CN206601889U - Retaining Structures soil pressure experiment device for teaching - Google Patents
Retaining Structures soil pressure experiment device for teaching Download PDFInfo
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- CN206601889U CN206601889U CN201720241599.7U CN201720241599U CN206601889U CN 206601889 U CN206601889 U CN 206601889U CN 201720241599 U CN201720241599 U CN 201720241599U CN 206601889 U CN206601889 U CN 206601889U
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Abstract
The utility model is related to a kind of Retaining Structures soil pressure experiment device for teaching, including open mould groove, retaining wall device, loading device and visualization device, the utility model can after teaching demonstration Retaining Structures soil body no-load and it is loaded when earth pressure at rest, active earth pressure and passive earth pressure distribution situation, and by laboratory experiment, soil pressure size on the corresponding retaining wall of initial estimate.
Description
Technical field
The utility model is related to a kind of Retaining Structures soil pressure experiment device for teaching, and in particular to a kind of Retaining Structures
Soil pressure experiment device for teaching.
Background technology
In Soil mechanics experiment learning process, generally around " grading analysis experiment, Atterberg Limit experiment, relative compaction are real
Test, hit-solid experiment, permeability test, compression experiment, direct shear test, triaxial compression test " eight traditional experiments carry out, content
Around how to obtain soil basic physics, mechanical characteristic, for property feature of the soil body in engineering introduction be related to it is less, compared with
It is that Soil mechanics experiment study content lacks and docked with soil pressure content in soil mechanics on Retaining Structures for typical deficiency,
It is less on the specific experimental provision of this partial content at present.Before making the present invention, the A of Chinese patent CN 102928296,
The A of CN101127169CN, CN 104153341 and 103233486 A disclose the experimental rig on Earth Pressure on Retaining Wall,
But all can not simultaneously Comprehensive Experiment retaining wall banket by quiet dynamic load damage of soil body and active earth pressure, passive earth pressure and
The situation of earth pressure at rest change, and without the visualization system for being adapted to classroom instruction.
The missing of this part Experiment content, it is difficult to the general principle and engineer applied of the profound understanding content, above-mentioned deficiency
Part is more unfavorable not only for the study of soil mechanics, it is also difficult to meet soil pressure of the those skilled in the art to Retaining Structures
The requirement of the theory and experimentation analysis of power.
Utility model content
The utility model provides a kind of Retaining Structures soil pressure experiment device for teaching, can be after teaching demonstration Retaining Structures
Soil body no-load and it is loaded when earth pressure at rest, active earth pressure and passive earth pressure distribution situation, and pass through interior
Soil pressure size on experiment, the corresponding retaining wall of initial estimate.
The utility model solves the technical scheme that its technical problem used：
A kind of Retaining Structures soil pressure experiment device for teaching, including open mould groove, retaining wall device, loading device and
Visualization device,
Described retaining wall device includes motion control device, pushing tow screw rod, removable baffle plate and pressure-detecting device, can
Moving stop is laid in open mould groove, and the plane perpendicular of itself and open mould groove is set, and motion control device is arranged on
The outer side of open mould groove, and it is connected by pushing tow screw rod with the side of removable baffle plate, may move the another of baffle plate
Side is laid with pressure-detecting device；
Described loading device is laid in the top of open mould groove, including support, loading crossbeam, transmission rod, pallet and
Counterweight, support is arranged on the open mould groove side centre position for laying motion control device, and loading crossbeam is laid in opening mould
The overthe openings of type groove, its one end is connected with support, and the other end is connected with pallet, and pallet is built-in with counterweight, on loading crossbeam
Vertical to be fixedly connected with transmission rod, one end and the loading crossbeam of transmission rod are fixed, and its other end is connected with rigid bearing plate or bullet
Property bearing plate；
Described visualization device includes folding rod, camera and display screen, and one end of folding rod is fixed on open mould
Apex on front side of groove, the other end is removable to be connected with camera, and folding rod drives camera record experimentation, by image synchronization
It is sent to display screen；
Include soil pressure cell location-plate and miniature as of the present utility model further preferred, described pressure-detecting device
Soil pressure cell, from top to bottom offers four grooves, groove is built-in with miniature soil pressure cell, micro- in soil pressure cell positioning plate surface
Type soil pressure cell is connected with deformeter by lead；
Include the first bearing plate and the second pressure-bearing as of the present utility model further preferred, described elastic bearing plate
Plate, the surface of the first bearing plate is fixedly connected with transmission rod, and its underrun spring is connected with the second bearing plate, and of spring
Number is at least two；
It is hand wheel type opening/closing device as of the present utility model further preferred, described motion control device；
As it is of the present utility model further preferably, the one end for loading crossbeam is connected by one end of pivot bolt and support
Connect, its other end is connected by hinge bolt with pallet；
As of the present utility model further preferred, baffle plate is may move using the steel plate making wide with open mould groove
Into its side for being connected with pushing tow screw rod is fixed with wedge-shaped stiffened steel plates, the thickness of wedge-shaped stiffened steel plates and removable baffle plate
Thickness is identical；
As it is of the present utility model further preferably, during described rigid bearing plate is rectangular steel plates, rectangular steel plates surface
The heart is welded with screwed joint at position, and for being fixedly connected with transmission rod bolt, the bottom surface of rectangular steel plates is smooth；
Further preferably described open mould groove is formed by connecting steel plate framework by steel plate as of the present utility model,
Wherein two sides parallel with loading crossbeam are transparent plexiglass plate, and poly (methyl methacrylate) plate passes through connecting bolt and steel plate frame
Frame is fixedly connected, and in the practical glue sealing in junction, and welds siffener angle in corner junction；
As of the present utility model further preferred, using bottom surface as zero on open mould groove transparent sides poly (methyl methacrylate) plate
Point, upward level is carved with altitude scale.
By above technical scheme, relative to prior art, the utility model has the advantages that：
The utility model can after teaching demonstration Retaining Structures soil body no-load and it is loaded when earth pressure at rest, actively soil
The distribution situation of pressure and passive earth pressure, and by laboratory experiment, soil pressure size on the corresponding retaining wall of initial estimate.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the overall structure diagram of preferred embodiment of the present utility model；
Fig. 2 is that the difference of preferred embodiment of the present utility model fills mode earth pressure at rest distribution map；
Fig. 3 is that the active soil pressure distribution of preferred embodiment of the present utility model is shown with the influence distribution of removable baffle plate displacement
It is intended to；
Fig. 4 is that the passive soil pressure distribution of preferred embodiment of the present utility model is shown with the influence distribution of removable baffle plate displacement
It is intended to.
In figure：1 is handwheel, and 2 be pushing tow screw rod, and 3 be motion control device, and 4 be support, and 5 be pivot bolt, and 6 be loading
Crossbeam, 7 be pallet, and 8 be transparent plexiglass plate, and 9 be steel plate framework, and 10 be removable baffle plate, and 11 be folding rod, and 12 be shooting
Head, 13 be transmission rod, and 14 be rigid bearing plate, and 15 be counterweight.
Embodiment
The utility model is described in further detail presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram,
Only illustrate basic structure of the present utility model in a schematic way, therefore it only shows the composition relevant with the utility model.
As shown in figure 1, including with lower component：1 is handwheel, and 2 be pushing tow screw rod, and 3 be motion control device, and 4 be support, 5
It is loading crossbeam for pivot bolt, 6,7 be pallet, and 8 be transparent plexiglass plate, and 9 be steel plate framework, and 10 be removable baffle plate,
11 be folding rod, and 12 be camera, and 13 be transmission rod, and 14 be rigid bearing plate, and 15 be counterweight；A kind of earth-retaining of the present utility model
Works soil pressure experiment device for teaching, including open mould groove, retaining wall device, loading device and visualization device,
Described retaining wall device includes motion control device, pushing tow screw rod, removable baffle plate and pressure-detecting device, can
Moving stop is laid in open mould groove, and the plane perpendicular of itself and open mould groove is set, and motion control device is arranged on
The outer side of open mould groove, and it is connected by pushing tow screw rod with the side of removable baffle plate, may move the another of baffle plate
Side is laid with pressure-detecting device；
Described loading device is laid in the top of open mould groove, including support, loading crossbeam, transmission rod, pallet and
Counterweight, support is arranged on the open mould groove side centre position for laying motion control device, and loading crossbeam is laid in opening mould
The overthe openings of type groove, its one end is connected with support, and the other end is connected with pallet, and pallet is built-in with counterweight, on loading crossbeam
Vertical to be fixedly connected with transmission rod, one end and the loading crossbeam of transmission rod are fixed, and its other end is connected with rigid bearing plate or bullet
Property bearing plate；
Described visualization device includes folding rod, camera and display screen, and one end of folding rod is fixed on open mould
Apex on front side of groove, the other end is removable to be connected with camera, and folding rod drives camera record experimentation, by image synchronization
It is sent to display screen；
Include soil pressure cell location-plate and miniature as of the present utility model further preferred, described pressure-detecting device
Soil pressure cell, from top to bottom offers four grooves, groove is built-in with miniature soil pressure cell, micro- in soil pressure cell positioning plate surface
Letter soil pressure cell is connected with deformeter by lead；
Include the first bearing plate and the second pressure-bearing as of the present utility model further preferred, described elastic bearing plate
Plate, the surface of the first bearing plate is fixedly connected with transmission rod, and its underrun spring is connected with the second bearing plate, and of spring
Number is at least two；
It is hand wheel type opening/closing device as of the present utility model further preferred, described motion control device；
As it is of the present utility model further preferably, the one end for loading crossbeam is connected by one end of pivot bolt and support
Connect, its other end is connected by hinge bolt with pallet；
As of the present utility model further preferred, baffle plate is may move using the steel plate making wide with open mould groove
Into its side for being connected with pushing tow screw rod is fixed with wedge-shaped stiffened steel plates, the thickness of wedge-shaped stiffened steel plates and removable baffle plate
Thickness is identical；
As it is of the present utility model further preferably, during described rigid bearing plate is rectangular steel plates, rectangular steel plates surface
The heart is welded with screwed joint at position, and for being fixedly connected with transmission rod bolt, the bottom surface of rectangular steel plates is smooth；
Further preferably described open mould groove is formed by connecting steel plate framework by steel plate as of the present utility model,
Wherein two sides parallel with loading crossbeam are transparent plexiglass plate, and poly (methyl methacrylate) plate passes through connecting bolt and steel plate frame
Frame is fixedly connected, and in the practical glue sealing in junction, and welds siffener angle in corner junction.
As of the present utility model further preferred, using bottom surface as zero on open mould groove transparent sides poly (methyl methacrylate) plate
Point, upward level is carved with altitude scale；
Tested with below above-mentioned experimental provision：
1st, the method for static load is added to comprise the following steps on being banketed：
Step one：Transmission rod connects rigid bearing plate, and rigid bearing plate is placed on surface of banketing；
Step 2：It is m to add the counterbalance mass in counterweight, pallet in pallet is addedf；
Step 3：Measurement loading crossbeam quality m0, loading crossbeam length l0, transmission rod is with pivot bolt apart from lc, transmission rod
Quality is mc, rigid bearing plate quality is mg, rigid bearing plate area is Sg, according to lever rule, dead load
2nd, the method for upper plus vertical dynamic load of banketing comprises the following steps：
Step one：Add and banket in open mould groove, transmission rod connection elastic bearing plate, the second bearing plate lower surface is put
Put on surface of banketing, measure the length x of now spring between the first bearing plate, the second bearing plate0；
Step 2：It is m to add counterbalance mass in counterweight, pallet in palletf；
Step 3：Spring of the measurement in the presence of counterweight and loading crossbeam between the first bearing plate and the second bearing plate
Length is x1；
Step 4：Remove counterweight, spring is driven loading crossbeam vibration, spring be soil body surface to the counter-force of the soil body by
The dynamic load arrived；
Step 5：Measurement loading crossbeam quality m0, loading crossbeam length l0, transmission rod is with pivot bolt apart from lc, transmission rod
Quality is mc, elastic bearing plate quality is mT, the first bearing plate quality is mTS, elastic bearing plate area is ST, according to lever rule
With spring theory of simple harmonic, the suffered dynamic load that bankets is
Wherein t is the time.
3rd, Retaining Structures soil pressure calculation method is tested including earth pressure at rest, active earth pressure test and passive soil pressure
Power is tested
Wherein, earth pressure at rest test method comprises the following steps：
Step one：The placement in layers soil body in open mould groove；
Step 2：It is successively read the corresponding stress value of each soil pressure cell, and each soil pressure cell is to open mould groove
The height (i.e. depth) of bottom surface, draws change curve of the earth pressure at rest along barricade depth；
Active earth pressure test method comprises the following steps：
Step one：Dial gauge, pointer zeroing are fixed in the side of removable baffle plate connection pushing tow screw rod；
Step 2：The placement in layers soil body into open mould groove, after completing compacting at every layer, in having for open mould groove
A little black sand is spread in machine glass side, then fills one layer above, position and shape of the black sand line for observing failure line；
Step 3：It is same that the soil body filled is stood into half an hour, soil pressure when the removable baffle plate displacement of measurement is zero
Power box strain value；It is slow to rotate handwheel, removable baffle plate is moved towards the opposite direction banketed, displacement stops when being Δ s, Δ s
0.1~0.4mm of span, when strain-ga(u)ge reading does not change substantially, reads the stress value of soil pressure cell, observes black sand
The situation of change of line and the position relationship of lucite high scale line；Δ s is moved again, treats that strain-ga(u)ge reading does not change substantially
When, read the stress value of soil pressure cell, the line position change of observation black sand；Current operation is repeated, black sand thread breakage or the soil body occur
Stop experiment during destruction；
Step 4：According to the corresponding stress value of soil pressure cell, relation curve of the active earth pressure with change in depth is drawn.
Passive earth pressure test method comprises the following steps：
Step one：Dial gauge is fixed in the side of removable baffle plate connection pushing tow screw rod, pointer is transferred at Kmm to (K's takes
Value scope is 8~10mm)；
Step 2：To the open mould groove placement in layers soil body, mode and above-mentioned active earth pressure test method step are filled
Two is identical；
Step 3：Soil pressure cell stress value when removable baffle plate displacement is zero is recorded after standing half an hour, it is slow to turn
Start to take turns, the removable baffle plate of rigidity is moved towards the direction banketed, single movement K/3mm treats that strain-ga(u)ge reading is not sent out substantially
During changing, each stress value is recorded, and observe the embedded black sand line of layering in advance and the position relationship for the line drawn on lucite；
Percentage list index points to 0mm after moving three times, after strain-ga(u)ge reading does not change substantially, reinstalls dial gauge, makes
Its pointer is pointed at Kmm, is repeated, and mobile K/3mm strain-ga(u)ge readings record stress value after not changing substantially every time, black
Stop experiment when sand thread breakage or the soil body are destroyed；
Step 4：According to the corresponding stress value of soil pressure cell, change curve of the passive earth pressure with depth is drawn.
Specific loading embodiment is as follows
The method for upper plus static load of banketing comprises the following steps：
Step one：Transmission rod connects rigid bearing plate, and rigid bearing plate is placed on surface of banketing；
Step 2：It is m to add counterbalance mass in counterweight, loading box in loading boxf；
Step 3：Measurement loading crossbeam quality m0, loading crossbeam length l0, transmission rod is with pivot bolt apart from lc, transmission rod
Quality is mc, rigid bearing plate quality is mg, rigid bearing plate area is Sg, according to lever rule, dead load
The method for upper plus vertical dynamic load of banketing comprises the following steps：
Step one：Transmission rod connects elastic bearing plate, and elastic bearing plate lower plate lower surface is placed on surface of banketing, measures this
When spring length x0；
Step 2：It is m to add counterbalance mass in counterweight, loading box in loading boxf；
Step 3：The length for measuring the spring between elastic bearing plate upper and lower plates in the presence of counterweight and loading crossbeam is x1；
Step 4：Remove counterweight, spring is driven loading crossbeam vibration, spring be soil body surface to the counter-force of the soil body by
The dynamic load arrived.
Step 5：Measurement loading crossbeam quality m0, loading crossbeam length l0, transmission rod is with pivot bolt apart from lc, transmission rod
Quality is mc, elastic bearing plate quality is mT, the first bearing plate quality is mTS, elastic bearing plate area is ST, according to lever rule
With spring theory of simple harmonic, the suffered dynamic load that bankets is
Wherein t is the time.
The numerical value wherein set is respectively：
Rigid bearing plate area Sg(m2)：0.0225, rigid bearing plate quality mg(kg)：0.5,
Elastic bearing plate area ST(m2)：0.0225, elastic bearing plate quality mT(kg)：1.0,
First bearing plate quality mTS(kg)：0.5,
Load crossbeam quality m0(kg)：7.4, loading crossbeam length l0(m)：1.3,
Transmission rod quality mc(kg)：1.0, transmission rod and pivot bolt apart from lc(m)：0.76,
It is not added with its length x during counterweight0：0.20m, plus 40kg counterweight its lengths x1：0.15m,
The then coefficient of elasticity k (N/m) 7840 of spring
Soil pressure EXPERIMENTAL EXAMPLE
Retaining Structures soil pressure calculation method is tested including earth pressure at rest, active earth pressure test and passive earth pressure
Test
Earth pressure at rest test method following steps：
Step one：The placement in layers soil body into open mould groove, the first fills mode not to be compacted；Second of side of filling
Formula is filled for compaction in layers, i.e., often fill after 5cm that sand surface is floating, and 30cm × 15cm steel plate is placed on into sandy soils table
Face, is pounded to steel plate from 5cm height free-falling with weight 5kg weight, under continuous three, then shifted steel plate, length direction
Trace overlap joint 20% is pounded with upper one, practical operation work is hit in repetition, until the layer time is hit, then fills the second layer, then reality is hit, until surface of banketing
Maintain an equal level with rigid baffle top, then hit reality；The third mode of filling also requires that compaction in layers is filled, and weight rising height is
10cm, single-click number be 5 under, other processes are constant.
Step 2：The corresponding stress value of each soil pressure cell is successively read, change of the earth pressure at rest along barricade depth is drawn
Change curve, shown in Fig. 2；
Active earth pressure test method following steps：
Step one：Dial gauge, pointer zeroing are fixed in the side of removable baffle plate connection pushing tow screw rod；
Step 2：The placement in layers soil body into open mould groove, fills mode and earth pressure at rest step one is consistent, only exists
After every layer completes, a little black sand being spread in the lucite side of open mould groove, then filling one layer above, black sand line is used to see
Survey position and the shape of failure line；
Step 3：It is same that the soil body filled is stood into half an hour, soil pressure when the removable baffle plate displacement of measurement is zero
Power box strain value；It is slow to rotate handwheel, removable baffle plate is moved towards the opposite direction banketed, displacement stops when being 0.3mm, treats
When strain-ga(u)ge reading does not change substantially, the stress value of soil pressure cell, observation black sand line and lucite high scale line are read
Position relationship situation of change；0.3mm is moved again when strain-ga(u)ge reading does not change substantially, reads answering for soil pressure cell
Force value, the line position change of observation black sand；Current operation is repeated, stops experiment when black sand thread breakage or the soil body are destroyed；
Step 4：According to the corresponding stress value of soil pressure cell, relation curve of the active earth pressure with change in depth, figure are drawn
Shown in 3.
Passive earth pressure test method comprises the following steps：
Step one：Dial gauge is fixed in the side of removable baffle plate connection pushing tow screw rod, pointer is transferred at 9mm；
Step 2：The placement in layers soil body into open mould groove, fills mode and is walked with above-mentioned active earth pressure test method
Rapid two is identical；
Step 3：Soil pressure cell stress value when removable baffle plate displacement is zero is recorded after standing half an hour, it is slow to turn
Start to take turns, the removable baffle plate of rigidity is moved towards the direction banketed, single movement 3mm treats that strain-ga(u)ge reading does not occur substantially
During change, each stress value is recorded, and observe the embedded black sand line of layering in advance and the position relationship for the line drawn on lucite；When
Percentage list index points to 0mm after mobile three times, after strain-ga(u)ge reading does not change substantially, reinstalls dial gauge, makes it
Pointer is pointed at 9mm, is repeated, and mobile 3mm strain-ga(u)ge readings record stress value, black sand line after not changing substantially every time
Stop experiment when fracture or the soil body are destroyed.
Step 4：According to the corresponding stress value of soil pressure cell, passive earth pressure is drawn with the change curve of depth, Fig. 4 institutes
Show；
If desired the experiment soil body is by the soil pressure situation in the case of load, then by loading method to experiment soil after the completion of filling
Body is further applied load, then reads the corresponding stress value of soil pressure cell.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology) with the general understanding identical meaning with the those of ordinary skill in the application art.Should also
Understand, those terms defined in such as general dictionary, which should be understood that, to be had and the meaning in the context of prior art
The consistent meaning of justice, and unless defined as here, will not be explained with idealization or excessively formal implication.
The implication of "and/or" described herein refers to that the simultaneous situation of respective individualism or both is wrapped
Including including.
The implication of " connection " described herein can be that being directly connected between part can also be passed through between part
Other parts are indirectly connected with.
Using it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, pass through above-mentioned description, related work people
Member can carry out various changes and amendments in the range of without departing from this utility model technological thought completely.This reality
The content on specification is not limited to new technical scope, it is necessary to its technology is determined according to right
Property scope.
Claims (9)
1. a kind of Retaining Structures soil pressure experiment device for teaching, it is characterised in that：Including open mould groove, retaining wall device,
Loading device and visualization device,
Described retaining wall device includes motion control device, pushing tow screw rod, removable baffle plate and pressure-detecting device, may move
Baffle plate is laid in open mould groove, and the plane perpendicular of itself and open mould groove is set, and motion control device is arranged on opening
The outer side of model groove, and it is connected by pushing tow screw rod with the side of removable baffle plate, may move the opposite side cloth of baffle plate
Provided with pressure-detecting device；
Described loading device is laid in the top of open mould groove, including support, loading crossbeam, transmission rod, pallet and counterweight,
Support is arranged on the open mould groove side centre position for laying motion control device, and loading crossbeam is laid in open mould groove
Overthe openings, its one end is connected with support, and the other end is connected with pallet, and pallet is built-in with counterweight, vertically solid on loading crossbeam
Surely transmission rod is connected with, one end and the loading crossbeam of transmission rod are fixed, and its other end is connected with rigid bearing plate or elastic pressure-bearing
Plate；
Described visualization device includes folding rod, camera and display screen, and one end of folding rod is fixed on before open mould groove
Side apex, the other end is removable to be connected with camera, and folding rod drives camera record experimentation, image synchronization is transmitted
To display screen.
2. Retaining Structures soil pressure experiment device for teaching according to claim 1, it is characterised in that：Described pressure inspection
Surveying device includes soil pressure cell location-plate and miniature soil pressure cell, and four are from top to bottom offered in soil pressure cell positioning plate surface
Groove, groove is built-in with miniature soil pressure cell, and miniature soil pressure cell is connected with deformeter by lead.
3. Retaining Structures soil pressure experiment device for teaching according to claim 1, it is characterised in that：Described elasticity is held
Pressing plate includes the first bearing plate and the second bearing plate, and the surface of the first bearing plate is fixedly connected with transmission rod, its underrun bullet
Spring is connected with the second bearing plate, and the number of spring is at least two.
4. Retaining Structures soil pressure experiment device for teaching according to claim 1, it is characterised in that：Described motion control
Device processed is hand wheel type opening/closing device.
5. Retaining Structures soil pressure experiment device for teaching according to claim 1, it is characterised in that：Load the one of crossbeam
End is connected by one end of pivot bolt and support, and its other end is connected by hinge bolt with pallet.
6. Retaining Structures soil pressure experiment device for teaching according to claim 1, it is characterised in that：Removable baffle plate is adopted
It is made with the steel plate wide with open mould groove, its side for being connected with pushing tow screw rod is fixed with wedge-shaped stiffened steel plates, wedge
The thickness of shape stiffened steel plates is identical with the thickness of removable baffle plate.
7. Retaining Structures soil pressure experiment device for teaching according to claim 1, it is characterised in that：Described rigidity is held
Pressing plate is rectangular steel plates, and rectangular steel plates centre of surface is welded with screwed joint at position, for being fixedly connected with transmission rod bolt,
The bottom surface of rectangular steel plates is smooth.
8. Retaining Structures soil pressure experiment device for teaching according to claim 1, it is characterised in that：Described opening mould
Type groove is formed by connecting steel plate framework by steel plate, wherein two sides parallel with loading crossbeam are transparent plexiglass plate,
Poly (methyl methacrylate) plate is fixedly connected by connecting bolt with steel plate framework, in the practical glue sealing in junction, and in corner junction
Weld siffener angle.
9. Retaining Structures soil pressure experiment device for teaching according to claim 8, it is characterised in that：Open mould groove side
Using bottom surface as zero point on the transparent plexiglass plate of face, upward level is carved with altitude scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720241599.7U CN206601889U (en) | 2017-03-13 | 2017-03-13 | Retaining Structures soil pressure experiment device for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720241599.7U CN206601889U (en) | 2017-03-13 | 2017-03-13 | Retaining Structures soil pressure experiment device for teaching |
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| Publication Number | Publication Date |
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| CN206601889U true CN206601889U (en) | 2017-10-31 |
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ID=60148009
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111090904A (en) * | 2019-12-23 | 2020-05-01 | 辽宁工程技术大学 | Soil pressure calculation method based on generalized double-shear stress yield criterion |
-
2017
- 2017-03-13 CN CN201720241599.7U patent/CN206601889U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111090904A (en) * | 2019-12-23 | 2020-05-01 | 辽宁工程技术大学 | Soil pressure calculation method based on generalized double-shear stress yield criterion |
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