CN100436716C - Breaking method for cement concrete pavement layer - Google Patents
Breaking method for cement concrete pavement layer Download PDFInfo
- Publication number
- CN100436716C CN100436716C CNB2004100779182A CN200410077918A CN100436716C CN 100436716 C CN100436716 C CN 100436716C CN B2004100779182 A CNB2004100779182 A CN B2004100779182A CN 200410077918 A CN200410077918 A CN 200410077918A CN 100436716 C CN100436716 C CN 100436716C
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- broken
- cement concrete
- impact
- old
- road roller
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- 239000004568 cement Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000004575 stone Substances 0.000 claims abstract description 5
- 238000005553 drilling Methods 0.000 claims abstract description 4
- 238000004080 punching Methods 0.000 claims description 4
- 239000011398 Portland cement Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 6
- 239000002344 surface layer Substances 0.000 abstract description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 1
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000004571 lime Substances 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000006062 fragmentation reaction Methods 0.000 description 5
- 230000035939 shock Effects 0.000 description 5
- 238000013467 fragmentation Methods 0.000 description 4
- 239000012467 final product Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Road Repair (AREA)
Abstract
The present invention relates to a breaking method for a cement concrete pavement layer, which solves the problems that when the existing impact road roller is used for crushing old cement concrete pavements, the stamping frequency is high; the required energy is great; the environmental influence on the peripheral buildings of old roads is provided, etc. Firstly, a plurality of holes with different diameters and different depths are drilled on cracked and broken surface layers of cement concrete by an engineering drilling device, and then, two gray graded allocated broken stones of the road base layer are filled into the driven holes, and finally, the pavements are stamped, cracked and broken by using a low-energy impact pavement roller. The present invention is suitable for the reconstruction and the renewal of the old pavements, and the present invention can reduce the required lime and the impact energy for breaking the old pavements, and can reduce vibration and noise influence on the buildings because of construction.
Description
Technical field
The present invention relates to the breaking method of cement concrete pavement layer, particularly relate to and utilize impact road roller that old cement concrete pavement layer is impacted to break or broken method.
Background technology
The fragmentation of cement concrete pavement layer is first procedure that repair on old road, breaks or the height of crushing efficiency directly affects construction speed.In recent years, adopted the broken pavement engineering of impact road roller in carrying out the old pavement reconstruction of triangle or pentagon beater wheel.Owing to broken or broken Cement Concrete Pavement Slab piece big (generally square) at 3～6 meters, plate has certain compression strength and impact resistance again, impact road roller will repeatedly back and forth travel usually and impact old Cement Concrete Pavement Slab piece, it could be broken or fragmentation, wastes time and energy.Simultaneously, excessive impact energy and impact endurance test shock power have produced harmful effect to the building around the old road, and the ambient noise that the impact road roller of macro-energy produces when broken old pavement also is a problem.
For example: the 3rd page of disclosure in No. 02116218.2 manual of Chinese invention patent application, " thickness of cement concrete pavement layer is between 200 millimeters to 300 millimeters usually ... generally want 15 times～25 times punching press; 200 millimeters cement concrete pavements to 300 millimeters thick could be smashed, the road surface will be smashed about 300 millimeters to 900 millimeters fragment usually." again for example: first page of disclosure in the Chinese invention patent application 99107324.X manual, " roller of the present invention is that its impact force is big with the compacting earthward of the big momentum of low frequency, and compacting depth is big ...", impacting in the operation of old Cement Concrete Pavement Slab piece in reality, impact road roller is generally wanted punching press 40 times, back and forth the travelling of impact road roller multipass, time-consuming oil consumption, efficient are not high.It is worthy of note that generally the impact road roller that uses mainly is 25kj energy and the type of engine power more than 200 kilowatts in the operation of the old Cement Concrete Pavement Slab piece of impact grinding.The impact force of surface layer is at number meganewton (hundreds of ton) because this kind type impact road roller satisfies the need, the building (and mostly having building around the old pavement) that has influence on the old pavement both sides is again transmitted in the fluctuation of impact force, crosses macro-energy, too much the travel impact grinding of pass can not be underestimated the harmful effect of building.Anhui Province once used the broken old cement concrete pavement of shock wave vertical survey instrument (PPV detector) impact to do detection, and according to testing result determine the excavation shock insulation bring reduce impact road roller repeatedly shock wave to the influence of building.
According to the actual conditions on the broken road surface of existing impact road roller, in disclosed industry job specfication (exposure draft), stipulated to excavate shockproof ditch or reduce measures such as travel speed reduce impact road roller repeatedly shock wave to the influence of building.The report of house owed by a citizen is close on the road of shattering when the broken old pavement of impact road roller has been arranged recently, and the resultant common people stop the situation of construction also to happen occasionally.
In view of there is certain technological progress on the broken old concrete of equipment such as the relative Hydraulic pick of impact road roller, air drill road surface, but because travel times energy many, that produce are big in its shattering process, the building influence that old road is close to is added and is carried out precautions against earthquakes (as: excavating shockproof ditch etc.) again, thereby comprehensive benefit awaits improving.Because the problem of above several aspects can not solve, some road is close to the many old concrete highway sections of building and is used the broken concrete road surface technology of existing impact road roller can't break or the construction operation of broken cement concrete pavement at all.
Summary of the invention
The purpose of this invention is to provide a kind of broken or broken cement concrete pavement layer on carry out earlier that bore process cooperates impact road roller to impact to break again or the method on broken road surface.
Another object of the present invention be reduce impact road roller impact break or during broken old pavement to the vibration influence and the influence of noise of surrounding buildings thing.
Another object of the present invention is to reduce the required time of broken old pavement, reduces broken road surface cost.
The method according to this invention is at first holed on old cement concrete pavement, this measure original old cement concrete pavement macroplate can be turned to porose connection in, small plate.So, concrete structure layer stress before being broken of whole old pavement is concentrated on around the hole of being got.Concentrate principle according to stress, only need extraneous less power just the piece plate can be broken or fragmentation at stress concentration point.Relative like this and whole plate just significantly reduced the piece plate broken or broken need the impact grinding energy.In the practice, general requirements is broken or broken piece board size is 45～75 centimetres, when on old pavement, evenly arranging bore position in according to above broken size range, then when impact road roller is broken, reduced by the plate stress of impact grinding, only need the impact road roller of little energy, generally below 20kj, travel and severally break or the purpose of broken road surface plate all over just reaching.
Generally more than 5cm, drilling depth is equal to or greater than the thickness of former cement concrete constructions surface layer to the diameter of holing on old cement concrete pavement.After the boring, infiltrate basic unit in order to prevent rainwater, it is necessary that two grey graded broken stone water that use with conventional roadbed or the filling of cement concrete wet feed in time holed.Hole after the filling generally can not influence stress and concentrate effect, can not influence breaking or the operation of broken road surface plate of subsequent impacts road roller certainly yet.
Utilize method of the present invention to reduce to break or the required time on broken road surface, because needed impact energy is little, the pass of required impact is few, needed impact road roller energy and type are little, so just significantly reduced the influence of impact force, also can not produce excessive noise old pavement both sides building.Consuming time, the power consumption that just can reduce effectively so also that existing impact road roller is broken or bring on broken road surface, weak point such as need isolation measure, disturb residents.
Utilize method of the present invention, when the old cement concrete pavement of 7 kilometers of somewhere, Hebei fragmentations, use 20kj triangle impact road roller to travel and promptly can reach about 6 times the broken piece of road surface plate to the technological requirement between 40cm～60cm.Required time also only 3.5 days, not to tangible vibration influence of surrounding buildings deposits yields and influence of noise, efficiency of construction improves more than five times.
The specific embodiment
The plate size of general cement concrete pavement layer 3～6 meters square between, when this plate break or fragmentation before, at first on this plate, get out the hole of diameter about 10cm with instruments such as Churn drill, hydraulic hammer or Hydraulic picks, the position in hole is uniform substantially, distance between the hole is controlled at about 60cm, can get out 15～20 holes on the plate of 4m * 3m; Can get out 12～16 holes on 3m * 3m plate; The position of border outermost side opening is left about the shrinkage joint 50cm of former cement concrete plate.
The thickness that drilling depth reaches former cement concrete plate gets final product, and the general degree of depth with in the two grey graded broken stone mixture penetration holes of grain warp about 1cm～3cm, with stifled full the getting final product in hole, does not exceed former road surface and exceeds after boring is finished at 20cm～35cm.
Use low-energy impact road roller (generally being that the following impact road roller of triangle 20kj gets final product) punching press 3～8 times.
More than by embodiment the present invention has been described, but the present invention is not limited thereto, those skilled in the art can make different modifications to the present invention with reference on the technical scheme thinking of the present invention, but all modifications all falls among the scope of the present invention.
Claims (4)
1. method of utilizing the broken old concrete supercrust of impact road roller is characterized in that comprising the following steps: to get out with the engineering rig hole of a plurality of different-diameters and different depth on the Portland Cement Concrete Surface Course that is broken; Base course two grey graded broken stones are filled in the hole that is got out; This supercrust is carried out that punching press is broken or broken with impact road roller.
According to the process of claim 1 wherein broken or broken cement concrete pavement layer on bore position evenly distribute, bore diameter is more than 5 centimetres, drilling depth is equal to or greater than former concrete structure surface thickness.
3. according to the process of claim 1 wherein that conventional cement concrete wet feed is substituted two grey graded broken stones to be filled in the hole that is got out, inserts does not exceed former concrete pavement layer.
4. break or broken cement concrete pavement layer uses is three limits, four limits, five limits, hexagon impact road roller according to the process of claim 1 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100779182A CN100436716C (en) | 2004-09-20 | 2004-09-20 | Breaking method for cement concrete pavement layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100779182A CN100436716C (en) | 2004-09-20 | 2004-09-20 | Breaking method for cement concrete pavement layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1598153A CN1598153A (en) | 2005-03-23 |
| CN100436716C true CN100436716C (en) | 2008-11-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100779182A Expired - Fee Related CN100436716C (en) | 2004-09-20 | 2004-09-20 | Breaking method for cement concrete pavement layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100436716C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161119B (en) * | 2011-12-15 | 2016-09-14 | 洛阳路世丰土壤固化科技有限公司 | A kind of new method of rebuilding old road of turning waste into wealth |
| CN110240454A (en) * | 2019-07-30 | 2019-09-17 | 福州大学 | A method of concrete road surface is repaired using protofibre cement based patching material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5462387A (en) * | 1994-10-24 | 1995-10-31 | Roth; Scott R. | Concrete breaking apparatus |
| CN1274030A (en) * | 1999-05-14 | 2000-11-22 | 蓝派冲击压实技术开发(北京)有限公司 | Impacting compact method for reforming concrete road |
| CN1286336A (en) * | 1999-08-26 | 2001-03-07 | 蓝派冲击压实技术开发(北京)有限公司 | Method for maintaining asphalt pavement |
| JP2001081714A (en) * | 1999-09-16 | 2001-03-27 | Kantou Regional Constr Bureau Ministry Of Constr | Method and apparatus for tearing-up asphalt pavement slab |
| CN1446983A (en) * | 2002-03-21 | 2003-10-08 | 蓝派冲击压实技术开发(北京)有限公司 | Method for repairing pavement by using asphalt rubber |
-
2004
- 2004-09-20 CN CNB2004100779182A patent/CN100436716C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5462387A (en) * | 1994-10-24 | 1995-10-31 | Roth; Scott R. | Concrete breaking apparatus |
| CN1274030A (en) * | 1999-05-14 | 2000-11-22 | 蓝派冲击压实技术开发(北京)有限公司 | Impacting compact method for reforming concrete road |
| CN1286336A (en) * | 1999-08-26 | 2001-03-07 | 蓝派冲击压实技术开发(北京)有限公司 | Method for maintaining asphalt pavement |
| JP2001081714A (en) * | 1999-09-16 | 2001-03-27 | Kantou Regional Constr Bureau Ministry Of Constr | Method and apparatus for tearing-up asphalt pavement slab |
| CN1446983A (en) * | 2002-03-21 | 2003-10-08 | 蓝派冲击压实技术开发(北京)有限公司 | Method for repairing pavement by using asphalt rubber |
Non-Patent Citations (2)
| Title |
|---|
| 透孔法爆破拆除混凝土地坪. 王彦荣.工程爆破，第10卷第2期. 2004 |
| 透孔法爆破拆除混凝土地坪. 王彦荣.工程爆破，第10卷第2期. 2004 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1598153A (en) | 2005-03-23 |
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Assignee: Sanming heavy industry construction equipment Co Ltd Assignor: He Jie Contract record no.: 2010990000315 Denomination of invention: Breaking method for cement concrete pavement layer Granted publication date: 20081126 License type: Common License Open date: 20050323 Record date: 20100526 |
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Effective date of registration: 20130603 Address after: 365000 Fujian Sanming City province Meliet District 79 Building No. 21 Xu Bi Er Cun Patentee after: Sanming heavy industry construction equipment Co Ltd Address before: 300132, No. 29, glory road, Hongqiao District, Tianjin (Hebei University of Technology, South 547) Patentee before: He Jie |
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