CN104047237A - Pavement restoration method - Google Patents
Pavement restoration method Download PDFInfo
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- CN104047237A CN104047237A CN201410223554.8A CN201410223554A CN104047237A CN 104047237 A CN104047237 A CN 104047237A CN 201410223554 A CN201410223554 A CN 201410223554A CN 104047237 A CN104047237 A CN 104047237A
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- injected hole
- nothing
- slurry
- soil layer
- grouting
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000002002 slurry Substances 0.000 claims abstract description 54
- 239000002689 soil Substances 0.000 claims abstract description 39
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 238000007569 slipcasting Methods 0.000 claims description 14
- 230000001771 impaired effect Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000011800 void material Substances 0.000 abstract 4
- 238000005553 drilling Methods 0.000 abstract 1
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 230000002431 foraging effect Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000002910 structure generation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000009191 jumping Effects 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
Abstract
The invention relates to a pavement restoration method. The pavement restoration method comprises the steps that a detection radar is utilized for detecting the void positions in a butting plate of a damaged bridge, the positions of grouting holes I are marked on the surface of the butting plate and are drilled, and the grouting holes I are deep to a hard soil layer, and are distributed in an array mode; the distance between the centers of the adjacent grouting holes is 10-20cm and the void positions fall in the array range; all grouting holes II penetrate through a soft soil layer and are intersected with the grouting holes I; the two ends of all the grouting holes are provided with exhausting one-way valves; grouting is carried out on the grouting holes I, and the three-dimensional detection radar is utilized for detecting the filling conditions of slurry in the void positions, all the grouting holes I and all the grouting holes II, and the grouting is stopped when the void positions, all the grouting holes I and all the grouting holes II are filled with slurry; after the grouting is stopped, the detecting radar is utilized for detecting and rechecking the filled parts, and drilling and grouting are carried out again on the parts without being filled with the slurry. The pavement restoration method has the advantage that the problem of the settling velocity difference between the hard soil layer and the soft soil layer is solved.
Description
Technical field
The present invention relates to a kind of method for repairing road surface, can repair end of the bridge platform back of the body place, eliminate vehicle bump at bridge ends.
Background technology
Continuous increase along with highway in China and railway mileage, it is increasing that the highway such as bridge, culvert is constructed shared proportion, back filling behind abutment place ubiquity " bumping at bridge-head " phenomenon of a lot of these class formations, so-called " bumping at bridge-head " refers to that the effect that the structures itself such as bridge, culvert and platform are carried on the back due to driving load and deadweight continues sedimentation, inconsistent and the differential settlement that produces of tectonic subsidence and platform back of the body sedimentation, cause the platform back of the body and the road surface of structure junction to occur step, the vehicle of running at high speed produces the phenomenon of jolting and jumping by back filling behind abutment place.
Occur that the vertical of above-mentioned phenomenon want reason to be, general bridge floor will be connected with roadbed (hardpan) higher than road surface and by bridge pier, between the bridge floor therefore with difference in height and road surface, by attachment strap, be connected, in order to support this attachment strap, need on the existing roadbed below attachment strap, pile the artificial soil horizon's (Soft Soil Layer) who establishes compacting, therefore to compare former roadbed (hardpan) softer for the later stage forms for this artificial soil horizon, bridge in later stage operation process due to natural subsidence effect, the height on its bridge floor and road surface all can decline, yet the infall process of above-mentioned Soft Soil Layer is faster than hardpan, therefore between bridge floor and attachment strap, occur that difference in height causes vehicle bump at bridge ends, between while Soft Soil Layer and attachment strap, meeting forms to come to nothing and make and misplaces between bridge floor and attachment strap, thereby has aggravated vehicle bump at bridge ends.
China Patent No. is that the document of CN102051861 has proposed to utilize high polymer material to be injected into the interior attachment strap that comes to nothing, promotes depression of eliminating of coming to nothing of attachment strap bottom to eliminate vehicle bump at bridge ends, yet the method is failed to causing that the settling rate difference of the different soil of vehicle bump at bridge ends takes measures, therefore fail fundamentally to solve the problem of 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, can solve the problem of hardpan and Soft Soil Layer settling rate difference.
In order to solve the problems of the technologies described above, the invention provides a kind of method for repairing road surface, it comprises the steps:
A. utilize detection radar or ultrasonic detection device to detect to come to nothing in the attachment strap of impaired bridge position, the position that goes out to come to nothing in the surface markers of attachment strap is also measured this and is come to nothing and the degree of depth of hardpan;
B. on attachment strap surface, mark position the boring of injected hole one, injected hole one reaches hardpan deeply, and injected hole one is with array way layout, and making to come to nothing falls within the scope of array;
C. in the side of Soft Soil Layer, mark position the boring of injected hole two, each injected hole two connects this Soft Soil Layer and intersects with injected hole one;
D. injected hole one is carried out to slip casting and utilize instant detection of three-dimensional detection radar to come to nothing and the slurry of each injected hole one, injected hole two inside is filled situation, when slurry is full of this, comes to nothing and stop slip casting when each injected hole one, injected hole two;
E. slip casting finished after 10 minutes, and each injected hole one, injected hole two are carried out to sealing of hole.
Described injected hole one is 3-15cm with the diameter of injected hole two, and the center distance of adjacent injected hole one is 8-25cm.
Described injected hole two levels connect this Soft Soil Layer and perpendicular to attachment strap center line, each injected hole one intersects with a plurality of injected holes two of the below of coming to nothing respectively.
The present invention also provides 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 strength foam-type resin.
The elative free swelling ratio of this slurry reaches 20:1, after injecting 3 minutes, can fill and come to nothing, and injects and reaches final strength after 10 minutes.
The machine viscosity that goes out of this slurry is 100 ± 45mPas, and its final strength meets compressive strength >=20MPa, bending strength >=15MPa
With respect to prior art, the technique effect that the present invention has is:
1) a kind of method for repairing road surface of the present invention, by detection radar, detect and boring, slip casting combines, the also lifting attachment strap that comes to nothing of not only having filled up attachment strap below makes end of the bridge smooth-going, the slurry bodily form after also making to solidify by crossing injected hole one and injected hole two reticulates structure, by attachment strap, Soft Soil Layer and hardpan link into an integrated entity, thereby the settling rate of Soft Soil Layer and hardpan is consistent, the settling rate of attachment strap will be consistent with hardpan, prevent from forming and coming to nothing between Soft Soil Layer and attachment strap, thereby avoid bridge floor and attachment strap because of settling rate difference causes separately vehicle bump at bridge ends,
2) come to nothing after the slurry curing that position injects and form a pulp layer, this pulp layer top connects attachment strap, below is connected with hardpan by slurry column, injected hole one and slurry column diameter are 5-10cm, fractional load on attachment strap directly can be passed to hardpan by slurry column, thereby reduce the settling amount after Soft Soil Layer pressurized; Injected hole two and slurry crossbeam diameter are 5-10cm, can make part through slurry crossbeam, conduct to slurry column through the attachment strap load of Soft Soil Layer conduction, through slurry column, conduct to hardpan again, thereby reduce the load through Soft Soil Layer conduction, further reduce the settling amount of Soft Soil Layer; The center distance of adjacent injected hole one is 10-20cm, not only can make slurry column arrange closely but also be beneficial to injected hole one is holed;
3) injected hole two levels connect this Soft Soil Layer and perpendicular to attachment strap center line, be convenient to the mobile and filling of slurry in boring and slip casting process, injected hole two a plurality of and that injected hole one is crossing is set in the Soft Soil Layer below coming to nothing, can strengthen the bonding strength between Soft Soil Layer and hardpan, attachment strap, also be conducive to more load through Soft Soil Layer conduction to be directly conducted to hardpan by slurry crossbeam, slurry column simultaneously;
4) the water-free high strength foam-type resin of this slurry, can not produce drying shrinkage phenomenon, can closely knit filling come to nothing; After slurry curing, have pliability and elasticity, be not easy to ftracture, this resin material has good impermeability simultaneously, can stop rainwater infiltration to enter in attachment strap, and fracture and seam have good sealing function;
5) this slurry injects after 3 minutes and can fill and come to nothing, and injects and reaches its final strength after 10 minutes, and hardening time is short, engineering time and the impact on traffic have been reduced, after slurry curing, form foaming shape solid, its density is cement paste 20%, can be to the larger load of structure generation;
6) elative free swelling ratio of this slurry can reach 20:1, can come to nothing by Fast Filling, and the further compacting soil layer around that comes to nothing in expansion process;
7) Stability of Slurry after solidifying is strong, is difficult for aging distortion, and its durability can reach a century;
8), after slurry curing, each chemical composition can not dissolved or decompose in rainwater and be run off, environmentally safe;
9) the attachment strap structure after this slurry is repaired, the later stage, without periodic maintenance, maintenance, has reduced maintenance cost.
Accompanying drawing explanation
In order to clearly demonstrate innovative principle of the present invention and than the technical advantage of existing product, by applying the limiting examples of described principle, possible embodiment to be described by means of accompanying drawing below.In the drawings:
Fig. 1 is the profile of impaired bridge in the present invention;
Fig. 2 is the profile of the bridge after boring in the present invention;
Fig. 3 is provided with the top view of the attachment strap of injected hole one in the present invention;
Fig. 4 is the left view of the slurry body after solidifying in the present invention.
The specific embodiment
Embodiment 1
As shown in Figure 1, impaired bridge generally comprises: the face 1 of mating formation, attachment strap 2, comes to nothing 3, bridge floor 4, road surface 5, Soft Soil Layer 6, hardpan 7.
Come to nothing and generally appear between attachment strap 2 and Soft Soil Layer 6, along with the sedimentation of the Soft Soil Layer volume that comes to nothing can increase gradually, because Soft Soil Layer 6 exceeds roadbed, be convenient to from the side Soft Soil Layer 6 be holed.
As shown in Fig. 1-3, a kind of method for repairing road surface of the present invention, comprises the following steps:
(1) utilize three-dimensional detection radar or ultrasonic detection device to detect to come to nothing in the attachment strap of impaired bridge 3 positions, in the surface markers of attachment strap 2 go out to come to nothing 3 position measure this and come to nothing 3 and the degree of depth of hardpan 7;
(2) on attachment strap 2 surfaces of coming to nothing above 3, mark position the boring of each injected hole 1, the diameter of injected hole 1 is 5-10cm and deeply reaches hardpan 7, all injected holes 1 arrange in square array mode, and the center distance of adjacent injected hole 1 is 10-20cm and coming to nothing of above-mentioned mark 3 fallen within the scope of the array of described injected hole 1;
(3) in the side of Soft Soil Layer 6, mark position the boring of injected hole 29, each injected hole 29 levels connect this Soft Soil Layer and intersect at injected hole 1, each injected hole 1 intersects with three injected holes 29 of being located at 3 belows of coming to nothing, and each injected hole 29 is 5-10cm perpendicular to attachment strap center line and diameter;
(4) in the position of each injected hole 1, Grouting Pipe 11 is installed, Grouting Pipe 11 stretches to the bottom of injected hole 1, in each Grouting Pipe 11, filling adaptor is installed, debugging grouting equipment is also connected with filling adaptor, check injecting paste material also adds in grouting equipment, at each injected hole 29 two ends, is provided with the one way valve that only can discharge air;
(5) injected hole 1 is carried out to slip casting and utilize three-dimensional detection radar instant detect come to nothing 3 and the slurry of each injected hole 1, injected hole 29 inside fill situation, when slurry is full of this, come to nothing 3 and stop slip casting when each injected hole 1, injected hole 29;
(6) slip casting after stopping, again utilizing detection radar detect this come to nothing 3 and each injected hole 1, injected hole 29 in whether also have and do not filled position by slurry, to existing the position of above-mentioned situation to re-start boring, slip casting;
(7) after waiting for 10 minutes, the slurry curing of filling also reaches final strength, takes off one way valve and each injected hole 1, injected hole 29 are carried out to sealing of hole.
Slurry after solidifying forms slurry body 10 as shown in Figure 4, comprise the net structure that many rows are comprised of the slurry crossbeam 103 of a plurality of vertical slurry columns 101, level and be full of 3 the pulp layer 102 of coming to nothing, this slurry body 10 is fixedly connected with attachment strap 2, Soft Soil Layer 6 and hardpan 7.
Embodiment 2
Slurry described in the present invention adopts a kind of high strength foam-type resin, its model is SZ3, during slip casting, this resin is added in above-mentioned grouting equipment, the resin viscosity flowing out from this grouting equipment (going out machine viscosity) is 100 ± 45mPas, this resin slurry volume in flowing constantly increases, its penetrating power is strong, be suitable for arriving fast the position or enter in gap of coming to nothing, be suitable under pressure squeezing ponding, after above-mentioned slurry injects 3 minutes, can fill and come to nothing, inject and reach its final strength after 10 minutes, its compressive strength >=20MPa, bending strength >=15MPa.
This slurry has following characteristics:
(1) this slurry is not moisture, can not produce drying shrinkage phenomenon, can closely knit filling come to nothing; After slurry curing, have pliability and elasticity, be not easy to ftracture, this resin material has good impermeability simultaneously, can stop rainwater infiltration to enter Soft Soil Layer, and fracture and seam have good sealing function;
(2) after slurry curing, form foaming shape solid, its density is cement paste 20%, can be to the larger load of structure generation;
(3) elative free swelling ratio of this slurry can reach 20:1, can come to nothing by Fast Filling, and the further compacting soil layer around that comes to nothing in expansion process;
(4) Stability of Slurry after solidifying is strong, is difficult for aging distortion, and its durability can reach a century;
(5), after slurry curing, each chemical composition can not dissolved or decompose in rainwater and be run off, environmentally safe;
(6) the attachment strap structure after this slurry is repaired, the later stage, without periodic maintenance, maintenance, has reduced maintenance cost.
Obviously, above-described embodiment is only for example of the present invention is clearly described, 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 exhaustive without also giving all embodiments.And these belong to apparent variation that spirit of the present invention extended out or change still among protection scope of the present invention.
Claims (3)
1. a method for repairing road surface, is characterized in that comprising the steps:
A. utilize detection radar or ultrasonic detection device to detect to come to nothing in the attachment strap of impaired bridge (3) position, the surface markers of attachment strap (2) go out to come to nothing (3) position and measure this and come to nothing (3) and the degree of depth of hardpan (7);
B. on attachment strap (2) surface, mark position the boring of injected hole one (8), injected hole one reaches hardpan (7) deeply, and injected hole one (8) is with array way layout, and make to come to nothing (3) fall within the scope of array;
C. in the side of Soft Soil Layer (6), mark position the boring of injected hole two (9), each injected hole two (9) connects this Soft Soil Layer and intersects with injected hole one (8);
D. injected hole one (8) is carried out to slip casting and utilize instant detection of three-dimensional detection radar to come to nothing (3) and each injected hole one (8), the inner slurry of injected hole two (9) are filled situation, 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);
E. slip casting finished after 10 minutes, and each injected hole one (8), injected hole two (9) are carried out to sealing of hole.
2. a kind of method for repairing road surface according to claim 1, is characterized in that: described injected hole one is 3-15cm with the diameter of injected hole two, and the center distance of adjacent injected hole one (8) is 8-25cm.
3. a kind of method for repairing road surface according to claim 1, is characterized in that: described injected hole two (9) levels connect this Soft Soil Layer and perpendicular to attachment strap center line, each injected hole one (8) intersects with a plurality of injected holes two (9) of (3) below of coming to nothing respectively.
Priority Applications (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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410223554.8A CN104047237B (en) | 2014-05-26 | 2014-05-26 | A kind of method for repairing road surface |
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| CN201610158620.7A Division CN105735151B (en) | 2014-05-26 | 2014-05-26 | A kind of method for repairing road surface |
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| Publication Number | Publication Date |
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| CN104047237A true CN104047237A (en) | 2014-09-17 |
| CN104047237B CN104047237B (en) | 2016-04-20 |
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| CN201410223554.8A Active CN104047237B (en) | 2014-05-26 | 2014-05-26 | A kind of method for repairing road surface |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544368A (en) * | 2015-12-07 | 2016-05-04 | 江美娣 | Method and system for pre-repairing road before road damage |
| 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 |
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| EP0456331A1 (en) * | 1990-05-10 | 1991-11-13 | Voorbij Groep B.V. | Method for the displacement of a slab-shaped carrier, and seal therefor |
| CN101168957A (en) * | 2007-10-01 | 2008-04-30 | 于心然 | Bridge brow plate emptying shallow layer grouting reinforcement technique |
| CN101967794A (en) * | 2010-09-18 | 2011-02-09 | 余闯 | New technology for treating vehicle bump at bridge ends |
| 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 |
| CN102127890A (en) * | 2011-03-31 | 2011-07-20 | 湖南恒盾岩土工程注浆科技有限公司 | Reinforcing construction method of existing railway subgrade |
| CN102392402A (en) * | 2011-11-11 | 2012-03-28 | 中铁六局集团有限公司 | Road and bridge transition section grouting construction method used during jacking construction |
| CN103669385A (en) * | 2013-12-30 | 2014-03-26 | 中铁二十四局集团有限公司 | Method for improving pile group bearing capacity by means of reticular pile foundations |
-
2014
- 2014-05-26 CN CN201410223554.8A patent/CN104047237B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0456331A1 (en) * | 1990-05-10 | 1991-11-13 | Voorbij Groep B.V. | Method for the displacement of a slab-shaped carrier, and seal therefor |
| CN101168957A (en) * | 2007-10-01 | 2008-04-30 | 于心然 | Bridge brow plate emptying shallow layer grouting reinforcement technique |
| 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 |
| CN101967794A (en) * | 2010-09-18 | 2011-02-09 | 余闯 | New technology for treating vehicle bump at bridge ends |
| CN102127890A (en) * | 2011-03-31 | 2011-07-20 | 湖南恒盾岩土工程注浆科技有限公司 | Reinforcing construction method of existing railway subgrade |
| CN102392402A (en) * | 2011-11-11 | 2012-03-28 | 中铁六局集团有限公司 | Road and bridge transition section grouting construction method used during jacking construction |
| CN103669385A (en) * | 2013-12-30 | 2014-03-26 | 中铁二十四局集团有限公司 | Method for improving pile group bearing capacity by means of reticular pile foundations |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544368A (en) * | 2015-12-07 | 2016-05-04 | 江美娣 | Method and system for pre-repairing road before road damage |
| 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 |
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| Publication number | Publication date |
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| CN104047237B (en) | 2016-04-20 |
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Inventor after: Chen Zan Inventor before: Chen Guoxian Inventor before: He Weixing Inventor before: Wu Guoping |
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Denomination of invention: A Road Repair Method Granted publication date: 20160420 Pledgee: Industrial and Commercial Bank of China Danyang Branch Pledgor: JIANGSU DINGTAI ENGINEERING MATERIAL CO.,LTD. Registration number: Y2024980002806 |
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