CN203768953U - Support for improving lateral rigidity of reinforced earth retaining wall model test box - Google Patents
Support for improving lateral rigidity of reinforced earth retaining wall model test box Download PDFInfo
- Publication number
- CN203768953U CN203768953U CN201420139443.4U CN201420139443U CN203768953U CN 203768953 U CN203768953 U CN 203768953U CN 201420139443 U CN201420139443 U CN 201420139443U CN 203768953 U CN203768953 U CN 203768953U
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- model test
- test box
- support
- reinforced earth
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Abstract
The utility model discloses a support for improving lateral rigidity of a reinforced earth retaining wall model test box. The support is characterized in that the front ends and the rear ends of the bottoms of two lateral supports (1) are connected in a threaded manner through a front pull rod (2a) and a rear pull rod (2b) respectively, the model test box (4) is disposed among the two lateral supports (1), the front pull rod (2a) and the rear pull rod (2b), side plates (4a) of the model test box (4) fit with the lateral supports (1), and the front ends of the tops of the two lateral supports (1) are connected with a front connecting rod (3a) penetrating the side plates (4a) in a threaded manner. The support can laterally constrain the reinforced earth retaining wall model test box well to improve lateral rigidity of a box body, a model test is ensured not to be affected greatly by lateral deformation of the box body, and a test result is enabled to be more accurate; the support is detachable, reusable, convenient to store and suitable for model boxes different in size.
Description
Technical field
The utility model relates to a kind of support that improves reinforced earth bulkhead model test box lateral rigidity.
Background technology
Reinforced earth bulkhead is to banket or a kind of light supporting structure of side slope for retaining roadbed.It is by barricade panel, and lacing wire material and the three that bankets form, and utilize the rubbing action between lacing wire material and filler, improves the deformation condition of the soil body and improves the engineering properties of the soil body, thereby reach the stable soil body, avoids the caving in of side slope, slippage.The features such as because it has easy construction, shock resistance is strong, saves and takes up an area, and cost is low.Therefore, reinforced earth bulkhead is used widely in roadbed now and Reinforcement Works of Rock Slopes.The research of reinforced earth retaining wall structure is mainly contained to two approach, and one is theory analysis, comprises analytic method and numerical method; Another important channel is experimental study, comprises prototype test and indoor model test.Because prototype test is wasted time and energy, therefore adopt indoor model test technology to obtain more application to reinforced earth bulkhead research.
Model test box is the important device of carrying out reinforced earth retaining wall structure indoor model test, for the experimental studies such as operating characteristic, failure mode, lacing wire arrangement and structural-load-carrying capacity of reinforced earth bulkhead.In model casing, insert after model filler, as the model casing sidewall rigidity of simulating boundary, should adapt with reinforced earth bulkhead plane strain deformation condition.Therefore, whether model casing has good lateral rigidity, be directly connected to the accuracy of simulated reinforced earth bulkhead result of the test, the excessive lateral deformation of casing will have material impact to reinforced earth bulkhead operating characteristic, the result even leading to errors, especially at reinforced earth bulkhead, bear under certain imposed load condition, wall box distortion can be more obvious.So, be necessary model casing lateral rigidity to strengthen.
At present, in the indoor model test of reinforced earth bulkhead, the model casing adopting is all generally that Combined wooden forms, its rigidity is lower, cannot meet the high request to model casing sidewall rigidity in test, and conventional lateral restraint device is directly fixed on model casing, be difficult to recycling, non-dismountable, inconvenience is deposited.
Utility model content
The purpose of this utility model is to provide a kind of support that improves reinforced earth bulkhead model test box lateral rigidity, this support can well carry out lateral restraint to reinforced earth bulkhead model test box, improve the lateral rigidity of casing, guarantee that model testing is not subject to the excessive impact of casing lateral deformation, makes result of the test more accurate; And the model casing that it is detachable, can to reuse, be convenient to deposit, be applicable to different size.
The utility model is to realize the technical scheme that its goal of the invention adopts: a kind of support that improves reinforced earth bulkhead model test box lateral rigidity, it is characterized in that: front end, the rear end of two side stand bottoms are threaded by front tension bar and back stay respectively, model test box is placed between two side stands, front tension bar and back stays, and the side plate of model test box and side stand are affixed; The front end at two side stand tops is threaded and runs through the front rod of side plate.
Compared with prior art, the beneficial effects of the utility model are:
One, by front tension bar, back stay, two side stands are connected and the side plate of two side stands and model test box is affixed, and by front rod, the front top of model test box is connected, thereby can well to reinforced earth bulkhead model test box, carry out lateral restraint, improve the lateral rigidity of casing, guarantee that model testing is not subject to the excessive impact of casing lateral deformation, makes result of the test more accurate.
Two, after model testing finishes, screw off the nut on front tension bar, back stay and front rod, whole support can be splitted into two side stands and three bars (front tension bar, back stay and front rod), be convenient to deposit; While again testing, again connect three bars, can reuse.During connection, adjust attaching nut's position applicable to the model casing of different size, versatility is good.
By plural tripod, the tie-beam by bottom is formed by connecting above-mentioned side stand.
Like this, both guaranteed the lateral rigidity of side stand, lowered again material usage, lowered cost of manufacture simultaneously.
The middle part at two above-mentioned side stand tops is threaded and runs through the middle connecting rod of side plate.
The rear end at two above-mentioned side stand tops is threaded and runs through the back link of side plate.
The middle connecting rod, the back link that increase, further strengthened the lateral restraint to model casing, improved the lateral rigidity of casing.
Above-mentioned front rod is provided with stop nut at the position of the inner surface near side plate.
The stop nut of front rod in side plate limited the introversion distortion on side plate top, further strengthened the lateral restraint on model casing top, improved the lateral rigidity of casing.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 be the utility model embodiment not placing mold molding box and removed before, during and after the structural representation of connecting rod.
Fig. 2 is the structural representation of the utility model embodiment.
The specific embodiment
Embodiment
Fig. 1, Fig. 2 illustrate, a kind of specific embodiment of the present utility model, a kind of support that improves reinforced earth bulkhead model test box lateral rigidity, it is characterized in that: the front end of two side stand 1 bottoms, rear end are threaded by front tension bar 2a and back stay 2b respectively, model test box 4 is placed between two side stands 1, front tension bar 2a and back stay 2b, and the side plate 4a of model test box 4 and side stand 1 are affixed; The front end at two side stand 1 tops is threaded and runs through the front rod 3a of side plate 4a.
This routine side stand 1 is formed by connecting by the tie-beam 1b of bottom by plural tripod 1a.
The middle part at two side stand 1 tops of this example is threaded and runs through the middle connecting rod 3b of side plate 4a.The rear end at two side stand 1 tops is threaded and runs through the back link 3c of side plate 4a.
This routine front rod 3a is provided with stop nut 5 at the position of the inner surface near side plate 4a.
Claims (5)
1. a support that improves reinforced earth bulkhead model test box lateral rigidity, it is characterized in that: front end, the rear end of two side stands (1) bottom are threaded by front tension bar (2a) and back stay (2b) respectively, model test box (4) is placed between two side stands (1), front tension bar (2a) and back stay (2b), and the side plate (4a) of model test box (4) is affixed with side stand (1); The front end at two side stands (1) top is threaded and runs through the front rod (3a) of side plate (4a).
2. a kind of support that improves reinforced earth bulkhead model test box lateral rigidity as claimed in claim 1, is characterized in that: by plural tripod (1a), the tie-beam (1b) by bottom is formed by connecting described side stand (1).
3. a kind of support that improves reinforced earth bulkhead model test box lateral rigidity as claimed in claim 1, is characterized in that: the middle part at described two side stands (1) top is threaded and runs through the middle connecting rod (3b) of side plate (4a).
4. a kind of support that improves reinforced earth bulkhead model test box lateral rigidity as claimed in claim 3, is characterized in that: the rear end at described two side stands (1) top is threaded and runs through the back link (3c) of side plate (4a).
5. a kind of support that improves reinforced earth bulkhead model test box lateral rigidity as claimed in claim 4, is characterized in that: described front rod (3a) is provided with stop nut (5) at the position of the inner surface near side plate (4a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420139443.4U CN203768953U (en) | 2014-03-26 | 2014-03-26 | Support for improving lateral rigidity of reinforced earth retaining wall model test box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420139443.4U CN203768953U (en) | 2014-03-26 | 2014-03-26 | Support for improving lateral rigidity of reinforced earth retaining wall model test box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203768953U true CN203768953U (en) | 2014-08-13 |
Family
ID=51286160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420139443.4U Expired - Fee Related CN203768953U (en) | 2014-03-26 | 2014-03-26 | Support for improving lateral rigidity of reinforced earth retaining wall model test box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203768953U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975621A (en) * | 2015-07-07 | 2015-10-14 | 山东大学 | Multi-anchoring end retaining wall indoor model testing apparatus and testing method |
-
2014
- 2014-03-26 CN CN201420139443.4U patent/CN203768953U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975621A (en) * | 2015-07-07 | 2015-10-14 | 山东大学 | Multi-anchoring end retaining wall indoor model testing apparatus and testing method |
| CN104975621B (en) * | 2015-07-07 | 2016-11-02 | 山东大学 | A kind of many anchored end retaining wall indoor model test device and test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20170326 |