filled after injecting 3 minutes and be come to nothing, and reaches its final strength after injecting 10 minutes, and hardening time is short, subtracts
Having lacked engineering time and the impact on traffic, formed foaming shape solid after slurry curing, its density is the 20% of cement mortar, will not
Structure is produced bigger load；
6) elative free swelling ratio of this slurry is up to 20:1, it is possible to Fast Filling comes to nothing, and in expansion process, compacting is come to nothing further
Soil layer around；
7) Stability of Slurry after solidification is strong, is difficult to aging deformation, and its durability is up to a century；
8), after slurry curing, each chemical composition will not be dissolved or decompose and be run off in rainwater, environmentally safe；
9) the attachment strap structure after this slurry is repaired, the later stage, without periodic maintenance, maintenance, decreases maintenance cost.
Accompanying drawing explanation
In order to understand the innovative principle of the explanation present invention and compared to the technical advantage of existing product, below by way of attached
Figure illustrates possible embodiment by the limiting examples applying described principle.In the drawings:
Fig. 1 is the sectional drawing of impaired bridge in the present invention；
Fig. 2 is the sectional drawing of the bridge in the present invention after boring；
Fig. 3 is the top view of the attachment strap being provided with injected hole one in the present invention；
Fig. 4 is the left view of the slurry body in the present invention after solidification.
Detailed description of the invention
Embodiment 1
As it is shown in figure 1, impaired bridge generally comprises: face 1 of mating formation, attachment strap 2, come to nothing 3, bridge floor 4, road surface 5, Soft Soil Layer 6, pan soil
Layer 7.
Come to nothing and be generally present between attachment strap 2 and Soft Soil Layer 6, along with the sedimentation of the Soft Soil Layer volume that comes to nothing can be gradually increased,
Owing to Soft Soil Layer 6 exceeds roadbed, it is simple to hole from side to Soft Soil Layer 6.
As shown in Fig. 1-3, the method carrying out at the Bridge back wall of the road pavement of the present invention repairing, comprise the following steps:
(1) utilizing 3 positions of coming to nothing in the attachment strap of the impaired bridge of three-dimensional detection detections of radar, the surface markers at attachment strap 2 goes out to come to nothing 3
Position and measure this and come to nothing 3 and the degree of depth of hard stratum 7；
(2) mark the position of each injected hole 1 on attachment strap 2 surface above 3 of coming to nothing and hole, a diameter of 5-of injected hole 1
10cm as deep as hard stratum 7, all injected holes 1 are arranged in square array mode, and the center distance of adjacent injected hole 1 is
10-20cm also makes coming to nothing of above-mentioned labelling 3 fall in the array range of described injected hole 1；
(3) side at Soft Soil Layer 6 marks the position of injected hole 29 and holes, each injected hole 29 level this Soft Soil Layer through and
Intersecting at injected hole 1, each injected hole 1 intersects with being located at three injected holes 29 below 3 that come to nothing, and each injected hole 29 hangs down
Straight in attachment strap center line and a diameter of 5-10cm；
(4) installing Grouting Pipe 11 in the position of each injected hole 1, Grouting Pipe 11 stretches to the bottom of injected hole 1, in each slip casting
Installing filling adaptor on pipe 11, debugging grouting equipment is also connected with filling adaptor, and inspection injecting paste material also adds in grouting equipment,
Being provided with at each injected hole 29 two ends only can the check valve of air-out；
(5) injected hole 1 is carried out slip casting and utilizes three-dimensional detection radar immediately to detect to come to nothing 3 and each injected hole 1, injected hole
Filled therewith situation within 29, comes to nothing 3 and stop slip casting when each injected hole 1, injected hole 29 when slurry is full of this；
(6) slip casting stop after again with detection radar detect this come to nothing 3 and each injected hole 1, injected hole 29 in whether also have
Not by filled therewith position, the position that there is above-mentioned situation is re-started boring, slip casting；
(7) waiting after 10 minutes, the slurry curing of filling also reaches final strength, take off check valve and to each injected hole 1,
Injected hole 29 carries out sealing of hole.
Slurry after cured forms slurry body 10 as shown in Figure 4, including multiple rows of by multiple vertical slurry columns
101, the network structure and being full of of slurry crossbeam 103 composition of level is come to nothing the pulp layer 102 of 3, this slurry body 10 and attachment strap 2,
Soft Soil Layer 6 and the fixing connection of hard stratum 7.
Embodiment 2
Heretofore described slurry uses a kind of high intensity foam-type resin, and its model is SZ3, is added by this resin during slip casting
In above-mentioned grouting equipment, the resin viscosity (going out machine viscosity) flowed out from this grouting equipment is 100 ± 45mPa s, this paste resin
Material volume in flowing constantly increases, and its penetrating power is strong, is suitable to quickly arrive and comes to nothing in position or entrance gap, makees at pressure
Be suitable to be expelled from hydrops under with, can fill after above-mentioned slurry injects 3 minutes and come to nothing, reach it after injecting 10 minutes the strongest
Degree, its compressive strength >=20MPa, bending strength >=15MPa.
This slurry has the following characteristics that
(1) this slurry is the most aqueous, will not produce drying shrinkage phenomenon, it is possible to dense packing effect comes to nothing；Pliability and bullet is had after slurry curing
Property, it is not easy to ftractureing, this resin material has good impermeability simultaneously, and rainwater infiltration can be stoped to enter Soft Soil Layer, right
Crack and seam have good sealing function；
(2) forming foaming shape solid after slurry curing, its density is the 20% of cement mortar, structure will not be produced bigger load；
(3) elative free swelling ratio of this slurry is up to 20:1, it is possible to Fast Filling comes to nothing, and in expansion process, compacting is come to nothing further
Soil layer around；
(4) Stability of Slurry after solidification is strong, is difficult to aging deformation, and its durability is up to a century；
(5), after slurry curing, each chemical composition will not be dissolved or decompose and be run off in rainwater, environmentally safe；
(6) the attachment strap structure after this slurry is repaired, the later stage, without periodic maintenance, maintenance, decreases maintenance cost.
Obviously, above-described embodiment is only for clearly demonstrating example of the present invention, and not to the present invention
The restriction of embodiment.For those of ordinary skill in the field, can also be made it on the basis of the above description
The change of its multi-form or variation.Here without also cannot all of embodiment be given exhaustive.And these belong to this
What bright spirit was extended out obviously changes or changes among still in protection scope of the present invention.
Claims (1)
1. the method carrying out at the Bridge back wall of a road pavement repairing, it is characterised in that comprise the steps:
A. utilizing (3) position of coming to nothing in the attachment strap of the detection radar impaired bridge of detection, the surface markers at attachment strap (2) goes out to come to nothing
(3) position is also measured this and is come to nothing (3) and the degree of depth of hard stratum (7)；
B. marking the position of injected hole one (8) on attachment strap (2) surface and hole, injected hole one is as deep as hard stratum (7), injected hole one
(8) arranging with array way, make to come to nothing (3) fall in array range；
C. the side at Soft Soil Layer (6) marks the position of injected hole two (9) and holes, each injected hole two (9) this Soft Soil Layer through
And intersect with injected hole one (8)；
D. injected hole one (8) is carried out slip casting and utilize three-dimensional detection radar immediately detect come to nothing (3) and each injected hole one (8),
The filled therewith situation that injected hole two (9) is internal, comes to nothing (3) and each injected hole one (8), injected hole two (9) when slurry is full of this
Time stop slip casting；
E. again with detection radar to filling location detection check after slip casting stops, to not re-started brill by filled therewith
Hole, slip casting；
F., after slip casting terminates 10 minutes, each injected hole one (8), injected hole two (9) are carried out sealing of hole；
Described injected hole one and a diameter of 3-15cm of injected hole two, the center distance of adjacent injected hole one (8) is 8-25cm；
Described injected hole two (9) level this Soft Soil Layer through and be perpendicular to attachment strap center line, each injected hole one (8) respectively with come to nothing
(3) multiple injected holes two (9) of lower section intersect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610199179.7A CN105862560B (en) | 2014-05-26 | 2014-05-26 | The method repaired at the Bridge back wall of environmentally safe road pavement |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610199179.7A CN105862560B (en) | 2014-05-26 | 2014-05-26 | The method repaired at the Bridge back wall of environmentally safe road pavement |
| CN201410223493.5A CN104047235B (en) | 2014-05-26 | 2014-05-26 | The Bridge back wall place of road pavement carries out the method for repairing |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410223493.5A Division CN104047235B (en) | 2014-05-26 | 2014-05-26 | The Bridge back wall place of road pavement carries out the method for repairing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105862560A true CN105862560A (en) | 2016-08-17 |
| CN105862560B CN105862560B (en) | 2018-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410223493.5A Active CN104047235B (en) | 2014-05-26 | 2014-05-26 | The Bridge back wall place of road pavement carries out the method for repairing |
| CN201610199179.7A Active CN105862560B (en) | 2014-05-26 | 2014-05-26 | The method repaired at the Bridge back wall of environmentally safe road pavement |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410223493.5A Active CN104047235B (en) | 2014-05-26 | 2014-05-26 | The Bridge back wall place of road pavement carries out the method for repairing |
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| Country | Link |
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| CN (2) | CN104047235B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112252111A (en) * | 2020-08-25 | 2021-01-22 | 徐州成瑞建筑科技研究院有限公司 | Desilting and grouting reinforcement method for slab bottom void pavement crack |
| CN112627168A (en) * | 2020-12-23 | 2021-04-09 | 河南长安交通科技发展有限公司 | High-density polymer grouting reinforcement method for roadbed at sunken part of bridge and culvert butt strap |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330848B (en) * | 2018-03-10 | 2019-05-31 | 青海省恒立公路勘测设计有限公司 | A kind of bridge pavement repairing construction technology |
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| JP2000204554A (en) * | 1999-01-08 | 2000-07-25 | Tenox Corp | Reinforcing structure for embankment |
| CN101168957A (en) * | 2007-10-01 | 2008-04-30 | 于心然 | Bridge brow plate emptying shallow layer grouting reinforcement technique |
| CN102052081A (en) * | 2009-11-02 | 2011-05-11 | 郑州优特基础工程维修有限公司 | High polymer grouting technology for treating tunnel void and construction method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112252111A (en) * | 2020-08-25 | 2021-01-22 | 徐州成瑞建筑科技研究院有限公司 | Desilting and grouting reinforcement method for slab bottom void pavement crack |
| CN112627168A (en) * | 2020-12-23 | 2021-04-09 | 河南长安交通科技发展有限公司 | High-density polymer grouting reinforcement method for roadbed at sunken part of bridge and culvert butt strap |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105862560B (en) | 2018-02-02 |
| CN104047235A (en) | 2014-09-17 |
| CN104047235B (en) | 2016-04-27 |
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Inventor after: Chen Zan Inventor before: Zhang Lahua Inventor before: He Weixing Inventor before: Chen Yun |
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Denomination of invention: A method for repairing the bridge head and back of the road surface without pollution to the environment Granted publication date: 20180202 Pledgee: Industrial and Commercial Bank of China Danyang Branch Pledgor: JIANGSU DINGTAI ENGINEERING MATERIAL CO.,LTD. Registration number: Y2024980002806 |