CN207866612U - A kind of double box original position direct shear apparatus of the soil body - Google Patents
A kind of double box original position direct shear apparatus of the soil body Download PDFInfo
- Publication number
- CN207866612U CN207866612U CN201720507350.6U CN201720507350U CN207866612U CN 207866612 U CN207866612 U CN 207866612U CN 201720507350 U CN201720507350 U CN 201720507350U CN 207866612 U CN207866612 U CN 207866612U
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- box
- shear
- shearing
- soil body
- original position
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Abstract
The utility model provides a kind of double box original position direct shear apparatus of the soil body, including the shear box on under(-)chassis and under(-)chassis, shear box includes box under box and shear box on shear box, and the present apparatus further includes pressure plate, roller bearing row, cover clamp, a column, transverse hydraulic power plant and vertical hydraulic power unit, horizontal reacting force axis etc..The double box original position direct shear apparatus of the soil body of the utility model can overcome the bad control of traditional direct shear apparatus shear surface in situ, sample to be contacted with shear box, and not close, practical operation is cumbersome, easy tos produce the defects of large error；It is simple and reasonable for structure simultaneously, it is easy to operate, it is ensured that the process of deformation and failure of certainty and observable the sample shearing of shear surface can be taken and apply the modes such as back-pressure, pressing Ioad and anchoring pressurization, be suitable for various complex sites.
Description
Technical field
The utility model belongs to Geotechnical Engineering field, and in particular to a kind of double box original position direct shear apparatus of the soil body.
Background technology
In the evaluation of foundation bearing capacity, soil-slope and subgrade stability, the Shear Strength Index of Rock And Soil is most important
Mechanics parameter.The more universal determination method of test Rock And Soil shearing strength have indoor direct shear test (cut soon, consolidated quick shear,
Slow shear and draining are cut repeatedly), indoor triaxial shear test and in-situ direct shear test.Live in-situ direct shear test is because of its experimental condition
It is practical closer to Rock And Soil, in a variety of industries such as railway, highway, water conservancy, mine, building, increasingly paid attention to by engineering circles,
Lot of domestic and foreign engineering design, construction using in-situ direct shear test as measurement soil strength main means it
One.
But the direct shear apparatus in situ of the prior art often mechanism it is simple, from great, can not determine shear surface position, test process
Soil deformation destruction can not be observed intuitively, this all affects the accuracy of the type equipment test result.Simultaneously as normal pressure
Applying mode it is relatively simple, also limit the application range of direct shear apparatus.
Invention content
In view of the above-mentioned deficiencies in the prior art, the purpose of this utility model is to provide a kind of double boxes of soil body are in situ
Direct shear apparatus, the present apparatus can not only control shear surface, and can observe the gap of shear box and sample and the sample of shear history
Internal modification destroys situation.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution is achieved：
A kind of double box original position direct shear apparatus of the soil body, including quadrangular base frame and shear box, the shear box include shearing
Lower box and shearing upper box are fixed with the lower box of shearing among the under(-)chassis, shear and be equipped with the upper box of shearing on lower box；
Respectively one column of installation, the top of column are equipped with a horizontal pressurization to the under(-)chassis jointly on two bottom edges up and down
Plate, a vertical hydraulic power unit is connected under pressure plate, and vertical hydraulic power unit is located above the upper box of shearing；
Support plate is provided in the shearing on box, the first slot rolling is machined in support plate, rolling is provided in the first slot rolling
Axis is arranged, and is placed with horizontal lid pressing plate on roller bearing row, lid pressing plate is fixed with the vertical hydraulic power unit；
Box side is equipped with a horizontal reacting force axis under the shearing, and the under(-)chassis is fixed in horizontal reacting force axis one end,
The other end is in contact with box under the shear box, and box side is equipped with a transverse hydraulic power plant, the transverse direction liquid in shearing
It presses power apparatus and is located at shear box both sides with horizontal reacting force axis.
Box is provided with a load transfer device with transverse hydraulic power plant contact position in the shearing, and the load transfer device is band
The cushion block of arc-shaped concave.
The pressure plate can be used bolt fixation sleeper mode and lengthen.
In the shearing a pair of of displacement sensor is provided between box and the lower box of shearing.
The vertical hydraulic power unit and transverse hydraulic power plant are connected with pressure sensor respectively.
The second slot rolling is provided under the shear box at the top of box, cassette bottom portion is provided with and described second on the shear box
The ball of slot rolling cooperation.
The shear box uses high-strength transparence organic glass, and shear box jacket hoop rigidity outrigger.
Box realizes longitudinally fixed that fixing axle is connect with under(-)chassis by fixing axle under the shear box.
The utility model compared with prior art, has the following technical effect that：
(1) the double box original position direct shear apparatus of the soil body of the utility model can overcome the bad control of traditional direct shear apparatus shear surface in situ,
Sample contacts that not close, practical operation is cumbersome, easy tos produce the defects of large error with shear box；
(2) the utility model is simple and reasonable for structure, easy to operate, it is ensured that the certainty and observable sample of shear surface
The process of deformation and failure of shearing can be taken and apply the modes such as back-pressure, pressing Ioad and anchoring pressurization, be suitable for various complicated fields
Ground.
Description of the drawings
Fig. 1 is the front view of the double box original position direct shear apparatus of the utility model soil body；
Fig. 2 is the left view of the double box original position direct shear apparatus of the utility model soil body；
Fig. 3 is the vertical view of the double box original position direct shear apparatus of the utility model soil body.
The meaning of each label is in figure：
1- under(-)chassis, 2- shear boxs, the lower box of 3- shearings, box in 4- shearings, 5- columns, 6- pressure plates, the vertical hydraulic pressure of 7-
Power plant, 8- support plates, the first slot rollings of 9-, 10- roller bearings row, 11- lid pressing plates, 12- horizontal reacting force axis, 13- transverse hydraulics are dynamic
Power apparatus, 14- load transfer devices, 15- displacement sensors, 16- pressure sensors, the second slot rollings of 17-, 18- balls, 19- fixing axles.
Explanation is further explained in detail to the particular content of the utility model below in conjunction with attached drawing.
Specific implementation mode
Specific embodiment of the utility model is given below, it should be noted that the utility model is not limited to following tool
Body embodiment, all equivalent transformations made on the basis of the technical solutions of the present application each fall within the scope of protection of the utility model.
Embodiment 1：
The present embodiment transverse hydraulic power plant 13 uses transverse hydraulic oil cylinder, and vertical hydraulic power unit 7 is using vertical
Hydraulic cylinder.
In compliance with the above technical solution, as shown in Figure 1 to Figure 3, the present embodiment provides a kind of double box original position direct shear apparatus of the soil body, packet
Quadrangular base frame 1 and shear box 2 are included, shear box includes the lower box 3 of shearing and the upper box 4 of shearing, is fixed among under(-)chassis 1
The lower box 3 of shearing is sheared to be equipped on lower box 3 and shears upper box 4；For containing the sample soil body.
Respectively one column 5 of installation, the top of column 5 are equipped with a horizontal pressure plate jointly on under(-)chassis about 1 two bottom edge
6, a vertical hydraulic power unit 7 is connected under pressure plate 6, vertical hydraulic power unit 7 is located at upper 4 top of box of shearing, is used for
Apply vertical power to shear box 2；
Support plate 8 is provided in shearing on box 4, the first slot rolling 9 is machined in support plate 8, rolling is provided in the first slot rolling 9
Axis row 10, roller bearing are arranged and are placed with horizontal lid pressing plate 11 on 10, and lid pressing plate 11 is fixed with vertical hydraulic power unit 7；First rolling
Slot 9 and the design of roller bearing row 10 are to reduce the friction of 4 motion process of box on shear box so that testing result is more accurate.
Lower 3 side of box of shearing is equipped with a horizontal reacting force axis 12, and under(-)chassis 1 is fixed in 12 one end of horizontal reacting force axis, separately
One end is in contact with box under shear box 3, and 4 side of box is equipped with a transverse hydraulic power plant 13, transverse hydraulic power in shearing
Device 13 is located at 2 both sides of shear box with horizontal reacting force axis 12.Box 4 is set with 13 contact position of transverse hydraulic power plant in shearing
It is equipped with a load transfer device 14, load transfer device 14 is the cushion block with arc-shaped concave, horizontal reacting force axis 12 and transverse hydraulic power dress
Setting 13, box 4 applies horizontal thrust on shear box by load transfer device 14.The oil pipe of vertical hydraulic cylinder and horizontal hydraulic pressure oil cylinder
Interface is respectively set with precision pressure sensor 16 to be connected, displacement sensor 15 be fixed on the upper box 4 of shearing and box 3 under shear box it
Between, it is placed in 13 both sides of transverse hydraulic power plant respectively.Pressure plate 6 needs that bolt fixation sleeper can be used depending on working condition
Mode is lengthened.
The top of box 3 is provided with the second slot rolling 17 under shear box, and 4 bottom of box is provided with and the cooperation of the second slot rolling on shear box
Ball 18.Moving direction of the box 4 relative to box under shear box 3 on shear box is not only limited, and can be substantially reduced on shear box
Friction under box 4 and shear box between box 3.
Shear box 2 uses high-strength transparence organic glass, the soil body sample volume in shear box 2 of can observing at any time destroy and by
Power situation, 2 jacket hoop rigidity outrigger of shear box, the stabilization of holding structure.
Box 3 realizes longitudinally fixed that fixing axle 19 is connect with under(-)chassis 1 by the fixing axle 19 of lower part under shear box.
By said program, under(-)chassis 1, column 5, pressure plate 6 form frame structure, are born by simple frame structure
The internal force of direct shear apparatus at work；Sample in shear box is applied respectively by vertical hydraulic cylinder and transverse hydraulic oil cylinder simultaneously
Vertical pressure and horizontal shear force.
The device of the utility model is constructed and test procedure is as follows：
1. sample is prepared, the representational target location in selection scene, which is excavated, tests pits, opening of testing pits according to soil body situation and
Double 1 sizes of box original position direct shear apparatus under(-)chassis of the soil body determine, find target shear surface, and ensure 1.5 meters of distance between each sample
Left and right distance, first coarse-blank processed, then carry out essence and cut.
2. mechanics device is installed
1. installing under(-)chassis 1 and shear box 2：Under(-)chassis 1 is offseted and is laid flat with sample soil at both sides, by shear box
Lower box 3 is installed on sample, is bolted in shear box fixing axle 19, by horizontal reacting force axis 12 and 3 phase of box under shear box
It supports, then box on shear box 4 is installed on sample.
2. installing vertical pressure system：Support plate 8 and roller bearing row 10, then top are horizontally arranged after soil sample upper surface is scabbled
Lid pressing plate 11 is placed, then vertical hydraulic cylinder and lid pressing plate 11 and pressure plate 6 are fixed with bolt, measures 10 friction system of roller bearing row
Number.
3. installing horizontal pressure force system：First horizontal hydraulic cylinder and under(-)chassis 1 are fixed with bolt, then adjust hydraulic cylinder to make
Other end is contacted with the load transfer device 14 on box on shear box 4, keeps horizontal and fixed.
3. counterforce device or earth anchor installation, select reasonable pressuring method, when earth anchor being taken to pressurize according to place actual conditions
Four earth anchor installation sites are determined in sample both sides, ensure that sample both sides earth anchor line is consistent with shear direction；Take back pressure type
Or preloading formula adjusts vertical hydraulic cylinder and offsets with horizontal hole ceiling or preloading beam bottom portion when being further applied load, and keeps vertical, removes
Two heel posts 5 according to the sleeper that chamber soil body situation can use bolt regular length larger on pressure plate 6, and keep pressure plate 6
Between two parties.
4. the leveling of mechanics device, with level measurement, to under(-)chassis 1 and horizontal hydraulic pressure oil cylinder and horizontal reacting force axis
12 carry out leveling.
5. installing measuring system, displacement sensor 15 distinguishes rack-mounted portion two in the sample by Magnetic rack along shear direction
Side records the shear displacemant of sample；By two precision pressure sensors 16 by threeway respectively with vertical hydraulic cylinder and level
The oil pipe of hydraulic cylinder is connected.
6. load
1. applying vertical load：Maximum vertical pressure is determined according to experimental program, and point 5 grades of application vertical loads wait for every grade
Apply shear load again after vertical load and sample deformation are basicly stable.
2. applying shear load：Shearing thrust divides 8 grades of applications by arithmetic progression.Application process horizontal thrust need to the company of holding
It is continuous, uniform, next stage load can be applied when deformation tends towards stability, until sample is sheared destruction.
7. off-test observes and records the soil body and shearing surface state, draws shear surface defect, fluctuating situation.
Claims (9)
1. a kind of double box original position direct shear apparatus of soil body, which is characterized in that described including quadrangular base frame (1) and shear box (2)
Shear box includes the lower box (3) of shearing and the upper box (4) of shearing, and the lower box (3) of shearing, shearing are fixed among the under(-)chassis (1)
The upper box (4) of shearing is installed on lower box (3)；
Respectively one column of installation (5), the top of column (5) are equipped with a level to the under(-)chassis (1) jointly on two bottom edges up and down
Pressure plate (6), a vertical hydraulic power unit (7) is connected under pressure plate (6), and vertical hydraulic power unit (7) is located at shearing
Above upper box (4)；
Support plate (8) is provided in the shearing on box (4), the first slot rolling (9), the first slot rolling (9) are machined in support plate (8)
It is inside provided with roller bearing row (10), horizontal lid pressing plate (11), lid pressing plate (11) and the vertical liquid are placed on roller bearing row (10)
It is fixed to press power apparatus (7)；
Box (3) side is equipped with a horizontal reacting force axis (12) under the shearing, and the bottom is fixed in horizontal reacting force axis (12) one end
Portion's frame (1), the other end are in contact with box (3) under the shear box, and box (4) side is equipped with a transverse hydraulic power in shearing
Device (13), the transverse hydraulic power plant (13) are located at shear box (2) both sides with horizontal reacting force axis (12).
2. the double box original position direct shear apparatus of the soil body as described in claim 1, which is characterized in that box (4) and transverse hydraulic in the shearing
Power plant (13) contact position is provided with a load transfer device (14), and the load transfer device (14) is the cushion block with arc-shaped concave.
3. the double box original position direct shear apparatus of the soil body as described in claim 1, which is characterized in that it is solid that bolt can be used in the pressure plate (6)
Determine sleeper mode to lengthen.
4. the double box original position direct shear apparatus of the soil body as described in claim 1, which is characterized in that box (4) and the lower box of shearing in the shearing
(3) a pair of of displacement sensor (15) is provided between.
5. the double box original position direct shear apparatus of the soil body as described in claim 1, which is characterized in that the vertical hydraulic power unit (7) and
Transverse hydraulic power plant (13) is connected with pressure sensor (16) respectively.
6. the double box original position direct shear apparatus of the soil body as described in claim 1, which is characterized in that transverse hydraulic power plant (13) packet
Transverse hydraulic oil cylinder is included, the vertical hydraulic power unit (7) includes vertical hydraulic cylinder.
7. the double box original position direct shear apparatus of the soil body as described in claim 1, which is characterized in that set at the top of box (3) under the shear box
It is equipped with the second slot rolling (17), box (4) bottom is provided with the ball (18) coordinated with second slot rolling on the shear box.
8. the double box original position direct shear apparatus of the soil body as described in claim 1, which is characterized in that the shear box (2) is saturating using high intensity
Bright organic glass, shear box (2) jacket hoop rigidity outrigger.
9. the double box original position direct shear apparatus of the soil body as described in claim 1, which is characterized in that box (3) passes through lower part under the shear box
Fixing axle (19) realize it is longitudinally fixed, fixing axle (19) is connect with under(-)chassis (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720507350.6U CN207866612U (en) | 2017-05-09 | 2017-05-09 | A kind of double box original position direct shear apparatus of the soil body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720507350.6U CN207866612U (en) | 2017-05-09 | 2017-05-09 | A kind of double box original position direct shear apparatus of the soil body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207866612U true CN207866612U (en) | 2018-09-14 |
Family
ID=63473893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720507350.6U Expired - Fee Related CN207866612U (en) | 2017-05-09 | 2017-05-09 | A kind of double box original position direct shear apparatus of the soil body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207866612U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406301A (en) * | 2018-12-20 | 2019-03-01 | 新疆维吾尔自治区交通规划勘察设计研究院 | Combined indoor consolidates boxshear apparatus |
| CN109580386A (en) * | 2018-12-05 | 2019-04-05 | 陕西理工大学 | A kind of two dimension shearing instrument |
| CN110174319A (en) * | 2019-06-28 | 2019-08-27 | 广西科技大学 | A kind of pseudo static testing device of circulation shear |
| CN110726626A (en) * | 2019-11-26 | 2020-01-24 | 西南交通大学 | Interlaminar shear fatigue test device and method for testing interlaminar shear fatigue |
| CN111781046A (en) * | 2020-08-11 | 2020-10-16 | 辽宁科技大学 | Complete test device and test method for detecting mechanical properties of tamping briquette |
| CN111948031A (en) * | 2020-09-24 | 2020-11-17 | 吉林大学 | Soil body direct shear test device considering water heating power salt coupling effect |
| CN112345384A (en) * | 2020-10-14 | 2021-02-09 | 华南理工大学 | Frozen soil gravity shear test sliding plate, device and test method thereof |
| CN112412446A (en) * | 2020-11-20 | 2021-02-26 | 王兆举 | Portable drilling device for geotechnical engineering investigation |
| CN112858044A (en) * | 2021-03-15 | 2021-05-28 | 中南大学 | Test device and test method for shear seepage test |
| CN113624591A (en) * | 2021-09-06 | 2021-11-09 | 贵州省水利水电勘测设计研究院有限公司 | Direct shear tester |
| CN115575259A (en) * | 2022-12-09 | 2023-01-06 | 北京建筑大学 | Frozen soil shear test system and test method |
| CN109406301B (en) * | 2018-12-20 | 2024-04-26 | 新疆维吾尔自治区交通规划勘察设计研究院 | Combined indoor consolidation shearing instrument |
-
2017
- 2017-05-09 CN CN201720507350.6U patent/CN207866612U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580386A (en) * | 2018-12-05 | 2019-04-05 | 陕西理工大学 | A kind of two dimension shearing instrument |
| CN109406301A (en) * | 2018-12-20 | 2019-03-01 | 新疆维吾尔自治区交通规划勘察设计研究院 | Combined indoor consolidates boxshear apparatus |
| CN109406301B (en) * | 2018-12-20 | 2024-04-26 | 新疆维吾尔自治区交通规划勘察设计研究院 | Combined indoor consolidation shearing instrument |
| CN110174319A (en) * | 2019-06-28 | 2019-08-27 | 广西科技大学 | A kind of pseudo static testing device of circulation shear |
| CN110726626A (en) * | 2019-11-26 | 2020-01-24 | 西南交通大学 | Interlaminar shear fatigue test device and method for testing interlaminar shear fatigue |
| CN111781046B (en) * | 2020-08-11 | 2023-03-07 | 辽宁科技大学 | Complete test device and test method for mechanical property detection of tamping briquette |
| CN111781046A (en) * | 2020-08-11 | 2020-10-16 | 辽宁科技大学 | Complete test device and test method for detecting mechanical properties of tamping briquette |
| CN111948031A (en) * | 2020-09-24 | 2020-11-17 | 吉林大学 | Soil body direct shear test device considering water heating power salt coupling effect |
| CN112345384A (en) * | 2020-10-14 | 2021-02-09 | 华南理工大学 | Frozen soil gravity shear test sliding plate, device and test method thereof |
| CN112412446A (en) * | 2020-11-20 | 2021-02-26 | 王兆举 | Portable drilling device for geotechnical engineering investigation |
| CN112858044B (en) * | 2021-03-15 | 2022-02-15 | 中南大学 | Test device and test method for shear seepage test |
| CN112858044A (en) * | 2021-03-15 | 2021-05-28 | 中南大学 | Test device and test method for shear seepage test |
| CN113624591A (en) * | 2021-09-06 | 2021-11-09 | 贵州省水利水电勘测设计研究院有限公司 | Direct shear tester |
| CN115575259A (en) * | 2022-12-09 | 2023-01-06 | 北京建筑大学 | Frozen soil shear test system and test method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| 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: 20180914 Termination date: 20200509 |