CN109944129A - Old cement concrete road overlays modified pitch oscillation compaction construction method - Google Patents
Old cement concrete road overlays modified pitch oscillation compaction construction method Download PDFInfo
- Publication number
- CN109944129A CN109944129A CN201910302831.7A CN201910302831A CN109944129A CN 109944129 A CN109944129 A CN 109944129A CN 201910302831 A CN201910302831 A CN 201910302831A CN 109944129 A CN109944129 A CN 109944129A
- Authority
- CN
- China
- Prior art keywords
- cement concrete
- concrete road
- old cement
- modified pitch
- overlays
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Road Paving Machines (AREA)
- Road Repair (AREA)
Abstract
The invention discloses old cement concrete roads to overlay modified pitch oscillation compaction construction method, the following steps are included: S1: establishing testing research region, S2: modified pitch is overlayed, S3: pitch is compacted, S4: confirm that the construction old cement concrete road overlays the suitable parameter of modified pitch, S5: oscillation compaction construction is carried out to whole old cement concrete road, in S1, of same size, the length selection 10m of the width and construction old cement concrete road in testing research region, in S3, the number of rolling of compacting is four times, wherein first pressing is primary, twice, final pressure is primary for multiple pressure.Construction method of the invention is more scientific and reasonable, solve that technical level and management philosophy are backward, wasting of resources phenomenon is serious, construction information expression and transmit fuzzy a series of problems simultaneously, it greatly reduces cost and shortens the construction period, with specific aim and high efficiency, better than conventional construction method, and there is stronger social benefit.
Description
Technical field
The present invention relates to compacting construction field, specially old cement concrete road overlays modified pitch oscillation compaction construction method.
Background technique
The Paving Bituminous Concrete on old cement concrete road is that concrete pavement rebuilding is both economical at one kind of bituminous pavement
Method, road surface is more smooth after repairing, mark, graticule be more clear, safety, comfort and the traffic capacity of driving are all
It greatly improves.At the same time, on cement pavement Laying Asphalt Surface Course have the advantages that it is convenient, fast for construction therefore more and more
Old cement road maintenance in select Laying Asphalt Surface Course reforming mode.During constructing to bituminous pavement, apply
Working medium amount has connection closely with rolling compaction machine and compaction technology.The compacting why carry out road surface, be exactly in order to
The compactness for guaranteeing laying, avoids after highway comes into operation, destroys because rolling deficiency.It is rolled in road pavement
During, rolling technique is reasonably selected, Oscillatory Compaction Technology is exactly a selection well.
But existing pitch oscillation compaction construction method wasting of resources phenomenon is serious, substantially increases cost and extension
Duration does not have specific aim and high efficiency, does not have stronger social benefit.
Summary of the invention
The purpose of the present invention is to provide old cement concrete roads to overlay modified pitch oscillation compaction construction method, above-mentioned to solve
The problem of being proposed in background technique.
To achieve the above object, the invention provides the following technical scheme: old cement concrete road overlays modified pitch oscillation compaction
Construction method, comprising the following steps:
S1: testing research region is established on construction old cement concrete road；
S2: modified pitch is overlayed in testing research region；
S3: being compacted the pitch in S2, selects Oscillatory Compaction Technology, comprising the following steps:
A: first pressing；
B: multiple pressure；
C: final pressure；
Detect during first pressing and roll influence of the temperature to Oscillating Compaction Effect, detected in compacting process: compacting frequency, time
It is several that Oscillating Compaction Effect is influenced；The influence of travel speed, number of rolling to Oscillating Compaction Effect；Amplitude, frequency press oscillation
The influence of actual effect fruit；
S4: according to it is being detected in S3 as a result, confirm the construction old cement concrete road overlay modified pitch suitably roll temperature,
It is compacted frequency, number of rolling, travel speed, amplitude, frequency；
S5: oscillation compaction construction is carried out to whole old cement concrete road according to measured result.
Preferably, in S1, of same size, the length selection of the width and construction old cement concrete road in testing research region
10m。
Preferably, in S3, the number of rolling of compacting is four times, wherein first pressing is primary, and twice, final pressure is primary for multiple pressure.
Preferably, it in S4, is shown about the testing result for rolling temperature during first pressing are as follows: temperature is to consolidation effect
Influence is very big, and in corresponding temperature range, there is certain positive proportionate relationship between the two；It is no more than in temperature
At 140 degrees Celsius, compactness will be with the increase of asphalt temperature and increase, when low temperature, the pitch that is obtained after compacting
Its compactness of mixture is lower, but growth rate is very fast, and the compactness growth rate of hot stage is then relatively small；When pitch is mixed
When closing material and be in lower process temperature, but being not below standard minimum, it is necessary to accelerate oscillatory roller working efficiency, thus
Guarantee that pitch can reach reasonable compactness.
Preferably, material supply point is reasonably selected in compacting process, carries out Insulation, while being arranged in time corresponding
Equipment carries out operation.
Preferably, it in S4, is shown as carrying out in 30Hz or so frequency about compacting frequency, the testing result of number of rolling
Preferable consolidation effect can be obtained by rolling for 4 times, while being controlled rolling layer and can be guaranteed economic indicator.
Preferably, in S4, the testing result about travel speed is shown as best construction parameter and is determined as 3.5-
Under 4.5km/h speed, roll for 4 times.
Preferably, confirm that the construction old cement concrete road overlays the suitable amplitude of modified pitch, frequency is with higher in S4
Frequency, the lesser amplitude of cooperation carry out operation.
Compared with prior art, the beneficial effects of the present invention are: detecting and confirming that old cement concrete road overlays modified pitch vibration
The major parameter of compacting is swung, so that construction method of the invention is more scientific and reasonable, while solving technical level and management reason
Thought falls behind, wasting of resources phenomenon is serious, construction information expression and transmitting obscure a series of problems, greatly reduces cost and contracting
Casual labourer's phase has specific aim and high efficiency, is better than conventional construction method, and have stronger social benefit.
Detailed description of the invention
Fig. 1 is overall flow figure of the invention；
Fig. 2 is frequency of oscillation of the invention, the relational graph of pass and compacted density；
Fig. 3 is travel speed of the invention, pass to the relational graph of compacted density.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of technical solution: old cement concrete road overlays modified pitch oscillation compaction construction method, including with
Lower step:
S1: testing research region, the width in testing research region and old cement of constructing are established on construction old cement concrete road
Of same size, the length selection 10m on road surface；
S2: modified pitch is overlayed in testing research region；
S3: being compacted the pitch in S2, selects Oscillatory Compaction Technology, comprising the following steps:
A: first pressing,；
B: multiple pressure；
C: final pressure；
Detect during first pressing and roll influence of the temperature to Oscillating Compaction Effect, asphalt be a kind of pair of temperature very
Sensitive material, different service performance is shown in different temperature ranges, and in its material composition, pitch becomes temperature
Different influence is most sensitive；
Under high-temperature condition, asphalt has biggish viscosity, and rheological property is preferable, is suitable for the mixing for carrying out material
And transport；Equally, temperature has tremendous influence for rolling operation；Using voidage as index, pitch under different temperatures is carried out
The comparative test of mixture rolling operation, as a result, it has been found that: if on the basis of the porosity index after compacting in the case of 134 DEG C,
Mixture porosity after being compacted at 79 DEG C reaches the benchmark 400%, and when temperature is 93 DEG C, on the basis of relevant index
240%；So, it is sufficient to illustrate temperature control for the importance of roller compaction construction；
Under normal conditions, the mixture of corresponding label pitch configuration has the rolling operation temperature range of itself, and specific
When using different compacting machinaries, there is one again and optimal roll temperature；In reasonable temperature range, temperature is higher
When, the mobility of material is preferable, and the mutual travel motion between material is obvious, is easy to mutually be filled, to be formed closely knit
Structure；Simultaneously as the compaction characteristics of material are preferable, can reduction operation pass appropriate, increase working efficiency；Certainly,
Rolling temperature may not exceed the maximum value of restriction, and otherwise mixture will generate serious passage, be formed in the two sides of operation band
Huge protrusion reduces construction quality；
Asphalt needs are transported from the mixing plant of certain distance to construction site, should necessarily lead to temperature in the process
Loss, and the contact area of material and air is larger in paving process, and temperature, which is scattered and disappeared, to be exceedingly fast, and therefore, operation process often can
There is the risk that low temperature rolls；At this point, the mobility of mixture is very poor, material is difficult to carry out mutual move under the action of exciting force
It moves, is unable to get closely knit structure；Meanwhile the plastic deformation ability of material is strong, is ground according to the equipment of larger exciting force
Pressure, then will lead to surface layer Quick-forming, but inside is unable to get compacting；Further, since temperature is too low after rolling, it is not available
Final pressure carry out stress elimination, impression it is smooth, finally easily generate concave-convex and trace, cannot get good surface evenness；
And since inside configuration stress is not eliminated, make being open to traffic in operational process for later period being easy to appear early damage, reducing road
Use the service life；
It is tested based on the thin-layer bituminous mixture for being similar to pit slot reparation, obtains rolling temperature (first pressing) and pressure
Between solidity, there is following rule:
1. influence of the temperature to consolidation effect is very big, and in corresponding temperature range, exist between the two centainly
Positive proportionate relationship；
2. compactness will be with the increase of asphalt temperature generally speaking, when temperature is no more than 140 degrees Celsius
And increase；Specifically, when low temperature, asphalt its compactness obtained after compacting is lower, but growth rate is very fast；And it is high
The compactness growth rate of thermophase is then relatively small；
3. when asphalt is in lower process temperature, but when being not below standard minimum, it is necessary to accelerate oscillation
Road roller working efficiency, to guarantee that manipulating object (pitch) can reach reasonable compactness；
For this purpose, in subsequent comparative test, it is necessary to it is reasonable to select material supply point, carry out Insulation, while and
When arrange relevant device carry out operation；The temperature characterisitic of mixture is made full use of, operating efficiency is promoted, ensures construction quality；
It is detected in compacting process:
Be compacted frequency, pass on Oscillating Compaction Effect influence, asphalt be pressurized initial stage, density compared with
It is low, temperature is high, mixture have biggish deformability, at this time exciting force frequency variation have significantly to its compacted density size
It influences；But with the progress rolled, mixture is rigidly improved, damped coefficient reduces, and non-deformability increases, at this time frequency
It is influenced little；
Equally, the initial stage is being rolled, since material itself is more loose, rammability energy is preferable, the increase of pass will
It will lead to compactness to steeply rise；But as mixture tends to be closely knit, later period growth rate is substantially reduced, and pass increase at this time is brought
Benefit it is little；
The superiority and inferiority of consolidation effect can be probed into all its bearings, the flat conditions of the compactness, road surface that such as roll, with
And pavement structure etc.；Here, selection wherein influences for the ease of the relationship probed between frequency, operation pass and consolidation effect
Maximum index compacted density is analyzed；The variation of amplitude acts on the size for rolling power on object for directly reflecting, it
It is also the important indicator for influencing consolidation effect；But the road roller used in the industry at present is mostly the pressure of two grades or multi gear amplitude
Road machine can not inquire into influence of its consecutive variations to consolidation effect with actual compaction test；Therefore in corresponding parameter selection,
It is usually carried out according to corresponding specification, lesser amplitude is then used for Lamina；And works as and encounter soil, stone or earth-rock mixture
When blanket layer operation, then exciting and strong vibration coordinative construction should be used；
For this purpose, select 0.52mm amplitude using certain external type oscillatory roller as object, respectively 6 kinds of frequencies (25Hz,
28Hz, 31Hz, 34Hz, 37Hz, 40Hz), compaction test (thin-layer bituminous mixing is carried out under 6 kinds of compacting countings (1,2,3 ..., 6)
Material)；The firsthand information of record, while being encrypted intermediate data using the method for interpolation, later such as using MATLAB analysis
Shown in Fig. 2；
Known to analysis: within the scope of said frequencies, there are two peak values in compactness, respectively in 30Hz, 38Hz or so；Preceding four
The growth of secondary density when rolling is very fast, efficiency of compaction is high；And after construction operation number is more than 4, the asphalt that detects
Variable density is little, curve is gentle, this is mutually confirmed with theory analysis above-mentioned；For synthesis, 4 are carried out in 30Hz or so frequency
Secondary roll can obtain preferable consolidation effect, while controlling rolling layer and can guarantee economic indicator；
Therefore, in practical roller compaction process, it is necessary to comprehensively consider rolling layer, consolidation effect and economic benefit three it
Between relationship；When compactness reaches standard requirements, the later period need not continue rolling repeatedly, reason be in this way brought by it is close
Solidity increase is little, and causes excessive unnecessary cost input；
The influence of travel speed, number of rolling to Oscillating Compaction Effect；
When carrying out rolling operation, the speed of road roller can be all limited in certain section according to different situations,
Illustrate that the variation of speed parameter has corresponding influence for compacting operation；It rolls initial stage, the rigidity of asphalt is lower, material
The deformability of material is big, and steel wheel and its effect are not to be transmitted in a manner of line pressure, and can be in the transverse direction of steel wheel
Based on heart line, has certain prolong life forwards, backwards；It constructs the later period, the rigidity of material increases, deforms smaller, contact of the steel wheel with it
Area can be reduced therewith, only when being smooth rigid body by pressure object, can just be contacted in the form of a line between the two；If with
Some point or line pressing times (t) consider in compaction band, then rolling layer (m), travel speed (v) and its relationship substantially can be with
It indicates are as follows: t ∝ m/v action time is longer, then it is larger to represent the cumulative excitation being subject to herein, theoretically wishes that this numerical value can
In biggish range；It is but practical really not so, if it is desired to the increasing action time, it is necessary to take and increase rolling layer, reduce row
It sails speed, or both while being controlled, and corresponding problem will necessarily be brought in this way；First, asphalt can reach
The compaction rate arrived is not the increase with cumulative excitation and is infinitely increased；Initial stage material can adequately absorb sharp
It encourages, to be converted into the energy mutually moved between itself particle, achievees the effect that mutually to fill；But with the closely knit increasing of material
Add, the rigidity of material increases, and mixture forms a metastable structure, stronger to the resistivity of external influence；Only
Partial compaction force can be absorbed and used, other, scatter and disappear in some way；Second, when above-mentioned control will cause compacting process
Between increase, so as to cause excessive temperature reduction, it is made to be not content with the reasonable temperature range of each compacting process, it is final not repay
It loses；Third, this control the reduction for necessarily leading to operating efficiency, cause the increase of cost, economic benefit is bad, does not meet society
The development idea advocated；To choose the travel speed for being most appropriate to test, equally it is with certain aforementioned external type oscillatory roller
Research object, by amplitude controlling in 0.52mm, respectively 6 kinds of speed (3km/h, 3.5km/h, 4km/h, 4.5km/h, 5km/h,
5.5km/h), it is compacted (thin-layer bituminous mixture) under 6 kinds of compacting countings (1,2,3 ..., 6), obtains compacted density data warp
MATLAB processing result is as shown in Figure 3；
When travel speed is within the scope of 3.5-4.5km/h, with the increase of rolling layer, the compactness of mixture constantly becomes
Greatly；And after rolling layer is more than 4 times, no matter the speedup of compacted density is smaller under which speed, curved surface becomes flat
It is slow；Thus, it is possible to which best construction parameter is determined as under 3.5-4.5km/h speed, roll for 4 times；
The influence of amplitude, frequency to Oscillating Compaction Effect；
It is analyzed by compacting mechanism above-mentioned it is found that the core of oscillatory roller is exciting agency, in corresponding power
Driving under, periodic motion is carried out with certain rule, so that steel wheel be forced to generate vibration/oscillation effect, material is carried out
It rolls；
Wherein, the running speed of the mechanism can be converted to Frequency Index, and frequency is bigger, then it represents that material in the unit time
The effect number being subject to is the more；And amplitude largely will directly reflect steel wheel it is rolled material active force it is strong
Weak, numerical value is bigger, represents that the power that steel wheel applies material is bigger, rolls the depth of influence, range also increased therewith；
Under normal conditions, the influence of said frequencies, amplitude index to consolidation effect is not independent, but is had very strong
Relevance；For that purpose it is necessary to which they are accounted for simultaneously, its influence to consolidation effect is analyzed；
When carrying out Lamina material (pitch) and rolling, usually require that with higher frequency, the lesser amplitude of cooperation into
Row operation；Trace it to its cause: higher frequency values can increase the effect number in the unit time to material, improve operation when
Effect property, so that temperature is in reasonable interval in roller compaction process, ensures and smoothly overlaps between each flow chart；Meanwhile in order to protect
Shield is prevented the excessive generation of its stress damaged, is then carried out operation using lesser amplitude by pressure material；
Rolling the initial stage of thicker laying (such as soil, stone) material, it is contemplated that material is more loose, compressibility is good, and
And the gap of storeroom is larger, can effectively buffer corresponding excitation load, it will usually use lower frequency, cooperation large amplitude
It constructs, so as to improve working efficiency, save the cost under the premise of ensureing construction quality；And the later period is rolled, material
It is relatively closely knit, then operation can be carried out using relatively high frequency, lesser amplitude；
In summary, influence of above-mentioned two parameter to consolidation effect is not independent, it is necessary to be accounted for simultaneously；This
Outside, the numerical value of corresponding index is not the bigger the better, it should be configured for specific handling situations；
The number of rolling of compacting is four times, wherein first pressing is primary, and twice, final pressure is primary for multiple pressure；
S4: according to it is being detected in S3 as a result, confirm the construction old cement concrete road overlay modified pitch suitably roll temperature,
It is compacted frequency, number of rolling, travel speed, amplitude, frequency, wherein aobvious about the testing result for rolling temperature during first pressing
Be shown as: influence of the temperature to consolidation effect is very big, and in corresponding temperature range, there is certain positive ratio between the two
Example relationship；When temperature is no more than 140 degrees Celsius, compactness will be with the increase of asphalt temperature and increase, low temperature
When, asphalt its compactness obtained after compacting is lower, but growth rate is very fast, and the compactness growth rate of hot stage
It is then relatively small；When asphalt is in lower process temperature, but is not below standard minimum, it is necessary to accelerate oscillation
Road roller working efficiency, to guarantee that pitch can reach reasonable compactness；About compacting frequency, the testing result of number of rolling
It is shown as confirming rolling at the progress of 30Hz or so frequency 4 times and can obtain preferable consolidation effect, while controlling rolling layer can
Guarantee economic indicator；Testing result about travel speed is shown as best construction parameter and is determined as under 3.5-4.5km/h speed,
Roll for 4 times；Confirm that the construction old cement concrete road overlays the suitable amplitude of modified pitch, frequency is with higher frequency, matches
It closes lesser amplitude and carries out operation；
S5: oscillation compaction construction is carried out to whole old cement concrete road according to measured result.
The present invention is by detecting and confirming that old cement concrete road overlays the major parameter of modified pitch oscillation compaction, so that this hair
Bright construction method is more scientific and reasonable, while solving that technical level and management philosophy are backward, wasting of resources phenomenon is serious, apply
Work information representation and the fuzzy a series of problems of transmitting, greatly reduce cost and shorten the construction period, have specific aim and high efficiency,
Better than conventional construction method, and there is stronger social benefit.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. old cement concrete road overlays modified pitch oscillation compaction construction method, which comprises the following steps:
S1: testing research region is established on construction old cement concrete road；
S2: modified pitch is overlayed in testing research region；
S3: being compacted the pitch in S2, selects Oscillatory Compaction Technology, comprising the following steps:
A: first pressing；
B: multiple pressure；
C: final pressure；
It is detected during first pressing and rolls influence of the temperature to Oscillating Compaction Effect, detected in compacting process: compacting frequency, pass pair
Oscillating Compaction Effect influences；The influence of travel speed, number of rolling to Oscillating Compaction Effect；Amplitude, frequency imitate oscillation compaction
The influence of fruit；
S4: according to being detected in S3 as a result, confirming that the construction old cement concrete road overlays modified pitch and suitably rolls temperature, compacting
Frequency, number of rolling, travel speed, amplitude, frequency；
S5: oscillation compaction construction is carried out to whole old cement concrete road according to measured result.
2. old cement concrete road according to claim 1 overlays modified pitch oscillation compaction construction method, it is characterised in that:
In S1, of same size, the length selection 10m of the width and construction old cement concrete road in testing research region.
3. old cement concrete road according to claim 1 overlays modified pitch oscillation compaction construction method, it is characterised in that:
In S3, the number of rolling of compacting is four times, wherein first pressing is primary, and twice, final pressure is primary for multiple pressure.
4. old cement concrete road according to claim 1 overlays modified pitch oscillation compaction construction method, it is characterised in that:
In S4, shown about the testing result for rolling temperature during first pressing are as follows: influence of the temperature to consolidation effect is very big, and in phase
In the temperature range answered, there is certain positive proportionate relationship between the two；When temperature is no more than 140 degrees Celsius, compactness
It will be with the increase of asphalt temperature and increase, when low temperature, asphalt its compactness obtained after compacting is lower,
But growth rate is very fast, and the compactness growth rate of hot stage is then relatively small；When asphalt is in lower process
Temperature, but when being not below standard minimum, it is necessary to accelerate oscillatory roller working efficiency, to guarantee that pitch can reach reasonable
Compactness.
5. old cement concrete road according to claim 4 overlays modified pitch oscillation compaction construction method, it is characterised in that: pressure
It is reasonable during real to select material supply point, carry out Insulation, while arranging relevant device to carry out operation in time.
6. old cement concrete road according to claim 1 overlays modified pitch oscillation compaction construction method, it is characterised in that:
In S4, about compacting frequency, the testing result of number of rolling be shown as 30Hz or so frequency roll for 4 times can obtain compared with
Good consolidation effect, while controlling rolling layer and can guarantee economic indicator.
7. old cement concrete road according to claim 1 overlays modified pitch oscillation compaction construction method, it is characterised in that:
In S4, the testing result about travel speed is shown as best construction parameter and is determined as under 3.5-4.5km/h speed, carries out 4 times
It rolls.
8. old cement concrete road according to claim 1 overlays modified pitch oscillation compaction construction method, it is characterised in that:
Confirm that the construction old cement concrete road overlays the suitable amplitude of modified pitch, frequency is lesser with higher frequency, cooperation in S4
Amplitude carries out operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302831.7A CN109944129A (en) | 2019-04-16 | 2019-04-16 | Old cement concrete road overlays modified pitch oscillation compaction construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910302831.7A CN109944129A (en) | 2019-04-16 | 2019-04-16 | Old cement concrete road overlays modified pitch oscillation compaction construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109944129A true CN109944129A (en) | 2019-06-28 |
Family
ID=67015357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910302831.7A Pending CN109944129A (en) | 2019-04-16 | 2019-04-16 | Old cement concrete road overlays modified pitch oscillation compaction construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109944129A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685203A (en) * | 2019-09-19 | 2020-01-14 | 杭州南岳建设工程有限公司 | Method for ensuring compactness of periphery of gully of inspection well |
| CN113417195A (en) * | 2021-06-18 | 2021-09-21 | 广东长正建设有限公司 | Road roller pressing implementation method based on real-time asphalt pavement monitoring technology |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561154A (en) * | 2012-03-13 | 2012-07-11 | 三一集团有限公司 | Auxiliary device for compacting operation, auxiliary method for compacting operation and road roller |
| CN104099844A (en) * | 2014-08-13 | 2014-10-15 | 山东金茂建设集团有限公司 | Construction technology for environment-friendly and modified HMA surface layer |
| CN107142810A (en) * | 2017-05-23 | 2017-09-08 | 济南汇通联合市政工程有限责任公司 | A kind of high-viscosity bitumen modifier asphalt paving construction method |
| CN107386037A (en) * | 2017-07-20 | 2017-11-24 | 天津市国腾公路咨询监理有限公司 | A kind of compaction technology based on asphalt compactingproperties |
| CN208334409U (en) * | 2018-06-13 | 2019-01-04 | 中国铁道科学研究院集团有限公司 | Subgrade compaction feedback control system |
| CN109356003A (en) * | 2018-09-18 | 2019-02-19 | 北京龙马智行科技有限公司 | A kind of subgrade and pavement intelligence rcc system |
-
2019
- 2019-04-16 CN CN201910302831.7A patent/CN109944129A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561154A (en) * | 2012-03-13 | 2012-07-11 | 三一集团有限公司 | Auxiliary device for compacting operation, auxiliary method for compacting operation and road roller |
| CN104099844A (en) * | 2014-08-13 | 2014-10-15 | 山东金茂建设集团有限公司 | Construction technology for environment-friendly and modified HMA surface layer |
| CN107142810A (en) * | 2017-05-23 | 2017-09-08 | 济南汇通联合市政工程有限责任公司 | A kind of high-viscosity bitumen modifier asphalt paving construction method |
| CN107386037A (en) * | 2017-07-20 | 2017-11-24 | 天津市国腾公路咨询监理有限公司 | A kind of compaction technology based on asphalt compactingproperties |
| CN208334409U (en) * | 2018-06-13 | 2019-01-04 | 中国铁道科学研究院集团有限公司 | Subgrade compaction feedback control system |
| CN109356003A (en) * | 2018-09-18 | 2019-02-19 | 北京龙马智行科技有限公司 | A kind of subgrade and pavement intelligence rcc system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685203A (en) * | 2019-09-19 | 2020-01-14 | 杭州南岳建设工程有限公司 | Method for ensuring compactness of periphery of gully of inspection well |
| CN113417195A (en) * | 2021-06-18 | 2021-09-21 | 广东长正建设有限公司 | Road roller pressing implementation method based on real-time asphalt pavement monitoring technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109944129A (en) | Old cement concrete road overlays modified pitch oscillation compaction construction method | |
| CN106192660B (en) | The construction method of Highway Pavement Structures | |
| US20210108389A1 (en) | Method of strengthening and widening subgrade with geocell based on conductive polymer | |
| CN107386037A (en) | A kind of compaction technology based on asphalt compactingproperties | |
| CN106503831A (en) | A kind of evaluation method of Construction of Asphalt Pavement energy consumption | |
| Xu et al. | Field study of compaction quality control parameters and compaction mechanism of large particle size stone-filled embankment | |
| CN104652180B (en) | A kind of roadbed filling construction method | |
| CN109972468A (en) | A kind of construction method for reinforcing hydraulic fill sand embankment | |
| CN108570909A (en) | A kind of Extra-fine sand roadbed fills debulking methods | |
| CN104790438B (en) | Vibration reduction and isolation plate pile structure and construction method thereof | |
| CN100436713C (en) | Water-utilization vibration construction method and device | |
| CN103487562A (en) | Method used for designing compaction humidity of southern high liquid limit soil roadbed | |
| CN108343050A (en) | A kind of dynamic compaction machinery construction monitoring system and monitoring method | |
| CN105369721A (en) | Cement-stabilized coral reef sand construction process | |
| Zhang et al. | The influence of uneven frost heave and thermal conditions on the deformation and damage of slab track in seasonally frozen regions | |
| CN102539205B (en) | Asphalt mixture spin forming device with tractive force | |
| Xiao et al. | Discrete element analysis of the effect of manual tamping operation on the mechanical properties of ballast bed | |
| CN109918721B (en) | A kind of method of pile formula roadbed stress ratio under the conditions of acquisition Particle Breakage | |
| CN208328584U (en) | A kind of extremely frigid zones highway subgrade structure | |
| CN208072369U (en) | A kind of dynamic compaction machinery construction monitoring system | |
| Tao et al. | Design and engineering application of polymer grouting pore layout scheme for expressway pavement diseases | |
| Adam et al. | Ground improvement techniques beneath existing rail tracks | |
| Lu et al. | Experimental study on site filling of sandy soil for railway subgrade | |
| CN204690803U (en) | One subtracts vibration isolation sheet pile structure | |
| Lu et al. | Study on influencing Factors and Control measures of Asphalt Pavement Performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190628 |