CN104343077B - A kind of asphalt concrete pavement reflection crack processing method - Google Patents
A kind of asphalt concrete pavement reflection crack processing method Download PDFInfo
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- CN104343077B CN104343077B CN201410569113.3A CN201410569113A CN104343077B CN 104343077 B CN104343077 B CN 104343077B CN 201410569113 A CN201410569113 A CN 201410569113A CN 104343077 B CN104343077 B CN 104343077B
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- 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
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
- E01C7/187—Repairing bituminous covers, e.g. regeneration of the covering material in situ, application of a new bituminous topping
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Abstract
The inventive method relates to bitumen concrete road surface cracks processing method.A kind of asphalt concrete pavement reflection crack processing method, it includes: excised by the asphalt concrete pavement paragraph having local cracks；After bituminous concrete has cut, check that crack situation occurs in basic unit, cut basic unit loose in basic unit, basic unit's waste material that cleaning cuts；At the crack of base layer structure, being longitudinally arranged injected hole, injected hole is along crack intermediate arrangement；Injecting paste material River Bank Stability Portland cement and water mix together striaght cement serosity；Recovering crack asphalt concrete pavement, anti-splitting paster is laid in the layering of bituminous texture layer and glass fiber grid carries out consolidation process, and after recovering road surface structare layer, crack carries out being layered filling compaction from below to up, and compactness is with reference to original design requirement；Carry out pavement monitoring, detect and check and accept.Treatment effect of the present invention is high, and pavement crack processes recovery and puts in place, and the duration is short, low cost, construction safety, and work efficiency is high, has higher using value.
Description
Technical field
The inventive method relates to asphalt concrete pavement, particularly relates to bitumen concrete road surface cracks processing method.
Background technology
On the roads such as high speed, municipal administration, how using bituminous concrete as pavement usage.And asphalt concrete pavement is in using engineering, usually because the reasons such as load, sedimentation, sliding, weather cause road surface crack occur.After crack occurs in asphalt concrete pavement, the method for process is varied, the top-crack typically occurred because load is overweight, and the cementation of fissures, tangent plane can be used to turn over paving etc..But in soft clay area, when there is crack in the especially asphalt concrete pavement on underground structure top, generally conventional crack processing method is difficult with, and processing method requires higher, processes the most thorough, can repeatedly ftracture, even affect road-ability and the service life on road surface.
Summary of the invention
Present invention seek to address that the problems referred to above, it is provided that a kind of bitumen concrete road surface cracks processing method.Treatment effect of the present invention is high, and pavement crack processes recovery and puts in place, and the duration is short, low cost, construction safety, and work efficiency is high, has higher using value.
One asphalt concrete pavement reflection crack processing method of the present invention, it includes:
Step one, excision crack asphalt concrete pavement；Being excised by the asphalt concrete pavement paragraph having local cracks, when excising, with cutting machine by neat for bituminous concrete cutting, excision is to cement stabilized base course top；
Step 2, cuts crack basic unit；After bituminous concrete has cut, check that crack situation occurs in basic unit, cut basic unit loose in basic unit, basic unit's waste material that cleaning cuts；
Step 3, basic crack is holed；At the crack of base layer structure, being longitudinally arranged injected hole, injected hole, along crack intermediate arrangement, uses prospecting boring machine to be drilled into hole termination depth, and boring to keep vertically smoothing out, and degree of skewness is not more than 1%, cleans out in hole；
Step 4, the slip casting cementation of fissures；Injecting paste material River Bank Stability Portland cement and water mix together striaght cement serosity；
Step 5, recovers crack asphalt concrete pavement, and anti-splitting paster and glass fiber grid are laid in the layering of asphalt concrete structure layer；
Treat that roadbed slip casting completes, meet after testing after requiring, clean road surface substrate, then carry out the recovery of pavement structure；After utilizing bored grouting, using anti-splitting paster and glass fiber grid to carry out consolidation process on asphalt concrete structure layer, after recovering road surface structare layer, crack is processed from below to up；The material mix proportion of each layer must be not less than former Pavement Design and require to carry out being layered filling compaction, and compactness is with reference to original design requirement；
Step 6, pavement monitoring, detects and checks and accepts；From occurring that crack is open to traffic to recovery, overall process carries out the tracking and monitoring bituminous concrete section in crack occur, understands road surface change dynamically, uses bearing capacity to test detection, monitors and detection meets relevant code requirement.
Described asphalt concrete pavement reflection crack processing method, in described step 2, the asphalt concrete pavement paragraph having local cracks being excised requirement is: the most trapezoidal form, and surface layer cut coverage is big, and bottom cut coverage is little；Excision is to cement stabilized base course top.
Described asphalt concrete pavement reflection crack processing method, in described step 3, basic crack boring includes at the crack of base layer structure, it is longitudinally arranged injected hole, injected hole is along crack intermediate arrangement, according to geological condition and the penetration of fracture, pitch-row 1-3m, hole depth 3-6m, use prospecting boring machine to be drilled into hole termination depth.
Described asphalt concrete pavement reflection crack processing method, described step 5, when pavement spread, overlaying one layer of anti-splitting paster and layer of glass fiber grid below layer bituminous concrete below and middle surface layer bituminous concrete, upper layer bituminous concrete does not overlays because paving thickness is relatively thin.
Described asphalt concrete pavement reflection crack processing method, step 5 also includes, before paving spills coal tar, first substrate surface is cleaned out, push up in the basic unit having crack area and paste one layer of anti-splitting paster, then lay one layer of grid mesh sheet, then carry out cutting optimal bituminous concrete and pave；After cutting optimal bituminous concrete has paved, re-lay second layer anti-splitting paster and second layer grid mesh sheet, carry out paving of middle surface layer bituminous concrete, until bituminous concrete has paved.
Described asphalt concrete pavement reflection crack processing method, have to meet claimed below during the slip casting cementation of fissures in described step 5:
1) require that slip casting uses batch (-type) slip casting, to returning slurry, grouting pressure 0.5Mpa～0.6Mpa；The strict control hole degree of depth and quality；
2) injecting paste material River Bank Stability Portland cement and water mix together striaght cement serosity, just set the ratio of mud as 0.8:1；
3) grouting amount controls: volume and slurry flow according to pulper determine grouting amount and control grouting amount, strictly control injection speed, forbid quick filling, it is ensured that low stream low speed, the infiltration good to position of loosening, come to nothing to ensure cement grout, it is ensured that subgrade stability.
Described step medium pitch concrete road surface reflection crack processing method, in described step 5 when recovering asphalt concrete pavement structure layer, including: treat that roadbed slip casting completes, meet after testing after requiring, clean road surface substrate；Paving spills coal tar, carries out bituminous concrete and paves reparation, and pave standard, and the bituminous concrete originally designed by road paves standard；In recovery process, the material mix proportion of each layer must be not less than former Pavement Design and require to carry out being layered filling compaction, and compactness is with reference to original design requirement；The material mix proportion of each layer must be not less than former Pavement Design and require to carry out being layered filling compaction, and compactness is with reference to original design requirement.
Described step medium pitch concrete road surface reflection crack processing method, the specification of described anti-splitting paster and requirement be: meets the examination requirements of GB18242-2000, heat resistance 130 DEG C without trickling, without dripping off；Tensile strength and tearing strength >=25KN, 0.2Mpa pressure 30min is waterproof；The specification of glass fiber grid and requirement be: rectangle, tensile strength >=50KN/m, peak load elongation percentage≤3%, mesh size is 12mm × 12mm, resistance to 210 DEG C of high temperature above.
The present invention changes the conventional treatment methods such as the grouting that use was single in the past, anti-excavation.The present invention, by combining soft clay area geology characteristic and the practical situation in crack occurs in asphalt concrete pavement, takes into full account reason crack occur, understands the principle of reflection crack.Use Slice by slice cutting construction technology; bored grouting is deep into root crack occur; principle features is bonded by cement mortar; fill up the fracture void that basic unit exists, reach to enrich purpose, improve the foundation bearing capacity of crack basic unit; so that occurring that the basic unit in crack reaches to design required value; avoid large area to excavate basic unit, more can protect the globality of sub-surface, meet design principle.Treatment effect of the present invention is high, and pavement crack processes recovery and puts in place, and the duration is short, low cost, construction safety, and work efficiency is high, has higher using value.The present invention uses anti-splitting paster and glass fiber grid combination, can be greatly improved the resistance to compression tear factor of asphalt concrete structure layer, for processing the asphalt concrete pavement of Deep Thick Soft Ground Area, have higher using value.
Detailed description of the invention
Below, in conjunction with detailed description of the invention, the present invention is further illustrated.
A kind of asphalt concrete pavement reflection crack processing method, it includes:
Step one, preparation of construction.Deal with scheme according to the situation that crack occurs, carry out the buying of various equipment；
Step 2, excision crack asphalt concrete pavement.Being excised by the asphalt concrete pavement paragraph having local cracks, when excising, with cutting machine by neat for bituminous concrete cutting, split requirement is: be stepped formula from top to down, and surface layer cut coverage is big, diminishes to bottom cut coverage.Excision is to cement stabilized base course top；
Step 3, cuts crack basic unit.After bituminous concrete has cut, check that crack situation occurs in basic unit, cut basic unit loose in basic unit, basic unit's waste material that cleaning cuts；
Step 4, basic crack is holed.At the crack of base layer structure, being longitudinally arranged injected hole, injected hole is along crack intermediate arrangement, and according to geological condition and the penetration of fracture, pitch-row may select 1-3m, and hole depth may select 3-6m, uses prospecting boring machine to be drilled into hole termination depth, and hole bore φ 100mm.Boring to keep vertically smoothing out, and degree of skewness is not more than 1%, cleans out in hole.Boring aperture and the strict whole hole on request of hole depth, before slip casting, protect the injected hole completed, it is to avoid foreign material fall into blocking, affect the quality of slip casting；
Step 5, the slip casting cementation of fissures.Injecting paste material River Bank Stability Portland cement and water mix together striaght cement serosity, just set the ratio of mud as 0.8:1, and slip casting uses batch (-type) slip casting, to returning slurry, grouting pressure 0.5Mpa～0.6MPa；
Step 6, recovers crack bituminous paving, and anti-splitting paster and glass fiber grid are laid in the layering of bituminous texture layer.Treat that roadbed slip casting completes, meet after testing after requiring, clean road surface substrate, then carry out the recovery of pavement structure.The material mix proportion of each layer must be not less than former Pavement Design and require to carry out being layered filling compaction, and compactness is with reference to original design requirement.During pavement spread, needing to overlay below layer bituminous concrete below and middle surface layer bituminous concrete one layer of anti-splitting paster and layer of glass fiber grid, upper layer bituminous concrete does not overlays because paving thickness is relatively thin.Before paving spills coal tar, first clean out substrate surface, push up in the basic unit having crack area and paste one layer of anti-splitting paster, then lay one layer of grid mesh sheet, then carry out cutting optimal bituminous concrete and pave.After cutting optimal bituminous concrete has paved, re-lay second layer anti-splitting paster and second layer grid mesh sheet, carry out paving of middle surface layer bitumen layer, until bituminous concrete upper layer has paved.
Step 7, pavement monitoring, detects and checks and accepts.From occurring that crack is open to traffic to recovery, overall process carries out the tracking and monitoring bituminous concrete section in crack occur, understands road surface change dynamically, uses bearing capacity to test detection, monitors and detection meets relevant code requirement.
There is reflection crack in the asphalt concrete pavement in certain section, after testing asphalt concrete pavement basic unit because of compactness uneven, after life-time service, base layer structure is caused to destroy, longitudinal crack occurs, then reflex to bituminous texture surface layer, thus have impact on the globality on road surface, cause crack to occur on road surface.Use said method to carry out crack treatment, effectively process from root, thus reach the requirement recovering to meet use.
Claims (8)
1. an asphalt concrete pavement reflection crack processing method, it is characterised in that it includes:
Step one, excision crack asphalt concrete pavement；Being excised by the asphalt concrete pavement paragraph having local cracks, when excising, with cutting machine by neat for bituminous concrete cutting, excision is to cement stabilized base course top；
Step 2, cuts crack basic unit；After bituminous concrete has cut, check that crack situation occurs in basic unit, cut basic unit loose in basic unit, basic unit's waste material that cleaning cuts；
Step 3, basic crack is holed；At the crack of base layer structure, being longitudinally arranged injected hole, injected hole, along crack intermediate arrangement, uses prospecting boring machine to be drilled into hole termination depth, and boring to keep vertically smoothing out, and degree of skewness is not more than 1%, cleans out in hole；
Step 4, the slip casting cementation of fissures；Injecting paste material River Bank Stability Portland cement and water mix together striaght cement serosity；
Step 5, recovers crack asphalt concrete pavement, and anti-splitting paster and glass fiber grid are laid in the layering of bituminous texture layer；
Treat that roadbed slip casting completes, meet after testing after requiring, clean road surface substrate, then carry out the recovery of pavement structure；After utilizing bored grouting, using anti-splitting paster and glass fiber grid to carry out consolidation process on bituminous texture layer, after recovering road surface structare layer, crack is processed from below to up；The material mix proportion of each layer must be not less than former Pavement Design requirement, carries out being layered filling compaction, and compactness is with reference to original design requirement；
Step 6, pavement monitoring, detects and checks and accepts；From occurring that crack is open to traffic to recovery, overall process carries out Colophonium section tracking and monitoring crack occur, understands road surface change dynamically, uses bearing capacity to test detection, monitors and detection meets relevant code requirement.
Asphalt concrete pavement reflection crack processing method the most according to claim 1, it is characterized in that, in described step one, the asphalt concrete pavement paragraph having local cracks being excised requirement is: the most trapezoidal form, and surface layer cut coverage is big, and bottom cut coverage is little；Excision is to cement stabilized base course top.
Asphalt concrete pavement reflection crack processing method the most according to claim 1, it is characterized in that, in described step 3, basic crack boring includes at the crack of base layer structure, it is longitudinally arranged injected hole, injected hole is along crack intermediate arrangement, according to geological condition and the penetration of fracture, pitch-row 1-3m, hole depth 3-6m, uses prospecting boring machine to be drilled into hole termination depth.
Asphalt concrete pavement reflection crack processing method the most according to claim 3, it is characterised in that have to meet claimed below during the slip casting cementation of fissures in described step 4:
1) require that slip casting uses batch (-type) slip casting, to returning slurry, grouting pressure 0.5Mpa～0.6MPa；The strict control hole degree of depth and quality；
2) injecting paste material River Bank Stability Portland cement and water mix together striaght cement serosity, just set the ratio of mud as 0.8:1；
3) grouting amount controls: volume and slurry flow according to pulper determine grouting amount and control grouting amount, strictly control injection speed, forbid quick filling, it is ensured that low stream low speed, the infiltration good to position of loosening, come to nothing to ensure cement grout, it is ensured that subgrade stability.
Asphalt concrete pavement reflection crack processing method the most according to claim 1, it is characterized in that, described step 5, when pavement spread, overlaying one layer of anti-splitting paster and layer of glass fiber grid below layer bituminous concrete and middle surface layer bituminous concrete below, upper layer bituminous concrete does not overlays because paving thickness is relatively thin.
Asphalt concrete pavement reflection crack processing method the most according to claim 5, it is characterised in that in described step 5 when recovering asphalt pavement structural layer, including: treat that roadbed slip casting completes, meet after testing after requiring, clean road surface substrate；Paving spills coal tar, carries out bituminous concrete and paves reparation, and pave standard, and the bituminous concrete originally designed by road paves standard；In recovery process, the material mix proportion of each layer must be not less than former Pavement Design and require to carry out being layered filling compaction, and compactness is with reference to original design requirement.
Asphalt concrete pavement reflection crack processing method the most according to claim 6, it is characterized in that, step 5 also includes, before paving spills coal tar, first substrate surface is cleaned out, push up in the basic unit having crack area and paste one layer of anti-splitting paster, then lay layer of glass fiber grid, then carry out cutting optimal bituminous concrete and pave；After cutting optimal bituminous concrete has paved, re-lay second layer anti-splitting paster and second layer glass fiber grid, carry out paving of middle surface layer bituminous concrete, until bituminous concrete upper layer has paved.
8. according to asphalt concrete pavement reflection crack processing method described in claim 1 or 5, it is characterised in that the specification of described anti-splitting paster and requirement be: meet the examination requirements of GB18242-2000, heat resistance 130 DEG C without trickling, without dripping off；Tensile strength and tearing strength >=25KN, 0.2Mpa pressure 30min is waterproof；The specification of glass fiber grid and requirement be: rectangle, tensile strength >=50KN/m, peak load elongation percentage≤3%, mesh size is 12mm × 12mm, resistance to 210 DEG C of high temperature above.
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105603855A (en) * | 2016-01-05 | 2016-05-25 | 杭州修路人科技有限公司 | Method for repairing concrete pavement cracks |
| CN105735079A (en) * | 2016-03-07 | 2016-07-06 | 苏交科集团股份有限公司 | Treatment method for bituminous pavement transverse reflection cracks |
| CN107227679B (en) * | 2017-06-20 | 2019-07-02 | 山东鲁桥建设有限公司 | Cement concrete pavement green transformation and upgrade construction method |
| CN108221537A (en) * | 2018-01-16 | 2018-06-29 | 长沙理工大学 | A kind of quick maintenance method of Rigid-flexible composite of the road seam crossing asphalt surface course |
| CN108677648A (en) * | 2018-05-14 | 2018-10-19 | 裕腾建设集团有限公司 | Prevent asphalt pavement reflective cracking new construction method |
| CN108867230A (en) * | 2018-07-13 | 2018-11-23 | 阜阳师范学院 | A kind of method for repairing and mending of asphalt pavement crack |
| CN108930208A (en) * | 2018-08-21 | 2018-12-04 | 中国十七冶集团有限公司 | A kind of construction method of advanced treating asphalt pavement reflective cracking |
| CN109490971B (en) * | 2018-11-29 | 2020-05-05 | 江苏北极星交通产业集团有限公司 | Detection and repair method for composite pavement void |
| CN110904763A (en) * | 2019-11-25 | 2020-03-24 | 四川路通建设工程有限公司 | Asphalt road reinforcing treatment method |
| CN112030690A (en) * | 2020-08-19 | 2020-12-04 | 中交路桥建设有限公司 | Construction method for treating pavement cracks |
| CN112064445A (en) * | 2020-08-31 | 2020-12-11 | 郑州地铁集团有限公司 | Method for blocking track traffic engineering exploration drilling |
| CN112195702A (en) * | 2020-09-25 | 2021-01-08 | 中冶南方城市建设工程技术有限公司 | Method for setting induction seams of asphalt pavement base |
| CN116065444A (en) * | 2022-12-01 | 2023-05-05 | 成都市青白江区市政工程建设服务中心 | Municipal road crack repairing construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2876154Y (en) * | 2006-02-07 | 2007-03-07 | 曾立富 | Earth work composite material for preventing road reflection cracking |
| CN102071636A (en) * | 2010-12-07 | 2011-05-25 | 山西路桥建设集团有限公司 | Method utilizing geotextiles to dispose pavement reflection cracks |
| CN102704367B (en) * | 2012-07-02 | 2016-02-10 | 河南万里路桥集团有限公司 | The construction technology of reflection cracking in a pavement welding material |
| KR101327860B1 (en) * | 2013-06-14 | 2013-11-11 | 김선정 | Repairing method of concrete pavement |
| CN105926401A (en) * | 2014-06-30 | 2016-09-07 | 上海浦东路桥建设股份有限公司 | Thin layer asphalt concrete structure for inhibiting pavement reflection cracks and paving method |
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