CN202471526U - Shearing box device for detecting soil residual strength - Google Patents
Shearing box device for detecting soil residual strength Download PDFInfo
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- CN202471526U CN202471526U CN2011205318722U CN201120531872U CN202471526U CN 202471526 U CN202471526 U CN 202471526U CN 2011205318722 U CN2011205318722 U CN 2011205318722U CN 201120531872 U CN201120531872 U CN 201120531872U CN 202471526 U CN202471526 U CN 202471526U
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- box
- shearing
- limiting plate
- shear
- shearing box
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Abstract
The utility model discloses a shearing box device for detecting soil residual strength, comprising an upper shearing box and a lower shearing box, wherein the upper shearing box and the lower shearing box are slidingly connected; the shearing box device further comprises a limiting plate, a rolling shaft and a fixing bolt; the limiting plate is lengthways provided with a fixing channel; the fixing bolt passes through the fixing channel to fix the limiting plate on the lower shearing box; the rolling shaft is transversely arranged on the inner surface of the limiting plate and above the upper shearing box; a left limiting plate is arranged at the left side of the lower shearing box; and a right limiting plate is arranged at the right side of the lower shearing box. The shearing box device overcomes the problem in the prior art that the lower shearing box is raised upwards under the condition of a large shearing displacement, grains flow out between the upper shearing box and the lower shearing box, a reciprocated shearing face is changed, a test error is great and the like; and the shearing box device has the characteristics of simple structure, low construction cost, low cost, and capability of controling the shearing effect is not limited under the condition of the large shearing displacement, controlling the upper shearing box to be not raised upwards, controlling that the grains do not flow out between the upper shearing box and the lower shearing box, controlling that the reciprocated shearing face is not changed, and the like.
Description
Technical field
The utility model relates to Geotechnical Engineering test field, is a kind of shear box device that is used to measure native residual strength specifically.
Background technology
Adopt repeatedly direct shear test to confirm that the residual strength of cohesive soil is a most widely used method in engineering at present; The fundamental test principle is under the burden pressure effect, with slow shear rate soil sample to be carried out big displacement to shear the minimum and stable shear resistance of acquisition, and the shearing condition of soil sample is the crucial controlling factor of test under the wherein big shear displacemant.
Contain the coarse grain fine grained soil and be one of the most common great soil group of the sliding band soil of side slope, the residual strength of this soil of Correct Determination is the important prerequisite of slope stability analysis.Because the applicable object of present standard strain controlled direct shear apparatus device is a cohesive soil; So when containing the coarse grain cohesive soil and make an experiment under the big shear displacemant condition because the off-centre of load tends to make shears the box perk, forms the slit and make that fine grained flows out, reciprocal problem such as shear surface change, cause test error big even cause test to be difficult to normally carry out thus.
The utility model content
The purpose of the utility model is to overcome the deficiency that above prior art exists, and provides that dilatancy effect under a kind of simple in structure, inexpensive, with low cost, the big shear displacemant condition of control is unrestricted, shearings go up box the shear box device that is used to measure native residual strength that particle outflow, reciprocal shear surface do not change does not take place not occur between the box under the box and shearing perk, shearings in.
In order to achieve the above object; The utility model adopts following technical scheme: a kind of shear box device that is used to measure native residual strength; Comprise shearing and go up box and shear box down that box is slidingly connected box with shearing down in the shearing, also comprises limiting plate, roller bearing and set bolt; Vertically offer stationary conduit on the limiting plate; Set bolt passes stationary conduit is fixed on the following box of shearing limiting plate; The box top is at limiting plate inside surface horizontally set roller bearing in the shearing; Limiting plate is specially left limit plate and right limit plate, shears down and on the left of the box left limit plate is set, and shearing down, the box right side is provided with the right limit plate.
For fixing limiting plate, the left and right sides lower external face of box is respectively offered 2 bolt interfaces under the said shearing, and bolt interface correspondence is offered stationary conduit, and set bolt is connected with the bolt interface.
Perk does not take place and produces better effect in box in order to guarantee to shear upward, and said roller bearing is provided with more than 2 on the right limit plate being provided with on the left limit plate more than 2.
Perk does not take place and produces better effect in box in order to guarantee to shear upward, and said roller bearing is provided with 3 on the left limit plate, be provided with 3 on the right limit plate.
As a kind of preferred construction, said roller bearing comprises stationary shaft and roller; Stationary shaft one end is fixed on the limiting plate inside surface, and the other end of stationary shaft connects roller.
For limiting plate is moved up and down, said stationary conduit is a strip.
For in order to be effective, said roller is arranged on to shear and goes up between box side and the shearing dress appearance oral-lateral limit that upward the box side is corresponding.
For the ease of controlled deformation, said limiting plate is the rigidity limiting plate, like the stainless steel limiting plate.
For the ease of drawing materials and increasing the service life, said roller is the stainless steel roller.
In order to practice thrift cost, said roller is a plastics steel roller.
Preferably, the box upper surface is 0.5～1.5cm apart from the idler wheel bottom distance in the said shearing
The principle of work of the utility model: a kind of shear box device that is used to measure native residual strength comprises shearing and goes up box and shear box down that box is slidingly connected box with shearing down in the shearing, also comprises limiting plate, roller bearing and set bolt; Vertically offer stationary conduit on the limiting plate; Set bolt passes stationary conduit is fixed on the following box of shearing limiting plate; The box top is at limiting plate inside surface horizontally set roller bearing in the shearing; Limiting plate is specially left limit plate and right limit plate, shears down and on the left of the box left limit plate is set, and shearing down, the box right side is provided with the right limit plate.
Box adopts standard direct shear apparatus shear box to box with shearing down in the shearing; The soil sample for preparing packed into shear to go up in the box; Coarse grain particle diameter based on soil sample is confirmed the parting size; Thereby judge roller bearing and shear the spacing size that goes up the box surface; Regulate the position of set bolt at stationary conduit; And limiting plate fixed with set bolt, like this roller bearing with shear the spacing that goes up the box surface and also just be fixed up.Method according to the repeated shear test begins to carry out shear test; Because roller bearing has certain spacing with shear going up between the box, if cutting will make when expanding phenomenon, soil shears upward the box certain distance that moves up, can not limit native dilatancy effect; And when shear displacemant bigger; When box had perk trend and offsetting in the shearing, roller bearing can so just guarantee normally carrying out of shearing through freely rotating restriction in good time.Accomplish repeatedly shear, test findings reaches and can lay down roller bearing after stable and shear once again, guarantees really to obtain residual strength.After the off-test set bolt is unloaded, limiting plate and roller bearing just can conveniently take off, and revert to traditional direct shear apparatus shear box smoothly.
The utility model has following advantage and effect with respect to prior art:
1, the utility model has adopted limiting plate, roller bearing and set bolt; Have that dilatancy effect under simple in structure, inexpensive, with low cost, the big shear displacemant condition of control is unrestricted, shearings go up box the characteristics that particle outflow, reciprocal shear surface do not change do not take place not occur between the box under the box and shearing perk, shearings in.
2, the utility model has adopted roller bearing on the left limit plate, to be provided with 3, is provided with 3 on the right limit plate, has simple in structure and the good characteristics of test effect.
3, the utility model convenient disassembly is simply reequiped on traditional direct shear apparatus shear box, can constitute the utility model rapidly, reaches the better controlling effect; After the function of accomplishing the required control of the utility model, can revert to traditional direct shear apparatus shear box rapidly.
Description of drawings
Fig. 1 is used to measure the one-piece construction synoptic diagram of the shear box of native residual strength for the utility model;
Fig. 2 is used to measure the front elevation of the shear box of native residual strength for the utility model.
Label and title are following among the figure:
| 1 | Box in the shearing | 2 | Shear box down |
| 3 | The |
4 | The right limit plate |
| 5 | Roller bearing | 6 | |
| 7 | |
8 | |
| 9 | |
10 | Dress appearance mouth |
Embodiment
For ease of it will be appreciated by those skilled in the art that the utility model is done further to specify below in conjunction with accompanying drawing and embodiment.
Embodiment:
As depicted in figs. 1 and 2, a kind of shear box device that is used to measure native residual strength comprises shearing and goes up box 1 and shear box 2 down that box 2 is slidingly connected box 1 with shearing down in the shearing, also comprises limiting plate, roller bearing 5 and set bolt 6; Vertically offer stationary conduit 7 on the limiting plate; Set bolt 6 passes stationary conduit 7 is fixed on the following box 2 of shearing limiting plate; Box 1 top is at limiting plate inside surface horizontally set roller bearing 5 in the shearing; Limiting plate is specially left limit plate 3 and right limit plate 4, and box 2 left sides are provided with left limit plate 3 under shearing, and shearing down, box 2 right sides are provided with right limit plate 4.For fixing limiting plate, to shear down the left and right sides lower external face of box 2 and respectively offer 2 bolt interfaces, bolt interface correspondence is offered stationary conduit 7, and set bolt 6 is connected with the bolt interface.Perk does not take place and produces better effect in box in order to guarantee to shear upward, and roller bearing 5 is provided with more than 2 on the right limit plate 4 being provided with on the left limit plate 3 more than 2.Roller bearing 5 comprises stationary shaft 8 and roller 9; Stationary shaft 8 one ends are fixed on the limiting plate inside surface, and the other end of stationary shaft 8 connects roller 9.
Roller bearing 5 in the present embodiment is provided with 3 on left limit plate 3, be provided with 3 on the right limit plate 4.For limiting plate is moved up and down; Stationary conduit 7 in the present embodiment is a strip; Stationary conduit 7 is vertically offered each 2 in left limit plate 3 and right limit plate 4 bottoms; Shear down box 2 lower external face correspondences and respectively offer 2 bolt interfaces, roller 9 is arranged on to shear and goes up box 1 one sides and shear and go up between corresponding dress appearance mouth 10 sides of box 1 one sides, and concrete is exactly shears and go up in box 1 left side or the right edge corresponding diagram 1 between the circular dress appearance mouth 10 circumference closest approach sides; Roller 9 has one section distance apart from shearing the upper surface of going up box 1; This distance is regulated limiting plate according to actual conditions and is grasped, and it is 0.5～1.5cm apart from the idler wheel bottom distance that the box upper surface is gone up in preferred shearing, and present embodiment adopts 0.8cm.In order to guarantee Deformation control, the limiting plate in the present embodiment is the stainless steel limiting plate, also can use the rigid plate of other materials.Roller 9 is the stainless steel roller, and roller 9 also can be plastics steel roller certainly.
Above-mentioned embodiment is the preferred embodiment of the utility model; Can not limit the utility model; Other any change or other equivalent substitute mode that does not deviate from the technical scheme of the utility model and made is included within the protection domain of the utility model.
Claims (10)
1. a shear box device that is used to measure native residual strength comprises shearing and goes up box and shear box down that box is slidingly connected box with shearing down in the shearing, it is characterized in that: also comprise limiting plate, roller bearing and set bolt; Vertically offer stationary conduit on the limiting plate; Set bolt passes stationary conduit is fixed on the following box of shearing limiting plate; The box top is at limiting plate inside surface horizontally set roller bearing in the shearing; Limiting plate is specially left limit plate and right limit plate, shears down and on the left of the box left limit plate is set, and shearing down, the box right side is provided with the right limit plate.
2. the shear box device that is used to measure native residual strength according to claim 1; It is characterized in that: the left and right sides lower external face of box is respectively offered 2 bolt interfaces under the said shearing; Bolt interface correspondence is offered stationary conduit, and set bolt is connected with the bolt interface.
3. the shear box device that is used to measure native residual strength according to claim 1 is characterized in that: said roller bearing is provided with more than 2 on the right limit plate being provided with on the left limit plate more than 2.
4. the shear box device that is used to measure native residual strength according to claim 3 is characterized in that: said roller bearing is provided with 3 on the left limit plate, is provided with 3 on the right limit plate.
5. the shear box device that is used to measure native residual strength according to claim 1, it is characterized in that: said roller bearing comprises stationary shaft and roller; Stationary shaft one end is fixed on the limiting plate inside surface, and the other end of stationary shaft connects roller.
6. the shear box device that is used to measure native residual strength according to claim 1 is characterized in that: said stationary conduit is a strip.
7. the shear box device that is used to measure native residual strength according to claim 5 is characterized in that: said roller is arranged on to shear and goes up between box side and the shearing dress appearance oral-lateral limit that upward the box side is corresponding.
8. the shear box that is used to measure native residual strength according to claim 1 is characterized in that: said limiting plate is the rigidity limiting plate.
9. the shear box device that is used to measure native residual strength according to claim 5 is characterized in that: said roller is stainless steel roller or plastics steel roller.
10. the shear box device that is used to measure native residual strength according to claim 5 is characterized in that: the box upper surface is 0.5～1.5cm apart from the idler wheel bottom distance in the said shearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205318722U CN202471526U (en) | 2011-12-16 | 2011-12-16 | Shearing box device for detecting soil residual strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205318722U CN202471526U (en) | 2011-12-16 | 2011-12-16 | Shearing box device for detecting soil residual strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202471526U true CN202471526U (en) | 2012-10-03 |
Family
ID=46919678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205318722U Expired - Fee Related CN202471526U (en) | 2011-12-16 | 2011-12-16 | Shearing box device for detecting soil residual strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202471526U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075938A (en) * | 2014-06-25 | 2014-10-01 | 成都东华卓越科技有限公司 | Anti-upwarp device for shear box |
| CN104819903A (en) * | 2015-01-20 | 2015-08-05 | 中山大学 | Soil direct shear rheometer |
| CN105758715A (en) * | 2016-05-21 | 2016-07-13 | 桂林理工大学 | Method for preventing relative tilt of upper shear box and lower shear box in direct shear test |
| CN105784467A (en) * | 2016-05-21 | 2016-07-20 | 桂林理工大学 | Fixing frame for preventing relative inclination of upper and lower shearing boxes in direct shear test |
-
2011
- 2011-12-16 CN CN2011205318722U patent/CN202471526U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075938A (en) * | 2014-06-25 | 2014-10-01 | 成都东华卓越科技有限公司 | Anti-upwarp device for shear box |
| CN104819903A (en) * | 2015-01-20 | 2015-08-05 | 中山大学 | Soil direct shear rheometer |
| CN105758715A (en) * | 2016-05-21 | 2016-07-13 | 桂林理工大学 | Method for preventing relative tilt of upper shear box and lower shear box in direct shear test |
| CN105784467A (en) * | 2016-05-21 | 2016-07-20 | 桂林理工大学 | Fixing frame for preventing relative inclination of upper and lower shearing boxes in direct shear test |
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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 |
Granted publication date: 20121003 Termination date: 20151216 |
|
| EXPY | Termination of patent right or utility model |