CN208283167U - Multifunctional earth grid pull-out test device based on actual condition - Google Patents
Multifunctional earth grid pull-out test device based on actual condition Download PDFInfo
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- CN208283167U CN208283167U CN201820788012.9U CN201820788012U CN208283167U CN 208283167 U CN208283167 U CN 208283167U CN 201820788012 U CN201820788012 U CN 201820788012U CN 208283167 U CN208283167 U CN 208283167U
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Abstract
The utility model provides a kind of multifunctional earth grid pull-out test device based on actual condition characterized by comprising sample case is fixed on bearing sheet, includes: cabinet, the multiple rows of sliding slot being arranged from the top down on front and two sides；Vertical loading unit includes: the air cushion layer being placed on filler, and the load plate on air cushion layer is arranged in, and applies the loader of vertical force to load plate；Lateral drawing portion includes: clamping the fixture of the positive edge of TGXG, the pull rod being attached thereto, reaction frame, the drawing driver for being mounted on reaction frame, being connected with pull rod；And measurement portion, include: preceding head sheave is located at side sliding slot outer surface, rear end connected multiple pulley components corresponding with row's node in the edge of TGXG side, indicate the graduation mark of pulley position, the tension sensor and displacement sensor being mounted in lateral drawing portion, and it is respectively facing two video recorders of two sides of cabinet.
Description
Technical field
The utility model belongs to pull-out test device field, and in particular to a kind of multifunctional earth lattice based on actual condition
Grid pull-out test device.
Background technique
TGXG is a kind of geosynthetics, and TGXG is in reticular structure, tensile strength with higher and compared with
Low elongation, it is generous larger at node, there is lateral resistance effect to earth material particle.Its grid rib is thicker, and intensity is high, is not easy
Mesh fracture occurs, impact resistance is strong, can greatly improve anti-sharp stone and puncture ability；Mesh stability is good, has to coarse-grained soil relatively strong
Nested effect and play arching, increase the shearing resistance of TGXG and filler, can be formed with soil body particle highly effective
Occlusion and nested effect, form string bag effect, integral reinforced effect is more obvious, so it is public to be widely used in high speed
In the engineerings such as road, the roadbed treatment of railway, slope earth-retaining wall, high slope.
TGXG is as a kind of novel geosynthetics, in order to meet its requirement in civil engineering,
It needs to carry out a series of performance tests to it.The performance test of TGXG include measure material itself physico mechanical characteristic and
The interaction property of reliable material and soil is provided.
Drawing experimental facilities disclosed at present all once can only carry out pull-out test to one layer of TGXG, and practical work
The case where there are two layers or even multilayer TGXG in journey, such as Reinforced subgrade, reinforced soil retaining wall etc..The equipment ruler of pull-out test
Very little general all relatively small, due to the limitation of indoor model dimensional effect, the research association about ceramic-metal bond interaction can not
Avoid influence by boundary effect.And existing pull-out test equipment is easy to appear pulling force uneven distribution and causes to answer
Power is concentrated, and is destroyed material in clip end, can be caused to have a great impact to the accuracy of the result of test in this way.In addition, existing
There is the loading method of equipment mostly based on hydraulic jack and the load of water tank single side, and both loading methods usually will appear soil
The situation that body stress is irregular and load is difficult.When existing equipment does not fully take into account simulation actual condition, boundary effect is to examination
Test the influence of reliability.
Utility model content
The utility model is to carry out to solve the above-mentioned problems, and it is an object of the present invention to provide a kind of based on the more of actual condition
Function geogrid pull-out test device, can not only realize while to two layers and the above TGXG is tested, can also be
Pull-out test is carried out to various model TGXG under dynamic and static loading condition, and dimensional effect and boundary can be effectively reduced
The influence of condition.
The utility model to achieve the goals above, uses following scheme:
The utility model provides a kind of multifunctional earth grid pull-out test device based on actual condition, and feature exists
In, comprising: sample case includes: at least one layer geotechnique that top opening, inner hollow are used to place filler and be embedded in filler
The rectangular-shape cabinet of grid, front and two sides on be disposed with from the top down it is corresponding with multilayer TGXG more
Sliding slot is arranged, three sliding slots that same row is located on three faces are corresponding with three edge of same TGXG, will be located at just
The sliding slot in face will be located at the sliding slot of two sides as side sliding slot as front sliding slot；Vertical loading unit includes: being placed on
On filler, the air cushion layer that can be moved up and down along cabinet wall, be arranged on air cushion layer, can be moved up and down along cabinet wall
Load plate, and it is located at sample box top overthe openings, alignment load plate applies the loader of vertical loading force；Lateral drawing portion,
Include: gripping the fixture of the positive edge corresponding with front sliding slot of TGXG, be connected with fixture and laterally prolong
The pull rod stretched, reaction frame, and the drawing driver for being mounted on reaction frame and being connected with the rear end of pull rod；And measurement portion, packet
Contain: preceding head sheave is located at side sliding slot outer surface, rear end link protrudes into the sliding slot of side and in the side edge of TGXG
Multiple pulley components corresponding to row's node, be arranged on two sides of cabinet and be located near sliding slot, table
The graduation mark for showing pulley position, the tension sensor being mounted in lateral drawing portion and displacement sensor, and it is respectively facing case
Two sides of body, two video recorders for recording pulley position change procedure.
Multifunctional earth grid pull-out test device based on actual condition involved in the utility model, can also have
Such feature: where the size of box house are as follows: long 800mm, wide 600mm, high 900mm, the wall thickness of cabinet are 15mm, often
The lateral length of a front sliding slot is 400mm, and vertical width is 8mm, forms drawing mouth, the lateral length of each side sliding slot is
600mm, width 8mm, the spacing of adjacent each row's sliding slot are 100mm.
Multifunctional earth grid pull-out test device based on actual condition involved in the utility model, can also have
Such feature: it is equipped with convex block on four sides of load plate, is equipped with and matches with convex block, simultaneously on four inner walls of cabinet
And the embeded slot extended from the top down, the inclination of load top plate can be prevented and cause top load assignment uneven.
Multifunctional earth grid pull-out test device based on actual condition involved in the utility model, can also have
Such feature: fixture includes: two clamping plates, fastener and connector, each along length direction equipped with multiple on each clamping plate
Connecting hole, two clamping plates clamp TGXG from upper and lower two sides respectively, and fastener is inserted on two clamping plates in corresponding connecting hole,
Two clamping plates are tightened together with TGXG, two clamping plates are connected by connector with pull rod.
Multifunctional earth grid pull-out test device based on actual condition involved in the utility model, can also have
Such feature: the connecting hole being arranged on clamping plate is threaded hole, and the spacing of adjacent connecting hole is 2cm.
Multifunctional earth grid pull-out test device based on actual condition involved in the utility model, can also wrap
Contain: multiple smooth glue films are fixedly linked with TGXG, and wrap respectively TGXG positive edge and two sides
Edge.
Multifunctional earth grid pull-out test device based on actual condition involved in the utility model, can also have
Such feature: pulley component includes: the connecting rod of pulley blocks and buckle, pulley blocks include: rotation axis, and pass through the rotation axis
Coaxially two connected pulleys, one end of connecting rod are connected with the rotation axis of pulley blocks, the other end be formed by bending hook portion and with geotechnique
Node in the side edge of grid is corresponding connected.
Multifunctional earth grid pull-out test device based on actual condition involved in the utility model, can also have
Such feature: servo-hydraulic loader is quiet hydrodynamic pressure servo vibration device, and drawing driver is punching jack.
Multifunctional earth grid pull-out test device based on actual condition involved in the utility model, can also have
Such feature: tension sensor is mounted between pull rod and connector, and displacement sensor is displacement dial gauge, is driven with drawing
Device is connected.
Multifunctional earth grid pull-out test device based on actual condition involved in the utility model, can also have
Such feature: lateral drawing portion contains at least two fixture, at least two drawing drivers and at least two pull rods, owns
Drawing driver is mounted on reaction frame from lower downward arrangement, and every row's drawing driver is corresponding with a row front sliding slot, surveys
Amount portion includes two tension sensors and two displacement sensors.
The action and effect of utility model
Multifunctional earth grid pull-out test device provided by the utility model based on actual condition, can be simultaneously to list
Layer or multilayer TGXG carry out pull-out test test；Servo-hydraulic loader applies a force upon in load plate, then air cushion layer
Load is buffered and is conducted, load is enable to be uniformly distributed at the top of filler；And by selecting different front sliding slots
As drawing mouth, different depth of packing has just been selected accordingly, so as to easily adjust filler thickness according to actual condition
Degree；TGXG can then be obtained towards two sides of cabinet to record the change in location situation of pulley component using video recorder
In the side in row's node each node change in displacement situation, and then can be acquired according to tension sensor and displacement sensor
Data obtain the relationship between the relative displacement of muscle soil and geogrid deformation amount, to need the engineering of reinforcement to provide reference.
In addition, connecting smooth glue film to three edge of TGXG, filler heap in practical drawing process can be effectively solved
Product is especially deposited in drawing direction in wall, avoids filler from blocking and cause the problems in stress collection.
Detailed description of the invention
Fig. 1 is the multifunctional earth grid pull-out test device based on actual condition that the utility model embodiment is related to
Structural schematic diagram；
Fig. 2 is the multifunctional earth grid pull-out test device based on actual condition that the utility model embodiment is related to
Side view；
Fig. 3 is the multifunctional earth grid pull-out test device based on actual condition that the utility model embodiment is related to
Top view；
Fig. 4 is the multifunctional earth grid pull-out test device based on actual condition that the utility model embodiment is related to
Perspective view；
Fig. 5 is the cabinet (a) and load plate (b) correspondence diagram that the utility model embodiment is related to；
Fig. 6 is the structural schematic diagram for the fixture that the utility model embodiment is related to；
Fig. 7 is the installation relation schematic diagram one of TGXG, smooth glue film and fixture that the utility model embodiment is related to；
Fig. 8 is the installation relation schematic diagram two of TGXG, smooth glue film and fixture that the utility model embodiment is related to；
Fig. 9 is the structural schematic diagram for the pulley component that the utility model embodiment is related to.
Specific embodiment
Referring to the drawings to the multifunctional earth grid pull-out test involved in the utility model based on actual condition
Device is elaborated.
<embodiment>
As shown in Fig. 1~4 and 7, the multifunctional earth grid pull-out test device 10 based on actual condition includes bearing sheet
20, sample case 30, vertical loading unit 40, lateral drawing portion 50, multiple smooth glue films 60 and measurement portion 70.
Bearing sheet 20 is rectangular-shape, and upper and lower surface is all parallel with horizontal plane, plays the role of carrying.
Sample case 30 is fixedly mounted on bearing sheet 20, it includes cabinet 31 and multiple rows of sliding slot 32.
The top opening of cabinet 31, inner hollow and in a rectangular parallelepiped shape, for placing filler and being embedded in filler
At least one TGXG G to be tested.In the present embodiment, cabinet 31 is by Bolted angle connection on bearing sheet 20, angle steel
Side and the side wall of cabinet 31 are welded, and bolt hole is arranged in the other side, are connect with mating bolt with bearing sheet 20；31 bottom of cabinet
Face steel plate and surrounding steel plate are using welded connecting；Size inside cabinet 31 are as follows: long 800mm, wide 600mm, high 900mm；Cabinet
31 wall thickness is 15mm.In addition, entire 31 coating lubricating oil of cabinet makes inner wall keep lubrication.When placing sample, first in cabinet 31
The middle filler (such as railway ballast) for placing certain altitude, then TGXG G to be tested is placed on above, finally TGXG G's
Add the filler of certain altitude again above；That is, filler will be arranged in the upper layer and lower layer in TGXG G.
Sliding slot 32 is arranged on the front and two sides of cabinet 31, and runs through the side wall of cabinet 31, in the present embodiment,
As illustrated in fig. 1 and 2, it is provided with 15 sliding slots 32 altogether, is disposed with five (i.e. five rows) phases on each face from the top down
Mutually parallel sliding slot 32.On three faces positioned at same row three sliding slots 32 it is in the same plane, so as to it is same
Three edge of block TGXG G are corresponding.On each face, the spacing of neighbouring each row's sliding slot 32 is 100mm, is located at most
Bottom plate 200mm of the sliding slot 32 of one row of lower section apart from cabinet 31.Positive sliding slot 32 will be located at and be used as front sliding slot 32a, by position
Sliding slot 32 in two sides is used as side sliding slot 32b；The lateral length of each front sliding slot 32a is 400mm, vertical width
(spacing of sliding slot upper and lower surface) is 8mm, forms drawing mouth 32a, perpendicular with drawing direction shown in arrow F in Fig. 2；Each
The lateral length of side sliding slot 32b is 600mm, width 8mm, and parallel with drawing direction F.Each sliding slot 32a and 32b
Inside it is coated with lubricating oil.
As shown in Figures 4 and 5, vertical loading unit 40 includes air cushion layer 41, load plate 42 and servo-hydraulic loader 43.
Air cushion layer 41 is placed on top layer's filler, and surrounding fits with cabinet 31 and contacts, and can be along in cabinet 31
Wall moves up and down.It is 1 ton of load, lifting altitude 80mm, long using rubber hoisting air cushion as air cushion layer 41 in the present embodiment
800mm or so, wide 600mm or so, inflatable, water-filling use.
Load plate 42 is arranged on air cushion layer 41, can also move up and down along 31 inner wall of cabinet.As shown in figure 5, load
Convex block 42a is equipped on four sides of plate 42, be equipped on four inner walls of cabinet 31 match with convex block 42a and from
On the embeded slot that extends downwardly.Matched by convex block 42a and embeded slot 31a allow load plate 42 preferably with cabinet 31
Inner wall fitting buckle, stablize movement, avoid leading to top-loaded plate due to the expansion of filler in cabinet 31 in drawing process
42 run-off the straights.
Servo-hydraulic loader 43 is erected at right above 30 top opening of sample case by fixed frame 43a, is directed at load plate
42 apply vertical loading force.In the present embodiment, the servo-hydraulic loader 43 used is quiet hydrodynamic pressure servo vibration device, quiet hydrodynamic
Servo vibration device is pressed to apply sound load to load plate 42 straight down, air cushion layer 41 is buffered and conducted to load, and lotus is made
Load can be uniformly distributed at the top of filler.
As shown in Fig. 1~2,4 and 6, lateral drawing portion 50 include two fixtures, 51, two pull rods 52, reaction frame 53 and
Two drawing drivers 54.
Fixture 51 is used to grip the positive edge (edge i.e. corresponding with front sliding slot 32a) of TGXG G.Folder
Tool 51 includes two clamping plates 511, fastener (not shown) and connector 512.
Multiple connecting hole 511a are uniformly provided with each along length direction on each clamping plate 511, two clamping plates 511 are respectively from upper
Clamp TGXG G in lower two sides.In the present embodiment, the connecting hole 511a being arranged on two clamping plates 511 is threaded hole, and phase
The spacing of adjacent connecting hole 511a is 2cm.It, can be according to the aperture of TGXG G due to being provided with multiple connecting hole 511a
The various combination fixed TGXG G of insertion fastener is selected, for example, aperture is the TGXG G of 35mm, every two connecting holes
511a is fixed using fastener；Aperture is the TGXG G of 65mm, is fixed every three connectors 512 using fastener.
Fastener is matched with connecting hole 511a, is inserted into corresponding connecting hole 511a on upper clamp plate 511 and lower clamp plate
In, and upper clamp plate 511 and lower clamp plate are tightened together with TGXG G.In the present embodiment, using M3 nut and nut conduct
Fastener.After two clamping plates 511 clamp TGXG G, so that it may solid using nut and nut according to the connecting hole 511a of selection
It is fixed.
Each connector 512 is frame-type structure, and front end is equipped with upper and lower two mounting posts, for two clamping plates to be fixedly mounted
511, rear end is connected with pull rod 52.
Each pull rod 52 is connected with a fixture 51, and extends along drawing direction F.
Reaction frame 53 is mounted by means of bolts on bearing sheet 20, in the present embodiment, offers five altogether on reaction frame 53
A installation position is corresponded with five row front sliding slot 32a (five drawing mouths).
Two drawing drivers 54 are removably mounted on respectively on the different installation positions of reaction frame 53, and with pull rod 52
Rear end is connected, and two drawing drivers 54 can be according to the different adjustment installation sites of the position TGXG G, so that drawing
Drawing can be implemented to the TGXG G in the different drawing mouths by pulling out driver 54, and two drawing drivers 54 can be with
Pull-out test is carried out to two layers of TGXG G simultaneously.Drawing driver 54 is punching jack in the present embodiment.
As shown in fig. 7, multiple smooth glue films 60 (inclined stripe part in figure) are fixedly linked with TGXG G, and point
The positive edge and two side edge of TGXG G are not wrapped.Smooth 60 one side of glue film can prevent from being located at cabinet 31
Filler card near inner wall in TGXG G, caused by cause boundary effect；On the other hand and fixture can be effectively reduced
The stress concentration effect in this block region between 51 and TGXG G.In the present embodiment, the smooth glue film 60 that uses for thickness 2~
The rubber membrane of 5mm can reduce frictional force in one layer of butter laid on；Smooth 60 upper layer and lower layer of glue film wrap TGXG G
Positive edge and two side edge, and the TGXG G Node connectedness with the region；As shown in figure 8, two clamping plates
511 clamp smooth glue film 60, to clamp and fix indirectly TGXG G.
As shown in Fig. 1~2 and 9, measurement portion 70 includes multiple pulley components 71, ten graduation mark (not shown), two
72, two displacement sensors 73 of a tension sensor and two video recorder (not shown).
Each pulley component 71 includes the connecting rod 712 of pulley blocks 711 and buckle.Pulley blocks 711 include rotation axis 711a
With two pulley 711a being coaxially connected by rotation axis 711a.Pulley 711a is located at the outer of side sliding slot 32b, and can be along
Its outer surface slidably reciprocates.One end of connecting rod 712 is connected with rotation axis 711a；The other end protrudes into the sliding slot 32b of side, and preceding
End is formed by bending hook portion, corresponding with the node in the side edge of TGXG to be connected, and constrains node with hook portion.Multiple pulleys
Component 71 is connected with row's node in the side edge of TGXG respectively, so as to the displacement of each node of synchronous reaction
Situation of change.
Ten graduation marks are separately positioned on 31 two sides of cabinet, and are located at the top area of ten side sliding slot 32b
At domain, for indicating the position of pulley 711a.During the drawing process, by observing and recording the position of each pulley 711a outside cabinet 31
It sets, can be obtained the displacement of each node of TGXG.
Tension sensor 72 and displacement sensor 73 are installed in lateral drawing portion 50.Specifically, tension sensor 72
It is mounted between pull rod 52 and connector 512, acquires drawing force data；Displacement sensor 73 is to be displaced dial gauge, its one
End is mounted on 20 top of bearing sheet by mounting rack 73a, and the other end is connect with drawing driver 54, acquires displacement data.
Two video recorders are arranged near cabinet 31, and are respectively facing 31 two sides of cabinet, record each pulley
The change in location process of 711a.
As shown in Figure 1 to 9, it is based on the above structure, using provided by the utility model based on the multi-functional of actual condition
The specific operation process of the progress pull-out test of geogrid pull-out test device 10 are as follows:
It under the conditions of static load, selects railway ballast for filler, while pull-out test is carried out to two layers of TGXG G.According under
Upward sequence selects first and two drawing mouth 32a of third.The two drawing mouth 32a divide cabinet 31 for three parts, point
Not carry out filler, packed height is 200mm.
One, the railway ballast of one layer of 200mm thickness is loaded to cabinet 31.
Two, by smooth glue film 60, fixture 51 and TGXG G by the connection of Fig. 1 and 8, also cross first drawing mouth
32a passes through sliding slot 32 (11) in rod failure pulley 711a (12) later and connects smooth glue film 60.
Three, the railway ballast of 200mm thickness is filled out, step 2 is repeated, completes to be laid with second layer TGXG G.
Four, the railway ballast of 200mm thickness is filled out, successively places air cushion layer 41 and load plate 42 from the bottom up.
Five, fixture 51, tension sensor 72, pull rod 52, drawing driver 54, reaction frame 53, displacement are then sequentially connected
Sensor 73.
Six, start servo-hydraulic loader 43, be adjusted to setting value, apply vertical dead-load, open and shoot with video-corder after numerical stability
Device simultaneously starts drawing driver 54.
After the test, according to the change in location situation and tension sensor of each pulley 711a of video recorder record
72 and displacement sensor 73 and acquisition data, obtain the value that horizontal loading changes over time.Muscle can be obtained by calculating again
Relationship between native relative displacement and geogrid deformation amount, thus to need the engineering of reinforcement to provide reference.
Above embodiments are only the illustration done to technical solutions of the utility model.Involved in the utility model
Multifunctional earth grid pull-out test device based on actual condition is not merely defined in described in the embodiment above
Structure, but be defined by the scope defined by the claims..Base of the utility model one of ordinary skill in the art in the embodiment
Any modify or supplement or equivalence replacement done on plinth, all in the utility model range claimed.
In the above-described embodiments, lateral drawing portion be comprising two fixtures, two drawing drivers and two pull rods, from
And pull-out test can be carried out to two layers of TGXG simultaneously；In the utility model, in order to carry out more layers TGXG simultaneously
Pull-out test, lateral drawing portion may include more than two fixtures, drawing driver and pull rod, correspondingly, measurement portion packet
Tension sensor and displacement sensor containing identical quantity.
Claims (10)
1. a kind of multifunctional earth grid pull-out test device based on actual condition characterized by comprising
Sample case includes: at least one layer geotechnique that top opening, inner hollow are used to place filler and be embedded in the filler
The rectangular-shape cabinet of grid, front and two sides on be disposed with from the top down it is corresponding with TGXG described in multilayer
Multiple rows of sliding slot, three sliding slots that same row is located on three faces are opposite with three edge of TGXG described in same
It answers, positive sliding slot will be located at as front sliding slot, the sliding slot of two sides will be located at as side sliding slot；
Vertical loading unit includes: the air cushion layer that is placed on the filler, can move up and down along the cabinet wall, setting
On the air cushion layer, the load plate that can be moved up and down along the cabinet wall, and it is located in the opening of the sample box top
Side, is directed at the loader that the load plate applies vertical loading force；
Lateral drawing portion includes: gripping the folder of the positive edge corresponding with the front sliding slot of the TGXG
Tool, the pull rod for being connected and being laterally extended with the fixture, reaction frame, and be mounted on the reaction frame and with the pull rod
The connected drawing driver in rear end；And
Measurement portion includes: preceding head sheave is located at side sliding slot outer surface, rear end link protrudes into the side sliding slot and with
The corresponding connected multiple pulley components of row's node in the side edge of the TGXG, are arranged at the cabinet two
On a side and it is located near the sliding slot, the graduation mark of the expression pulley position, is mounted in the lateral drawing portion
Tension sensor and displacement sensor, and be respectively facing two sides of the cabinet, record the pulley position and changed
Two video recorders of journey.
2. the multifunctional earth grid pull-out test device according to claim 1 based on actual condition, it is characterised in that:
Wherein, the size of the box house are as follows: long 800mm, wide 600mm, high 900mm,
The wall thickness of the cabinet is 15mm,
The lateral length of each front sliding slot is 400mm, and vertical width is 8mm, forms drawing mouth,
The lateral length of each side sliding slot be 600mm, width 8mm,
The adjacent spacing for respectively arranging the sliding slot is 100mm.
3. the multifunctional earth grid pull-out test device according to claim 1 based on actual condition, it is characterised in that:
Wherein, convex block is equipped on four sides of the load plate, be equipped on four inner walls of the cabinet with it is described convex
The embeded slot that block matches and extends from the top down.
4. the multifunctional earth grid pull-out test device according to claim 1 based on actual condition, it is characterised in that:
Wherein, the fixture includes: two clamping plates, fastener and connector,
Multiple connecting holes are equipped with each along length direction on each clamping plate, two clamping plates are clamped from upper and lower two sides respectively
The TGXG,
The fastener is inserted on two clamping plates in the corresponding connecting hole, by two clamping plates and the geotechnological lattice
Grid tighten together,
Two clamping plates are connected by the connector with the pull rod.
5. the multifunctional earth grid pull-out test device according to claim 4 based on actual condition, which is characterized in that
Also include:
Wherein, the connecting hole being arranged on the clamping plate is threaded hole, and the spacing of the adjacent connecting hole is 2cm.
6. the multifunctional earth grid pull-out test device according to claim 1 based on actual condition, which is characterized in that
Also include:
Multiple smooth glue films, are fixedly linked with the TGXG, and wrap the front of the TGXG respectively
Edge and two side edge.
7. the multifunctional earth grid pull-out test device according to claim 1 based on actual condition, it is characterised in that:
Wherein, the pulley component includes: the connecting rod of pulley blocks and buckle,
Pulley blocks include: rotation axis, and two pulleys being coaxially connected by the rotation axis,
One end of the connecting rod is connected with the rotation axis of the pulley blocks, the other end be formed by bending hook portion and with the geotechnological lattice
Node in the side edge of grid is corresponding connected.
8. the multifunctional earth grid pull-out test device according to claim 1 based on actual condition, it is characterised in that:
Wherein, the loader is quiet hydrodynamic pressure servo vibration device, and the drawing driver is punching jack.
9. the multifunctional earth grid pull-out test device according to claim 1 based on actual condition, it is characterised in that:
Wherein, the tension sensor is mounted between the pull rod and the fixture,
Institute's displacement sensors are displacement dial gauge, are connected with the drawing driver.
10. the multifunctional earth grid pull-out test device according to claim 1 based on actual condition, feature exist
In:
Wherein, the lateral drawing portion contains at least two the fixture, at least two drawing drivers and at least two
Pull rod,
All drawing drivers are mounted on the reaction frame from lower downward arrangement, drawing driver and one described in every row
It is corresponding to arrange the front sliding slot,
The measurement portion contains at least two tension sensor and two displacement sensors.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820788012.9U CN208283167U (en) | 2018-05-25 | 2018-05-25 | Multifunctional earth grid pull-out test device based on actual condition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820788012.9U CN208283167U (en) | 2018-05-25 | 2018-05-25 | Multifunctional earth grid pull-out test device based on actual condition |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504112A (en) * | 2021-06-11 | 2021-10-15 | 中国水产科学研究院东海水产研究所 | Strength testing equipment for semi-rigid polyester tortoise shell net piece |
| CN115538404A (en) * | 2022-12-01 | 2022-12-30 | 中国科学院、水利部成都山地灾害与环境研究所 | Dynamic circulation load lower pile net structure load sharing test device and test method thereof |
-
2018
- 2018-05-25 CN CN201820788012.9U patent/CN208283167U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504112A (en) * | 2021-06-11 | 2021-10-15 | 中国水产科学研究院东海水产研究所 | Strength testing equipment for semi-rigid polyester tortoise shell net piece |
| CN115538404A (en) * | 2022-12-01 | 2022-12-30 | 中国科学院、水利部成都山地灾害与环境研究所 | Dynamic circulation load lower pile net structure load sharing test device and test method thereof |
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