CN206974406U - Pavement structure depth testing device - Google Patents
Pavement structure depth testing device Download PDFInfo
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- CN206974406U CN206974406U CN201720927689.1U CN201720927689U CN206974406U CN 206974406 U CN206974406 U CN 206974406U CN 201720927689 U CN201720927689 U CN 201720927689U CN 206974406 U CN206974406 U CN 206974406U
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- sylphon
- sandbox
- sand
- crossbeam
- slide bar
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Abstract
The utility model discloses a kind of pavement structure depth testing device, is mainly made up of storage sand device and scraping device, and storage sand device includes being connected with each other and the upper sylphon of up/down perforation and lower sylphon, and upper sylphon side wall is provided with the sandbox that overflows, and lower sylphon side wall, which is provided with, receives sandbox；Scraping device includes slide bar, linear bearing, crossbeam and scraping blade, and slide bar is located at the two relative lateral walls of sandbox that overflow, and crossbeam is connected by linear bearing with slide bar, and scraping blade is located on crossbeam and directly over upper sylphon.Carry out that the sand sample that cross section is rectangle can be spread out out during pavement structural depth test using the utility model, and sand sample strikes off consistent, therefore result of the test is accurate, and repeatability and repdocutbility are preferable.In addition, the device also has the characteristics that suitable for recyclable most of construction depth sand, simple to operate and low cost after indoor test specimen and the test of live pavement structural depth, experiment.
Description
Technical field
The utility model belongs to road engineering testing equipment field, more particularly to a kind of pavement structure depth testing device.
Background technology
Pavement structural depth refers to the mean depth of its surface opening hole, is for road table macro-asperity, drainage
The important indicator of energy and antiskid performance evaluation.At present, China《Highway subgrade road surface on-the-spot test code》(JTG E60-2008)
Method for pavement structural depth test mainly has a sand patch method and laser method, wherein sand patch method be divided into again manual sanding with it is electronic
Two kinds of sanding.Manual sand patch method instrument is cheap, and test operation is simple, but can not spread sand to be circular during test, and pave face
Product error in measurement is big, while pressure size differs when different testers are bulldozed sand sample, excessive or too small may cause sanding
Surface is not plane, therefore its measuring accuracy is not high.And when using electronic sand patch method, though caused by manual operation can be effectively reduced by mistake
Difference, but its abrasive band spread out is in irregular shape, causes areal calculation larger error to be present and directly affects test result precision.Make
Speed is fast when carrying out construction depth measurement with laser method, efficiency high, but equipment is expensive, complex operation, and is not suitable for existing tight
The pavement structural depth test of the damaged disease of weight, it is difficult to which large-scale promotion uses.
Utility model content
The technical problems to be solved in the utility model be to provide it is a kind of it is simple in construction, facilitate easy-to-use, the accurate road surface of result
Construction depth test device.
In order to solve the above technical problems, the utility model uses following technical scheme：Pavement structure depth testing device, it is main
To be made up of storage sand device and scraping device, storage sand device includes being connected with each other and the upper sylphon of up/down perforation and lower sylphon, on
Sylphon side wall is provided with the sandbox that overflows, and lower sylphon side wall, which is provided with, receives sandbox；Scraping device includes slide bar, linear bearing, crossbeam and scraping blade,
Slide bar is located at the two relative lateral walls of sandbox that overflow, and crossbeam is connected by linear bearing with slide bar, and scraping blade is located on crossbeam and is located at
Directly over upper sylphon.
Scraping blade just contacts with the box top of upper sylphon.
The box top and cassette bottom of upper sylphon and lower sylphon are open, and the cassette bottom of upper sylphon is provided with groove, and the box top of lower sylphon is set
There is convex falcon, upper sylphon is connected with lower sylphon by the groove being mutually matched with convex falcon.
The box of upper sylphon is risen in the case top for the sandbox that overflows, and the convex falcon of lower sylphon flushes with receiving the case top of sandbox.
The cross section of upper sylphon and lower sylphon is rectangle.
The problem of existing for the test of existing pavement structural depth, inventor designs and has made a kind of pavement structural depth
Test device, mainly it is made up of storage sand device and scraping device, storage sand device includes being connected with each other and the upper sylphon of up/down perforation
With lower sylphon, upper sylphon side wall is provided with the sandbox that overflows, and lower sylphon side wall, which is provided with, receives sandbox；Scraping device include slide bar, linear bearing,
Crossbeam and scraping blade, slide bar are located at the two relative lateral walls of sandbox that overflow, and crossbeam is connected by linear bearing with slide bar, and scraping blade is located at horizontal stroke
On beam and directly over upper sylphon.It is rectangle that can spread out out cross section when carrying out pavement structural depth test using the utility model
Sand sample, and sand sample strikes off consistent, therefore result of the test is accurate, and repeatability and repdocutbility are preferable.In addition, the device also has
Suitable for recyclable most of construction depth sand, simple to operate after indoor test specimen and the test of live pavement structural depth, experiment
And the features such as low cost.
Brief description of the drawings
Fig. 1 is the structural representation (being overlooked above upper sylphon) of the utility model pavement structure depth testing device.
Fig. 2 is sectional view of the pavement structure depth testing device along A-A in Fig. 1.
In figure：1. slide bar, 2. linear bearings, 3. crossbeams, 4. scraping blades, 5. grooves, 6. convex falcons, sylphon on 7., 8. times sylphons,
9. overflow sandbox, 10. receive sandbox.
Embodiment
First, the basic structure of pavement structure depth testing device
As depicted in figs. 1 and 2, pavement structure depth testing device of the present utility model, mainly by storage sand device and striking off
Device forms, and storage sand device includes being connected with each other and the upper sylphon 7 of up/down perforation and lower sylphon 8 (cross section is rectangle), overhead
The box top and cassette bottom of box and lower sylphon are open, and the cassette bottom of upper sylphon is provided with groove 5, and the box top of lower sylphon is provided with convex falcon 6, overhead
Box is connected with lower sylphon by the groove being mutually matched with convex falcon；Upper sylphon side wall is provided with the sandbox 9 that overflows, and lower sylphon side wall, which is provided with, to be received
Sandbox 10, the box of upper sylphon are risen in the case top for the sandbox that overflows, and the convex falcon of lower sylphon flushes with receiving the case top of sandbox；Scraping device bag
Slide bar 1, linear bearing 2, crossbeam 3 and scraping blade 4 are included, slide bar is located at the two relative lateral walls of sandbox that overflow, and crossbeam passes through linear bearing
It is connected with slide bar, scraping blade is located on crossbeam and just contacted directly over upper sylphon and with the box top of upper sylphon.
2nd, the application method of pavement structure depth testing device
<1>The upper and bottom section connection of test device is placed on glass plate, promotes crossbeam to be moved to scraping blade
The leftmost side, the construction depth that particle diameter is 0.15-0.3mm is filled into sylphon up and down with sand using scuppit, then promotes crossbeam 3 in cunning
Motion makes scraping blade 4 disposably will strike off the excessive sandbox 9 of inflow beyond the sand of the upper top surface of sylphon 7 on bar 2, weighs total sand loading amount and excessive sand
The sand gauge of case 8 counts chiltern amount m in lower sylphon in, and calculates construction depth sand apparent density according to following formula：
ρ=m/V
In formula：ρ is construction depth sand apparent density (g/cm in upper and lower sylphon3)；M is upper and lower sylphon sand loading quality (g)；
V is upper and lower sylphon volume (ml).
<2>Choose measuring point and cleaned out with hairbrush in its surface void and walk instrument side placed on it, repetition after impurity
Suddenly<1>Middle sand loading step calculates sylphon sand loading quality m up and down1(after the completion of being struck off in operation, test device upper part is removed, will
Sandbox 9 medium-fine sand recovery of overflowing weighs, while sand can flow into receipts sandbox in upper sylphon 7, and with scuppit by lower sylphon 8 apparently higher than
The fine sand on road surface shovels to be recycled into receipts sandbox 10), measuring point construction depth is calculated according to following formula：
TD=10 × (m1-m)/ρS
In formula：TD is measuring point sylphon areal extent construction depth (mm) up and down；m1Above and below during to carry out construction depth test
The sand loading quality (g) of sylphon；S is lower sylphon floor space (cm2)。
Experiment shows that compared with prior art, pavement structure depth testing device of the present utility model has following prominent excellent
Point：
1. the sand sample cross section that paves out is rectangle, and is provided with special scraping blade, its by crossbeam connect linear bearing and with
Slide bar is connected, and it is consistent to can guarantee that each sand sample strikes off, therefore uses the device to carry out result of the test essence during construction depth test
Really, repeatability and repdocutbility are preferable.
2. the device is applied to indoor test specimen and live pavement structural depth is tested, it specifically address indoor pavement skid resistance and decline
Becoming test specimen in characteristic research, construction depth can not be tested accurately on rectangle wheel path after small linear formula accelerates abrasion instrument abrasion
The problem of.
Sylphon and lower sylphon are mechanically connected on 3., and the recovery of most of construction depth sand can be realized in experiment
Utilize.
Claims (5)
1. a kind of pavement structure depth testing device, mainly it is made up of storage sand device and scraping device, it is characterised in that：The storage
Sand device includes being connected with each other and the upper sylphon of up/down perforation and lower sylphon, upper sylphon side wall are provided with the sandbox that overflows, lower sylphon side wall
Provided with receipts sandbox；The scraping device includes slide bar, linear bearing, crossbeam and scraping blade, slide bar be located at the sandbox that overflows it is relative two outside
Side wall, crossbeam are connected by linear bearing with slide bar, and scraping blade is located on crossbeam and directly over upper sylphon.
2. pavement structure depth testing device according to claim 1, it is characterised in that：The box of the scraping blade and upper sylphon
Top just contacts.
3. pavement structure depth testing device according to claim 1, it is characterised in that：The upper sylphon and lower sylphon
Box top and cassette bottom are open, and the cassette bottom of upper sylphon is provided with groove, and the box top of lower sylphon is provided with convex falcon, and upper sylphon and lower sylphon pass through
The groove being mutually matched connects with convex falcon.
4. pavement structure depth testing device according to claim 3, it is characterised in that：The box of the upper sylphon rise in
The case top of excessive sandbox, the convex falcon of lower sylphon flush with receiving the case top of sandbox.
5. pavement structure depth testing device according to claim 4, it is characterised in that：The upper sylphon and lower sylphon
Cross section is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720927689.1U CN206974406U (en) | 2017-07-27 | 2017-07-27 | Pavement structure depth testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720927689.1U CN206974406U (en) | 2017-07-27 | 2017-07-27 | Pavement structure depth testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206974406U true CN206974406U (en) | 2018-02-06 |
Family
ID=61398625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720927689.1U Active CN206974406U (en) | 2017-07-27 | 2017-07-27 | Pavement structure depth testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206974406U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174745A (en) * | 2020-02-13 | 2020-05-19 | 浙江水利水电学院 | Measuring device for architectural design |
| CN112577440A (en) * | 2021-01-20 | 2021-03-30 | 深圳市恒思文建筑工程有限公司 | Improved generation road surface structure degree of depth detection device |
-
2017
- 2017-07-27 CN CN201720927689.1U patent/CN206974406U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174745A (en) * | 2020-02-13 | 2020-05-19 | 浙江水利水电学院 | Measuring device for architectural design |
| CN111174745B (en) * | 2020-02-13 | 2021-03-30 | 浙江水利水电学院 | Measuring device for architectural design |
| CN112577440A (en) * | 2021-01-20 | 2021-03-30 | 深圳市恒思文建筑工程有限公司 | Improved generation road surface structure degree of depth detection device |
| CN112577440B (en) * | 2021-01-20 | 2022-04-12 | 黑龙江东北林大工程检测有限公司 | Improved generation road surface structure degree of depth detection device |
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