CN112098190A - Geotechnique's check room multiaxis two-way creep performance testing arrangement - Google Patents
Geotechnique's check room multiaxis two-way creep performance testing arrangement Download PDFInfo
- Publication number
- CN112098190A CN112098190A CN202010969021.XA CN202010969021A CN112098190A CN 112098190 A CN112098190 A CN 112098190A CN 202010969021 A CN202010969021 A CN 202010969021A CN 112098190 A CN112098190 A CN 112098190A
- Authority
- CN
- China
- Prior art keywords
- geocell
- creep
- control unit
- reachs
- displacement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
Abstract
The invention discloses a multi-axis bidirectional creep performance testing device for geocells, which comprises a testing steel frame, a bearing mechanism, a displacement acquisition unit and a control unit, wherein the testing steel frame comprises a bottom plate and a stand column, the bearing mechanism comprises a supporting guide rail, a flexible steel cable, a weight and a geocell fixing clamp, the top surface of a fixed shaft is arranged at two ends of the supporting guide rail, a convex edge is arranged on the top surface of the fixed shaft, the supporting guide rail is fixed on the testing steel frame through the fixed shaft, a plurality of groups of pulley boxes are arranged on a supporting track, the top of each pulley box is provided with a groove, a pulley is arranged in the groove, the flexible steel cable is wound on the pulley, two ends of the flexible steel cable are respectively connected with the weight and the geocell fixing clamp, the geocell fixing clamp is additionally arranged at a welding end and a complete sheet end at the periphery of a, the device can ensure that the precision and the reliability of the acquired experimental data are higher for testing the overall creep property of the geocell to be tested.
Description
Technical Field
The invention belongs to the field of engineering equipment, and particularly relates to a multi-axis bidirectional creep performance testing device for a geocell.
Background
The geocell is a net-shaped cell structure formed by welding stretched high-strength polymer sheets, is used as a novel reinforcement mode for uneven settlement of a high-fill weak soil subgrade, and is widely applied to the engineering fields of highways, railways, water conservancy, military affairs and the like. Tensile strength is an important index of the geocell, but the creep characteristic is also an important index of the geosynthetic material when the geosynthetic material is buried in a soil body for a long time, and the long-term stable operation of an engineering reinforced body is influenced by the change of mechanical properties.
The geocell sheet produced in China at present has high strength, but has large plastic deformation capacity due to the sheet material property, so the research on the creep performance index of the geocell is particularly important, the geocell embedded in a foundation generates large deformation, the foundation structure can be unstably slid and collapsed, but the existing geocell creep performance testing device and method are not many, and the following problems generally exist: (1) the traditional test device and method for testing the creep property of the geocell only measure the creep property of the geocell sheet and cannot meet the test requirement on the overall creep property of the geocell; (2) the geocell is taken as a combined whole, the stress of the geocell in the drawing test process in soil is complex, the displacement of each node of the geocell and the deformation stress principle of a sheet need to be independently and clearly analyzed, the traditional uniaxial tensile test cannot truly simulate the true stress state of the geocell in the soil body, and further the test result is greatly different from the true stress of the geocell in the actual engineering.
The invention patent with the existing patent number of CN201710639007.1 provides a test device for testing the creep property of a geosynthetic material, and the test device for testing the creep property of the geosynthetic material realizes the real simulation of the creep condition of the geosynthetic material under the restriction of soil, but still has the following defects: the clamping plate type clamp for clamping the geosynthetic material is used for clamping the geocell and can drop and slide due to vertical deformation of the cell sheet, in addition, the testing device is uniaxial tensile testing equipment, the geocell has obvious anisotropy due to structural characteristics, and the uniaxial drawing can generate larger difference due to the stress direction of the geocell. Therefore, it is urgently needed to develop a testing device for creep property of geosynthetic material specially aiming at geocells, which is used for carrying out a test of the overall creep property of the geocells.
Disclosure of Invention
In order to solve the problems, the multi-shaft bidirectional creep performance testing device for the geocell provided by the application can be used for testing the multi-shaft bidirectional tensile creep performance of the geocell, testing the multi-point long-term creep performance of the geocell, recording the deformation characteristics and the tension change of the geocell at different stages in real time, and providing scientific and effective test data for the long-term durability test research of the geocell.
The invention provides a multi-axis bidirectional creep performance testing device for a geocell, which comprises a test steel frame (1), a bearing mechanism (2), a displacement acquisition unit and a control unit (3), wherein the bearing mechanism (2), the displacement acquisition unit and the control unit (3) are all arranged on the test steel frame (1); the test steel frame (1) is of a cubic frame structure, and the cubic frame structure comprises a bottom plate (12) arranged at the bottom and at least three upright posts (11) welded on the bottom plate (12); the bearing mechanism (2) comprises a support guide rail (21), a flexible steel cable (23), weights (24) and a geocell fixing clamp (25), the support guide rail (21) is a cuboid steel block with fixing shafts (212) arranged at two ends and convex ribs (211) arranged on the top surface, the support guide rail (21) is fixed on two adjacent upright posts (11) of the test steel frame (1) through the fixing shafts (212), a plurality of groups of pulley boxes (22) are arranged on the support rail, the top of each pulley box (22) is provided with a groove (221), a pulley (222) is arranged in each groove (221) through a rotating shaft, meanwhile, the bottom of each pulley box (22) is provided with a groove (223) matched with the convex ribs (211) on the top surface of the support guide rail (21), and the pulley boxes (22) can smoothly move on the support guide rail (21) by means of meshing of the grooves (223) and the convex ribs (211), the flexible steel cable (23) is wound on the pulley (222), one end of the flexible steel cable (23) is connected with the weight (24) and naturally droops, the other end of the flexible steel cable is rigidly connected with the geocell fixing clamp (25), the geocell fixing clamp (25) can be additionally arranged at the welding end (52) and the complete sheet end (51) on the periphery of the geocell (5) to be detected, and the geocell (5) to be detected is fixed on the horizontal plane; the displacement acquisition unit comprises a stay wire type displacement meter (41) and a laser displacement meter (42), the laser displacement meter (42) is arranged on the side face of the pulley box (22), the laser displacement meter (42) can record the horizontal displacement of the pulley box (22) relative to the initial moment at any moment in the creep process, a wire box of the stay wire type displacement meter (41) is fixed to the top of the pulley box (22), the tail end of a stay wire (411) is fixed on a geocell fixing clamp (25), and the stay wire type displacement meter (41) can monitor the deformation of the geocell (5) to be detected in the tension direction in real time in the creep process; an integrated circuit is arranged in the control unit (3), and the control unit (3) is electrically connected with the displacement acquisition unit.
As a preferable scheme of the application, the geocell fixing clamp (25) comprises a sleeve rod type clamp (251) and a clamping type clamp (252), the sleeve rod type clamp (251) is composed of a sleeve rod fixing end (2511) and a sleeve rod (2512), the clamping type clamp (252) is composed of a clamping plate (2521) and a locking assembly (2522), the distance between the clamping plates (2521) can be adjusted by adjusting the tightness of the locking assembly (2522), the sleeve rod type clamp (251) is used for clamping a complete sheet end (51) on the periphery of the geocell (5) to be tested, and the clamping type clamp (252) is used for clamping a welding end head (52) on the periphery of the geocell (5) to be tested.
As a preferable scheme of the application, balls are arranged in the grooves (223) arranged at the bottom of the pulley box (22), and the balls can be used for reducing the friction force between the grooves (223) and the convex ribs (211).
As a preferable scheme of the application, the weight (24) is a standard mass block with a hook at the top, and the weight (24) comprises a plurality of different masses or models; and/or the flexible steel cable (23), the weights (24) and the geocell fixing clamp (25) form an integral structure, the length of the integral structure is not changed along with the tensile force, the types or the quality of the weights (24) are selected according to actual requirements, the weights (24) with different qualities or types provide different tensile forces, and the tensile force is guaranteed to be constant in each test.
According to the preferable scheme of the application, the control unit (3) obtains the displacement of different nodes on the periphery of the geocell in the stretching direction through the displacement change collected by the stay wire type displacement meter (41), further obtains the creep amount U1 of the sheets at different positions, then the control unit (3) collects the horizontal displacement amount of the pulley box (22) at different moments through the laser displacement meter (42), further obtains the creep amount U2 of the sheets at different positions, and the control unit (3) transmits the obtained creep amounts U1 and U2 to a far-end upper computer to further calculate the integral creep amount U of the geocell.
Compared with the prior art, this geotechnique's check room multiaxis two-way creep performance testing arrangement's advantage in this application lies in:
(1) the structure is simple, and the operation is convenient;
(2) adopt the two-way atress creep test of multiaxis, each peripheral node of geotechnological check room 5 that awaits measuring all is as creep test node, also all sets up the creep test point along geotechnological check room owner direction of stress and non-main direction of stress, so can acquire the holistic creep scope of geotechnological check room 5 that awaits measuring, and then makes the test result more reliable and accurate.
(3) The control unit 3 can timely collect real-time data of the stay wire type displacement meter 41 and the laser displacement meter 42, so that intelligent collection of experimental data can be realized, and creep performance and change rules of the geocell can be quantitatively researched.
Drawings
Fig. 1 is a schematic perspective structure view of a geocell multi-axis bi-directional creep performance testing device according to an embodiment of the invention.
Fig. 2 is a schematic front view structural diagram of a geocell multi-axis bi-directional creep performance testing device according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram along the direction a-a in fig. 2 according to an embodiment of the present invention.
Fig. 4 is a schematic front view of a support rail according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of fig. 4 along the direction B-B according to an embodiment of the present invention.
Fig. 6 is a schematic front view of a pulley box according to an embodiment of the present invention.
Fig. 7 is a schematic side view of a pulley box according to an embodiment of the present invention.
Fig. 8 is a schematic front view of a loop bar type clamp according to an embodiment of the present invention.
Fig. 9 is a schematic front view of a clamping fixture according to an embodiment of the present invention.
Fig. 10 is a schematic side view of a clamping fixture according to an embodiment of the present invention.
Fig. 11 is a schematic view of creep points on a geocell to be tested according to an embodiment of the present invention.
Fig. 12 is a schematic control structure diagram of a control unit according to an embodiment of the present invention.
Reference numerals
The device comprises a test steel frame 1, a stand column 11, a bottom plate 12, a bearing mechanism 2, a support guide rail 21, a rib 211, a fixed shaft 212, a pulley box 22, a slot 221, a pulley 222, a groove 223, a flexible steel cable 23, a weight 24, a geocell fixing clamp 25, a loop bar type clamp 251, a loop bar fixed end 2511, a loop bar 2512, a clamping type clamp 252, a clamping plate 2521, a locking assembly 2522, a control unit 3, a stay wire type displacement meter 41, a stay wire 411, a laser displacement meter 42, a geocell 5 to be tested, a complete sheet end 51 and a welding end 52.
Detailed Description
The embodiment provides a multi-axis bidirectional creep performance testing device for a geocell, and referring to fig. 1-3, the testing device comprises a test steel frame 1, a bearing mechanism 2, a displacement acquisition unit and a control unit 3, wherein the bearing mechanism 2, the displacement acquisition unit and the control unit 3 are all arranged on the test steel frame 1; in this embodiment, the test steel frame 1 is a cubic frame structure, the cubic frame structure includes a bottom plate 12 disposed at the bottom and at least three upright posts 11 welded on the bottom plate 12, and four upright posts 11 are preferably disposed in this embodiment; the bearing mechanism 2 comprises a support guide rail 21, a flexible steel cable 23, a weight 24 and a geocell fixing clamp 25, wherein the support guide rail 21 is a cuboid steel block with fixing shafts 212 arranged at two ends and ribs 211 arranged on the top surface, see fig. 4-5, the support guide rail 21 is fixed on two adjacent columns 11 of the test steel frame 1 through the fixing shafts 212, a plurality of groups of pulley boxes 22 with square structures are arranged on the support guide rail 21, preferably, three groups of pulley boxes 22 are arranged on each support rail 21, see fig. 6-7, a slot 221 is arranged at the top of each pulley box 22, a pulley 222 is arranged in each slot 221 through a rotating shaft, meanwhile, a groove 223 matched with the ribs 211 on the top surface of the support guide rail 21 is formed in the bottom of each pulley box 22, the pulley boxes 22 can smoothly move on the support guide rail 21 by meshing of the groove 223 and the ribs 211, the weight 24 is placed on the bottom plate 12, the flexible steel cable 23 is wound on the pulleys 222 And the other end is rigidly connected to the geocell fixing clamp 25, the geocell fixing clamp 25 can be clamped at the welding end 52 and the complete sheet end 51 at the periphery of the geocell 5 to be tested and fix the geocell 5 to be tested on the horizontal plane, in this embodiment, the geocell fixing clamp 25 comprises a loop bar clamp 251 and a clamping clamp 252, the loop bar clamp 251 is composed of a loop bar fixing end 2511 and a loop bar 2512, referring to fig. 8, the clamping clamp 252 is composed of two clamp plates 2521 and a locking assembly 2522, referring to fig. 9-10, the distance between the two clamp plates 2521 can be adjusted by adjusting the tightness of the locking assembly 2522, the loop bar clamp 251 is used for clamping the complete sheet end 51 at the periphery of the geocell 5 to be tested, the clamping clamp 252 is used for clamping the welding end 52 at the periphery of the geocell 5 to be tested, that is, in this embodiment, according to the anisotropy of the geocell creep performance, all peripheral nodes of the geocell 5 to be tested are used as stretching nodes, so that creep test points are arranged in the main stress direction and the non-main stress direction of the geocell 5 to be tested, the non-directivity of soil pressure at a certain point of a cell layer in a foundation is considered, meanwhile, different stretching nodes or creep test points are fixed by different clamps, therefore, not only can multi-axis double-stress creep test be realized, but also the positions of different clamps can be properly adjusted during actual use to ensure that the stress of the geocell 5 to be tested is uniform, and referring to fig. 11, a position schematic diagram of each point to be tested or creep point of the geocell 5 to be tested is provided for the embodiment; the displacement acquisition unit comprises a stay wire type displacement meter 41 and a laser displacement meter 42, the laser displacement meter 42 is arranged on the side surface of the pulley box 22, the laser displacement gauge 42 can record the displacement of the plurality of sheave boxes 22, which are located on the corresponding support rail 21 during creep, at any time relative to the initial time, which, in this embodiment, preferably, the laser displacement meters 42 on the pulley boxes 22 at the two sides are used for acquiring the horizontal displacement of the corresponding pulley box 22 relative to the upright 11 during the creep process, the laser displacement meter 42 on the pulley box 22 at the middle is used for acquiring the horizontal displacement of the corresponding pulley box 22 relative to the adjacent side pulley box 22 during the creep process, the wire box of the stay wire type displacement meter 41 is fixed on the top of the pulley box 22, the wire section is fixed on the geocell fixing clamp 25, the stay wire type displacement meter 41 can monitor the displacement of the geocell 5 to be tested relative to the initial moment at any moment along the stretching direction in real time in the creep process; the integrated circuit board is arranged in the control unit 3, the integrated circuit board is mainly used for collecting, storing and remotely transmitting data, the control unit 3 is electrically connected with the displacement collecting unit, when the integrated circuit board is used specifically, displacement change collected by the control unit 3 through the stay wire type displacement meter 41 obtains displacement of different nodes on the periphery of the geocell in the stretching direction, further, creep quantities U1 of sheets at different positions are obtained, then the control unit 3 collects horizontal displacement quantities of the pulley boxes 22 at different moments through the laser displacement meter 42, further, creep quantities U2 of the sheets at different positions are obtained, the control unit 3 transmits the collected displacement quantities to a far-end upper computer, the far-end upper computer can calculate the integral creep U of the geocell by combining the creep U1 and the creep U2, and the control structure schematic diagram of the control unit 3 provided by the embodiment is shown in fig. 12.
In this embodiment, the sets of pulley boxes 22 disposed on the supporting rail are independent of each other and do not interfere with each other, and in this embodiment, the number of the pulley boxes 22 disposed on the supporting rail can be adjusted according to the number of the peripheral creep test points of the geocell 5 to be tested.
In this embodiment, in order to improve the creep test accuracy, it is preferable to provide a ball in the groove 223 provided in the bottom of the pulley box 22, and the ball can reduce the friction between the groove 223 and the rib 211.
In this embodiment, the weight 24 is a standard mass with a hook at the top, and the weight 24 includes a plurality of different masses or models, and in practical use, the weights 24 of different masses or models can be selected for testing according to practical testing requirements.
In this embodiment, the flexible steel cable 23, the weights 24 and the geocell fixing clamp 25 form an integral structure, the length of the integral structure does not change along with the tension, the types or the qualities of the weights 24 are selected according to actual requirements, the weights 24 with different qualities provide different tensions, and the tension is guaranteed to be constant in each test.
Before actual use, the geocell 5 to be tested is selected, weights 24 with required quality or type are selected, the peripheral creep test points of the geocell 5 to be tested are determined, then the loop bar type clamp 251 and the clamping type clamp 252 are respectively clamped on the complete sheet section and the welding end 52 on the periphery of the geocell 5 to be tested, and each test point of the geocell 5 to be tested is ensured to be in a balanced state; when the device is used, the acquisition unit acquires real-time data of the stay wire type displacement meter 41 and the laser displacement meter 42 in real time, obtains creep quantities U1 and U2 of sheets at different positions according to the acquired data, and finally can calculate out the integral creep U of the geocell according to U1 and U2, and can quantitatively research the creep performance and change rule of the geocell according to U1 and U2.
To sum up, the multi-axis bidirectional creep performance testing device for the geocell in the embodiment is simple in structure and convenient to operate, and adopts multi-axis bidirectional stress creep performance testing to perform multi-point long-term creep performance testing on the geocell 5 to be tested, and records deformation characteristics and tension changes of the geocell 5 to be tested in different stages in real time, so that scientific and effective test data are provided for long-term durability test research of the geocell, the whole creep range of the geocell 5 to be tested is obtained, the test result is more reliable and accurate, and meanwhile, the intelligent collection of the test data is realized by the control unit 3.
The foregoing is merely an example of the present invention and common general knowledge in the art of designing and describing specific structures and features has not been set forth herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the present invention, several modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of protection claimed in the present application shall be subject to the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (9)
1. The multi-shaft bidirectional creep performance testing device for the geocell is characterized by comprising a test steel frame (1), a bearing mechanism (2), a displacement acquisition unit and a control unit (3), wherein the bearing mechanism (2), the displacement acquisition unit and the control unit (3) are all arranged on the test steel frame (1); the test steel frame (1) is of a cubic frame structure, and the cubic frame structure comprises a bottom plate (12) arranged at the bottom and at least three upright posts (11) welded on the bottom plate (12); the bearing mechanism (2) comprises a support guide rail (21), a flexible steel cable (23), weights (24) and a geocell fixing clamp (25), the support guide rail (21) is a cuboid steel block with fixing shafts (212) arranged at two ends and convex ribs (211) arranged on the top surface, the support guide rail (21) is fixed on two adjacent upright posts (11) of the test steel frame (1) through the fixing shafts (212), a plurality of groups of pulley boxes (22) are arranged on the support rail, the top of each pulley box (22) is provided with a groove (221), a pulley (222) is arranged in each groove (221) through a rotating shaft, meanwhile, the bottom of each pulley box (22) is provided with a groove (223) matched with the convex ribs (211) on the top surface of the support guide rail (21), and the pulley boxes (22) can smoothly move on the support guide rail (21) by means of meshing of the grooves (223) and the convex ribs (211), the flexible steel cable (23) is wound on the pulley (222), one end of the flexible steel cable (23) is connected with the weight (24) and naturally droops, the other end of the flexible steel cable is rigidly connected with the geocell fixing clamp (25), the geocell fixing clamp (25) can be additionally arranged at the welding end (52) and the complete sheet end (51) on the periphery of the geocell (5) to be detected, and the geocell (5) to be detected is fixed on the horizontal plane; the displacement acquisition unit comprises a stay wire type displacement meter (41) and a laser displacement meter (42), the laser displacement meter (42) is arranged on the side face of the pulley box (22), the laser displacement meter (42) can record the horizontal displacement of the pulley box (22) relative to the initial moment at any moment in the creep process, a wire box of the stay wire type displacement meter (41) is fixed to the top of the pulley box (22), the tail end of a stay wire (411) is fixed on a geocell fixing clamp (25), and the stay wire type displacement meter (41) can monitor the deformation of the geocell (5) to be detected in the tension direction in real time in the creep process; an integrated circuit is arranged in the control unit (3), and the control unit (3) is electrically connected with the displacement acquisition unit.
2. The geocell multi-axis bi-directional creep performance testing device according to claim 1, wherein the geocell fixing jig (25) comprises a sleeve rod type jig (251) and a clamping type jig (252), the sleeve rod type jig (251) is composed of a sleeve rod fixing end (2511) and a sleeve rod (2512), the clamping type jig (252) is composed of a clamping plate (2521) and a locking assembly (2522), the distance between the clamping plate (2521) can be adjusted by adjusting the tightness of the locking assembly (2522), the sleeve rod type jig (251) is used for clamping the complete sheet end (51) at the periphery of the geocell (5) to be tested, and the clamping type jig (252) is used for clamping the welding end (52) at the periphery of the geocell (5) to be tested.
3. Geocell multiaxial bi-directional creep performance testing device according to claim 1 or 2, wherein balls are provided in the grooves (223) provided in the bottom of the pulley box (22), by means of which balls the friction between the grooves (223) and the ribs (211) is reduced.
4. The geocell multi-axial bi-directional creep performance testing device according to claim 1 or 2, wherein the weight (24) is a proof mass with a hook on top, and the weight (24) comprises a plurality of different masses or models; and/or the flexible steel cable (23), the weights (24) and the geocell fixing clamp (25) form an integral structure, the length of the integral structure is not changed along with the tensile force, the types or the quality of the weights (24) are selected according to actual requirements, the weights (24) with different qualities or types provide different tensile forces, and the tensile force is guaranteed to be constant in each test.
5. The geocell multi-axial bi-directional creep performance testing device according to claim 3, wherein the weight (24) is a proof mass with a hook on top, and the weight (24) comprises a plurality of different masses or models; and/or the flexible steel cable (23), the weights (24) and the geocell fixing clamp (25) form an integral structure, the length of the integral structure is not changed along with the tensile force, the types or the quality of the weights (24) are selected according to actual requirements, the weights (24) with different qualities or types provide different tensile forces, and the tensile force is guaranteed to be constant in each test.
6. The geocell multi-axial bi-directional creep performance testing apparatus of claim 1 or 2,
the displacement change that control unit (3) gathered through stay-supported displacement meter (41) reachs the displacement of the peripheral different nodes of geocell in tensile direction, and then reachs the creep variable U1 of different position sheets, then control unit (3) again through laser displacement meter (42) gather the horizontal displacement volume of pulley box (22) at different moments, and then reachs the creep variable U2 of different position sheets, control unit (3) will acquire creep variable U1 and U2 transmit to the host computer of distal end and then calculate and reachs the whole creep U of geocell.
7. The geocell multi-axial bi-directional creep performance testing apparatus of claim 3,
the displacement change that control unit (3) gathered through stay-supported displacement meter (41) reachs the displacement of the peripheral different nodes of geocell in tensile direction, and then reachs the creep variable U1 of different position sheets, then control unit (3) again through laser displacement meter (42) gather the horizontal displacement volume of pulley box (22) at different moments, and then reachs the creep variable U2 of different position sheets, control unit (3) will acquire creep variable U1 and U2 transmit to the host computer of distal end and then calculate and reachs the whole creep U of geocell.
8. The geocell multi-axial bi-directional creep performance testing apparatus of claim 4, wherein,
the displacement change that control unit (3) gathered through stay-supported displacement meter (41) reachs the displacement of the peripheral different nodes of geocell in tensile direction, and then reachs the creep variable U1 of different position sheets, then control unit (3) again through laser displacement meter (42) gather the horizontal displacement volume of pulley box (22) at different moments, and then reachs the creep variable U2 of different position sheets, control unit (3) will acquire creep variable U1 and U2 transmit to the host computer of distal end and then calculate and reachs the whole creep U of geocell.
9. The geocell multi-axial bi-directional creep performance testing apparatus of claim 5,
the displacement change that control unit (3) gathered through stay-supported displacement meter (41) reachs the displacement of the peripheral different nodes of geocell in tensile direction, and then reachs the creep variable U1 of different position sheets, then control unit (3) again through laser displacement meter (42) gather the horizontal displacement volume of pulley box (22) at different moments, and then reachs the creep variable U2 of different position sheets, control unit (3) will acquire creep variable U1 and U2 transmit to the host computer of distal end and then calculate and reachs the whole creep U of geocell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010969021.XA CN112098190A (en) | 2020-09-15 | 2020-09-15 | Geotechnique's check room multiaxis two-way creep performance testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010969021.XA CN112098190A (en) | 2020-09-15 | 2020-09-15 | Geotechnique's check room multiaxis two-way creep performance testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112098190A true CN112098190A (en) | 2020-12-18 |
Family
ID=73759212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010969021.XA Pending CN112098190A (en) | 2020-09-15 | 2020-09-15 | Geotechnique's check room multiaxis two-way creep performance testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112098190A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405435A (en) * | 2021-05-14 | 2021-09-17 | 陕西飞机工业有限责任公司 | Measuring method for rapidly detecting pulley steel cable offset |
-
2020
- 2020-09-15 CN CN202010969021.XA patent/CN112098190A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405435A (en) * | 2021-05-14 | 2021-09-17 | 陕西飞机工业有限责任公司 | Measuring method for rapidly detecting pulley steel cable offset |
| CN113405435B (en) * | 2021-05-14 | 2023-06-23 | 陕西飞机工业有限责任公司 | Measuring method for rapidly detecting deflection of pulley steel cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102323150B (en) | Simulated test unit and method for slope stability with faulting | |
| CN107870074B (en) | A kind of non-linear internal resonance characterization test method of fiber composite plate and test macro | |
| CN107063883A (en) | A kind of multifunctional combined experimental rig of soil mechanics and test method | |
| CN100495063C (en) | Testing device of magnetic suspension of high-temperature superconductor, and testing method for using the device | |
| CN106442112A (en) | Rock beam sample cantilever type bending test device | |
| CN101017194A (en) | Device for measuring three-dimensional dynamic magnetic field and method thereof | |
| CN107389285A (en) | A kind of quick test and evaluation method of bridge changed based on temperature | |
| CN2869109Y (en) | Portable drop hammer benkelman beams deflectometer | |
| CN112758275B (en) | Experimental device for studying slamming load of waves on six-degree-of-freedom floating platform | |
| CN106896026A (en) | Tensile test apparatus and method | |
| CN87205653U (en) | Mechanical double directions tensile tester | |
| CN107560945A (en) | The composite board performance testing device and its method of testing of compression shear power Combined Loading | |
| CN106053010A (en) | Multi-component fiber balance and measurement method thereof | |
| CN111157443A (en) | Vibration measurement method and device for high-frequency friction force of rock interface | |
| CN109299539A (en) | A method of utilizing curvilinear corner index evaluation cantilever beam rigidity weak link | |
| CN106323158A (en) | Device for testing three-dimensional strain state inside soil mass and testing method | |
| CN112098190A (en) | Geotechnique's check room multiaxis two-way creep performance testing arrangement | |
| CN108801357A (en) | A kind of portable multi-function soil body injection integrated test facility and device based on fiber grating | |
| CN104567771B (en) | Vertical-displacement measurement device for unconfined oil and gas pipeline in transverse motion process | |
| CN213600473U (en) | Geotechnique's check room multiaxis two-way creep performance testing arrangement | |
| CN103453832A (en) | Multipurpose deformation measuring device and measuring method | |
| CN208155747U (en) | Geosynthetics tensile test apparatus based on soil medium | |
| CN106813816A (en) | Counterweight balance is measured | |
| CN203160221U (en) | Multi-bridge static sounding equipment | |
| CN106353183A (en) | Internal force measuring and calibration device and calibration method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |