CN108168822A - Rockfall safeguard structure percussion lower stress monitoring model pilot system and method - Google Patents
Rockfall safeguard structure percussion lower stress monitoring model pilot system and method Download PDFInfo
- Publication number
- CN108168822A CN108168822A CN201711317168.5A CN201711317168A CN108168822A CN 108168822 A CN108168822 A CN 108168822A CN 201711317168 A CN201711317168 A CN 201711317168A CN 108168822 A CN108168822 A CN 108168822A
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- Prior art keywords
- slopes
- safeguard structure
- rockfall
- pilot system
- lower stress
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
- E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
- E01F7/045—Devices specially adapted for protecting against falling rocks, e.g. galleries, nets, rock traps
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses a kind of rockfall safeguard structure percussion lower stress monitoring model pilot systems, and method, including test-bed, slopes analogue unit, data acquisition unit, safeguard structure and falling rocks mobile mechanism, the upper end of test-bed is provided with slopes analogue unit, the slopes analogue unit includes the different slopes of several slope angles, slopes top end is provided with the falling rocks mobile mechanism that stone is driven to be moved between different slopes, the slopes bottom end is provided with safeguard structure, data acquisition unit is provided at safeguard structure, realize that the Rolling Stone of setting slopes monitors the impact force of safeguard structure.
Description
Technical field
The present invention relates to a kind of rockfall safeguard structure percussion lower stress monitoring model pilot system and methods.
Background technology
Along with the rapid development of China's economy, the great foundation engineering such as large quantities of Rail Highway traffic engineering accelerates construction
Paces.In the project under construction of Southwestern China area, there is high gradient slope in large quantities.Dangerous Rock Body unstability is common disaster form.
In transportation route work progress and operation phase, the phenomenon that being susceptible to Dangerous Rock Body unstability, the security of the lives and property of people is caused huge
Big loss causes the problems such as construction delay, abuse, investment cost increase.Model testing method is according to phase
Like than and the theory of similarity, Practical Project is dwindled into a model according to a certain percentage, by scale smaller or waiting and comparing mould
It is tested accordingly in type, obtains related data and obtain a kind of method of related conclusions.At present, model test has become side slope
One of more main research means of engineering field.
For rockfall safeguard structure percussion lower stress situation study on monitoring to preventing and reducing natural disasters with great meaning
Justice.But the comprehensive monitoring research currently for rockfall safeguard structure percussion lower stress situation is less.
Invention content
The present invention is to solve the above-mentioned problems, it is proposed that a kind of rockfall safeguard structure percussion lower stress monitors mould
Type pilot system and method, present system under rockfall safeguard structure percussion in tunneling and underground engineering by
Power situation is studied, and to instruct Practical Project, some guidance instructions are proposed for engineering construction.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of rockfall safeguard structure percussion lower stress monitoring model pilot system, including test-bed, slopes
Analogue unit, data acquisition unit, safeguard structure and falling rocks mobile mechanism, wherein：
The upper end of the test-bed is provided with slopes analogue unit, and it is different that the slopes analogue unit includes several slope angles
Slopes, slopes top end, which is provided with, drives the falling rocks mobile mechanism that is moved between different slopes of stone, and the slopes bottom end is set
Safeguard structure is equipped with, data acquisition unit is provided at safeguard structure, realizes Rolling Stone the rushing for safeguard structure of setting slopes
Hit power monitoring.
Further, the falling rocks mobile mechanism includes the sliding rail being set on test-bed and is moved along sliding rail
Mobile platform is provided with lifting regulating mechanism on the mobile platform, can adjust the angle of inclination of mobile platform, discharges stone
Block.
Further, the mobile platform is moved along sliding rail, can reach the top of the slope position of each slopes.
Further, the sliding rail moves on test-bed, can change vertical in slopes of sliding rail and translate up.
Further, the slopes set different slope angles according to experimental design operating mode, and are layered with analog material
Fill compacting.
Further, the safeguard structure includes protection network and roll guard, and protection network is arranged in the middle part of slopes, apart from slope
Roll guard is set at a certain distance from body slope foot.
Further, it is right in stress and acceleration transducer Rolling Stone test specimen dropping process to be provided at the safeguard structure
The monitoring of protection network impact force and impact force monitoring of the Rolling Stone to roll guard for crossing protection network.
Further, the protection network is simulated really respectively according to likelihood ratio selection steel wire, finer wire net and reinforcing bar
Drawstring, wire side and the column of protection network.
The roll guard selects the true roll guard of iron plate welding analog according to the likelihood ratio.
Further, the slopes bottom is provided with railway bed.
The railway bed pours into the true roadbed of cuboid block simulation using concrete blinding and is placed in side slope
Slope foot.
Further, the test-bed both sides are spliced by single Pin Steel Structures by high-strength bolt, according to model
Size changes Steel Structure Pin numbers, and two pieces of tempered glass are installed in inside, realize the visualization of experiment process, test-bed back is one
The complete section steel plate of block, the rear part setting staircase.
Method of work based on above system builds pilot system, adjusts falling rocks on setting slopes vertical and horizontal
Direction, and discharging, when rock-fall impact protection net surface and surge guard fence surface, monitoring element monitor by force information
And vibration information and force analysis vibration regularity.
Monitoring point can be horizontally arranged at interval along protection net surface.
Compared with prior art, beneficial effects of the present invention are：
1) steel frame, steel rack, rack bottom plate are made up of high strength steel component reserved bolt slot splicing, are had removable
Dress property can change Steel Structure Pin numbers, and can meet the requirement of intensity according to model size.
2) position change of falling rocks release device in the longitudinal direction is realized equipped with two sliding rails, above rack by analog material system
The slope angle of work can be set according to experimental design operating mode, have great flexibility.
3) steel wire, finer wire net, reinforcing bar and welding iron plate simulate drawstring, wire side, column and the guard boom of true stone blocking net
Column, similarity are high.
4) monitoring element is laid on stone blocking net wire side and roll guard the real-time monitoring, it can be achieved that stress and acceleration
With transmission, comprehensive strong, experimental implementation is easy.
Description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not form the improper restriction to the application for explaining the application.
Fig. 1 is model test single unit system front elevation；
Fig. 2 is model test single unit system back figure；
Fig. 3 is Rolling Stone release device schematic diagram
Fig. 4 sets up an office schematic diagram for stone blocking net monitoring element cloth
Fig. 5 sets up an office schematic diagram for roll guard monitoring element cloth
Wherein：1 slopes, 2 stone blocking nets, 3 roll guards, 4 sliding rails, 5 data acquisition cabinet, 6 computers, 7 roadbeds, 8 rack bottoms
Seat, 9 test-beds, 10 falling rocks release devices, 11 falling rocks test specimens, 12 staircases, 13 sliding supports, 14 adjustable supports, 15 slide
Band.
Specific embodiment：
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.It is unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
In the present invention, term as " on ", " under ", "left", "right", "front", "rear", " vertical ", " level ", " side ",
The orientation or position relationship of instructions such as " bottoms " are based on orientation shown in the drawings or position relationship, only to facilitate describing this hair
Bright each component or component structure relationship and determining relative, not refer in particular to either component or element in the present invention, it is impossible to understand
For limitation of the present invention.
In the present invention, term such as " affixed ", " connected ", " connection " should be interpreted broadly, and expression can be fixedly connected,
Can also be integrally connected or be detachably connected；It can be directly connected, can also be indirectly connected by intermediary.For
The related scientific research of this field or technical staff can determine the concrete meaning of above-mentioned term in the present invention as the case may be,
It is not considered as limiting the invention.
As a kind of specific embodiment, as shown in Figure 1, a kind of be used for rockfall safeguard structure percussion lower stress
Monitoring model pilot system mainly includes (1) model test stand：Rack bottom plate is spliced by bolt by six pieces of section steel plates
8, provide pedestal for top test-bed 9.Both sides external rack is spliced by single Pin Steel Structures by high-strength bolt, inside peace
Two pieces of tempered glass are filled, realize the visualization of experiment process.Back is one piece of complete section steel plate, and the rear part sets staircase
12.Lay two sliding rails 4 in left and right sides rack upper surface；(2) test model body：Including slope soil, stone blocking net model, protection
Fence model and railway bed model set the different slopes 1 of three pieces of slope angles according to experimental design operating mode, are laid in three pieces of slopes
Three protection networks 2 set a roll guard 3 and railway bed away from slope foot a distance；(3) falling rocks release device 10：It is comprehensive
The release of simulation falling rocks test specimen 11 is realized using Slidable support 13, adjustable support 14 and slip band 15；(4) system is monitored：
Using stress and acceleration transducer, including being blocked in Rolling Stone test specimen dropping process to the monitoring of 2 impact force of stone blocking net and crossing
The Rolling Stone of stone net 2 monitors the impact force of railway fence.Data acquisition device includes data acquisition cabinet 5 and computer 6 and soft
Part processing system.
Rack base 8 is spliced into rack bottom plate by six pieces of section steel plates by bolt, and pedestal is provided for top test-bed.
Both sides external rack is spliced by single Pin Steel Structures by high-strength bolt, can change steel structure according to model size
Frame Pin numbers.Two pieces of tempered glass are installed in inside, realize the visualization of experiment process.Back is one piece of complete section steel plate,
Rear portion sets staircase.
9 two sliding rails 4 in top of test-bed can realize the position change of falling rocks release device 10 in the longitudinal direction.
1 soil body of side slope sets different slope angles according to experimental design operating mode, and carries out placement in layers compacting with analog material.
2 model of stone blocking net simulated respectively according to likelihood ratio selection steel wire, finer wire net and reinforcing bar true stone blocking net drawstring,
Wire side and column.
Roll guard 3 selects the true roll guard of iron plate welding analog according to the likelihood ratio.
Railway bed 7 pours into the true roadbed of cuboid block simulation using concrete blinding and is placed in Slope
Foot.
As shown in figure 3, falling rocks release device 10 is made of Slidable support, adjustable support and slip band, falling rocks examination
Part 11 is deposited on slip band 15, and the height of adjustable support 14 can control the height that falling rocks discharges, and release device 10 can be with
By sliding rail, the left and right translation on Slidable support 13, integrally can in the longitudinal direction be translated, realization is fallen by two wood side-guide 4 of rack
The change of position on stone three-dimensional.
Monitoring system lays mode according to the monitoring element of design, and stress and acceleration transducer are placed in stone blocking net net
On face and roll guard.And the data monitored are uploaded on computer 6 by data acquisition cabinet 5 and analyze its rule.
Analysis software can select existing system.
Method based on above system, including the following steps：
(1) section steel plate with bolt slot is arranged side by side, cooperation high-strength bolt splicing is assembled into rack bottom plate 8；
(2) according to Pin numbers needed for experiment, steel frame is spliced into using section steel plate, the installation steel on the inside of external frame or so
Change glass, cooperation high-strength bolt fixes lower frame and rack bottom plate bolt, and sets a staircase 12 at back；
It (3) will be on two wood side-guides 4 above 10 integral installation of falling rocks release device to frame；
(4) slopes analog material placement in layers inside rack and is tamped, slopes is carried out to cut slope setting 3 not
Same slope angle；
(5) three protection networks 2 in slopes are set, true stone blocking net is simulated respectively with steel wire, finer wire net and reinforcing bar
Drawstring, wire side and column, and lay monitoring element in design monitoring position；
(6) the true roll guard 3 of iron plate welding analog is selected, and monitoring element is laid, and adopt in design monitoring position
The true roadbed 7 of cuboid block simulation is poured into concrete blinding and is placed in side slope slope foot；
(7) adjusting bracket 14 and slip band 15 complete the release of falling rocks, and 2 surface of rock-fall impact stone blocking net and impact are anti-
During 3 surface of barrier shielding, what monitoring element monitored is uploaded to data acquisition cabinet by force information and vibration information and utilizes software
Force analysis vibration regularity.
As shown in Figure 4 and Figure 5, monitoring element can be horizontally arranged at interval along stone blocking net surface.
The foregoing is merely the preferred embodiments of the application, are not limited to the application, for the skill of this field
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (10)
1. a kind of rockfall safeguard structure percussion lower stress monitoring model pilot system, it is characterized in that：Including testing stand
Frame, slopes analogue unit, data acquisition unit, safeguard structure and falling rocks mobile mechanism, wherein：
The upper end of the test-bed is provided with slopes analogue unit, and the slopes analogue unit includes the different slope of several slope angles
Body, slopes top end are provided with the falling rocks mobile mechanism that stone is driven to be moved between different slopes, and the slopes bottom end is provided with
Safeguard structure is provided with data acquisition unit at safeguard structure, realizes impact force of the Rolling Stone for safeguard structure of setting slopes
Monitoring.
2. a kind of rockfall safeguard structure percussion lower stress monitoring model pilot system as described in claim 1,
It is characterized in：The falling rocks mobile mechanism includes the sliding rail being set on test-bed and the mobile platform moved along sliding rail, institute
It states and lifting regulating mechanism is provided on mobile platform, adjust the angle of inclination of mobile platform, discharge stone.
3. a kind of rockfall safeguard structure percussion lower stress monitoring model pilot system as described in claim 1,
It is characterized in：The mobile platform is moved along sliding rail, can reach the top of the slope position of each slopes.
4. a kind of rockfall safeguard structure percussion lower stress monitoring model pilot system as described in claim 1,
It is characterized in：The sliding rail moves on test-bed, can change vertical in slopes of sliding rail and translate up.
5. a kind of rockfall safeguard structure percussion lower stress monitoring model pilot system as described in claim 1,
It is characterized in：The slopes set different slope angles according to experimental design operating mode, and carry out placement in layers compacting with analog material.
6. a kind of rockfall safeguard structure percussion lower stress monitoring model pilot system as described in claim 1,
It is characterized in：The safeguard structure includes protection network and roll guard, and protection network is arranged in the middle part of slopes, certain apart from slopes slope foot
Roll guard is set at distance.
7. a kind of rockfall safeguard structure percussion lower stress monitoring model pilot system as claimed in claim 6,
It is characterized in：It is provided at the safeguard structure in stress and acceleration transducer Rolling Stone test specimen dropping process to protection network impact force
Monitoring and cross the Rolling Stone of protection network the impact force of roll guard monitored.
8. a kind of rockfall safeguard structure percussion lower stress monitoring model pilot system as claimed in claim 6,
It is characterized in：The protection network simulated respectively according to likelihood ratio selection steel wire, finer wire net and reinforcing bar true protection network drawstring,
Wire side and column；
Or, the roll guard selects the true roll guard of iron plate welding analog according to the likelihood ratio.
9. a kind of rockfall safeguard structure percussion lower stress monitoring model pilot system as described in claim 1,
It is characterized in：The slopes bottom is provided with railway bed；
Or, the railway bed pours into the true roadbed of cuboid block simulation using concrete blinding and is placed in Slope
Foot.
10. based on the method for work of system as claimed in any one of claims 1-9 wherein, it is characterized in that：Pilot system is built, is adjusted
Direction of the falling rocks on setting slopes vertical and horizontal is saved, and is discharged, rock-fall impact protection net surface and surge guard fence
During surface, monitoring element monitor by force information and vibration information and force analysis vibration regularity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711317168.5A CN108168822A (en) | 2017-12-12 | 2017-12-12 | Rockfall safeguard structure percussion lower stress monitoring model pilot system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711317168.5A CN108168822A (en) | 2017-12-12 | 2017-12-12 | Rockfall safeguard structure percussion lower stress monitoring model pilot system and method |
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| CN108168822A true CN108168822A (en) | 2018-06-15 |
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| CN201711317168.5A Pending CN108168822A (en) | 2017-12-12 | 2017-12-12 | Rockfall safeguard structure percussion lower stress monitoring model pilot system and method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956951A (en) * | 2018-07-31 | 2018-12-07 | 中国水利水电科学研究院 | Consider the experimental rig and test method of contact relation measurement falling rocks recovery coefficient |
| CN109300377A (en) * | 2018-10-23 | 2019-02-01 | 山东大学 | The rock-fall protection net pilot model apparatus of adjustable-angle |
| CN109612670A (en) * | 2018-12-07 | 2019-04-12 | 石家庄铁道大学 | A kind of protective net monitoring method, system and terminal device |
| CN110196147A (en) * | 2019-05-21 | 2019-09-03 | 西南交通大学 | A kind of multidimensional multidirectional and multifunctional joint shock table |
| CN110487449A (en) * | 2019-07-03 | 2019-11-22 | 南方科技大学 | A kind of real-time landslide monitoring system and method |
| CN110836962A (en) * | 2019-11-28 | 2020-02-25 | 石家庄铁道大学 | Simulation experiment device for dangerous rock falling caused by excavation cutting and use method thereof |
| CN111458216A (en) * | 2020-05-10 | 2020-07-28 | 兰州理工大学 | Test bed and test method for simulating impact action at any angle |
| CN112069672A (en) * | 2020-08-31 | 2020-12-11 | 山东省地质环境监测总站(山东省地质灾害防治技术指导中心) | Real-time correction calculation method for rolling stone track |
| CN112526101A (en) * | 2020-06-22 | 2021-03-19 | 华北水利水电大学 | Model test device and test method for measuring dynamic parameters of rolling stones |
| CN112924129A (en) * | 2021-03-16 | 2021-06-08 | 中铁西北科学研究院有限公司 | Multi-dimensional large-scale simulation test equipment for impact response of high-order dangerous rock protective structure |
| CN115343011A (en) * | 2022-10-17 | 2022-11-15 | 四川省公路规划勘察设计研究院有限公司 | Side slope rockfall impact interception test device |
| CN116466064A (en) * | 2023-06-20 | 2023-07-21 | 深圳市勘察研究院有限公司 | Dangerous rock damage unstability movement characteristic simulation test device |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108956951A (en) * | 2018-07-31 | 2018-12-07 | 中国水利水电科学研究院 | Consider the experimental rig and test method of contact relation measurement falling rocks recovery coefficient |
| CN109300377A (en) * | 2018-10-23 | 2019-02-01 | 山东大学 | The rock-fall protection net pilot model apparatus of adjustable-angle |
| CN109612670B (en) * | 2018-12-07 | 2021-02-02 | 石家庄铁道大学 | Protective net monitoring method, system and terminal equipment |
| CN109612670A (en) * | 2018-12-07 | 2019-04-12 | 石家庄铁道大学 | A kind of protective net monitoring method, system and terminal device |
| CN110196147A (en) * | 2019-05-21 | 2019-09-03 | 西南交通大学 | A kind of multidimensional multidirectional and multifunctional joint shock table |
| CN110487449A (en) * | 2019-07-03 | 2019-11-22 | 南方科技大学 | A kind of real-time landslide monitoring system and method |
| CN110836962A (en) * | 2019-11-28 | 2020-02-25 | 石家庄铁道大学 | Simulation experiment device for dangerous rock falling caused by excavation cutting and use method thereof |
| CN110836962B (en) * | 2019-11-28 | 2022-02-01 | 石家庄铁道大学 | Simulation experiment device for dangerous rock falling caused by excavation cutting and use method thereof |
| CN111458216A (en) * | 2020-05-10 | 2020-07-28 | 兰州理工大学 | Test bed and test method for simulating impact action at any angle |
| CN112526101A (en) * | 2020-06-22 | 2021-03-19 | 华北水利水电大学 | Model test device and test method for measuring dynamic parameters of rolling stones |
| CN112526101B (en) * | 2020-06-22 | 2024-02-09 | 华北水利水电大学 | Model test device and test method for measuring dynamic parameters of rolling stones |
| CN112069672A (en) * | 2020-08-31 | 2020-12-11 | 山东省地质环境监测总站(山东省地质灾害防治技术指导中心) | Real-time correction calculation method for rolling stone track |
| CN112924129A (en) * | 2021-03-16 | 2021-06-08 | 中铁西北科学研究院有限公司 | Multi-dimensional large-scale simulation test equipment for impact response of high-order dangerous rock protective structure |
| CN115343011A (en) * | 2022-10-17 | 2022-11-15 | 四川省公路规划勘察设计研究院有限公司 | Side slope rockfall impact interception test device |
| CN116466064A (en) * | 2023-06-20 | 2023-07-21 | 深圳市勘察研究院有限公司 | Dangerous rock damage unstability movement characteristic simulation test device |
| CN116466064B (en) * | 2023-06-20 | 2023-09-26 | 深圳市勘察研究院有限公司 | Dangerous rock damage unstability movement characteristic simulation test device |
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