CN202853992U - Tester for rebound modulus of soil matrix - Google Patents
Tester for rebound modulus of soil matrix Download PDFInfo
- Publication number
- CN202853992U CN202853992U CN 201220527490 CN201220527490U CN202853992U CN 202853992 U CN202853992 U CN 202853992U CN 201220527490 CN201220527490 CN 201220527490 CN 201220527490 U CN201220527490 U CN 201220527490U CN 202853992 U CN202853992 U CN 202853992U
- Authority
- CN
- China
- Prior art keywords
- lever
- suspended
- briquetting
- soil matrix
- rebound modulus
- 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.)
- Expired - Lifetime
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a tester for the rebound modulus of a soil matrix. The tester comprises a workbench, a lever suspending frame, a lever, a pressing block, a test mould and a transition rod, wherein the lever suspending frame is fixedly arranged on the workbench, the test mould is arranged on the workbench, a lever is suspended on the lever suspending frame, a weight is arranged at one end of the lever in a penetrating mode, the transition rod is suspended on the lever, the pressing block is suspended on the transition rod, one end of the transition rod is provided with a weight frame in a suspending way, the weight penetrated on the lever and the weight frame are respectively arranged at two sides of the pressing block, and when the rebound modulus of the soil matrix is tested, the pressing block is pressed on a soil matrix sample in the test mould. The transition rod is assembled, so that the lever can not be inclined due to the height change of the pressing block, and the weight penetrated on the lever is hard to move or the barycenter of the weight is hard to change corresponding to the position on the lever when the rebound modulus of the soil matrix is tested; and therefore, the data test accuracy can be guaranteed.
Description
Technical field
The utility model relates to a kind of determining instrument of the modulus of resilience, more specifically is a kind of sand base modulus of resilience analyzer, dependent territory worker's test apparatus technical field.
Background technology
The modulus of resilience refers to roadbed, the ratio of its corresponding resilience strain of the stress that road surface and road-making material produce under load action, Rebound Modulus of Subgrade represents that soil matrix is in elastic deformation in the stage, under Action of Vertical Loads, the ability of opposing vertical deformation, if vertical load is definite value, the larger perpendicular displacement that then produces of Rebound Modulus of Subgrade value is just little; If vertical displacement is definite value, modulus of resilience value is larger, and then to bear the ability of external load effect just larger for soil matrix, therefore, adopts the modulus of resilience as the index of soil matrix compressive strength in the Pavement Design.
Existing Rebound Modulus of Subgrade analyzer comprises worktable, lever hanger bracket, lever, briquetting and die trial, and the lever hanger bracket is fixed on the worktable, and die trial is placed on the worktable, and lever is suspended on the lever hanger bracket, and briquetting is suspended on the lever; End at lever is installed with counterweight, and the other end is provided with and hangs with the counterweight frame, counterweight frame changeable counterweight; When carrying out Rebound Modulus of Subgrade mensuration, briquetting is pressed on the interior soil matrix sample of die trial, by increasing and decreasing counterweight at the counterweight frame, measure the height change of briquetting, then the relation between the height change of the quality by counterweight on the counterweight frame and briquetting calculates the Rebound Modulus of Subgrade value, and the Rebound Modulus of Subgrade analyzer of said structure has the characteristics such as simple in structure, easy to operate.But because when Rebound Modulus of Subgrade was measured, the height change of briquetting can cause the inclination of lever, the inclination of lever makes the counterweight that is through on the lever move easily or the counterweight center of gravity changes corresponding to position on the lever, thereby affects the accuracy of determination data.
The utility model content
For above-mentioned situation, the problem that the utility model quasi-solution is determined provides a kind of when Rebound Modulus of Subgrade is measured, and the height change of briquetting can not cause the Rebound Modulus of Subgrade analyzer of the inclination of lever, thereby improves the accuracy of determination data.
For addressing the above problem, the utility model has adopted following technical scheme: a kind of Rebound Modulus of Subgrade analyzer comprises worktable, the lever hanger bracket, lever, briquetting and die trial, described lever hanger bracket is fixed on the worktable, described die trial is placed on the worktable, described lever is suspended on the lever hanger bracket, one end of described lever is installed with counterweight, it also comprises transiting rod, described transiting rod is suspended on the lever, described briquetting is suspended on and crosses on the bar, and a described end that crosses bar is provided with and hangs with the counterweight frame, and the counterweight that is installed with on the described lever and counterweight frame are respectively in two sides of briquetting, when carrying out Rebound Modulus of Subgrade mensuration, briquetting is pressed on the interior soil matrix sample of die trial.
Adopt said structure, Rebound Modulus of Subgrade analyzer of the present utility model is because group has entered transiting rod, transiting rod is suspended on the lever, briquetting is suspended on the transiting rod, the counterweight frame is suspended on an end of transiting rod, when carrying out Rebound Modulus of Subgrade mensuration, the height change of briquetting only can cause the inclination of transiting rod, can not cause the inclination of lever, because the counterweight frame is an end that is suspended on transiting rod, namely the counterweight frame is to be rotatably connected on transiting rod, and its center of gravity can not change corresponding to position on the lever.Because the height change of briquetting can not cause the inclination of lever, be not easy to make the counterweight that is through on the lever to move or the counterweight center of gravity changes corresponding to position on the lever, thereby guaranteed the accuracy of determination data.
Description of drawings
Fig. 1 is the structural representation of the utility model Rebound Modulus of Subgrade analyzer.
Among the figure: 1-worktable, 2-lever hanger bracket, 3-lever, 4-briquetting, 5-die trial, 6-transiting rod, 7-counterweight frame, 8-counterweight.
Embodiment
As shown in Figure 1, Rebound Modulus of Subgrade analyzer of the present utility model comprises worktable 1, lever hanger bracket 2, lever 3, briquetting 4 and die trial 5, described lever hanger bracket 2 is fixed on the worktable 1, described die trial 5 is placed on the worktable 1, described lever 3 is suspended on the lever hanger bracket 2, and an end of described lever is installed with counterweight 8.
The characteristics of Rebound Modulus of Subgrade analyzer of the present utility model are: it also comprises transiting rod 6, described transiting rod 6 is suspended on the lever 3, described briquetting 4 is suspended on the transiting rod 6, a described end that crosses bar 6 is provided with and hangs with counterweight frame 7, the counterweight 8 that is installed with on the described lever and counterweight frame 7 are respectively in two sides of briquetting 4, carrying out Rebound Modulus of Subgrade when measuring, briquetting 4 is pressed on the soil matrix sample in the die trial 5.
Claims (1)
1. a Rebound Modulus of Subgrade analyzer comprises worktable (1), lever hanger bracket (2), lever (3), briquetting (4) and die trial (5), described lever hanger bracket (2) is fixed on (1) on the worktable, described die trial (5) is placed on the worktable (1), described lever (3) is suspended on the lever hanger bracket (2), one end of described lever is installed with counterweight (8), it is characterized in that it also comprises transiting rod (6), described transiting rod (6) is suspended on the lever (3), described briquetting (4) is suspended on the transiting rod (6), a described end that crosses bar (6) is provided with and hangs with counterweight frame (7), the counterweight that is installed with on the described lever (8) and counterweight frame (7) are respectively in two sides of briquetting (4), when carrying out Rebound Modulus of Subgrade mensuration, briquetting (4) is pressed on the interior soil matrix sample of die trial (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220527490 CN202853992U (en) | 2012-10-16 | 2012-10-16 | Tester for rebound modulus of soil matrix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220527490 CN202853992U (en) | 2012-10-16 | 2012-10-16 | Tester for rebound modulus of soil matrix |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202853992U true CN202853992U (en) | 2013-04-03 |
Family
ID=47985176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220527490 Expired - Lifetime CN202853992U (en) | 2012-10-16 | 2012-10-16 | Tester for rebound modulus of soil matrix |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202853992U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949888A (en) * | 2015-06-05 | 2015-09-30 | 西安建筑科技大学 | Multiscale loading device for recycled concrete long-term crack test |
| CN104949885A (en) * | 2015-06-05 | 2015-09-30 | 西安建筑科技大学 | Loading and measuring device for recycled concrete long-term deformation test |
| CN115290458A (en) * | 2022-04-22 | 2022-11-04 | 吉林建筑大学 | Device and method for testing lignin-modified powdery clay resilience modulus |
-
2012
- 2012-10-16 CN CN 201220527490 patent/CN202853992U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949888A (en) * | 2015-06-05 | 2015-09-30 | 西安建筑科技大学 | Multiscale loading device for recycled concrete long-term crack test |
| CN104949885A (en) * | 2015-06-05 | 2015-09-30 | 西安建筑科技大学 | Loading and measuring device for recycled concrete long-term deformation test |
| CN115290458A (en) * | 2022-04-22 | 2022-11-04 | 吉林建筑大学 | Device and method for testing lignin-modified powdery clay resilience modulus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |