CN101581065A - Method for constructing road foundation by using bituminous concrete paver - Google Patents
Method for constructing road foundation by using bituminous concrete paver Download PDFInfo
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- CN101581065A CN101581065A CNA2009100013778A CN200910001377A CN101581065A CN 101581065 A CN101581065 A CN 101581065A CN A2009100013778 A CNA2009100013778 A CN A2009100013778A CN 200910001377 A CN200910001377 A CN 200910001377A CN 101581065 A CN101581065 A CN 101581065A
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- paver
- paving
- thickness
- screed
- paves
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Abstract
The invention relates to a method for constructing ground foundation by a bituminous concrete paver. In the prior art, as the mechanization level of construction is not high, the phenomenon of poor control of the mixing rate of a mixed material, unstable dosage of a stabilizer, uneven and impervious stirring and watering and no guarantee of elevation and leveling degree are generated. The method comprises that the following steps: firstly, selecting an initial elevation value of the paver; determining Matsukata coefficient K of a paving layer; measuring the camber of a structural layer completed by the pavement through a water level; determining the hammer pressure and the vibrating beam pressure of the paver; intensively stirring a foundation material by a stirrer; adjusting the positions of a spiral conveyor and an anterior baffle plate; adjusting the distance between the spiral conveyor and the ground to the paving thickness of 1.25; and paving the ground by the bituminous concrete paver at a speed of 2 meters per minute and then grinding the ground by a vibrating type road roller. The method is used for constructing an asphalt concrete road foundation.
Description
Technical field:
What the present invention relates to is road surface base layer construction method thereof, and what be specifically related to is the method for carrying out constructing road foundation with bituminous concrete paver.
Background technology:
Basic unit is the important ingredient in road surface, and it mainly plays the load-bearing effect, bears the vehicular load vertical force that surface layer transmits, and it is diffused in bed course and the roadbed.Therefore, require basic unit that enough strength and stiffness are arranged, enough water stabilities and freezing stability are arranged.Basic unit has stabilized with inorganic binder class and pellet to stablize two kinds, stabilized with inorganic binder class rigidity is big, good stability, and economical, but damage phenomenon in various degree in use also appears in this road surface, and a major reason is that the construction quality of sub-surface can't be guaranteed.
The beginning of the eighties in last century, constructing road foundation adopts artificial mix, manually paves, to artificial stone (according to dosage putting sacked cement or lime), automobile watering, five-furrow plough turns and grey soil mixing plant mixes and stirs, artificial levelling; Adopt the loader spice beginning of the nineties, manually cooperate bulldozer to pave; Adopted the still artificial or semi-mechanization operations of genus such as small-sized or medium-sized pellet blending station mixes and stirs, bulldozer paves, blade machine levelling afterwards.Because construction mechanization level is not high, it is bad then to produce Mixture Ratio control, the dosage shakiness of stabilizing agent, and it is irregular, not saturating to mix and stir, sprinkle water, the phenomenon that absolute altitude and planeness can't guarantee.Along with the highway construction grade improves, scale strengthens day by day, and the construction period shortens greatly, presses for to improve base layer construction technology, and the automation of itself and surface construction is complementary.
Summary of the invention:
The purpose of this invention is to provide and a kind ofly carry out the method for constructing road foundation, be used to solve the problem that existing base layer construction process machinery level is not high, construction quality is low with bituminous concrete paver.
The technical solution adopted for the present invention to solve the technical problems is:
Carry out the method for constructing road foundation with bituminous concrete paver, at first select the initial elevation value of paver, determine the loose measure coefficient k of paving layer, the deck camber that paves and finish with the level gauge measurement, determine the hammer ram pressure of paver and the beam pressure that vibrates, adopt lorry mounted mixer that base material is carried out central mix, adjust the position of helical conveyor and preceding side shield, adjusting helical conveyor is that paving thickness becomes 1.25 with the distance on ground, speed with 2 meters of per minutes paves with bituminous concrete paver, and then rolls with vibrating roller.
Described method of carrying out constructing road foundation with bituminous concrete paver:
(1), selects the initial elevation value of described paver
Determine to pave before the elevation angle, need the initial installation of screed is surveyed, promptly paver screed is placed on the ground, the elevation angle, both sides scale indication 0 or 5, the screed of measuring and adjust paver this moment should be horizontal level, and in the case, initial elevation value e=k paves
4(1+k
3) b, wherein k
4Be empirical parameter, k
3Be the loose measure coefficient, b is a paving thickness; Paver is paved and travels behind the segment distance by bilateral extension reference line method, measure the thickness that paves, compare, promptly can determine the calculating parameter between elevation value and the paving thickness with elevation value and the institute's Thickness Measurement by Microwave of this moment, thus the adjustment elevation angle;
(2), determine the loose measure coefficient k of described paving layer
The loose measure coefficient is chosen in about 1.18-1.25, when the basic unit behind the roller-compaction reaches the compactness of regulation, adopts level gauge to measure actual paving thickness, with actual paving thickness and compare without the paving thickness that rolls, can draw the loose measure coefficient that paves;
(3), determine the parameter of vibrating of described paver
The parameter of vibrating of paver should show and to adjust by the vibrate pressure meter of hydraulic system of paver, and for the planeness that guarantees that basic unit paves, the paver hydraulic system pressure adjustment of vibrating is bigger, makes the annex of paver can not produce high vibration and is advisable; Hammer ram pressure 60bar, beam pressure 80bar vibrates;
Plate thickness when (4), paving joint
Plate thickness m=k * b, wherein k is that loose measure coefficient, b are paving thickness;
(5), the adjustment of width
By the base width requirement, screed will be guaranteed straight, and the sound stage width degree does not conform to if original screed is gone the same way, and takes auxiliary screed, perhaps takes the super wide part screed is added the way of baffle plate.
Beneficial effect:
1, the present invention has improved construction quality, the sub-surface that paves with paver is aspect the appearance and size, adopt artificial auxiliary land leveller to pave as technical indicators such as absolute altitude, width, planeness and be greatly improved, can all satisfy the requirement of relevant specification, qualification rate reaches absolutely.It is true that the present invention has reached the machine registration, uniform mixing, consistency of thickness, quick construction, smooth, the mechanization degree height, speed of application be in the past few years in 5 times of base layer construction speed, greatly reduce artificial factor, compound evenly, roll in time, surging, intensity all fully obtained the guarantor; Because mixture laying is even, reduced thickness pellet segregation phenomenon widely, guaranteed the uniformity of foundation base intension, match ratio, to shrink and temperature deformation reduces, reduce in one crack, road surface, has reduced the early damage on road surface, prolonged the application life on road surface.
2, improved operating efficiency, paver paving concrete pavement basic unit has embodied the superiority of mechanized fully, has improved operating efficiency, has reduced working strength of workers.
The specific embodiment:
Embodiment 1:
Present embodiment adopts the bituminous concrete paver of DEMAG model to pave, at first select the initial elevation value of paver, determine the loose measure coefficient k of paving layer, the deck camber that paves and finish with the level gauge measurement, determine the hammer ram pressure of paver and the beam pressure that vibrates, adopt 500 type lorry mounted mixers that base material is carried out central mix, adjust the position of helical conveyor and preceding side shield, adjusting helical conveyor is that paving thickness becomes 1.25 with the distance on ground, speed with 2 meters of per minutes paves with bituminous concrete paver, and then rolls with vibrating roller.
In the present embodiment,, also used following method to determine the relevant technologies parameter of bituminous concrete paver in order to ensure the quality of the basic unit that paves:
(1), selects the initial elevation value of described paver
Determine to pave before the elevation angle, need the initial installation of screed is surveyed, promptly paver screed is placed on the ground, the elevation angle, both sides scale indication 0 or 5, the screed of measuring and adjust paver this moment should be horizontal level, and in the case, initial elevation value e=k paves
4(1+k
3) b, wherein k
4Be empirical parameter, k
3Be the loose measure coefficient, b is a paving thickness; Paver is paved and travels behind the segment distance by bilateral extension reference line method, measure the thickness that paves, compare, promptly can determine the calculating parameter between elevation value and the paving thickness with elevation value and the institute's Thickness Measurement by Microwave of this moment, thus the adjustment elevation angle.
(2), determine the loose measure coefficient k of described paving layer
The loose measure coefficient is chosen in 1.2, when the basic unit behind the roller-compaction reaches the compactness of regulation, adopts level gauge to measure actual paving thickness, with actual paving thickness and compare without the paving thickness that rolls, can draw the loose measure coefficient that paves.
(3), determine the parameter of vibrating of described paver
The parameter of vibrating of paver should show and to adjust by the vibrate pressure meter of hydraulic system of paver, and for the planeness that guarantees that basic unit paves, the paver hydraulic system pressure adjustment of vibrating is bigger, makes the annex of paver can not produce high vibration and is advisable; Hammer ram pressure 60bar, beam pressure 80bar vibrates.
Plate thickness when (4), paving joint
Plate thickness m=k * b, wherein k is that loose measure coefficient, b are paving thickness.
(5), the adjustment of width
By the base width requirement, screed will be guaranteed straight, and original screed sound stage width degree of going the same way does not conform in the present embodiment, differs 25cm, takes the way of auxiliary screed.
Table one and table two provide the contrast situation of base layer construction quality of the present invention and construction speed and original road surface base layer construction method thereof respectively, and be as follows:
The quality contrast table of the new and old basic unit of table one
The new and old job practices progress of table two contrast table
Shown in above two tables, the present invention adopts the bituminous concrete paver basic unit that paves, and it is true to have reached the machine registration, uniform mixing, and consistency of thickness, quick construction, smooth, the mechanization degree height has reduced the interference of human factor; Daily output is broken through 1,000,000 high pointes, be in the past few years in 5 times of base layer construction speed, benefit is extremely considerable.
Claims (2)
1, a kind of method of carrying out constructing road foundation with bituminous concrete paver, it is characterized in that: at first select the initial elevation value of paver, determine the loose measure coefficient k of paving layer, the deck camber that paves and finish with the level gauge measurement, determine the hammer ram pressure of paver and the beam pressure that vibrates, adopt lorry mounted mixer that base material is carried out central mix, adjust the position of helical conveyor and preceding side shield, adjusting helical conveyor is that paving thickness becomes 1.25 with the distance on ground, speed with 2 meters of per minutes paves with bituminous concrete paver, and then rolls with vibrating roller.
2, according to claim 1ly carry out the method for constructing road foundation, it is characterized in that with bituminous concrete paver:
(1), selects the initial elevation value of described paver
Determine to pave before the elevation angle, need the initial installation of screed is surveyed, promptly paver screed is placed on the ground, the elevation angle, both sides scale indication 0 or 5, the screed of measuring and adjust paver this moment should be horizontal level, and in the case, initial elevation value e=k paves
4(1+k
3) b, wherein k
4Be empirical parameter, k
3Be the loose measure coefficient, b is a paving thickness; Paver is paved and travels behind the segment distance by bilateral extension reference line method, measure the thickness that paves, compare, promptly can determine the calculating parameter between elevation value and the paving thickness with elevation value and the institute's Thickness Measurement by Microwave of this moment, thus the adjustment elevation angle;
(2), determine the loose measure coefficient k of described paving layer
The loose measure coefficient is chosen in 1.18-1.25, about when the basic unit behind the roller-compaction reaches the compactness of regulation, adopt level gauge to measure actual paving thickness, with actual paving thickness and compare, can draw the loose measure coefficient that paves without the paving thickness that rolls;
(3), determine the parameter of vibrating of described paver
The parameter of vibrating of paver should show and to adjust by the vibrate pressure meter of hydraulic system of paver, and for the planeness that guarantees that basic unit paves, the paver hydraulic system pressure adjustment of vibrating is bigger, makes the annex of paver can not produce high vibration and is advisable; Hammer ram pressure 60bar, beam pressure 80bar vibrates;
Plate thickness when (4), paving joint
Plate thickness m=k * b, wherein k is that loose measure coefficient, b are paving thickness;
(5), the adjustment of width
By the base width requirement, screed will be guaranteed straight, and the sound stage width degree does not conform to if original screed is gone the same way, and takes auxiliary screed, perhaps takes the super wide part screed is added the way of baffle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100013778A CN101581065B (en) | 2008-05-13 | 2009-01-05 | Method for constructing road foundation by using bituminous concrete paver |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810064486.X | 2008-05-13 | ||
| CN200810064486 | 2008-05-13 | ||
| CN2009100013778A CN101581065B (en) | 2008-05-13 | 2009-01-05 | Method for constructing road foundation by using bituminous concrete paver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101581065A true CN101581065A (en) | 2009-11-18 |
| CN101581065B CN101581065B (en) | 2011-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100013778A Active CN101581065B (en) | 2008-05-13 | 2009-01-05 | Method for constructing road foundation by using bituminous concrete paver |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852080A (en) * | 2012-10-12 | 2013-01-02 | 中联重科股份有限公司 | Paver as well as method, device and system for controlling paver operation |
| CN111172849A (en) * | 2020-01-19 | 2020-05-19 | 陕西中大力鼎科技有限公司 | Full-width seamless integral forming asphalt paving method for old road extension |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2530977Y (en) * | 2002-02-28 | 2003-01-15 | 孟昭彬 | Full hydraulic wheel type asphalt concrete paver |
| CN100564679C (en) * | 2004-10-11 | 2009-12-02 | 上海诚建道路机械施工有限公司 | Technique for constructing asphalt concrete pavement of racetrack |
| CN100537898C (en) * | 2007-10-16 | 2009-09-09 | 哈尔滨工业大学 | The job practices of rubber grain asphalt concrete pavement |
-
2009
- 2009-01-05 CN CN2009100013778A patent/CN101581065B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852080A (en) * | 2012-10-12 | 2013-01-02 | 中联重科股份有限公司 | Paver as well as method, device and system for controlling paver operation |
| CN102852080B (en) * | 2012-10-12 | 2015-06-03 | 中联重科股份有限公司 | Paver as well as method, device and system for controlling paver operation |
| CN111172849A (en) * | 2020-01-19 | 2020-05-19 | 陕西中大力鼎科技有限公司 | Full-width seamless integral forming asphalt paving method for old road extension |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101581065B (en) | 2011-02-16 |
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Inventor after: Shi Tieqiao Inventor after: Ma Yong Inventor after: Jiang Yueping Inventor after: Sun Xuefei Inventor before: Yang Zaiyu |
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Free format text: CORRECT: INVENTOR; FROM: YANG ZAIYU TO: SHI TIEQIAO MA YONG JIANG YUEPING SUN XUEFEI |
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