CN105780632B - A kind of method of testing of drainage pavement loosening degree - Google Patents
A kind of method of testing of drainage pavement loosening degree Download PDFInfo
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- CN105780632B CN105780632B CN201610112425.0A CN201610112425A CN105780632B CN 105780632 B CN105780632 B CN 105780632B CN 201610112425 A CN201610112425 A CN 201610112425A CN 105780632 B CN105780632 B CN 105780632B
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- drainage pavement
- fine aggregate
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- loose
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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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/01—Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed or reference line supports; Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs
Abstract
The invention discloses a kind of method of testing of drainage pavement loosening degree, belong to road engineering technical field of measurement and test.Method of testing of the present invention is specially：Choose the normal region on non-wheel path at the loose region and one at one on wheel path respectively on the same cross section in the same track of tested drainage pavement；Take two parts of volume identical fine aggregates to be laid in region at selected two respectively, and measure the tiling area in fine aggregate region at two；Using the ratio of fine aggregate tiling area of difference and normal region of the fine aggregate on non-wheel path of the tiling area in region at two as test drainage pavement loosening degree evaluation index, ratio is bigger, shows the loosely more serious of drainage pavement.Compared with prior art, the present invention can comprehensively, accurately, objectively evaluate the loose disease order of severity of drainage pavement, and method is simple and easy to apply, is easy to on-site construction operations.
Description
Technical field
The present invention relates to road engineering technical field of measurement and test, more particularly to a kind of test side of drainage pavement loosening degree
Method.
Background technology
Although drainage pavement has the advantages that voidage is big, drainage performance is good, because the level of use is with more single, lead
Cause that the bond area between coarse aggregate is small, thus cohesive force is small, pitch and sticking between gathering materials under the comprehensive function of load and water
Power diminishes, and easily triggers loose disease.
Slight loose disease is showed only as the damaged surfaces, more serious pine such as the lost of road surface fine aggregate, decortication, pitted skin
Dissipate scattered and disappeared along with disease coarse aggregate, decortication, pitted skin, undisguised, surface are peeled off or even pit-hole.Loose disease can reduce evenness of road surface
Degree, influences the comfortableness of driving.It if punished not in time, can also gradually develop, trigger a series of other diseases, final road pavement
The strength and stability of structure threatens, therefore, and the loose disease progress test evaluation to drainage pavement is very necessary.Mesh
Before,《Highway technology status assessment standard》The loose disease of bituminous paving is characterized in (JTG H20-2007) using area,
But for drainage pavement, itself fine aggregate is just seldom, space is big, and the slight loose stage should not be discovered, even if occurring
More serious loose disease also not necessarily can be in flakes；In addition, area is the plane index of two dimension, it can not comprehensively reflect three-dimensional
The order of severity of loose disease.Therefore, the order of severity that prior art evaluates the loose disease of drainage pavement using area is obviously deposited
In deficiency.
The content of the invention
The technical problems to be solved by the invention are to overcome prior art, and not enough there is provided a kind of drainage pavement loosening degree
Method of testing, can comprehensively, the loose disease order of severity that is accurate, objectively evaluating drainage pavement, and method is simple and easy to apply,
It is easy to on-site construction operations.
It is of the invention specific using following technical scheme solution above-mentioned technical problem：
A kind of method of testing of drainage pavement loosening degree, on the same cross section in the same track of tested drainage pavement
The normal region on non-wheel path at the loose region and one at one on wheel path is chosen respectively；Two parts of volume identicals are taken carefully to collect
Material is laid in region at selected two respectively, and measures the tiling area in fine aggregate region at two；With fine aggregate two
Locate the ratio of tiling area of normal region of the difference with fine aggregate on non-wheel path of the tiling area in region as being tested
The evaluation index of drainage pavement loosening degree, ratio is bigger, shows the loose more serious of drainage pavement.
Preferably, the particle diameter of the fine aggregate is 0.3~0.6mm.
Preferably, it is fixed width by fine aggregate tiling when fine aggregate to be laid in region at selected two respectively
Rectangle.So only need to measure the length of tiled area, you can calculate the evaluation index of drainage pavement loosening degree.
Compared with prior art, the invention has the advantages that：
The present invention using tile fine aggregate by the way of come test evaluation drainage pavement loosening degree, compared with existing method of testing
More accurately and reliably, it is not necessary to artificially observe loose position, result of the test more objective reality；
The present invention chooses loose region and normal area respectively on the same cross section in the same track of tested drainage pavement
Domain, and utilize the difference and the flat spreading part of normal region of the fine aggregate on non-wheel path of fine aggregate tiling area in region at two
Long-pending ratio effectively eliminates the different institutes of drainage pavement self structure as the evaluation index of tested drainage pavement loosening degree
The testing differentia brought, test result is more accurate, and the loose disease being more beneficial between different drainage pavements compares；
Method of testing of the present invention is simple and easy to apply, it is not necessary to special equipment, is conducive to execute-in-place.
Brief description of the drawings
Fig. 1 is the schematic diagram of fine aggregate tiling process；
Fig. 2 is the schematic diagram after the completion of fine aggregate is tiled.
Embodiment
Technical scheme is described in detail below in conjunction with the accompanying drawings：
In order to overcome the problem of existing method of testing does not have objectivity, test result is more unilateral, thinking of the invention
It is to use for reference construction depth Cleaning Principle, the method gathered materials by tiling evaluates the order of severity of loose disease.Found in practice, one
As it is much looser at wheel path, therefore can be by same section part, comparing the loose position of wheel path and disease-free
The tiling area of the little fine aggregate of tiling area change, each wheel path is evaluated with the loosening ratio gathered materials loose at non-wheel path
The order of severity of disease.
Specifically, the pine at one on wheel path is chosen respectively on the same cross section in the same track of tested drainage pavement
Dissipate the normal region on non-wheel path at region and one；Two parts of volume identical fine aggregates are taken to be laid in respectively at selected two
Region, and measure the tiling area in fine aggregate region at two；With fine aggregate at two the difference of the tiling area in region with it is thin
The ratio of tiling area of the normal region on non-wheel path of gathering materials refers to as the evaluation of tested drainage pavement loosening degree
Mark, ratio is bigger, shows the loose more serious of drainage pavement.
Preferably, the particle diameter of the fine aggregate is 0.3~0.6mm.
Preferably, it is fixed width by fine aggregate tiling when fine aggregate to be laid in region at selected two respectively
The rectangle of (preferably 40cm).So only need to measure the length of tiled area, you can calculate commenting for drainage pavement loosening degree
Valency index.
For the ease of public understanding, technical solution of the present invention is illustrated with a specific embodiment below.
For drainage pavement to be tested, chosen respectively at one on wheel path from the same cross section in same track first
Loose region and one at normal region (region i.e. without loose disease) on non-wheel path；
Then the fine aggregate (particle diameter of fine aggregate is 0.3~0.6mm) that two parts of volumes are all V is selected, by two parts of fine aggregates
Region at selected two is laid in respectively, and measures the tiling area (referring to Fig. 1, Fig. 2) in fine aggregate region at two；
During tiling fine aggregate, the plate that is bulldozed of sheet rubber can be stained with using bottom, motion of napping is repeated from the front to the back, somewhat firmly will be thin
Gather materials and push open forward as far as possible so that fine aggregate can fill rough road surfaces；Operated for the ease of in-site measurement,
Can before tiling fine aggregate, the rectangle (preferably 40cm) of fixed width is finished in region then at the length of side of rectangle by
Tiling is gathered materials before backward, is so only needed to measure the length of tiled area and can be calculated the evaluation of drainage pavement loosening degree and refers to
Mark.
Assuming that the length that fine aggregate is laid in the normal region on non-wheel path is L1(cm), then tiling area is S1For 40
×L1(cm2), the length that fine aggregate is laid in the loose region on wheel path is L2(cm), then tiling area is S2For 40 × L2
(cm2), the order of severity of the loose disease of drainage pavement to be tested can be evaluated with loosening ratio LR defined in following formula：
In summary, the present invention need not artificially observe loose position, result of the test more objective reality；And can effectively disappear
Except the testing differentia that drainage pavement self structure difference is brought, test result is more accurate, is more beneficial between different drainage pavements
Loose disease compare；Finally, technical solution of the present invention does not need any Special Equipment, and operation is simple, suitable for scene behaviour
Make.
Claims (4)
1. a kind of method of testing of drainage pavement loosening degree, it is characterised in that in the same of the same track of tested drainage pavement
The normal region on non-wheel path at the loose region and one at one on wheel path is chosen on one cross section respectively；Take two parts of volumes
Identical fine aggregate is laid in region at selected two respectively, and measures the tiling area in fine aggregate region at two；With
The fine aggregate difference of the tiling area in region and ratio of the tiling area of normal region of the fine aggregate on non-wheel path at two
As the evaluation index of tested drainage pavement loosening degree, ratio is bigger, shows the loose more serious of drainage pavement.
2. method of testing as claimed in claim 1, it is characterised in that the particle diameter of the fine aggregate is 0.3~0.6mm.
3. method of testing as claimed in claim 1, it is characterised in that fine aggregate is being laid in region at selected two respectively
When, fine aggregate is tiled as the rectangle of fixed width.
4. method of testing as claimed in claim 3, it is characterised in that the fixed width is 40cm.
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| CN201610112425.0A CN105780632B (en) | 2016-02-29 | 2016-02-29 | A kind of method of testing of drainage pavement loosening degree |
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| CN201610112425.0A CN105780632B (en) | 2016-02-29 | 2016-02-29 | A kind of method of testing of drainage pavement loosening degree |
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| CN105780632B true CN105780632B (en) | 2017-08-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10197486B2 (en) | 2017-04-30 | 2019-02-05 | Behrouz Mataei | Pavement drainage evaluation system |
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| CN108693340B (en) * | 2017-04-07 | 2021-01-29 | 交通运输部公路科学研究所 | Method for detecting flying disease of drainage asphalt pavement |
| CN111155406B (en) * | 2020-02-13 | 2021-07-13 | 河南交院工程技术集团有限公司 | Pavement structure depth measuring instrument and structure depth detection method |
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| JP4087208B2 (en) * | 2002-10-03 | 2008-05-21 | 株式会社Ｎｉｐｐｏコーポレーション | Road regeneration method |
| CA2500444A1 (en) * | 2005-03-11 | 2006-09-11 | Ville De Gatineau | Method for repairing holes in pavement |
| CN102505622A (en) * | 2011-10-10 | 2012-06-20 | 同济大学 | Method for pavement condition nondestructive detection based on FWD |
| CN103306185A (en) * | 2013-05-28 | 2013-09-18 | 山西省交通科学研究院 | Bituminous pavement track field evaluation method |
| CN104975556B (en) * | 2015-07-08 | 2016-04-13 | 长安大学 | The loose identification of a kind of flexible pavement based on three-dimensional laser technology and computational methods |
| CN105064188A (en) * | 2015-07-30 | 2015-11-18 | 江苏省交通规划设计院股份有限公司 | Ground penetrating radar complete equipment-based pavement structure internal quality evaluation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10197486B2 (en) | 2017-04-30 | 2019-02-05 | Behrouz Mataei | Pavement drainage evaluation system |
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Application publication date: 20160720 Assignee: SHANGHAI DAOCHUN TRANSPORTATION TECHNOLOGY Co.,Ltd. Assignor: Nanjing Forestry University Contract record no.: 2018320000348 Denomination of invention: Test method for ravelling degree of water drainage pavement Granted publication date: 20170829 License type: Common License Record date: 20181123 Application publication date: 20160720 Assignee: Nanjing moistening Engineering Consulting Co.,Ltd. Assignor: Nanjing Forestry University Contract record no.: 2018320000349 Denomination of invention: Test method for ravelling degree of water drainage pavement Granted publication date: 20170829 License type: Common License Record date: 20181123 |
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Application publication date: 20160720 Assignee: NANJING XIYING MEASUREMENT CONTROL TECHNOLOGY Co.,Ltd. Assignor: Nanjing Forestry University Contract record no.: X2019320000183 Denomination of invention: Test method for ravelling degree of water drainage pavement Granted publication date: 20170829 License type: Common License Record date: 20191031 |
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