CN110409518A - A kind of high-speed railway goaf ground intends power stress model experimental rig and method - Google Patents
A kind of high-speed railway goaf ground intends power stress model experimental rig and method Download PDFInfo
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- 238000000034 method Methods 0.000 title abstract description 8
- 238000012360 testing method Methods 0.000 claims abstract description 76
- 239000002689 soil Substances 0.000 claims abstract description 59
- 239000011435 rock Substances 0.000 claims abstract description 49
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000011358 absorbing material Substances 0.000 claims description 5
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- 239000011148 porous material Substances 0.000 claims description 4
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- 238000004458 analytical method Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
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- 230000000694 effects Effects 0.000 description 2
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- 230000037431 insertion Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The present invention relates to a kind of high-speed railway goaf grounds to intend power stress model experimental rig and method, the device includes the test platform equipped with model slot, the two sides of model slot are siding, it is close to test platform in the side of siding, the other side is equipped with multiple card slots, test Rock And Soil is placed in model slot, the inside for testing Rock And Soil is equipped with goaf simulated assembly, the two sides of test Rock And Soil are the baffle for being inserted into card slot, the top for testing Rock And Soil is equipped with load pedestal, the top tiling of load pedestal has load plate, the top of load plate is track pad, track pad is fixedly arranged above two parallel load tracks, the top of test platform is equipped with reaction frame, reaction frame is equipped with downward loading device, buckstay is connected with below loading device, baffle can be inserted into card slot by the present invention, it fixes baffle position and horizontal reacting force can be provided , and the position of baffle can be adjusted according to the position of card slot, and model slot can accommodate various sizes of test Rock And Soil.
Description
Technical field
The present invention relates to the technical field of goaf ground full-scale model test, in particular to a kind of high-speed railway goaf
Ground intends power stress model experimental rig and method.
Background technique
With the rapid development of China express railway, it is difficult that the laying of high-speed railway route also welcomes various technologies
Topic, wherein being also no lack of through goaf ground.So being badly in need of obtaining a large amount of research achievement to support Practical Project.However it is directed to
Goaf ground builds the research of the relevant issues such as high-speed railway, also needs to carry out a large amount of model examination in addition to carrying out field test
It tests, and then obtains integrating reliable test data to support Practical Project.
The patent of invention of Publication No. CN101787716 A, a kind of research high-speed railway dynamic response and long-term settlement rule
The model test apparatus of rule, the device can only under high ferrikinetics dynamic loading roadbed and shallow layer foundation carry out vibration position
It moves, the test of velocity and acceleration, but does not consider deformation of the deeper inside goaf ground in the case where recycling dynamic load cumulative function.It is public
Utility model patent of the number of opening for CN204405654 U, a kind of device for simulating mined out paneling, the device pass through with hollow
In sebific duct of the pipe insertion full of sand, and then achieve the purpose that simulate mined out paneling with sand is put.The device sebific duct full of husky and
Level is laid with, and husky under the effect of upper overburden layer gravity pressure, mobility is little, and operating difficulties step is unintelligible, test effect
Bad, which can only simulate shallow goaf, but cannot simulate high ferrikinetics dynamic load to the function influence of goaf ground.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of high-speed railway goaf grounds to intend the examination of power stress model
Experiment device and method.
The technical scheme is that a kind of high-speed railway goaf ground intends power stress model experimental rig, including
Test platform, the test platform are equipped with model slot, and the two sides of the model slot are siding, and test is close in the side of the siding
Platform, the other side are equipped with multiple horizontal uniformly distributed and vertically arranged card slots, and the test rock of square is placed in the model slot
The soil body, the inside of the test Rock And Soil are equipped with goaf simulated assembly, and the goaf simulated assembly includes being located at test rock
The water storage bag of inside soil body, it is across another side block that one end of the water storage bag, which is across water inlet pipe, the other end of a side baffle,
The outlet pipe of plate is equipped with flowmeter and valve on the outlet pipe, and the two sides of the test Rock And Soil be the gear of insertion card slot
Plate, the top of the test Rock And Soil are equipped with the load pedestal of terrace with edge structure, and the top tiling of the load pedestal has load plate,
The top of the load plate is track pad, and the track pad is fixedly arranged above two parallel load tracks, the examination
The top of platform is tested equipped with the reaction frame across model slot, the reaction frame is equipped with downward loading device, the loading device
Lower section be connected with across load track buckstay.
Preferably, absorbing material is equipped on the inside of the inside of the siding and the baffle.
Preferably, the loading device is actuator.
Preferably, the reaction frame includes the column that two sides are fixed on test platform and the crossbeam across model slot, institute
Stating column and the crossbeam is hollow structure, and the lower section of the crossbeam is mounting plate, and the middle part of the mounting plate is equipped with sliding slot,
The sunpender of T shape is equipped in the sliding slot, the cross bar of the sunpender is located above mounting plate, the vertical bar of the sunpender passes through sliding slot,
The lower end of the vertical bar is fixed with connecting plate, and the connecting plate is bolted with the mounting plate, and the mounting plate is in institute
Multiple uniformly distributed reserved bolt penetration holes are arranged in the two sides for stating sliding slot, and the actuator is fixedly connected with the connecting plate.
Preferably, diagonal brace is connected between the column and the crossbeam, the bottom plate of the column bottom is solid by bolt
It is scheduled on test platform, multiple uniformly distributed gussets is connected between the bottom plate and the column.
Preferably, the outer surface of the baffle is equipped with uniformly distributed stull, and the baffle, which is equipped with, supplies the water inlet pipe and institute
State the reserved pore that outlet pipe passes through.
Preferably, the outside of the baffle is equipped with support frame, support frame as described above support, strut and support plate, the support
It is fixed on model trench bottom, baffle lateral surface is close in the side of the support plate, the other side is attachment base, one end of the strut
It is fixedly connected with support, the other end stretches out obliquely and hinged with the attachment base.
Preferably, the support plate is located between two stulls, the surface that the support plate is contacted with the baffle
Equipped with rubber pad.
The test method of above-mentioned experimental rig the following steps are included:
Step 1, actual condition is measured, high-speed rail roadbed and lower section goaf are zoomed in and out using the principle of similitude, is obtained corresponding
The size of Rock And Soil is tested, and according to the position of test Rock And Soil size setting card slot；
Step 2, production test Rock And Soil, in the embedding goaf simulated assembly in internal corresponding position；
Step 3, test Rock And Soil is put into model slot, and controllable register position；
Step 4, the water in water storage bag is discharged according to the fixed time likelihood ratio；
Step 5, Fluid Dynamics natural precipitation is sprayed above test Rock And Soil；
Step 6, after goaf is stablized, load pedestal, load track and measuring instrument are laid with above test Rock And Soil；
Step 7, reaction frame and loading device are installed；
Step 8, load when being run using loading device simulation high-speed rail；
Step 9, the result of measuring instrument measurement is transferred to computer software and carries out processing analysis, obtains test result.
Further, in step 2, system soil is layered when production test Rock And Soil, every layer is buried corresponding measuring device
And it just can be carried out the production of topsoil after every layer of soil sample related physical qualified of detection
The beneficial effects of the present invention are:
The present invention is arranged model slot and card slot is arranged on the siding of model slot, and baffle can be inserted into card slot, make baffle position
It sets fixed and horizontal reacting force can be provided, and the position of baffle can be adjusted according to the position of card slot, model slot can accommodate not
With the test Rock And Soil of size.
Load pedestal, load plate, track pad, load track above test Rock And Soil are simulated high-speed rail roadbed respectively, are mixed
Solidifying soil pedestal, track plates and high-speed railway rail, can effectively simulate the real working condition of high-speed rail.
The present invention is equipped with absorbing material on the inside of the inside of siding and baffle, can prevent stress wave from springing back.
Goaf simulated assembly is arranged in the present invention in test Rock And Soil, and goaf simulated assembly is adopted using water storage bag simulation
Dead zone, water storage bag can control the speed that discharges water according to using flowmeter and valve, so as to simulate the evolution process in goaf,
The time nullability of the goaf simulated assembly is strong, good fluidity, can effectively simulate the development law of goaf bending band, right
Soil layer disturbance is relatively small；And water storage bag can be arranged to arbitrary shape, and plasticity is good, can simulate the mined out of different situations
Area.
Sunpender is arranged in mounting plate below middle cross beam of the present invention, facilitates actuator adjusting position, is conveniently adjusted suitable add
Carry position.
Detailed description of the invention
Fig. 1 is schematic perspective view of the invention；
Fig. 2 is broken section structural schematic diagram of the invention；
Fig. 3 is schematic view of the front view of the invention；
Fig. 4 is the schematic perspective view of reaction frame；
Fig. 5 is the structural schematic diagram of baffle lateral branch support；
Fig. 6 is the structural schematic diagram of goaf simulated assembly；
In figure: 1, test platform；1-1, siding；1-11, card slot；1-12, reinforcing bar；1-2, rhone；2, baffle；2-1, stull；
2-2, hole for hoist；2-3, reserved pore；3, Rock And Soil is tested；4, goaf simulated assembly；4-1, water storage bag；4-2, water inlet pipe；
4-3, outlet pipe；4-31, flowmeter；4-32, valve；5, pedestal is loaded；5-1, load plate；5-2, track pad；5-3, load
Track；6, actuator；6-1, buckstay；7, reaction frame；7-1, column；7-11, bottom plate；7-2, crossbeam；7-21, mounting plate；7-
211, sliding slot；7-22, sunpender；7-23, connecting plate；7-24, actuator backing plate；7-3, diagonal brace；8, support frame；8-1, support；8-
2, strut；8-3, support plate；8-31, attachment base；8-4, rubber pad.
Specific embodiment
A specific embodiment of the invention is referring to Fig. 1-6:
The technical solution of the present invention is as follows:
A kind of high-speed railway goaf ground intends power stress model experimental rig, such as Fig. 1-6, including test platform 1, the test
Platform 1 is equipped with the perforative model slot in both ends, and the two sides of model slot are siding 1-1, and siding 1-1 is internal mixed equipped with reinforcing bar 1-12
Concrete board, test platform 1 is close in the side of siding 1-1, the other side is equipped with multiple horizontal uniformly distributed and vertically arranged card slot 1-11,
The test Rock And Soil 3 of square is placed in model slot, the inside of test Rock And Soil 3 is equipped with goaf simulated assembly 4, goaf
Simulated assembly 4 includes the water storage bag 4-1 inside test Rock And Soil 3, and one end of water storage bag 4-1 is across a side baffle 2
Water inlet pipe 4-2, the other end are the outlet pipe 4-3 across another side baffle 2, are equipped with flowmeter 4-31 and valve on outlet pipe 4-3
Door 4-32, the two sides of the bottom of model slot are equipped with the rhone 1-2 of closely siding 1-1, and the slope foot of rhone 1-2 is not less than 3%, examination
The two sides for testing Rock And Soil 3 are the baffle 2 for being inserted into card slot 1-11, and the top of baffle 2 is set there are two the hole for hoist 2-2 for being located at two sides,
Baffle 2 is made using tempered glass, and the outer surface of baffle 2 is equipped with uniformly distributed stull 2-1, baffle 2 be equipped with for water inlet pipe 4-2 and
It is close to baffle 2 and siding 1-1, siding 1- respectively in the surface of the reserved pore 2-3 that outlet pipe 4-3 is passed through, test 3 surrounding of Rock And Soil
1 inside and the inside of baffle 2 are equipped with absorbing material, can prevent from answering with the absorbing material on the inside of baffle 2 on the inside of siding 1-1
Reeb rebound, the top of test Rock And Soil 3 are equipped with the load pedestal 5 of terrace with edge structure, and the top tiling of load pedestal 5 has load plate
The top of 5-1, load plate 5-1 are track pad 5-2, and track pad 5-2's is fixedly arranged above two parallel load track 5-
3, the top of test platform 1 is equipped with the reaction frame 7 across model slot, and reaction frame 7 is equipped with downward loading device, loading device
Lower section is connected with the buckstay 6-1 across load track 5-3, and loading device is actuator 6, and actuator 6 is electro-hydraulic servo dynamic
Actuator 6, actuator 6 connect constant-pressure variable Hydraulic servo system and are controlled by computer, which can not only simulate not synchronized
The high-speed rail of degree, axis weight, moreover it is possible to realize simulation different wave high frequency running.
Card slot 1-11 is arranged in the present invention on the siding 1-1 of model slot, and baffle 2 can be inserted into card slot 1-11, make to keep off
Horizontal reacting force is fixed and can be provided in 2 position of plate, and the position of baffle 2 can be adjusted according to the position of card slot 1-11, model slot
Various sizes of test Rock And Soil 3, load pedestal 5, the load plate 5-1, track pad 5- of 3 top of test Rock And Soil can be accommodated
2, load track 5-3 simulates high-speed rail roadbed, concrete bed, track plates and high-speed railway rail respectively, can effectively simulate high-speed rail
Real working condition.
Goaf simulated assembly 4 is also arranged in the present invention in test Rock And Soil 3, and goaf simulated assembly 4 uses water storage bag
4-1 simulates goaf, and water storage bag 4-1 can control the speed that discharges water according to using flowmeter 4-31 and valve 4-32, so as to
Simulate the evolution process in goaf, the time nullability of the goaf simulated assembly 4 is strong, good fluidity, can effectively simulate and adopt
Dead zone is bent the development law of band, disturbs to soil layer relatively small；And water storage bag 4-1 can be arranged to arbitrary shape, and it is plastic
Property is good, can simulate the goaf of different situations.
Reaction frame 7 in the present invention includes that two sides are fixed on the column 7-1 on test platform 1 and the crossbeam across model slot
7-2, column 7-1 and crossbeam 7-2 are hollow structure, and diagonal brace 7-3, the bottom column 7-1 are connected between column 7-1 and crossbeam 7-2
The bottom plate 7-11 in portion is bolted on test platform 1, and multiple uniformly distributed muscle are connected between bottom plate 7-11 and column 7-1
Plate, the lower section of crossbeam 7-2 are mounting plate 7-21, and the middle part of mounting plate 7-21 is equipped with sliding slot 7-211, is equipped with T shape in sliding slot 7-211
Sunpender 7-22, the cross bar of sunpender 7-22 is located above mounting plate 7-21, the vertical bar of sunpender 7-22 passes through sliding slot 7-211, vertical bar
Lower end be fixed with connecting plate 7-23, connecting plate 7-23 is bolted with mounting plate 7-21, and mounting plate 7-21 is in sliding slot 7-
Multiple uniformly distributed reserved bolt penetration holes are arranged in 211 two sides, and actuator 6 is fixedly connected with connecting plate 7-23, and sunpender 7-22 is convenient
6 adjusting position of actuator is conveniently adjusted suitable loading position, and uniformly distributed mounting hole is arranged in the two sides of column 7-1, can adjust
The link position of crossbeam 7-2 is connected with actuator backing plate 7-24 between actuator 6 and connecting plate 7-23.
Support frame 8,8 support 8-1 of support frame, strut 8-2 and support plate 8-3, branch are equipped in the outside of baffle 2 in the present invention
Seat 8-1 is fixed on model trench bottom, and 2 lateral surface of baffle is close in the side of support plate 8-3, the other side is attachment base 8-31, strut
One end of 8-2 is fixedly connected with support 8-1, the other end stretches out obliquely and hinged with attachment base 8-31, and support plate 8-3 is located at two
Between a stull 2-1, the surface that support plate 8-3 is contacted with baffle 2 is equipped with rubber pad 8-4, the support when loading force is larger
Frame 8 can be avoided the deformation of baffle 2.
Above-mentioned high-speed railway goaf ground intends the test method of power stress model experimental rig, comprising the following steps:
Step 1, actual condition is measured, high-speed rail roadbed and lower section goaf are zoomed in and out using the principle of similitude, is obtained corresponding
The size of Rock And Soil 3 is tested, and according to the position of test 3 size of Rock And Soil setting card slot 1-11；
Step 2, production test Rock And Soil 3, in the embedding goaf simulated assembly 4 in internal corresponding position, production test Rock And Soil 3
It is layered system soil, every layer is buried corresponding measuring device and just can be carried out upper layer after detecting every layer of soil sample related physical qualified
The production of soil；
Step 3, test Rock And Soil 3 is put into model slot, and 2 position of controllable register；
Step 4, the water in water storage bag 4-1 is discharged according to the fixed time likelihood ratio；
Step 5, Fluid Dynamics natural precipitation is sprayed above test Rock And Soil 3；
Step 6, after goaf is stablized, load pedestal 5, load track 5-3 and measuring instrument are laid with above test Rock And Soil 3
Device；
Step 7, reaction frame 7 and loading device are installed；
Step 8, load when being run using loading device simulation high-speed rail；
Step 9, the result of measuring instrument measurement is transferred to computer software and carries out processing analysis, obtains test result.
Claims (10)
1. a kind of high-speed railway goaf ground intends power stress model experimental rig, including test platform, it is characterised in that: institute
Test platform is stated equipped with model slot, the two sides of the model slot are siding, and test platform, the other side are close in the side of the siding
Equipped with multiple horizontal uniformly distributed and vertically arranged card slots, the test Rock And Soil of square, the examination are placed in the model slot
The inside for testing Rock And Soil is equipped with goaf simulated assembly, and the goaf simulated assembly includes the storage inside test Rock And Soil
Water bag, it is outlet pipe across another side baffle, institute that one end of the water storage bag, which is across water inlet pipe, the other end of a side baffle,
It states and flowmeter and valve is installed on outlet pipe, the two sides of the test Rock And Soil are the baffle for being inserted into card slot, the test rock
The top of the soil body is equipped with the load pedestal of terrace with edge structure, and the top tiling of the load pedestal has load plate, the load plate
Top is track pad, and the track pad is fixedly arranged above two parallel load tracks, the top of the test platform
Equipped with the reaction frame across model slot, the reaction frame is equipped with downward loading device, is connected with below the loading device
Across the buckstay of load track.
2. high-speed railway goaf according to claim 1 ground intends power stress model experimental rig, it is characterised in that:
Absorbing material is equipped on the inside of the inside of the siding and the baffle.
3. high-speed railway goaf according to claim 2 ground intends power stress model experimental rig, it is characterised in that:
The loading device is actuator.
4. high-speed railway goaf according to claim 3 ground intends power stress model experimental rig, it is characterised in that:
The reaction frame includes the column that two sides are fixed on test platform and the crossbeam across model slot, the column and the crossbeam
It is hollow structure, the lower section of the crossbeam is mounting plate, and the middle part of the mounting plate is equipped with sliding slot, is equipped with T in the sliding slot
The sunpender of shape, the cross bar of the sunpender is located above mounting plate, the vertical bar of the sunpender passes through sliding slot, and the lower end of the vertical bar is solid
Surely there is connecting plate, the connecting plate is bolted with the mounting plate, and the mounting plate is arranged in the two sides of the sliding slot
Multiple uniformly distributed reserved bolt penetration holes, the actuator are fixedly connected with the connecting plate.
5. high-speed railway goaf according to claim 4 ground intends power stress model experimental rig, it is characterised in that:
Diagonal brace is connected between the column and the crossbeam, the bottom plate of the column bottom is bolted on test platform,
Multiple uniformly distributed gussets are connected between the bottom plate and the column.
6. high-speed railway goaf according to claim 5 ground intends power stress model experimental rig, it is characterised in that:
The outer surface of the baffle is equipped with uniformly distributed stull, and the baffle is pre- equipped with passing through for the water inlet pipe and the outlet pipe
Stay pore.
7. high-speed railway goaf according to claim 6 ground intends power stress model experimental rig, it is characterised in that:
The outside of the baffle is equipped with support frame, support frame as described above support, strut and support plate, and the support is fixed on model slot bottom
Portion, baffle lateral surface is close in the side of the support plate, the other side is attachment base, one end of the strut and the fixed company of support
It connects, the other end stretches out obliquely and hinged with the attachment base.
8. high-speed railway goaf according to claim 7 ground intends power stress model experimental rig, it is characterised in that:
The support plate is located between two stulls, and the surface that the support plate is contacted with the baffle is equipped with rubber pad.
9. a kind of high-speed railway goaf as claimed in claim 8 ground intends the test method of power stress model experimental rig,
It is characterized by comprising following steps:
Step 1, actual condition is measured, high-speed rail roadbed and lower section goaf are zoomed in and out using the principle of similitude, is obtained corresponding
The size of Rock And Soil is tested, and according to the position of test Rock And Soil size setting card slot；
Step 2, production test Rock And Soil, in the embedding goaf simulated assembly in internal corresponding position；
Step 3, test Rock And Soil is put into model slot, and controllable register position；
Step 4, the water in water storage bag is discharged according to the fixed time likelihood ratio；
Step 5, Fluid Dynamics natural precipitation is sprayed above test Rock And Soil；
Step 6, after goaf is stablized, load pedestal, load track and measuring instrument are laid with above test Rock And Soil；
Step 7, reaction frame and loading device are installed；
Step 8, load when being run using loading device simulation high-speed rail；
Step 9, the result of measuring instrument measurement is transferred to computer software and carries out processing analysis, obtains test result.
10. test method according to claim 9, it is characterised in that: in step 2, production test Rock And Soil Shi Yaofen
Layer system soil, every layer is buried corresponding measuring device and just can be carried out topsoil after detecting every layer of soil sample related physical qualified
Production.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910630346.2A CN110409518A (en) | 2019-07-12 | 2019-07-12 | A kind of high-speed railway goaf ground intends power stress model experimental rig and method |
| GB2019395.9A GB2596165B (en) | 2019-07-12 | 2020-06-10 | Pseudo-dynamic loading model test apparatus and method for high-speed railway foundation in mined-out area |
| PCT/CN2020/095429 WO2021008278A1 (en) | 2019-07-12 | 2020-06-10 | High-speed railway goaf foundation pseudo-dynamic loading model test apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910630346.2A CN110409518A (en) | 2019-07-12 | 2019-07-12 | A kind of high-speed railway goaf ground intends power stress model experimental rig and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110409518A true CN110409518A (en) | 2019-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910630346.2A Pending CN110409518A (en) | 2019-07-12 | 2019-07-12 | A kind of high-speed railway goaf ground intends power stress model experimental rig and method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110409518A (en) |
| WO (1) | WO2021008278A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111610094A (en) * | 2020-05-29 | 2020-09-01 | 西南交通大学 | Model test device and test method for high-speed railway roadbed passing karez |
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