CN103952966A - Novel road foundation repair method - Google Patents
Novel road foundation repair method Download PDFInfo
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- CN103952966A CN103952966A CN201410199485.1A CN201410199485A CN103952966A CN 103952966 A CN103952966 A CN 103952966A CN 201410199485 A CN201410199485 A CN 201410199485A CN 103952966 A CN103952966 A CN 103952966A
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Abstract
The invention discloses a novel road foundation repair method, which is high in repair speed and high in safety performance, and can prolong the service life of a repaired road and save the maintenance costs. The method is characterized by comprising the following steps: (1) detecting a pavement base layer by a falling weight deflectometer (FWD) or a ground penetrating radar (GPR) to determine that a pavement suffers from a shallow pavement disease or a deep pavement disease according to pavement bearing capacity data displayed by falling weight deflection and the detection result of an inversion image of the GPR, and executing the step (2) to deal with the shallow pavement disease, executing the step (3) to deal with the deep pavement disease, or repairing the shallow part and the deep part of the pavement sequentially to deal with the shallow pavement disease and the deep pavement disease; (2) repairing to deal with the shallow pavement disease; and (3) repairing to deal with the deep pavement disease.
Description
Technical field
The invention belongs to recovery technique field, road surface, especially a kind of new road basis restorative procedure of repairing that speed is fast, security performance is high, can extending the application life of road after repairing and save maintenance cost.Be applied to roadbed, road surface, highway, railway, building, dam detection and maintenance field.
Background technology
Current; the advanced road construction of China is in the stage of developing rapidly; it is the most great-hearted period of history in Chinese transportation history; because Chinese advanced road construction is started late; the reasons such as traffic loading that simultaneously cause due to less technical force's deposit, poor, the climatic effect of raw material, economic base that lacks high-quality, the serious overload of vehicle etc.; cause express highway pavement structure to occur a lot of problems; if these problems obtain necessary detection and maintenance protection not in time, easily cause immeasurable loss.
Detection and the maintenance of the concrete development situation road pavement of China's road construction have proposed stern reality requirement, need actively develop the exploitation and the application that detect with maintenance new technology.
Accurate evaluation roadbed defect is it to be detected to the basis of maintenance.Because highway in China construction is started late, the checkout equipment of evaluating roadbed performance is all relative backward with means and reparation maintenance technology etc.Such as the quality examination of the existing roadbed of China also mainly depends on the method for artificial experience, flexure detects the backman beam that mainly also adopts the invention fifties, and this traditional bowing bent over, the artificial means that carry on one's shoulders or with both hands, not only efficiency is low, and representative poor, and safety is also poor.On the other hand, in maintenance of surface process, owing to can not the functional performance of road network being made the evaluation of comprehensive and reasonable, the irrationality that causes maintenance scheme and maintenance fund allocation, prior one side of while, efficient owing to lacking, fast, roadbed that durability is strong repairs maintenance new technology, make mainly to adopt excavation for the existing reparation due to Problems On Subgrade, again the method for surfacing again after compacted subgrade.This method is obviously time-consuming and will spend a large amount of funds, and the social influence causing is very huge.More domestic units also study and adopt the method for slip casting to process Problems On Subgrade, it is mainly cement mud jacking method, although this method duration goes up shorter relatively, but exist mud jacking hole larger, road pavement has that certain infringement, mud jacking pressure are not easy to control, the mobility of slurries is bad, need certain curing time, the bad deficiency that waits of endurance quality.
Increase day by day due to modern society's traffic pressure, the situation of various road surface breakages is more and more frequent, speedway rigid pavement occurs after breakage, general employing all cuts the concrete that destroys position, then build this damaged part of normal silicate concrete repair, after having repaired, watering maintenance 7 days, then open current.But the swift and violent situation about increasing of traffic pressure for current express highway pavement, once sealing is repaired the roads for a long time, will inevitably cause the obstruction in other section, thereby cause more serious traffic problems.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of new road basis restorative procedure that speed is fast, security performance is high, can extend the application life of road after repairing and save maintenance cost of repairing is provided.
The present invention realizes by following technical method: a kind of new road basis restorative procedure, is characterized in that comprising the following steps:
(1) use Falling Weight Deflectometer (FWD) or ground penetrating radar (GPR) sub-surface to detect, the road surface bearing capacity data that show according to the flexure that drops hammer and the testing result of ground penetrating radar inversion chart picture, show that pavement disease type is that shallow position pavement disease or deep-seated are put pavement disease, if shallow position pavement disease, perform step (2), if deep-seated is put pavement disease, perform step (3), if road surface, shallow position and deep-seated are put road surface, there is disease, first repair road surface, shallow position and first repair deep-seated and put pavement construction order and all can;
(2) reparation of shallow position road bed disease
Shallow position road bed disease is the fragmentation of cement stabilized macadam layer, adopts structural type modified polyurethane or the macromolecule modified resin of epoxy resin to carry out slip casting; Shallow position road bed disease is that crack, basic unit are loose, the disease of coming to nothing, and adopts structural type modified polyurethane to carry out slip casting; Specifically comprise the following steps:
1) according to the testing result of FWD or GPR, by disease or the position judgment of the coming to nothing layout of holing, bored behind hole, insert Grouting Pipe, injection head is installed, with structural type modified polymer material A or B, carry out slip casting;
2) after slip casting completes, with FWD or GPR, again detect, if any what do not meet the demands, continue slip casting, until reach requirement;
3) filling gun is shifted out to injected hole, the unnecessary material in cleaning road surface, mends injected hole by modified bitumen envelope;
(3) deep-seated is put the reparation of road bed disease
After the structural type modified polymer material of shallow position solidifies, deep-seated is put to the reparation of road bed disease, adopt structural type modified polyurethane to carry out slip casting, reach to fill and come to nothing, drain the water away, the effect of compacted compacting;
1) according to the testing result of FWD or GPR, the layout of holing, has bored behind hole, inserts Grouting Pipe pipe, and injection head is installed, and with structural type modified polymer material, B carries out slip casting;
2) after slip casting completes, with FWD or GPR, again detect, if any what do not meet the demands, continue slip casting, until reach requirement;
3) filling gun is shifted out to injected hole, the unnecessary material in cleaning road surface, mends injected hole by modified bitumen envelope.
Effect of the present invention is: the present invention uses the structural type modified polymer material of two kinds of different performances for the diverse location of road surface, roadbed, and dissimilar defect is carried out slip casting reparation.For the disease of road surface, roadbed plays quick, economic, practical, pointed maintenance, greatly extend road service time.
The present invention has following features:
(1) pointed, choosing is for traditional grouting method, the present invention adopts the structural type modified polymer material of different performance, for dissimilar road surface, subgrade defect, carry out slip casting reparation, strengthened the supporting capacity on road surface, extend the application life of road after repairing, saved maintenance cost.
(2) repair fast, use this slurry injection technique as long as 30min just can be open to traffic, slip casting process is fast, and traffic is disturbed little;
(3) minimal invasive, the about 16mm of injected hole, is down to minimum to structural damage;
(4) adhesion strength is good, can well bond with the broken soil body;
(5) heat-insulating property is superior, and ageing-resistant performance is good, good corrosion resistance, long service life;
(6) reaction has good mobility, can be full of rapidly the space of complicated shape;
(7) safe, harmful substance contents is all less than the limit standard of Drinking Water;
Below in conjunction with not limiting embodiment, the present invention is described further.
The specific embodiment
A new road basis restorative procedure, comprises the following steps:
(1) use Falling Weight Deflectometer (FWD) or ground penetrating radar (GPR) sub-surface to detect, the road surface bearing capacity data that show according to the flexure that drops hammer and the testing result of ground penetrating radar inversion chart picture, show that pavement disease type is that shallow position pavement disease or deep-seated are put pavement disease, if shallow position pavement disease, perform step (2), if deep-seated is put pavement disease, perform step (3), if road surface, shallow position and deep-seated are put road surface, there is disease, first repair road surface, shallow position and first repair deep-seated and put pavement construction order and all can;
(2) reparation of shallow position road bed disease
Shallow position road bed disease is the fragmentation of cement stabilized macadam layer, adopts the macromolecule modified resins such as structural type modified polyurethane or epoxy resin to carry out slip casting; Shallow position road bed disease is that crack, basic unit are loose, the disease of coming to nothing, and adopts structural type modified polyurethane to carry out slip casting; Specifically comprise the following steps:
1) according to the testing result of FWD or GPR, by disease or the position judgment of the coming to nothing layout of holing, bored behind hole, insert Grouting Pipe, injection head is installed, with structural type modified polymer material A or B, carry out slip casting;
2) after slip casting completes, with FWD or GPR, again detect, if any what do not meet the demands, continue slip casting, until reach requirement;
3) filling gun is shifted out to injected hole, the unnecessary material in cleaning road surface, mends injected hole by modified bitumen envelope;
(3) deep-seated is put the reparation of road bed disease
After the structural type modified polymer material of shallow position solidifies, the reparation of deep-seated being put to basic pavement disease, adopts structural type modified polyurethane to carry out slip casting, reaches to fill and comes to nothing, drain the water away, and the effect of compacted compacting;
1) according to the testing result of FWD or GPR, the layout of holing, has bored behind hole, inserts Grouting Pipe pipe, and injection head is installed, and with structural type modified polymer material, B carries out slip casting;
2) after slip casting completes, with FWD or GPR, again detect, if any what do not meet the demands, continue slip casting, until reach requirement;
3) filling gun is shifted out to injected hole, the unnecessary material in cleaning road surface, mends injected hole by modified bitumen envelope.
Claims (1)
1. a new road basis restorative procedure, is characterized in that comprising the following steps:
(1) use Falling Weight Deflectometer (FWD) or ground penetrating radar (GPR) sub-surface to detect, the road surface bearing capacity data that show according to the flexure that drops hammer and the testing result of ground penetrating radar inversion chart picture, show that pavement disease type is that shallow position pavement disease or deep-seated are put pavement disease, carries out slip casting according to the direction of being put by shallow position to deep-seated; If shallow position pavement disease, execution step (2), if deep-seated is put pavement disease, performs step (3), if road surface, shallow position and deep-seated are put road surface, has disease, first repairs road surface, shallow position and first repaiies deep-seated and put pavement construction; Also can put defect and repair again the order of front position defect and all can carry out according to first repairing deep-seated;
(2) reparation of shallow position road bed disease
Shallow position disease is the fragmentation of cement stabilized macadam layer, adopts structural type modified polyurethane or epoxy resin to carry out slip casting; Shallow position road bed disease is that crack, basic unit are loose, the disease of coming to nothing, and adopts structural type modified polyurethane to carry out slip casting; Specifically comprise the following steps:
1) according to the testing result of FWD or GPR, by disease or the position judgment of the coming to nothing layout of holing, bored behind hole, insert Grouting Pipe, injection head is installed, with structural type modified polymer material A or B, carry out slip casting;
2) after slip casting completes, with FWD or GPR, again detect, if any what do not meet the demands, continue slip casting, until reach requirement;
3) filling gun is shifted out to injected hole, the unnecessary material in cleaning road surface, mends injected hole by modified bitumen envelope;
(3) deep-seated is put the reparation of road bed disease
After the structural type modified polymer material of shallow position solidifies, deep-seated is put to the reparation of road bed disease, adopt structural type modified polyurethane to carry out slip casting, reach to fill and come to nothing, drain the water away, the effect of compacted compacting;
1) according to the testing result of FWD or GPR, the layout of holing, has bored behind hole, inserts Grouting Pipe pipe, and injection head is installed, and with structural type modified polymer material, B carries out slip casting;
2) after slip casting completes, with FWD or GPR, again detect, if any what do not meet the demands, continue slip casting, until reach requirement;
3) filling gun is shifted out to injected hole, the unnecessary material in cleaning road surface, mends injected hole by modified bitumen envelope.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410199485.1A CN103952966A (en) | 2014-05-13 | 2014-05-13 | Novel road foundation repair method |
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| CN201410199485.1A CN103952966A (en) | 2014-05-13 | 2014-05-13 | Novel road foundation repair method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612027A (en) * | 2014-12-24 | 2015-05-13 | 江苏鼎达建筑新技术有限公司 | A geopolymer grouting process for road restoration and reinforcement |
| CN104727207A (en) * | 2015-03-31 | 2015-06-24 | 东南大学 | Structural maintenance and design method of semi-rigid base-layer asphalt pavement |
| CN107217576A (en) * | 2017-06-14 | 2017-09-29 | 广州市市政集团有限公司 | A kind of road quality detection method and system based on FWD and 3D GPRs |
| CN107829422A (en) * | 2017-09-28 | 2018-03-23 | 上海申元岩土工程有限公司 | A kind of method that non-damage drive terrace disease and quick micro- damage repair terrace disease |
| CN108755322A (en) * | 2018-07-02 | 2018-11-06 | 许昌学院 | The pre- fine fisssure slip casting comprehensive strengthening method of cement concrete pavement |
| CN111893826A (en) * | 2020-08-05 | 2020-11-06 | 沈阳工业大学 | Construction method for treating roadbed damage and grouting |
| CN112250822A (en) * | 2020-10-26 | 2021-01-22 | 长春市城建维护集团股份有限公司 | Road grouting repair material and construction method thereof |
| CN114775351A (en) * | 2022-04-29 | 2022-07-22 | 浙江实路工程技术有限公司 | Composite grouting pile treatment process for road deep diseases |
| CN115012289A (en) * | 2022-05-09 | 2022-09-06 | 新疆北新路桥集团股份有限公司 | Minimally invasive treatment method for road deep disease |
| CN117078234A (en) * | 2023-10-17 | 2023-11-17 | 深圳市城市交通规划设计研究中心股份有限公司 | Optimized road network maintenance method, electronic equipment and storage medium |
-
2014
- 2014-05-13 CN CN201410199485.1A patent/CN103952966A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612027A (en) * | 2014-12-24 | 2015-05-13 | 江苏鼎达建筑新技术有限公司 | A geopolymer grouting process for road restoration and reinforcement |
| CN104612027B (en) * | 2014-12-24 | 2017-06-13 | 江苏鼎达建筑新技术有限公司 | For the geopolymer grouting process that road rehabilitation is reinforced |
| CN104727207A (en) * | 2015-03-31 | 2015-06-24 | 东南大学 | Structural maintenance and design method of semi-rigid base-layer asphalt pavement |
| CN104727207B (en) * | 2015-03-31 | 2016-08-17 | 东南大学 | A kind of semi-rigid base asphalt pavement structure maintenance method for designing |
| CN107217576A (en) * | 2017-06-14 | 2017-09-29 | 广州市市政集团有限公司 | A kind of road quality detection method and system based on FWD and 3D GPRs |
| CN107829422A (en) * | 2017-09-28 | 2018-03-23 | 上海申元岩土工程有限公司 | A kind of method that non-damage drive terrace disease and quick micro- damage repair terrace disease |
| CN108755322A (en) * | 2018-07-02 | 2018-11-06 | 许昌学院 | The pre- fine fisssure slip casting comprehensive strengthening method of cement concrete pavement |
| CN111893826A (en) * | 2020-08-05 | 2020-11-06 | 沈阳工业大学 | Construction method for treating roadbed damage and grouting |
| CN112250822A (en) * | 2020-10-26 | 2021-01-22 | 长春市城建维护集团股份有限公司 | Road grouting repair material and construction method thereof |
| CN114775351A (en) * | 2022-04-29 | 2022-07-22 | 浙江实路工程技术有限公司 | Composite grouting pile treatment process for road deep diseases |
| CN114775351B (en) * | 2022-04-29 | 2023-09-19 | 浙江实路工程技术有限公司 | Treatment process for road deep disease composite grouting pile |
| CN115012289A (en) * | 2022-05-09 | 2022-09-06 | 新疆北新路桥集团股份有限公司 | Minimally invasive treatment method for road deep disease |
| CN117078234A (en) * | 2023-10-17 | 2023-11-17 | 深圳市城市交通规划设计研究中心股份有限公司 | Optimized road network maintenance method, electronic equipment and storage medium |
| CN117078234B (en) * | 2023-10-17 | 2024-02-27 | 深圳市城市交通规划设计研究中心股份有限公司 | Optimized road network maintenance method, electronic equipment and storage medium |
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Application publication date: 20140730 |
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