CN105735151A - Pavement rehabilitation method - Google Patents
Pavement rehabilitation method Download PDFInfo
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- CN105735151A CN105735151A CN201610158620.7A CN201610158620A CN105735151A CN 105735151 A CN105735151 A CN 105735151A CN 201610158620 A CN201610158620 A CN 201610158620A CN 105735151 A CN105735151 A CN 105735151A
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- injected hole
- nothing
- attachment strap
- slurry
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000002689 soil Substances 0.000 claims abstract description 37
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 239000002002 slurry Substances 0.000 claims description 49
- 238000007569 slipcasting Methods 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 10
- 230000001771 impaired effect Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 241000521257 Hydrops Species 0.000 claims description 2
- 206010030113 Oedema Diseases 0.000 claims description 2
- 238000004062 sedimentation Methods 0.000 abstract description 6
- 239000011440 grout Substances 0.000 abstract 3
- 238000012423 maintenance Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 239000000463 material 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
- 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
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005516 engineering process Methods 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
- 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
-
- 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
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Road Repair (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention relates to a pavement rehabilitation method. The pavement rehabilitation method comprises the following steps that detection radar is used for detecting the disengagement position of a butt strap of a damaged bridge, the positions of first grouting holes are marked on the surface of the butt strap and are drilled, the first grouting holes reach a hard stratum and are arranged in an array mode, the center-to-center spacing of the adjacent first grouting holes is 10-20 cm, and the disengagement position falls into the array range; second grouting holes penetrate through the hard stratum and intersect with the first grouting holes, and the two ends of each second grouting hole are provided with one-way valves for exhausting air; the first grouting holes are grouted, the three-dimensional detection radar is used for detecting grout filling conditions in the disengagement position, the first grouting holes and the second grouting holes, and grouting is stopped when the disengagement position, the first grouting holes and the second grouting holes are full of the grout; and after grouting is stopped, the detection radar is used for detecting and examining the filling portions again, and the portions which are not filled with grout are drilled and grouted again. The problem that the sedimentation rates of the hard stratum and a soft soil layer are different is solved through the method.
Description
Technical field
The present invention relates to a kind of method for repairing road surface, it is possible to repair at Bridge back wall, eliminate vehicle bump at bridge ends.
Background technology
Along with being continuously increased of highway in China and railway mileage, proportion shared by the highway such as bridge, culvert structure is increasing, " bumping at bridge-head " phenomenon is generally there is at the back filling behind abutment of these class formations a lot, so-called " bumping at bridge-head " refers to that the structure such as bridge, culvert itself and the platform back of the body continue sedimentation due to driving load and the effect of deadweight, the differential settlement that tectonic subsidence is inconsistent with platform back of the body sedimentation and produces, causing the platform back of the body step occur with the road surface of structure junction, the vehicle run at high speed is by producing the phenomenon jumped of jolting at back filling behind abutment.
Occur that the vertical of above-mentioned phenomenon wants reason to be, general bridge floor is higher than road surface and is connected with roadbed (hard stratum) by bridge pier, therefore have between the bridge floor of difference in height and road surface and be connected by attachment strap, heap on the existing roadbed below attachment strap is needed to set artificial soil horizon's (Soft Soil Layer) of compacting in order to support this attachment strap, it is softer that therefore this artificial soil horizon compares former roadbed (hard stratum) for later stage formation, bridge the later stage run during due to natural subsidence effect, the height on its bridge floor and road surface all can decline, but the infall process of above-mentioned Soft Soil Layer is than hard stratum more faster, therefore occur between bridge floor and attachment strap that difference in height causes vehicle bump at bridge ends；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 vehicle bump at bridge ends.
China Patent No. is that the document of CN102051861 proposes and utilizes high polymer material to be injected into the interior attachment strap of depression of coming to nothing, promote that eliminates that comes to nothing bottom attachment strap to eliminate vehicle bump at bridge ends, but the method fails to take measures the differential settling velocity of the different soil causing vehicle bump at bridge ends, 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 a kind of method for repairing road surface, 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 a kind of method for repairing road surface, it comprises the steps:
A. utilize position of coming to nothing in the attachment strap of detection radar or the ultrasonic detection device impaired bridge of detection, mark on the surface of attachment strap
Remember the position come to nothing and measure this and 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., 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 multiple injected holes two with lower section of coming to nothing respectively intersect.
The present invention also provides for a kind of reparation slurry, and this slurry is for the slip casting process of above-mentioned a kind of method for repairing road surface.
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 final strength after injecting 10 minutes after injecting 3 minutes.
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) a kind of method for repairing road surface of the present invention, by detection radar detection and boring, slip casting combines, not only filled up below attachment strap come to nothing and lifting attachment strap makes end of the bridge smooth out, the slurry body after solidification is made to form network structure also by crossing injected hole one and injected hole two, by attachment strap, Soft Soil Layer and hard stratum link into an integrated entity, so that Soft Soil Layer keeps consistent with the sedimentation velocity of hard stratum, the sedimentation velocity of attachment strap will keep consistent with hard stratum, prevent from being formed between Soft Soil Layer and attachment strap coming 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 is connected above attachment strap, lower section is connected with hard stratum by slurry column, injected hole one and slurry column diameter are 5-10cm, fractional load on attachment strap can be transferred directly to hard stratum by slurry column, thus reduce the settling amount after Soft Soil Layer pressurized；Injected hole two and a diameter of 5-10cm of slurry crossbeam, the attachment strap load that part can be made to conduct through Soft Soil Layer is conducted to slurry column through slurry crossbeam, again through slurry column conduction to hard stratum, thus reduce the load through Soft Soil Layer conduction, reduce the settling amount of Soft Soil Layer further；The center distance of adjacent injected hole 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 easy to the flowing of slurry and filling during boring and slip casting, in the Soft Soil Layer of lower section that comes to nothing, multiple injected hole two intersected with injected hole one is set, the bonding strength between Soft Soil Layer and hard stratum, attachment strap can be strengthened, be simultaneously also beneficial to by slurry crossbeam, slurry column, more load through Soft Soil Layer conduction are 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；Pliability is had with elastic, it is not easy to ftractureing, this resin material has good impermeability simultaneously, and rainwater infiltration can be stoped to enter in attachment strap, and fracture and seam have good sealing function after slurry curing；
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, decrease engineering time and the impact on traffic, forming foaming shape solid after slurry curing, its density is the 20% of cement mortar, structure will not be 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, further compacting is come to nothing the soil layer of surrounding；
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 accompanying drawing by the possible embodiment of the limiting examples explanation of 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 shown in Fig. 1, impaired bridge generally comprises: face 1 of mating formation, attachment strap 2, comes to nothing 3, bridge floor 4, road surface 5, Soft Soil Layer 6, hard stratum 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, a kind of method for repairing road surface of the present invention, comprise the following steps:
(1) utilize three-dimensional detection radar or ultrasonic detection device to detect in the attachment strap of impaired bridge to come to nothing 3 positions, the surface markers at attachment strap 2 go out 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 5-10cm of injected hole 1 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
And make 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 intersect 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 is perpendicular to attachment strap center line and a diameter of 5-10cm；
(4) Grouting Pipe 11 is installed in the position of each injected hole 1, Grouting Pipe 11 stretches to the bottom of injected hole 1, each Grouting Pipe 11 is installed filling adaptor, debugging grouting equipment is also connected with filling adaptor, inspection injecting paste material also adds in grouting equipment, and 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 utilize three-dimensional detection radar immediately detect come to nothing 3 and each injected hole 1, injected hole 29 within filled therewith situation, come to nothing 3 and stop slip casting when each injected hole 1, injected hole 29 when slurry is full of this；
(6) after slip casting stops 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, takes off check valve and each injected hole 1, injected hole 29 are carried out sealing of hole.
Slurry after cured forms the slurry body 10 as shown in Fig. 4, come to nothing including multiple rows of network structure being made up of multiple vertical slurry columns 101, the slurry crossbeam 103 of level and being full of 3 pulp layer 102, this slurry body 10 and attachment strap 2, Soft Soil Layer 6 and hard stratum 7 are fixed and are connected.
Embodiment 2
Heretofore described slurry uses a kind of high intensity foam-type resin, its model is SZ3, during slip casting, this resin is added in above-mentioned grouting equipment, the resin viscosity (going out machine viscosity) flowed out from this grouting equipment is 100 ± 45mPa s, this resin slurry volume in flowing constantly increases, its penetrating power is strong, be suitable to quickly arrive and come to nothing in position or entrance gap, be suitable under pressure be expelled from hydrops, can fill after above-mentioned slurry injects 3 minutes and come to nothing, its final strength is reached after injecting 10 minutes, 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 is had with elastic, 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 after slurry curing
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, further compacting is come to nothing the soil layer of surrounding；
(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 is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And these spirit belonging to the present invention are extended out obvious change or variation still in protection scope of the present invention among.
Claims (1)
1. a method for repairing road surface, it is characterised in that comprise the steps:
A. detection radar or ultrasonic detection device is utilized to detect in the attachment strap of impaired bridge to come to nothing (3) position, the surface markers at attachment strap (2) to go out to come to nothing the position of (3) measure this and 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), and injected hole one (8) is arranged with array way, and 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, and each injected hole two (9) this Soft Soil Layer through also intersects with injected hole one (8)；
D. injected hole one (8) is carried out slip casting and utilizes three-dimensional detection radar immediately to detect to come to nothing (3) and filled therewith situation that each injected hole one (8), injected hole two (9) are internal, when slurry is full of this and comes to nothing (3) and stops slip casting when each injected hole one (8), injected hole two (9)；Slurry uses high intensity foam-type resin, and during slip casting, this resin slurry volume in flowing constantly increases, and is suitable under pressure be expelled from hydrops；
E., after slip casting terminates 10 minutes, each injected hole one (8), injected hole two (9) are carried out sealing of hole, and make attachment strap, Soft Soil Layer and hard stratum link into an integrated entity；
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) multiple injected holes two (9) with (3) lower section of coming to nothing respectively intersect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610158620.7A CN105735151B (en) | 2014-05-26 | 2014-05-26 | A kind of method for repairing road surface |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610158620.7A CN105735151B (en) | 2014-05-26 | 2014-05-26 | A kind of method for repairing road surface |
| CN201410223554.8A CN104047237B (en) | 2014-05-26 | 2014-05-26 | A kind of method for repairing road surface |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410223554.8A Division CN104047237B (en) | 2014-05-26 | 2014-05-26 | A kind of method for repairing road surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105735151A true CN105735151A (en) | 2016-07-06 |
| CN105735151B CN105735151B (en) | 2017-07-21 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610158620.7A Active CN105735151B (en) | 2014-05-26 | 2014-05-26 | A kind of method for repairing road surface |
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| CN (1) | CN105735151B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354937A (en) * | 2017-07-03 | 2017-11-17 | 中建市政工程有限公司 | Construction method for effectively relieving bridge head butt strap settlement and vehicle jumping |
| CN108330848A (en) * | 2018-03-10 | 2018-07-27 | 林光琴 | A kind of bridge pavement repairing construction technology |
| CN108385549A (en) * | 2018-03-25 | 2018-08-10 | 林光琴 | A kind of bridge pavement method for repairing and constructing |
| CN108981590A (en) * | 2018-06-13 | 2018-12-11 | 中铁隧道集团二处有限公司 | A kind of high-speed rail precast beam positioning system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354937A (en) * | 2017-07-03 | 2017-11-17 | 中建市政工程有限公司 | Construction method for effectively relieving bridge head butt strap settlement and vehicle jumping |
| CN108330848A (en) * | 2018-03-10 | 2018-07-27 | 林光琴 | A kind of bridge pavement repairing construction technology |
| 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 |
| CN108385549A (en) * | 2018-03-25 | 2018-08-10 | 林光琴 | A kind of bridge pavement method for repairing and constructing |
| CN108981590A (en) * | 2018-06-13 | 2018-12-11 | 中铁隧道集团二处有限公司 | A kind of high-speed rail precast beam positioning system |
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| Publication number | Publication date |
|---|---|
| CN105735151B (en) | 2017-07-21 |
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Inventor after: Chen Zan Inventor before: Chen Guoxian Inventor before: He Weixing Inventor before: Wu Guoping |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Road Repair Method Granted publication date: 20170721 Pledgee: Industrial and Commercial Bank of China Danyang Branch Pledgor: JIANGSU DINGTAI ENGINEERING MATERIAL CO.,LTD. Registration number: Y2024980002806 |