CN110398417A - The device of High-speed Train Loads is simulated in a kind of railway bed On-site Loading Test of Rc - Google Patents
The device of High-speed Train Loads is simulated in a kind of railway bed On-site Loading Test of Rc Download PDFInfo
- Publication number
- CN110398417A CN110398417A CN201910731097.6A CN201910731097A CN110398417A CN 110398417 A CN110398417 A CN 110398417A CN 201910731097 A CN201910731097 A CN 201910731097A CN 110398417 A CN110398417 A CN 110398417A
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- Prior art keywords
- rigid
- buffer layer
- load plate
- simulated
- railway bed
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- 238000012360 testing method Methods 0.000 title claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 4
- 238000004088 simulation Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
Abstract
The invention discloses the devices that High-speed Train Loads are simulated in a kind of railway bed On-site Loading Test of Rc, consisting of: buffer layer (2) are arranged in the underface of the load disk (3a) of high-speed hydraulic rammer compactor (3), buffer layer (2) is placed in the middle part of rigid load plate (1) upper surface；The buffer layer (2) is made of the cross-bedding of the rigid panel (2a) on top and lower part, the cross-bedding is staggered to form by thick rubber pad (2b) and sheet metal (2c), and crossbedded bottom and the top is thick rubber pad (2b)；The rigid load plate (1) and buffer layer (2) is equipped with vertical center limit hole (5), rigid limit bar (4) is inserted into center limit hole (5), and the height of rigid limit bar (4) is lower than the sum of the thickness of rigid load plate (1) and buffer layer (2).The apparatus structure is simple, reliable performance, installation and debugging conveniently moving, test efficiency are high, experimentation cost is low.
Description
Technical field
The present invention relates to the devices that High-speed Train Loads are simulated in a kind of railway bed On-site Loading Test of Rc.
Background technique
The construction of China express railway, common passenger rail and heavy haul railway all enters a fast-developing period.
The high-speed railway speed of service is high, and heavy haul railway load-carrying tonnage is big, to the dynamical stability of rail track works such as roadbed, pile foundation etc.
Performance proposes the requirement of high standard.Before line construction object comes into operation, need to carry out simulation High-speed Train Loads to it
Kinetic stability field test test, obtain the associated power response parameter of roadbed, specify its power performance, to guarantee railway
Safe operation.
Primary structure and the work that the device of High-speed Train Loads is simulated in existing railway bed On-site Loading Test of Rc are former
Reason is: eccentric, the bottom of the frame of eccentric are connected with speed increaser by Hooks coupling universal coupling using frequency-conversion and speed-regulation motor
Biggish rigid load plate is then connected, the surface setting clump weight of rigid load plate is used to increase the stabilization of rigid load plate.Become
Frequency modulation electric motor with speed passes through the speed increaser equipped with circulation lubricating and cooling system and combines to eccentric block multiple and different in eccentric
It is equal to provide revolving speed, turns to opposite power output, works is generated by rigid load plate and vibrates up and down power.Its deficiency
Place is: the device for simulating High-speed Train Loads is special equipment, and structure is complicated for equipment, and installation, replacement debugging are cumbersome；It needs to make
With expensive frequency-conversion and speed-regulation motor, speed increaser；Power resources are electric energy, but build the road scene often without electricity for, need using
Diesel-driven generator power generation, energy consumption cost are high；Integral device is bulky, and transport is inconvenient；Current extensive railway is difficult to adapt to build
If required roadbed kinetic stability on-the-spot test needs.
Summary of the invention
Goal of the invention of the invention is to provide the dress that High-speed Train Loads are simulated in a kind of railway bed On-site Loading Test of Rc
It sets, the apparatus structure is simple, reliable performance, installation and debugging conveniently moving, test efficiency are high, experimentation cost is low.
The technical scheme adopted by the invention for realizing the object of the invention is, simulates in a kind of railway bed On-site Loading Test of Rc
The device of High-speed Train Loads, consisting of:
Buffer layer is arranged in the underface of the load disk of high-speed hydraulic rammer compactor, and buffering is placed on rigid load plate upper surface
Middle part；
The buffer layer is made of the cross-bedding of the rigid panel on top and lower part, and the cross-bedding is by thick rubber pad
It is staggered to form with sheet metal, and crossbedded bottom and the top is thick rubber pad；
The rigid load plate and buffer layer are equipped with vertical center limit hole, and rigid limit bar is inserted into center limit
Hole, and the height of rigid limit bar is lower than rigid the sum of load plate and the thickness of buffer layer.
The working process and principle of apparatus of the present invention are:
Device is transported to scene, then rigid load plate is placed on test roadbed, by the cross-bedding number of plies tune of buffer layer
The whole number of plies to setting.Opening high-speed hydraulic rammer compactor makes its descent altitude Impulsive load disk by setting that drops hammer, Jin Ertong
Cross buffer layer, rigid load plate delivers load to railway bed, i.e., realize in railway bed On-site Loading Test of Rc to train
The simulation of load action.
The amplitude and frequency for loading load can be realized in the cross-bedding number of plies for adjusting the descent altitude and buffer layer dropped hammer
It adjusts.
Compared with prior art, the beneficial effects of the present invention are:
One, it has been found that by between rigid load plate and high-speed hydraulic rammer compactor, increase by thick rubber pad and Bao Gang
The buffer layer that plate is staggered to form can filter and attenuate the radio-frequency component of 40Hz or more in rammer compacter impact load, so that ramming
(wheel rolling) load is close to the load of roadbed when real machine finally loads load and the train operation to roadbed.Meanwhile passing through
The adjustment for the descent altitude dropped hammer can be realized the adjusting of the amplitude of load load；To be tried in railway bed kinetic stability
In testing, the Load Simulation to different type train is cleverly realized with high-speed hydraulic rammer compactor.
Two, the present invention changes costly, complicated special equipment by the widely used high-speed hydraulic rammer compactor in the scene of building the road,
Buffer layer, rigid load plate composition are mixed, the experimentation cost of railway bed On-site Loading Test of Rc is greatly reduced.Device is only by ramming
Real machine, buffer layer, rigid load plate three parts are constituted, and structure is simple, and group reload request is low, quick for installation, conveniently moving；Test effect
Rate is high.
Three, the power of high-speed hydraulic rammer compactor of the invention can be provided directly by the engine of the loading machine at the scene of building the road,
The intermediate link for being converted into electric energy is avoided, the utilization rate of energy is high, low energy consumption；It further reduced the load of railway bed scene
The experimentation cost of test.
Above-mentioned rigid load plate is formed by welding by horizontal bottom plate and vertical floor, and region immediately below buffer layer
Rigid load plate has poured strong concrete；Hanging ring is also welded on the floor, bottom plate has not poured high-intensitive coagulation
The region of soil is equipped with sensor and buries hole.
Such rigidity load plate reduces the production cost under the premise of guaranteeing rigidity.The hanging ring side welded on floor
Just hoisting transportation；The sensor of the sensor of bottom plate embedded test roadbed dynamic response parameter when burying hole convenient for test.
The thick rubber pad with a thickness of 10mm, sheet metal with a thickness of 2mm, rigid panel with a thickness of 20mm.
Thick rubber pad, the sheet metal of thickness in this way, material source is extensive, is convenient for preparation, and is convenient for the tune of the buffer layer number of plies
Section.The intensity of rigid panel is able to bear the impact of rammer compacter.
The present invention is further described in detail with reference to the accompanying drawings and detailed description.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the overlooking structure diagram of the rigid load plate in the embodiment of the present invention.
Specific embodiment
Fig. 1-2 is shown, and a kind of specific embodiment of the invention is: column are simulated in a kind of railway bed On-site Loading Test of Rc
The device of vehicle load action, consisting of:
Buffer layer 2 is arranged in the underface of the load disk 3a of high-speed hydraulic rammer compactor 3, and buffer layer 2 is placed in rigid load plate 1
The middle part of upper surface；
The buffer layer 2 is made of the cross-bedding of the rigid panel 2a on top and lower part, and the cross-bedding is by thick rubber
Rubber mat 2b and sheet metal 2c are staggered to form, and crossbedded bottom and the top is thick rubber pad 2b；
The rigid load plate 1 and buffer layer 2 is equipped with vertical center limit hole 5, and rigid limit bar 4 is inserted into center
Limit hole 5, and the height of rigid limit bar 4 is lower than rigid the sum of load plate 1 and the thickness of buffer layer 2.
The rigid load plate 1 of this example is formed by welding by horizontal bottom plate 1a and vertical floor 1b, and immediately below buffer layer 2
The rigid load plate 1 in region has poured strong concrete 1c；Hanging ring 1d is also welded on the floor 1b, bottom plate 1a is not poured
The region for building strong concrete 1c is equipped with sensor and buries hole 1e.
The thick rubber pad 2b of this example with a thickness of 10mm, sheet metal 2c with a thickness of 2mm, rigid panel 2a with a thickness of
20mm。
Claims (3)
1. the device of High-speed Train Loads is simulated in a kind of railway bed On-site Loading Test of Rc, consisting of:
Buffer layer (2) are arranged in the underface of the load disk (3a) of high-speed hydraulic rammer compactor (3), and buffer layer (2) is placed in rigidity and adds
The middle part of support plate (1) upper surface；
The buffer layer (2) is made of the cross-bedding of the rigid panel (2a) on top and lower part, and the cross-bedding is by thick rubber
Rubber mat (2b) and sheet metal (2c) are staggered to form, and crossbedded bottom and the top is thick rubber pad (2b)；
The rigid load plate (1) and buffer layer (2) is equipped with vertical center limit hole (5), rigid limit bar (4) insertion
Center limit hole (5), and the height of rigid limit bar (4) is lower than the sum of the thickness of rigid load plate (1) and buffer layer (2).
2. the device of High-speed Train Loads is simulated in a kind of railway bed On-site Loading Test of Rc according to claim 1,
Be characterized in that: the rigid load plate (1) is formed by welding by horizontal bottom plate (1a) and vertical floor (1b), and buffer layer
(2) the rigid load plate (1) in region has poured strong concrete (1c) immediately below；It is also welded with and hangs on the floor (1b)
Ring (1d), the region that bottom plate (1a) does not pour strong concrete (1c) are equipped with sensor and bury hole (1e).
3. the device of High-speed Train Loads is simulated in a kind of railway bed On-site Loading Test of Rc according to claim 1,
Be characterized in that: the thick rubber pad (2b) with a thickness of 10mm, sheet metal (2c) with a thickness of 2mm, rigid panel (2a)
With a thickness of 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910731097.6A CN110398417A (en) | 2019-08-08 | 2019-08-08 | The device of High-speed Train Loads is simulated in a kind of railway bed On-site Loading Test of Rc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910731097.6A CN110398417A (en) | 2019-08-08 | 2019-08-08 | The device of High-speed Train Loads is simulated in a kind of railway bed On-site Loading Test of Rc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110398417A true CN110398417A (en) | 2019-11-01 |
Family
ID=68327925
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910731097.6A Pending CN110398417A (en) | 2019-08-08 | 2019-08-08 | The device of High-speed Train Loads is simulated in a kind of railway bed On-site Loading Test of Rc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110398417A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792006A (en) * | 2019-12-05 | 2020-02-14 | 中铁二院工程集团有限责任公司 | Existing railway roadbed side width structure, side width system and construction method thereof |
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| CN103063451A (en) * | 2012-12-26 | 2013-04-24 | 浙江大学 | Rail transit train wholly moving load analog loading method and device |
| CN103499500A (en) * | 2013-10-22 | 2014-01-08 | 中南大学 | Testing device capable of simulating dynamic load repetition function of impact and vibration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792006A (en) * | 2019-12-05 | 2020-02-14 | 中铁二院工程集团有限责任公司 | Existing railway roadbed side width structure, side width system and construction method thereof |
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