CN220251980U - Test device for testing multifrequency resistivity in sand liquefaction process - Google Patents
Test device for testing multifrequency resistivity in sand liquefaction process Download PDFInfo
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- CN220251980U CN220251980U CN202321345336.2U CN202321345336U CN220251980U CN 220251980 U CN220251980 U CN 220251980U CN 202321345336 U CN202321345336 U CN 202321345336U CN 220251980 U CN220251980 U CN 220251980U
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- fixedly connected
- sand
- test device
- resistivity
- liquefaction process
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- 239000004576 sand Substances 0.000 title claims abstract description 57
- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000013016 damping Methods 0.000 claims abstract description 8
- 244000035744 Hura crepitans Species 0.000 claims description 10
- 239000006096 absorbing agent Substances 0.000 claims description 9
- 230000035939 shock Effects 0.000 claims description 9
- 239000002689 soil Substances 0.000 claims description 6
- 238000000151 deposition Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to the technical field of resistivity tests, in particular to a test device for testing multi-frequency resistivity in a sand liquefaction process, which comprises a bottom plate, wherein four groups of fixing frames which are uniformly distributed at equal intervals are fixedly connected to the top of the bottom plate, rotating frames are rotatably connected to the top surfaces of the fixing frames, supporting blocks are rotatably connected to the tops of the rotating frames, and mounting plates are fixedly connected to one ends, far away from the rotating frames, of the supporting blocks. According to the utility model, through the damping structure arranged at the bottom of the sand storage box, vibration generated in the process of resistivity test in the process of liquefaction of sand can be buffered to a certain extent through the damping spring damper at the bottom, and if the vibration amplitude is large, the rotating frame drives the connecting block structure at the moment, so that the vibration amplitude of the sand storage box can be reduced to a certain extent, the detection result is more accurate, and the detection effect is better.
Description
Technical Field
The utility model relates to the technical field of resistivity tests, in particular to a test device for testing multifrequency resistivity in a sand liquefaction process.
Background
The liquefaction of the sand is a phenomenon that after saturated sand is subjected to vibration, pore water pressure is increased, and effective stress in the soil is reduced until the soil disappears, so that sand particles are suspended in the water to form a liquid state. The phenomenon of sand liquefaction is one of the main reasons of geological disasters such as surface cracks of a seismic area, sand discharge of the soil, foundation deformation and the like caused by uneven settlement during earthquake, so that the evaluation of sand liquefaction is a main index of earthquake and disaster prevention;
according to the test device for testing the multifrequency resistivity in the sand liquefaction process of the patent publication CN213481666U, which belongs to the technical field of resistivity testing, a vibrating table is needed in the sand liquefaction process, a pedestal for generating vibration is arranged on the vibrating table, a liquefaction generating tank is fixedly arranged on the pedestal, sand is filled in the liquefaction generating tank, test electrodes are inserted into the sand at intervals, and the test electrodes are electrically connected with a test system; aiming at the problem of a testing device for testing the multi-frequency resistivity, the utility model establishes the correlation between the sand liquefaction parameter and the resistivity parameter, realizes the dynamic sand resistivity test, characterizes the sand liquefaction process by using the dynamic resistivity parameter, has the advantages of rapidness, real time and dynamics, and can know that the sand is required to be placed in the vibrating table during the detection, the sand is required to be paved at the moment, the inside of the placing groove is affected by the work during the detection to cause vibration, and the detection result is inaccurate due to the lack of a damping measure.
In view of this, we propose a test device for multi-frequency resistivity testing in the liquefaction process of sand.
Disclosure of Invention
In order to make up for the defects, the utility model provides a test device for testing multifrequency resistivity in the sand liquefaction process.
The technical scheme of the utility model is as follows:
a test device for testing of multifrequency resistivity in sandy soil liquefaction process, comprising a base plate, four groups of mounts of equidistant evenly distributed of top fixedly connected with of bottom plate, the top surface of mount is all rotated and is connected with the rotating turret, the top of rotating turret is all rotated and is connected with the supporting shoe, the supporting shoe is kept away from the equal fixedly connected with mounting panel of one end of rotating turret, a set of equipment platform of fixedly connected with between the mounting panel, the top fixedly connected with fixed station of equipment platform, the top fixedly connected with of fixed station stores the sand box in a set of.
As the preferable technical scheme, the middle side of the surface of the rotating frame is rotationally connected with a connecting block, the bottom of the connecting block is fixedly connected with a group of tension springs, and the bottom of the tension springs is fixedly connected with the surface of the bottom plate.
As the preferable technical scheme, the bottom of the assembly table is provided with a guide post, and the surface of the guide post is provided with a damping spring damper.
As the technical scheme of preferred, both sides all fixedly connected with connecting plate around the top of sand storage box, the spout has all been seted up to the surface of connecting plate, the equal fixedly connected with guide bar in inside of spout, the equal sliding sleeve in surface of guide bar has overlapped the piece, the equal fixedly connected with vertical stay tube in top of cover piece, the equal fixedly connected with in top of stay tube a set of working plate, both sides are all fixedly connected with fixed cover around the top of working plate, flexible cylinder is all installed to the inside of fixed cover, and the piston rod department fixedly connected with of flexible cylinder is a set of flat sand board.
As the preferable technical scheme, all be equipped with the shock absorber in bottom four corners department of bottom plate, the bottom fixedly connected with of shock absorber is a set of base.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, through the damping structure arranged at the bottom of the sand storage box, vibration generated in the process of resistivity test in the process of liquefaction of sand can be buffered to a certain extent through the damping spring damper at the bottom, and if the vibration amplitude is large, the rotating frame drives the connecting block structure at the moment, so that the vibration amplitude of the sand storage box can be reduced to a certain extent, the detection result is more accurate, and the detection effect is better.
2. According to the sand storage box, due to the flat sand plate structure arranged at the top of the sand storage box, when sand materials are filled into the sand storage box, the flat sand plate is close to the surface of the sand materials by starting the telescopic cylinder in the fixed cover, and gravel is uniformly distributed in the sand storage box by sliding the flat sand plate left and right, so that the sand storage box is convenient to detect and more convenient.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the front face of the present utility model;
FIG. 3 is a schematic view of a cushioning assembly according to the present utility model;
FIG. 4 is a schematic view of the structure of the flask of the present utility model.
In the figure: 1. a bottom plate; 10. a fixing frame; 11. a rotating frame; 110. a connecting block; 111. a tension spring; 2. a support block; 20. a mounting plate; 21. an assembly table; 23. a guide post; 22. damping spring shock absorber; 3. a fixed table; 4. a sand box; 40. a connecting plate; 400. a chute; 41. a guide rod; 5. sleeving blocks; 50. a support tube; 51. a work plate; 52. a fixed cover; 53. a flat sand plate; 60. a shock absorber; 6. and (5) a base.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Several embodiments of the utility model are presented in the figures. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-4, the present utility model provides a technical solution:
a test device for testing of multifrequency resistivity in sandy soil liquefaction process, including bottom plate 1, its characterized in that: four groups of mounts 10 of equidistant evenly distributed of top fixedly connected with of bottom plate 1, the equal rotation in top surface of mount 10 is connected with rotating turret 11, the equal rotation in top of rotating turret 11 is connected with supporting shoe 2, the equal fixedly connected with mounting panel 20 of one end that rotating turret 11 was kept away from to supporting shoe 2, fixedly connected with a set of equipment platform 21 between the mounting panel 20, the top fixedly connected with fixed station 3 of equipment platform 21, the top fixedly connected with of fixed station 3 deposits sand box 4 in a set of, when operating personnel detects, detection device can drive and deposit sand box 4 and vibrate this moment, rotating turret 11 that the bottom was equipped with drives supporting shoe 2 this moment rotates, the pulling force spring 111 that the cooperation was equipped plays certain cushioning effect to deposit sand box 4, avoid it to produce violent vibrations and lead to test result inaccuracy.
It should be added that the middle side of the surface of the rotating frame 11 is rotatably connected with a connecting block 110, the bottom of the connecting block 110 is fixedly connected with a group of tension springs 111, and the bottom of the tension springs 111 is fixedly connected with the surface of the bottom plate 1.
Preferably, in this embodiment, a guide post 23 is provided at the bottom of the assembly table 21, a damper spring damper 22 is provided on the surface of the guide post 23, and vibration generated during detection is damped to a certain extent by the damper spring damper 22.
As the preference of this embodiment, both sides all fixedly connected with connecting plate 40 around the top of deposit sand box 4, spout 400 has all been seted up on the surface of connecting plate 40, the inside of spout 400 is all fixedly connected with guide bar 41, the cover piece 5 has all been cup jointed in the surface of guide bar 41 in the slip, the top of cover piece 5 is all fixedly connected with vertical stay tube 50, the top fixedly connected with of stay tube 50 a set of working plate 51, both sides are all fixedly connected with fixed cover 52 around the top of working plate 51, flexible cylinder is all installed to the inside of fixed cover 52, flexible cylinder's piston rod department fixedly connected with a set of flat sand board 53, operating personnel places sand material in deposit sand box 4's inside, operating personnel is through starting flexible cylinder this moment for it drives flat sand board 53 and is close the sand body surface, personnel make cover piece 5 move about the inside of spout 400 this moment, make inside sand material level, the result when being convenient for detect is more accurate.
As a preferable example of the present embodiment, the shock absorbers 60 are provided at four corners of the bottom of the base plate 1, and a group of bases 6 are fixedly connected to the bottom of the shock absorbers 60.
When the testing device for testing the multi-frequency resistivity in the sand liquefaction process is used, an operator places sand materials in the sand storage box 4, at the moment, the operator drives the sand leveling plate 53 to approach the surface of the sand body by starting the telescopic cylinder, at the moment, the operator moves the sleeve block 5 left and right in the chute 400, the internal sand materials are leveled, the result in the detection process is more accurate, and when the operator detects, the detecting device drives the sand storage box 4 to vibrate, at the moment, the rotating frame 11 arranged at the bottom drives the supporting block 2 to rotate, and the supporting block is matched with the tension spring 111 to play a certain buffering role on the sand storage box 4, so that the inaccuracy of the test result caused by severe vibration is avoided.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. A test device for testing of multifrequency resistivity in sandy soil liquefaction process, including bottom plate (1), its characterized in that: four groups of fixing frames (10) of equidistant evenly distributed of top fixedly connected with of bottom plate (1), the top surface of fixing frame (10) is all rotated and is connected with rotating frame (11), the top of rotating frame (11) is all rotated and is connected with supporting shoe (2), supporting shoe (2) are kept away from the equal fixedly connected with mounting panel (20) of one end of rotating frame (11), a set of equipment platform (21) of fixedly connected with between mounting panel (20), the top fixedly connected with fixed station (3) of equipment platform (21), the top fixedly connected with of fixed station (3) is a set of sand box (4) of depositing.
2. The test device for multi-frequency resistivity testing in a sand liquefaction process according to claim 1, wherein: the middle side of the surface of the rotating frame (11) is rotationally connected with a connecting block (110), the bottom of the connecting block (110) is fixedly connected with a group of tension springs (111), and the bottom of the tension springs (111) is fixedly connected with the surface of the bottom plate (1).
3. The test device for multi-frequency resistivity testing in a sand liquefaction process according to claim 1, wherein: the bottom of the assembly table (21) is provided with a guide column (23), and the surface of the guide column (23) is provided with a damping spring shock absorber (22).
4. The test device for multi-frequency resistivity testing in a sand liquefaction process according to claim 1, wherein: the sand box is characterized in that connecting plates (40) are fixedly connected to the front side and the rear side of the top of the sand box (4), sliding grooves (400) are formed in the surfaces of the connecting plates (40), guide rods (41) are fixedly connected to the inner portions of the sliding grooves (400), sleeve blocks (5) are sleeved on the surfaces of the guide rods (41) in a sliding mode, vertical supporting tubes (50) are fixedly connected to the tops of the sleeve blocks (5), a group of working plates (51) are fixedly connected to the tops of the supporting tubes (50), fixing covers (52) are fixedly connected to the front side and the rear side of the tops of the working plates (51), telescopic cylinders are arranged in the fixing covers (52), and a group of flat sand plates (53) are fixedly connected to the piston rod of each telescopic cylinder.
5. The test device for multi-frequency resistivity testing in a sand liquefaction process according to claim 1, wherein: the shock absorber (60) is arranged at four corners of the bottom plate (1), and a group of bases (6) are fixedly connected to the bottom of the shock absorber (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321345336.2U CN220251980U (en) | 2023-05-30 | 2023-05-30 | Test device for testing multifrequency resistivity in sand liquefaction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321345336.2U CN220251980U (en) | 2023-05-30 | 2023-05-30 | Test device for testing multifrequency resistivity in sand liquefaction process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220251980U true CN220251980U (en) | 2023-12-26 |
Family
ID=89265201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321345336.2U Active CN220251980U (en) | 2023-05-30 | 2023-05-30 | Test device for testing multifrequency resistivity in sand liquefaction process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220251980U (en) |
-
2023
- 2023-05-30 CN CN202321345336.2U patent/CN220251980U/en active Active
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