CN202330047U - Experimental model for reflecting affection of vibration of subway operation on nearby pipelines - Google Patents
Experimental model for reflecting affection of vibration of subway operation on nearby pipelines Download PDFInfo
- Publication number
- CN202330047U CN202330047U CN2011205141332U CN201120514133U CN202330047U CN 202330047 U CN202330047 U CN 202330047U CN 2011205141332 U CN2011205141332 U CN 2011205141332U CN 201120514133 U CN201120514133 U CN 201120514133U CN 202330047 U CN202330047 U CN 202330047U
- Authority
- CN
- China
- Prior art keywords
- model
- tunnel
- pipeline
- vibration
- pipelines
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model discloses an experimental model for reflecting the affection of the vibration of subway operation on nearby pipelines, which comprises a model housing, a tunnel and pipelines; the tunnel runs through the model housing; a plurality of exciters are arranged on the bottom of the tunnel; and the pipelines and three reserved vibration pick-up holes are arranged over the tunnel. A plurality of vibration pick-ups are arranged in the pipelines and the reserved vibration pick-up holes. The included angled between greater than 0 degrees and less than 180 degrees with the tunnel. The model housing is 3.0m long, 0.4m wide and 2.0m high. Under the premise of following the similarity principle, the experimental model is a simplified model with conditions similar actual subway conditions and geological conditions. The experimental model can test the vibration response caused by subway operation and the affection on nearby pipelines in a lab, greatly decreases the difficulty and cost of an actual test, and increases the testing efficiency; and the experimental model disclosed by the utility model is major innovation and breakthrough for the conventional subway vibration response experiment.
Description
Technical field
The utility model relates to a kind of empirical model, relates in particular to a kind of metro operation that reflects and vibrates closing on the empirical model of pipeline influence, belongs to metro operation empirical model technical field.
Background technology
Pipeline is the pipeline that connects pump, valve or control system, and pipe engineering is the necessary component of municipal works.At present; Because subway plays more and more important effect in the transport process in city; Safer, comfortable based on the subway operation; Vibratory response during therefore to metro operation and the research of the influence of pipeline become a heat subject again in recent years, one of them major reason are greatly developing of urban subway traffic system and the people contradiction between the enhanced environmental quality mind day by day, become one of factor that decision-making section can not ignore gradually.The researcher is also many both at home and abroad carries out the vibration test of metro operation from actual detected, numerical simulation, the finite element method equal angles of subway, but all has certain limitation.Actual detected can not realize fully that most of subway line vibratory response detects, and detection difficulty is big, cost is high; Often there are bigger deviation in data that numerical simulation and finite element method obtain and real data.Therefore the science that needs a kind of empirical model to be correlated with detects, so that give correct guidance to the metro operation vibration to the research that closes on the pipeline influence.
The utility model content
For the weak point in addressing the above problem, the utility model provides a kind of and has reflected that the metro operation vibration is to closing on the empirical model of pipeline influence.
In order to solve above technical matters, the technical scheme that the utility model adopts is: a kind of metro operation that reflects vibrates closing on the empirical model of pipeline influence, comprises model framework, tunnel, pipeline, and tunneling is in model framework; The bottom in said tunnel is provided with a plurality of vibrators, and the top in tunnel is provided with pipeline and vibro-pickup preformed hole; The vibro-pickup preformed hole is three.
Be provided with a plurality of vibro-pickups in pipeline and the vibro-pickup preformed hole.One angle is arranged between pipeline and the tunnel, and angular range is less than 180 ° greater than 0 °.The length and width of model framework and height are respectively 3.0m, 0.4m and 2.0m.
The utility model is to follow under the prerequisite of the principle of similitude, to the simplified model of ironworker's condition and geologic condition similar situation practically.The vibratory response that the utility model causes in the time of can in the laboratory, accomplishing metro operation reaches the influence that closes on pipeline is detected, and greatly reduces the difficulty and the cost of actual detected, has improved detection efficiency; Also the data necessary support is provided simultaneously for methods such as numerical simulation and finite element methods.Subway vibrates (response) empirical model huge subway system is introduced the laboratory, is a big innovation and the breakthrough to present subway vibratory response experiment.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the diagrammatic cross-section of the pipeline and the tunnel angle of the utility model
Among the figure: 1. tunnel; 2. vibrator; 3. vibro-pickup; 4. pipeline and tunnel angle; 5. pipeline; 6. model framework; 7. vibro-pickup preformed hole.
Embodiment
Like Fig. 1, shown in Figure 2, the utility model comprises angle 4, pipeline 5, model framework 6, the vibro-pickup preformed hole 7 between tunnel 1, vibrator 2, vibro-pickup 3, pipeline and tunnel.Tunnel 1 penetration model framework 6, the bottom in tunnel 1 is provided with a plurality of vibrators 2; The top in tunnel 1 is provided with the pipeline 5 that has certain angle with the tunnel; Be provided with three vibro-pickup preformed holes 7 in the different medium of 1 top, tunnel, and in vibro-pickup preformed hole 7 and pipeline 5, be provided with a plurality of vibro-pickups 3.Pipeline can specifically adjusted between 180 ° greater than 0 ° according to different operating modes with tunnel angle 4.
Through calculating and principle of similitude theoretical analysis, construct the general frame size of model, length * wide * height=3.0m * 0.4m * 2.0m, and confirm rational ratio of similitude.Investigate through engineering geology, confirm the rock soil medium distribution situation of survey region.Confirm the proportioning of heterogeneity in model according to the principle of similitude.For detecting vibratory response situation in the test model, in vibro-pickup preformed hole 7, carry out the layout of rational vibro-pickup 3 in advance according to certain rule, propagate and attenuation law in order to vibration wave (response) in the determination test model.Wherein, vibro-pickup can record the parameter such as speed, acceleration, displacement of measuring point; Pipeline 5 is as the carrier of vibro-pickup 3, and pipeline 5 has the effect that reduces vibro-pickup 3 detection measuring point vibration situation errors simultaneously.Propose four groups of fixed vibro-pickups in the empirical model, distribution situation is as shown in Figure 1, can more comprehensively detect the vibratory response regularity of distribution that metro operation causes and to closing on the situation that influences of pipeline.Fill empirical model according to the rock soil medium regularity of distribution of survey region and the heterogeneity proportioning of having confirmed, and lay the underground utilities that have vibro-pickup therein.According to set ratio of similitude, in the empirical model that filling finishes, abide by the operating mode of survey region and excavate out subway tunnel and do suitable operating environment simulation.Derive through great amount of calculation and rational theoretical model, the subway tunnel in the empirical model is carried out the layout of rational vibrator 2, the Changing Pattern of vibratory response when realizing the vibratory response simulation that metro operation causes and obtaining metro operation according to certain rule.Vibrator 2 changes in order to realize the vibration that the simulation metro operation causes; Simulating signal according to metro operation vibration Changing Pattern; Vibrator 2 is carried out regular excitation intensity control; And then obtain testing result through vibro-pickup, realize and accomplish simulation metro operation vibratory response and to closing on the test experience of pipeline influence.
Claims (4)
1. one kind reflects that the metro operation vibration to closing on the empirical model of pipeline influence, comprises model framework, tunnel, pipeline, and it is characterized in that: said tunneling is in model framework; The bottom in said tunnel is provided with a plurality of vibrators, and the top in tunnel is provided with pipeline and vibro-pickup preformed hole; The vibro-pickup preformed hole is three.
2. reflection metro operation vibration according to claim 1 is characterized in that: be provided with a plurality of vibro-pickups in said pipeline and the vibro-pickup preformed hole closing on the empirical model of pipeline influence.
3. reflection metro operation vibration according to claim 1 is to closing on the empirical model of pipeline influence, and it is characterized in that: it is less than 180 ° greater than 0 ° that an angle, angular range are arranged between said pipeline and the tunnel.
4. reflection metro operation vibration according to claim 1 is to closing on the empirical model of pipeline influence, and it is characterized in that: the length and width of said model framework and height are respectively 3.0m, 0.4m and 2.0m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205141332U CN202330047U (en) | 2011-12-12 | 2011-12-12 | Experimental model for reflecting affection of vibration of subway operation on nearby pipelines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205141332U CN202330047U (en) | 2011-12-12 | 2011-12-12 | Experimental model for reflecting affection of vibration of subway operation on nearby pipelines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202330047U true CN202330047U (en) | 2012-07-11 |
Family
ID=46442025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205141332U Expired - Fee Related CN202330047U (en) | 2011-12-12 | 2011-12-12 | Experimental model for reflecting affection of vibration of subway operation on nearby pipelines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202330047U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510558A (en) * | 2016-01-28 | 2016-04-20 | 同济大学 | Simulation testing device used for simulating karst collapse caused by underground vibration of karst terrain |
| CN109030033A (en) * | 2018-06-21 | 2018-12-18 | 浙江大学城市学院 | A kind of experimental rig for simulating two-wire Subway Train Operation in Existed Subway operating condition |
| CN109030034A (en) * | 2018-06-21 | 2018-12-18 | 浙江大学城市学院 | A kind of experimental rig of simulation two-wire metro operation vibration |
| CN109827788A (en) * | 2019-01-18 | 2019-05-31 | 中国矿业大学(北京) | A kind of proximity subway supporting simulator and application method |
-
2011
- 2011-12-12 CN CN2011205141332U patent/CN202330047U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510558A (en) * | 2016-01-28 | 2016-04-20 | 同济大学 | Simulation testing device used for simulating karst collapse caused by underground vibration of karst terrain |
| CN109030033A (en) * | 2018-06-21 | 2018-12-18 | 浙江大学城市学院 | A kind of experimental rig for simulating two-wire Subway Train Operation in Existed Subway operating condition |
| CN109030034A (en) * | 2018-06-21 | 2018-12-18 | 浙江大学城市学院 | A kind of experimental rig of simulation two-wire metro operation vibration |
| CN109827788A (en) * | 2019-01-18 | 2019-05-31 | 中国矿业大学(北京) | A kind of proximity subway supporting simulator and application method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102879800B (en) | Method for detecting shear-wave splitting fracture | |
| CN104199090B (en) | A kind of rate pattern of ground monitoring microseism positioning builds and method for solving | |
| CN105093274B (en) | The inversion method and system of a kind of hydraulically created fracture focal mechanism | |
| CN1975112A (en) | Shield tunnel subsidence control method based on exploring radar | |
| CN202330047U (en) | Experimental model for reflecting affection of vibration of subway operation on nearby pipelines | |
| CN110287511B (en) | Pile foundation type selection and construction quality control method based on BIM technology | |
| Song et al. | A new modified Peck formula for predicting the surface settlement based on stochastic medium theory | |
| CN103645505B (en) | A kind of method of development degree of micro cracks in oil in quantitative detection stratum | |
| Chen et al. | Study on the application of a comprehensive technique for geological prediction in tunneling | |
| CN101581223B (en) | Method for detecting slip casting effect of tunnel | |
| CN106908837A (en) | A kind of fracturing fracture form and fracture height determine method | |
| Zhang et al. | Excavation-induced structural deterioration of rock masses at different depths | |
| CN105626056A (en) | Method and device for determining three-dimensional stratum pore pressure of target area | |
| CN104570070A (en) | Method and equipment for building two-dimensional near-surface geological model | |
| CN206091981U (en) | Rock natural frequency tester in shale gas well | |
| CN104297796A (en) | Short-refraction investigation method for undulating surface of terrain high-variability area in ultra-thick loess highland | |
| Dong et al. | Application of long-range cross-hole acoustic wave detection Technology in geotechnical engineering detection: case studies of tunnel-surrounding rock, foundation and subgrade | |
| Wei et al. | Stability analysis of fractured rock mass around underground excavations based on a three-dimensional discrete fracture network | |
| CN104636576A (en) | Rapid subway construction risk evaluation method based on weighted average method | |
| CN104297786A (en) | Method and device for detecting stratum fracture strike azimuth | |
| CN211478164U (en) | Columnar joint basalt anisotropy quantitative test structure | |
| CN111538073A (en) | Advanced geological forecast detection simulation device and method for tunnel poor geologic body | |
| CN112748476B (en) | Injection fluid front edge identification method based on stress field and microseism joint inversion | |
| CN102507905A (en) | Test method for detecting interlayer-containing salt cavity expansion process by using ultrasound wave | |
| CN104636511A (en) | Rapid subway construction risk evaluation method based on Dasarathy model |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141212 |
|
| EXPY | Termination of patent right or utility model |