CN203053799U - Large-sized direct shear apparatus - Google Patents
Large-sized direct shear apparatus Download PDFInfo
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- CN203053799U CN203053799U CN 201220490433 CN201220490433U CN203053799U CN 203053799 U CN203053799 U CN 203053799U CN 201220490433 CN201220490433 CN 201220490433 CN 201220490433 U CN201220490433 U CN 201220490433U CN 203053799 U CN203053799 U CN 203053799U
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- box
- shear
- shear box
- fixed
- scale direct
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Abstract
The utility model discloses a large-sized direct shear apparatus, comprising a bottom plate, a shear box positioned on the bottom plate, a top baffle plate, a pair of upright posts, a transverse hydraulic power device and a vertical hydraulic power device, wherein the shear box comprises an upper shear box and a lower shear box; the upright posts are fixed on the bottom plate and positioned at two sides of the shear box respectively; the top baffle plate is fixed at the upper ends of the top baffle plate; the vertical hydraulic power device is fixed above the shear box and fixed on the lower surface of the top baffle plate; and the transverse hydraulic power device is fixed at the side of the shear box. The large-sized direct shear apparatus is simple in structure and high in modularized degree, overcomes the defects of large dead weight, high manufacturing cost and the like of the conventional large-sized direct shear apparatus, and has the advantages of miniaturization, light weight and the like; and the reliability and the convenience of test operation of the large-sized direct shear apparatus are improved.
Description
Technical field
The utility model relates to a kind of large-scale direct shear apparatus, and it is applicable to direct shear test indoor or the ground body.
Background technology
The unstability overwhelming majority of Geotechnical Engineering has shear failure to cause, the shear strength parameter of accurately determining the ground body is significant in Geotechnical Engineering is built, at present, shear strength parameter assay method commonly used has triaxial test and direct shear test, wherein direct shear test owing to simple to operate, applied widely use the most general.The engineering design of lot of domestic and foreign, construction all with direct shear test as one of main means of measuring ground body Shear Strength Index.Large-scale direct shear test has been improved soil body border stress condition to a certain extent because can adopt large dimension specimen, has overcome the influence of size effect and boundary effect, and therefore stability analysis has more reference significance to large-scale direct shear test result for Geotechnical Engineering.
In view of the vital role of large-scale direct shear apparatus in Geotechnical Engineering, domestic a lot of colleges and universities and scientific research institution all are equipped with large-scale direct shear apparatus, but the large-scale direct shear apparatus complex structure of prior art, from great, cost is also high, handle slightly being weak simultaneously aspect the friction force between the reduction shear box, these have all limited the generally use of the type equipment.
The utility model content
The purpose of this utility model provides a kind of large-scale direct shear apparatus, on can realizing large dimension specimen direct shear test basis, by modular design, keeps device structure simple and easy to operate, and improves its reliability.
The purpose of this utility model is achieved in that
A kind of large-scale direct shear apparatus, it includes base plate and is fixed in shear box on the described base plate, box under box and the shear box on the described shear box, it also includes the plate of fending off, a column, transverse hydraulic propulsion system and vertical hydraulic power unit, described column is fixed on the described base plate, and described column lays respectively at the both sides of described shear box, the described plate of fending off is fixed in the upper end of described column, described vertical hydraulic power unit is fixed in the top of shear box, and fix with the described plate of fending off, described transverse hydraulic propulsion system are fixed in the side of described shear box.
Form framed structure by the described plate of fending off, described column and described base plate, bear the internal force of described large-scale direct shear apparatus when working by simple framed structure; Simultaneously, respectively sample in the described shear box is applied vertical pressure and horizontal shear force by described vertical hydraulic power unit and described transverse hydraulic propulsion system, realization to the vertical pressurization of sample the time level improve existing large-scale direct shear apparatus complex structure, from great, the high deficiency of cost to the purpose of shearing.
Among embodiment, a pair of first guide rail is arranged fixedly on the described base plate therein, box is provided with the slide block that cooperates with described first guide rail under the described shear box.
By cooperating of described first guide rail and described slide block, not only limited the mobile direction under the effect of described transverse hydraulic propulsion system of box under the described shear box, and reduced the friction force of box and described base plate under the described shear box.
Among embodiment, the both sides of box are provided with second guide rail on the described shear box therein, and box is provided with the roller that cooperates with described second guide rail under the described shear box.By the cooperation of described roller and described second guide rail, not only limited on the described shear box moving direction between the box under the box and described shear box, and the friction force when reducing on the described shear box box changing of the relative positions under the box and described shear box.
Therein among embodiment, described large-scale direct shear apparatus also includes curved boom, box is provided with baffle plate near a side of described transverse hydraulic propulsion system on described shear box, and the two ends of described curved boom support with described column respectively, and the middle part of described curved boom and described baffle plate support.
When box under the described shear box is taking place in the laterally mobile process, the opposite direction that described curved boom can move the box under the described shear box of box on the described shear box supports, and it is laterally mobile to avoid it to take place.
Among embodiment, described curved boom is the oxbow front curved boom therein.
Therein among embodiment, on the described shear box under box and the described shear box box adopt dismountable fixed form to fix.
In the implementation process, at first with box alignment under box on the described shear box and the described shear box, and by fixture both are fixed; Shift described shear box integral body the outside of described vertical hydraulic power unit onto along described first guide rail, will load onto sample in the described shear box, push back then under the described vertical hydraulic power unit; When described transverse hydraulic propulsion system move, with the dismounting of the fixture between the box under box on the described shear box and the described shear box.
Among embodiment, it also includes brace therein, and an end of described brace and the described plate of fending off are fixed, and the other end of described brace and described base plate are fixed.
Among embodiment, described transverse hydraulic propulsion system are hydraulic jack therein.
Among embodiment, described vertical hydraulic power unit is hydraulic jack therein.
The utility model compared with prior art has following beneficial effect:
The utility model is that the simple structure of framework is born equipment internal force by the described plate of fending off, described column, described base plate and described brace; The vertical removable cover that promotes end face on the described shear box by described vertical hydraulic power unit applies vertical pressure to sample; Promote by described transverse hydraulic propulsion system laterally that box slides along described first guide rail under the described shear box; And on the described shear box under box, the described shear box friction force between the box by box both sides under the shear box roller and shear box on second guide rail of box both sides reduce; In the shear history, keep on the shear box box motionless by being erected on described column and the described shear box the described curved boom between the box backboard.Thereby realize the vertical pressurization of sample and the level process of the test to shearing.
The large-scale direct shear apparatus degree of modularity of the utility model height, simple in structure, improved the large-scale direct shear apparatus of prior art from great, the high deficiency of cost, have advantages such as miniaturization, lightweight, simultaneously, improved the reliability of large-scale direct shear apparatus.
Description of drawings
Fig. 1 is the front view of the large-scale direct shear apparatus of the utility model;
Fig. 2 is the vertical view of the large-scale direct shear apparatus of the utility model.
Embodiment
Extremely shown in Figure 2 as Fig. 1, the large-scale direct shear apparatus of the utility model, it includes base plate 11, and shear box, a column 12, transverse hydraulic propulsion system 13, vertical hydraulic power unit 14 and the plate 15 of fending off are fixedly arranged on the described base plate 11.Wherein, described column 12 is individually fixed in the forward and backward both sides of described shear box, and described transverse hydraulic propulsion system 13 then are fixed in the right side of described shear box, makes described transverse hydraulic propulsion system 13 apply horizontal power to described shear box; The described plate 15 of fending off is fixed in the upper end of described column 12, described vertical hydraulic power unit 14 is fixed in the back side (being the described plate 15 of the fending off one side relative with described shear box) of the described plate 15 of fending off, make the described vertical hydraulic power unit 14 can be relative with described shear box, thereby make described vertical hydraulic power unit 14 apply vertical power to described shear box.
Described shear box includes on the shear box box 17 under the box 16 and shear box, on the described shear box under box 16 and the described shear box box 17 fixing by latching 22, realize on the described shear box under the box 16 and described shear box detachable fixing between the box 17.Box 16 is provided with removable cover 161 on the described shear box, and box 16 has extended upward baffle plate 162 near the sidewall of described transverse hydraulic propulsion system 13 on the described shear box; Box 17 is provided with load transfer device 163 in the side near described transverse hydraulic propulsion system 13 under the described shear box, in the present embodiment, described load transfer device 163 is the cushion block of band arc-shaped concave, when guarantee shearing under transverse force center of effort and the described shear box upper surface of box 17 be positioned at sustained height, described transverse hydraulic propulsion system 13 apply horizontal thrust by described load transfer device 163 box 17 under the described shear box.A pair of first guide rail 18 is fixedly arranged on the described base plate 11, and box 17 is provided with the slide block 19 that cooperates with described first guide rail 18 under the described shear box.In the present embodiment, preferred described first guide rail 18 is two I-shaped guide rails that be arranged in parallel, the both sides of described slide block 19 are respectively equipped with the projection corresponding with described I-shaped guide rail, two described projectioies can catch on the recess of described I-shaped guide rail, thereby make box 16 on the described shear box when mobile with described base plate 11 between friction force, and limited the direction of box 17 movement under described transverse hydraulic propulsion system 13 effects under the described shear box.
Box 17 is when mobile under the described shear box in order to make, and box 16 can not move on the described shear box, and described large-scale direct shear apparatus also includes curved boom 23, and described curved boom 23 arms are the oxbow front curved boom.Before described transverse hydraulic propulsion system 13 actions, the two ends of described oxbow front curved boom 23 are supported with described column 12 respectively, the middle part of described oxbow front curved boom 23 then with described shear box on described baffle plate 162 on the box 16 support, limit the movement of box 16 on the described shear box in the horizontal.
The both sides of box 16 are respectively equipped with second guide rail 20 on the described shear box, and box 17 is provided with the roller 21 corresponding with described second guide rail 20 under the described shear box, and described roller 21 is preferably bearing roller.By cooperating of described second guide rail 20 and described roller 21, reduced the friction force when box 16 relatively moves on the box 17 and described shear box under the described shear box.In fact, also can on described shear box, roller be set the both sides of box 16, and the both sides of box 17 arrange second guide rail that matches with described roller under described shear box, can realize the purpose of this utility model equally.
In order to reduce the moment of torsion that column 12 bears described in the lateral shear process, described large-scale direct shear apparatus also includes a pair of brace 24, end to described brace 24 is fixed with described two ends of fending off plate 15 respectively, and the other end of described brace 24 is fixed with described base plate 11 respectively.
In this preferred embodiment, described transverse hydraulic propulsion system 13 and described vertical hydraulic power unit 14 are hydraulic jack, the piston rod of described transverse hydraulic propulsion system 13 is directly to described load transfer device 163 application of forces, promote under the described shear box box 17 levels to movement, the piston rod of described vertical hydraulic power unit 14 is exerted pressure by described removable cover 161 sample in the described shear box.
When described large-scale direct shear apparatus is worked, at first with 17 alignment of box under box 16 on the described shear box and the described shear box, and the described roller 21 that makes box 17 both sides under the described shear box is stuck on described second guide rail 20 of box 16 both sides on the described shear box, make on the described shear box under the box 16 and described shear box that box 17 can the smooth changing of the relative positions, and by described latching 22 that box under box 16 on the described shear box and the described shear box 17 is fixing.
Described shear box (comprise on the described shear box under the box 16 and described shear box box 17) is shifted onto the outside of described vertical hydraulic power unit 14 along described first guide rail 18, after in described shear box, loading onto sample, described removable cover 161 is covered box 16 upper surfaces on described shear box.
Then described shear box is back into described vertical hydraulic power unit 14 under, described oxbow front curved boom 23 is placed on the described removable cover 161, adjust the position of described shear box, the two ends of guaranteeing described oxbow front curved boom 23 are held in respectively on the described column 12, and the center section of described oxbow front curved boom 23 and described baffle plate 162 are supported, in the process of described transverse hydraulic propulsion system 13 actions, guarantee that box 16 is not moved in the horizontal direction on the described shear box.
During vertical the loading, apply design pressure to the end face of sample by the described vertical hydraulic power unit 14 that is fixed on the described plate 15 of fending off by described removable cover 161; The structural internal force that the counter-force that vertical pressurization produces is made up of the described plate 15 of fending off, described column 12 and described base plate 11 is born.
In level when shearing, at first described latching 22 is taken out, by being fixed on transverse hydraulic propulsion system 13 applied thrusts on the described base plate 11 to described load transfer device 163, in level under thrust, box 17 slides laterally under the described shear box, wherein, box 17 basal surfaces slide along described first guide rail 18 by described slide block 19 under the described shear box; 17 liang of side wheels 21 of box box 16 both sides second guide rail 20 on the described shear box rolls under the described shear box.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (9)
1. large-scale direct shear apparatus, it includes base plate and is positioned at shear box on the described base plate, box under box and the shear box on the described shear box, it is characterized in that, it also includes the plate of fending off, one column, transverse hydraulic propulsion system and vertical hydraulic power unit, described column is fixed on the described base plate, and described column lays respectively at the both sides of described shear box, the described plate of fending off is fixed in the upper end of described column, described vertical hydraulic power unit is fixed in the top of shear box, and fix with the described plate of fending off, described transverse hydraulic propulsion system are fixed in the side of described shear box.
2. large-scale direct shear apparatus according to claim 1 is characterized in that, a pair of first guide rail is fixedly arranged on the described base plate, and box is provided with the slide block that cooperates with described first guide rail under the described shear box.
3. large-scale direct shear apparatus according to claim 1 is characterized in that, the both sides of box are provided with second guide rail on the described shear box, and box is provided with the roller that cooperates with described second guide rail under the described shear box.
4. large-scale direct shear apparatus according to claim 1 is characterized in that, described shear box lower box surface fixedly has load transfer device to a side of described transverse hydraulic propulsion system.
5. according to claim 1 or 4 described large-scale direct shear apparatuses, it is characterized in that it also includes curved boom, box is provided with baffle plate near a side of described transverse hydraulic propulsion system on described shear box, the two ends of described curved boom support with described column respectively, and the middle part of described curved boom and described baffle plate support.
6. large-scale direct shear apparatus according to claim 1 is characterized in that, on the described shear box under box and the described shear box box adopt dismountable fixed form to fix.
7. large-scale direct shear apparatus according to claim 1 is characterized in that, it also includes brace, and an end of described brace and the described plate of fending off are fixed, and the other end of described brace and described base plate are fixed.
8. large-scale direct shear apparatus according to claim 1 is characterized in that, described transverse hydraulic propulsion system are hydraulic jack.
9. large-scale direct shear apparatus according to claim 1 is characterized in that, described vertical hydraulic power unit is hydraulic jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220490433 CN203053799U (en) | 2012-09-24 | 2012-09-24 | Large-sized direct shear apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220490433 CN203053799U (en) | 2012-09-24 | 2012-09-24 | Large-sized direct shear apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203053799U true CN203053799U (en) | 2013-07-10 |
Family
ID=48736741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220490433 Expired - Fee Related CN203053799U (en) | 2012-09-24 | 2012-09-24 | Large-sized direct shear apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203053799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854069A (en) * | 2012-09-24 | 2013-01-02 | 中国能源建设集团广东省电力设计研究院 | Large-scale direct shear apparatus |
-
2012
- 2012-09-24 CN CN 201220490433 patent/CN203053799U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854069A (en) * | 2012-09-24 | 2013-01-02 | 中国能源建设集团广东省电力设计研究院 | Large-scale direct shear apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee before: Guangdong Electric Power Design Institute of CEEC |
|
| 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: 20130710 Termination date: 20200924 |