CN108680948A - Hydraulic servocontrol earthquake wave generating apparatus and its working method - Google Patents
Hydraulic servocontrol earthquake wave generating apparatus and its working method Download PDFInfo
- Publication number
- CN108680948A CN108680948A CN201810299029.2A CN201810299029A CN108680948A CN 108680948 A CN108680948 A CN 108680948A CN 201810299029 A CN201810299029 A CN 201810299029A CN 108680948 A CN108680948 A CN 108680948A
- Authority
- CN
- China
- Prior art keywords
- wave
- actuator
- shear
- generating means
- wave generating
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/02—Generating seismic energy
- G01V1/133—Generating seismic energy using fluidic driving means, e.g. highly pressurised fluids; using implosion
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
Hydraulic servocontrol earthquake wave generating apparatus and its working method, including shear wave generating means and longitudinal wave generating means, contacting to earth for shear wave generating means are equipped with shock-absorption air bag with holder equipped with shear wave actuator between plate and bearing plate；Displacement sensor is built in shear wave actuator；One end is equipped with pressure sensor；The plate that contacts to earth is equipped with holder, is above fixed with guide rail；Longitudinal wave generating means, which contacts to earth, is equipped with longitudinal wave actuator between plate and bearing plate, displacement sensor is built in longitudinal wave actuator；One end is equipped with pressure sensor；Bearing plate is fixed in counter-force stake, is inserted into ground and is provided counter-force for longitudinal wave actuator；Shear wave and longitudinal wave generating means are all made of hydraulic power source, and actuator, pressure sensor, displacement sensor are connected on computer, and hydraulic power source is controlled by computer.The present invention can generate the seismic wave of stable and big energy and generate different wave seismic wave as needed, can provide pressure control and the two different seismic wave control modes of Bit andits control.
Description
Technical field
The present invention relates to a kind of earthquake wave generating apparatus, and in particular to a kind of hydraulic servocontrol earthquake wave generating apparatus.
The invention further relates to the working methods of this hydraulic servocontrol earthquake wave generating apparatus.
Background technology
Seismic wave includes mainly longitudinal wave and shear wave, and not only transmission capacity is strong for seismic wave, also has reflectivity and refractiveness etc.
Feature, and Rock And Soil is mostly stratification distribution, and each layer utilizes seismic wave correlation theories knowledge solution to PROPAGATION CHARACTERISTICS OF SEISMIC difference
Certainly Rock And Soil problem has very strong feasibility, therefore seismic wave is widely used in geotechnical engineering and physical prospecting engineering, especially
It is on-the-spot test experiment.Application of the seismic wave in engineering can not only be promoted by generating the seismic wave that stability is strong, controllability is high,
It can also solve the problems, such as correlation engineering, thus the development of earthquake wave generating apparatus has very big meaning.
Manual type is mostly used at present or blasting method generates seismic wave.Manual type is mainly that man-hour manually hand-held taps hammer
It taps ground and generates seismic wave, or using heavy impact ground, seismic wave is generated with the mode that ground collides.Explosion side
Formula is mainly generated by explosions means such as spark source, air gun, earthquake gun focus, impact origin and dynamite sources
Seismic wave.But the seismic wave that manual type generates has that energy is small, seismic wave waveform is unstable, poor repeatability, explosion
The seismic wave that mode generates there are it is complicated for operation, dangerous big the problems such as.Both seismic wave generation methods can not incorporation engineering
Need to generate that energy is big, stability is strong, repeatable strong, safe seismic wave.
Invention content
The invention discloses a kind of hydraulic servocontrol earthquake wave generators, and pressure control and Bit andits control two may be selected
Kind of pattern carries out vibration control, can control vibration frequency, at the same can also select according to demand sine wave, cosine wave, square wave,
The different types of longitudinal wave such as random wave and shear wave, solve that the seismic wave energy that existing earthquake generating means occurs is small, stability weight
The disadvantages such as renaturation is poor, safety is low have established more solid experiment base in geotechnical engineering and physical prospecting engineer application for seismic wave
Plinth.The present invention will also disclose the working method of this hydraulic servocontrol earthquake wave generating apparatus.
The technical solution for completing foregoing invention task is a kind of hydraulic servocontrol earthquake wave generating apparatus, including shear wave
Generating means and longitudinal wave generating means, which is characterized in that the shear wave generating means contact to earth between plate and bearing plate be equipped with subtract
Shake air bag and actuator fixing bracket；Shear wave actuator is equipped on actuator fixing bracket；Displacement sensor is built in the cross
In wave actuator；One end of the shear wave actuator is equipped with pressure sensor；The plate that contacts to earth is equipped with guide fixing bracket, should
Guide rail is fixed on guide fixing bracket；Contacting to earth for the longitudinal wave generating means is equipped with longitudinal wave actuator between plate and bearing plate,
Displacement sensor is built in the longitudinal wave actuator；One end of the longitudinal wave actuator is equipped with pressure sensor；The bearing plate is solid
It is scheduled in counter-force stake, which is inserted into ground, and counter-force is provided for longitudinal wave actuator；Shear wave generating means and longitudinal wave fill
It sets and is all made of hydraulic power source and provides hydraulic pressure for shear wave actuator, longitudinal wave actuator, by data line by shear wave actuator, longitudinal wave start
Device, pressure sensor, displacement sensor are connected on computer, and hydraulic power source is controlled by computer, according to different wave from it is different
The output-index for needing to change hydraulic pressure of vibration frequency.
In the present invention, the shear wave generating means is mainly for generation of shear wave, including actuator, pressure sensor, displacement
Sensor, the plate that contacts to earth, shock-absorption air bag, bearing plate, guide rail；The longitudinal wave generating means is mainly for generation of longitudinal wave, including start
Device, pressure sensor, displacement sensor, the plate that contacts to earth, bearing plate and counter-force stake.
Longitudinal wave and shear wave generating means provided by the invention can be used for that longitudinal wave and shear wave occurs, and solve raw wave apparatus at present
It is unstable, energy is small, it is repeatable difference the problems such as, the differences such as sine wave, cosine wave, square wave, random wave can be generated as needed
The waveform of type, while vibration frequency can be controlled, largely meet the needs of engineering is to seismic wave.
Hydraulic servocontrol earthquake wave generating apparatus is shown in Fig. 1-a, Fig. 1-b, Fig. 1-c and Fig. 2-a, Fig. 2-b, Fig. 2-c, packet
Include shear wave generating means, longitudinal wave generating means.
Shear wave generating means 1 includes actuator 101, pressure sensor 102, displacement sensor 103, actuator fixing bracket
104, shock-absorption air bag 105, guide rail 106, guide fixing bracket 109, the plate 107 that contacts to earth, bearing plate 108, built in displacement sensor 103
In actuator 101.
Longitudinal wave generating means 2 includes actuator 201, pressure sensor 202, displacement sensor 203, contact to earth plate 204, counter-force
Stake 205, bearing plate 206, displacement sensor 203 are built in actuator 201.
Completing the technical solution of second invention task of the application is, above-mentioned hydraulic servocontrol earthquake wave generating apparatus
Working method, which is characterized in that steps are as follows：
The work step of shear wave generating means：
(2) the needs that .. is tested according to on-the-spot test in geotechnical engineering and physical prospecting engineering, determine the control model and waveform of seismic wave；
(2) the control model and waveform control hydraulic power source that (1). computers are determined according to step export different wave and different vibrations frequency
The hydraulic pressure of rate gives shear wave actuator；
(3) shear waves actuator does the stretching motion of respective waveforms in different wave under the hydraulic pressure of different vibration frequencies；
(4) shear waves actuator is rigidly connected with actuator bearing, and shear wave actuator drives actuator bearing to do stretching motion；
(5) shear waves actuator bearing drives the plate that contacts to earth to do stretching motion；
Finally contact to earth plate generate stretching motion generate respective waveforms shear wave；
Shear waves actuator, pressure sensor, displacement sensor exercise data by data line Real-time Feedback to computer；
(8) feedback of the computers according to step (7), the further control model for adjusting hydraulic power source and waveform and vibration frequency；
The work step of longitudinal wave generating means：
The needs tested according to on-the-spot test in geotechnical engineering and physical prospecting engineering, determine the control model and waveform of seismic wave；
The control model and waveform control hydraulic power source that (1) computer is determined according to step export different wave and different vibrations
The hydraulic pressure of frequency gives longitudinal wave actuator；
Longitudinal wave actuator does the stretching motion of respective waveforms in different wave under the hydraulic pressure of different vibration frequencies；
Longitudinal wave actuator and plate rigid connection of contacting to earth, longitudinal wave actuator drive the plate that contacts to earth to do stretching motion；
Contact to earth panel vibration ground make ground generate respective waveforms longitudinal wave；
It is rigidly connected with bearing plate at the top of longitudinal wave actuator, longitudinal wave actuator transmits the force to bearing plate；
Bearing plate is rigidly connected with counter-force stake, and power is transmitted to counter-force stake by bearing plate；
Counter-force stake is fixed on ground, and counter-force is provided for longitudinal wave actuator；
Longitudinal wave actuator, pressure sensor, displacement sensor exercise data by data line Real-time Feedback to computer；
Computer is according to stepFeedback, further adjust the control model and waveform and vibration frequency of hydraulic power source.
The work step of above-mentioned shear wave generating means in no particular order, is set as required with the work step of longitudinal wave generating means
It is fixed.
Above-mentioned steps (5) with step (6) in, the plate that contacts to earth occur stretching motion when carried out along guide rail, ensure that contact to earth plate fortune
Dynamic stability.
In the work step of above-mentioned shear wave generating means, in order to ensure the stability of vibration of shear wave generating means, it should combine
The load of corresponding weight is arranged in actual needs on bearing plate.
In the work step of above-mentioned longitudinal wave generating means, in order to ensure that counter-force is sufficiently large, it can held in conjunction with actual conditions
The load of corresponding weight is set on pressing plate.
The effect and advantage of the present invention：It is possessed excellent compared with enumerating the technology technology that you know relative to this field
Point and effect, as far as possible multiple row some.May be used the technology and other technologies mutually compared with method write exactly.
1, the present invention can generate the seismic wave of stable and big energy.
2, the present invention can generate the different waves seismic wave such as sine wave, cosine wave, square wave, random wave as needed.
3, the present invention can provide pressure control and the two different seismic wave control modes of Bit andits control.
4, it is the seismic wave within the scope of 0-5Hz that the present invention, which can provide controllable frequency,.
Description of the drawings
Fig. 1-a, Fig. 1-b, Fig. 1-c are respectively vertical view, front view and the side view in shear wave generating means structural schematic diagram
Figure；
Fig. 2-a, Fig. 2-b, Fig. 2-c are respectively vertical view, front view and the side view in longitudinal wave generating means structural schematic diagram.
Specific implementation mode
Embodiment 1, hydraulic servocontrol earthquake wave generating apparatus, with reference to attached drawing：It is sent out including shear wave generating means and longitudinal wave
Generating apparatus, contacting to earth for the shear wave generating means are equipped with shock-absorption air bag and actuator fixing bracket between plate and bearing plate；Making
Dynamic device fixing bracket is equipped with actuator；Displacement sensor is built in the actuator；One end of the actuator is passed equipped with pressure
Sensor；The plate that contacts to earth is equipped with guide fixing bracket, and guide rail is fixed on the guide fixing bracket；Hydraulic power source is used to make
Dynamic device provides hydraulic pressure, and actuator, pressure sensor, displacement sensor are connected on computer by data line；Hydraulic power source by
Computer controls, according to the output-index for needing to change hydraulic pressure of different wave and different vibration frequencies.
Operating process：
Shear wave generating means 1, with reference to attached drawing 1-a, Fig. 1-b, Fig. 1-c：
Hydraulic power source is used to provide hydraulic pressure for shear wave actuator 101, by data line by actuator 101, pressure sensor 102, position
Displacement sensor 103 is connected on computer.One in pressure control or Bit andits control both of which is selected by computer,
Then one in the waveforms such as vibration frequency, then sine wave, cosine wave, square wave, the random wave of optional test use is selected.When adopting
When being controlled with pressure, 101 mating reaction of pressure sensor 202 and shear wave actuator so that actuator 201 generates respective waveforms
Stretching motion.When using Bit andits control, 101 mating reaction of displacement sensor 103 and actuator so that actuator 201 generates
The stretching motion of respective waveforms.
After control model and waveform determine, computer control shear wave actuator 101 does the stretching motion of respective waveforms,
Shear wave actuator 101 has just connect with actuator bearing 104, and shear wave actuator 101 drives actuator bearing 104 to do stretching motion, makees
Dynamic device bearing 104 has just connect with the plate 107 that contacts to earth, and actuator bearing 104 drives the plate 107 that contacts to earth to do stretching motion, while guide rail with holes
Bearing 109 has just connect with the plate 107 that contacts to earth, guide rail 106 pass through guide rail bearing 109 with holes, the plate 107 that contacts to earth occur stretching motion when along
Guide rail 106 carries out, and ensure that the stability for the movement of plate 107 of contacting to earth, the plate 107 that finally contacts to earth generate stretching motion and generates respective waveforms
Shear wave.In order to ensure the stability of vibration of shear wave generating means 1, should be arranged accordingly on bearing plate 108 in conjunction with actual needs
The load of weight.
Longitudinal wave generating means 2, with reference to attached drawing 2-a, Fig. 2-b, Fig. 2-c:
Hydraulic power source is used to provide hydraulic pressure for actuator 201, by data line by longitudinal wave actuator 201, pressure sensor 202, position
Displacement sensor 203 is connected to computer.Pressure control mode or displacement control mode are selected by computer, then selectes difference
Vibration frequency, reselection waveform has the different waves such as sine wave, cosine wave, square wave, random wave that can select.
After being controlled using pressure and selecting waveform, pressure sensor 202 and the cooperation of longitudinal wave actuator 201 are so that longitudinal wave is made
Dynamic device 201 generates the stretching motion of respective waveforms.After using Bit andits control and selected waveform, displacement sensor 203 and start
Device 201 coordinates so that actuator 201 generates the stretching motion of respective waveforms.After control model and waveform are selected, computer control
Longitudinal wave actuator 201 does the stretching motion of respective waveforms, and longitudinal wave actuator 201 has just connect with the plate 204 that contacts to earth, longitudinal wave actuator 201
The drive plate 204 that contacts to earth does stretching motion, and the plate 204 that contacts to earth vibration ground makes ground generate the longitudinal waves of respective waveforms.Actuator 201 is pushed up
Portion has just connect with bearing plate 206, and longitudinal wave actuator 201 transmits the force to bearing plate 206, and bearing plate 206 has just connect with counter-force stake 205,
Power is transmitted to counter-force stake 205 by bearing plate, and counter-force stake 205 is fixed on ground, and counter-force is provided for longitudinal wave actuator 201.In order to ensure
Counter-force is sufficiently large, and the load of corresponding weight can be arranged on bearing plate 206 in conjunction with actual conditions.
Claims (9)
1. a kind of hydraulic servocontrol earthquake wave generating apparatus, including shear wave generating means and longitudinal wave generating means, feature exist
In contacting to earth for the shear wave generating means is equipped with shock-absorption air bag and actuator fixing bracket between plate and bearing plate；In actuator
Fixing bracket is equipped with shear wave actuator；Displacement sensor is built in the shear wave actuator；One end of the shear wave actuator is set
There is pressure sensor；The plate that contacts to earth is equipped with guide fixing bracket, and guide rail is fixed on the guide fixing bracket；It is described vertical
Contacting to earth for wave generating device is equipped with longitudinal wave actuator between plate and bearing plate, displacement sensor is built in the longitudinal wave actuator；
One end of the longitudinal wave actuator is equipped with pressure sensor；The bearing plate is fixed in counter-force stake, which is inserted into ground,
Counter-force is provided for longitudinal wave actuator；It is shear wave actuator, longitudinal wave that shear wave generating means and longitudinal wave generating means, which are all made of hydraulic power source,
Actuator provides hydraulic pressure, is connected to shear wave actuator, longitudinal wave actuator, pressure sensor, displacement sensor by data line
On computer, hydraulic power source is controlled by computer, is referred to from the output for needing change hydraulic pressure of different vibration frequencies according to different wave
Mark.
2. hydraulic servocontrol earthquake wave generating apparatus according to claim 1, which is characterized in that the shear wave fills
The plate that contacts to earth set occurs to carry out along guide rail when stretching motion.
3. hydraulic servocontrol earthquake wave generating apparatus according to claim 1, which is characterized in that the shear wave fills
The load of corresponding weight is provided on the bearing plate set.
4. the hydraulic servocontrol earthquake wave generating apparatus according to one of claim 1-3, which is characterized in that the longitudinal wave
The load of corresponding weight is provided on the bearing plate of generating means.
5. the working method of hydraulic servocontrol earthquake wave generating apparatus described in claim 1, which is characterized in that step is such as
Under：
The work step of shear wave generating means：
(1) the needs that is tested according to on-the-spot test in geotechnical engineering and physical prospecting engineering, determine the control model and waveform of seismic wave；
(2) the control model and waveform control hydraulic power source that (1). computers are determined according to step export different wave and different vibrations frequency
The hydraulic pressure of rate gives shear wave actuator；
(3) shear waves actuator does the stretching motion of respective waveforms in different wave under the hydraulic pressure of different vibration frequencies；
(4) shear waves actuator is rigidly connected with actuator bearing, and shear wave actuator drives actuator bearing to do stretching motion；
(5) shear waves actuator bearing drives the plate that contacts to earth to do stretching motion,
Finally contact to earth plate generate stretching motion generate respective waveforms shear wave；
Shear waves actuator, pressure sensor, displacement sensor exercise data by data line Real-time Feedback to computer；
(8) feedback of the computers according to step (7), the further control model for adjusting hydraulic power source and waveform and vibration frequency；
The work step of longitudinal wave generating means：
The needs tested according to on-the-spot test in geotechnical engineering and physical prospecting engineering, determine the control model and waveform of seismic wave；
The control model and waveform control hydraulic power source that (1) computer is determined according to step export different wave and different vibrations frequency
The hydraulic pressure of rate gives longitudinal wave actuator；
Longitudinal wave actuator does the stretching motion of respective waveforms in different wave under the hydraulic pressure of different vibration frequencies；
Longitudinal wave actuator and plate rigid connection of contacting to earth, longitudinal wave actuator drive the plate that contacts to earth to do stretching motion；
Contact to earth panel vibration ground make ground generate respective waveforms longitudinal wave；
It is rigidly connected with bearing plate at the top of longitudinal wave actuator, longitudinal wave actuator transmits the force to bearing plate；
Bearing plate is rigidly connected with counter-force stake, and power is transmitted to counter-force stake by bearing plate；
Counter-force stake is fixed on ground, and counter-force is provided for longitudinal wave actuator；
Longitudinal wave actuator, pressure sensor, displacement sensor exercise data by data line Real-time Feedback to computer；
Computer is according to stepFeedback, further adjust the control model and waveform and vibration frequency of hydraulic power source.
6. the working method of hydraulic servocontrol earthquake wave generating apparatus according to claim 5, which is characterized in that above-mentioned
The work step of shear wave generating means in no particular order, is set as required with the work step of longitudinal wave generating means.
7. the working method of hydraulic servocontrol earthquake wave generating apparatus according to claim 5, which is characterized in that described
Step (5) with step (6) in, the plate that contacts to earth occur stretching motion when carried out along guide rail.
8. the working method of hydraulic servocontrol earthquake wave generating apparatus according to claim 5, which is characterized in that shear wave
In the work step of generating means, the load of corresponding weight is set on bearing plate.
9. the working method of the hydraulic servocontrol earthquake wave generating apparatus according to one of claim 5-8, feature exist
In in the work step of the longitudinal wave generating means, the load of corresponding weight is provided on bearing plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711400258 | 2017-12-22 | ||
| CN2017114002580 | 2017-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108680948A true CN108680948A (en) | 2018-10-19 |
Family
ID=63800658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810299029.2A Pending CN108680948A (en) | 2017-12-22 | 2018-04-04 | Hydraulic servocontrol earthquake wave generating apparatus and its working method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108680948A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110058296A (en) * | 2019-05-31 | 2019-07-26 | 西南石油大学 | A kind of shear wave earthquake signal excitation device of linear motor driving |
| CN111307836A (en) * | 2019-12-10 | 2020-06-19 | 西南石油大学 | PE pipe performance testing device under seismic wave load |
| CN112147672A (en) * | 2019-06-28 | 2020-12-29 | 中国石油天然气集团有限公司 | Transverse wave source vibrator and vibration system for exciting transverse waves |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11160448A (en) * | 1997-11-26 | 1999-06-18 | Chikyu Kagaku Sogo Kenkyusho:Kk | In-pit man-made seismic center device |
| CN2766251Y (en) * | 2005-02-03 | 2006-03-22 | 浙江大学 | Hydraulic bag type controllable epicenter device |
| CN203250463U (en) * | 2013-05-27 | 2013-10-23 | 苏州创捷传媒展览股份有限公司 | Experience device for simulating earthquake |
| CN206863234U (en) * | 2017-04-27 | 2018-01-09 | 山东省地震局 | Earthquake simulation test experience platform |
| CN107560928A (en) * | 2016-06-30 | 2018-01-09 | 哈尔滨卓晋科技有限公司 | A kind of Based on Electro-hydraulic Loading Servo System data acquistion and control system |
-
2018
- 2018-04-04 CN CN201810299029.2A patent/CN108680948A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11160448A (en) * | 1997-11-26 | 1999-06-18 | Chikyu Kagaku Sogo Kenkyusho:Kk | In-pit man-made seismic center device |
| CN2766251Y (en) * | 2005-02-03 | 2006-03-22 | 浙江大学 | Hydraulic bag type controllable epicenter device |
| CN203250463U (en) * | 2013-05-27 | 2013-10-23 | 苏州创捷传媒展览股份有限公司 | Experience device for simulating earthquake |
| CN107560928A (en) * | 2016-06-30 | 2018-01-09 | 哈尔滨卓晋科技有限公司 | A kind of Based on Electro-hydraulic Loading Servo System data acquistion and control system |
| CN206863234U (en) * | 2017-04-27 | 2018-01-09 | 山东省地震局 | Earthquake simulation test experience platform |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110058296A (en) * | 2019-05-31 | 2019-07-26 | 西南石油大学 | A kind of shear wave earthquake signal excitation device of linear motor driving |
| CN112147672A (en) * | 2019-06-28 | 2020-12-29 | 中国石油天然气集团有限公司 | Transverse wave source vibrator and vibration system for exciting transverse waves |
| CN111307836A (en) * | 2019-12-10 | 2020-06-19 | 西南石油大学 | PE pipe performance testing device under seismic wave load |
| CN111307836B (en) * | 2019-12-10 | 2022-04-15 | 西南石油大学 | PE pipe performance testing device under seismic wave load |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108680948A (en) | Hydraulic servocontrol earthquake wave generating apparatus and its working method | |
| Tsouvalas et al. | A three-dimensional vibroacoustic model for the prediction of underwater noise from offshore pile driving | |
| CN106770658B (en) | Shear wave propagation and joint dynamic shear experimental system based on plane fluctuation | |
| CN105675319B (en) | Simulation tunnel passes through the displacement synchronous control device and test method of active fault | |
| MY184038A (en) | System and method to create three-dimensional images of non-linear acoustic properties in a region remote from a borehole | |
| CN102539650A (en) | Photodetection mechanics test device for simulating deep rock explosion cracking | |
| CN102662041B (en) | Vibration simulation system for model experiments | |
| Li et al. | Application of coupled analysis methods for prediction of blast-induced dominant vibration frequency | |
| Liao et al. | Experimental verification of the percussive drilling model | |
| Cao et al. | Analytical and experimental studies on nonlinear characteristics of an L-shape beam structure | |
| Blair | Approximate models of blast vibration in non-isotropic rock masses | |
| CN103234806B (en) | A kind of Low-gravity environmental simulation test device | |
| Gómez et al. | Energy flux analysis for quantification of vibratory pile driving efficiency | |
| Chiaradonna et al. | Dynamic Behavior of Uniform Clean Sands: Evaluation of Predictive Capabilities in the Element-and the System-Level Scale | |
| Yang et al. | Dynamic behavior of road high cutting rock slope under the influence of blasting for excavation | |
| US9239220B2 (en) | Determination of near surface geophyscial properties by impulsive displacement events | |
| CN202548122U (en) | Shock simulation system for model test | |
| Chang et al. | A study on lateral transient vibration of large diameter piles considering pile-soil interaction | |
| Shao et al. | Real-time dynamic hybrid testing using force-based substructuring | |
| Cui et al. | Study on Blasting Characteristics of Soft‐Hard Rock Strata Based on Energy Fields and Particle Expansion Loading Algorithm | |
| Denisova et al. | Geomechanical model of the pneumatic borer and soil interaction | |
| Park et al. | Recent development of borehole seismic tests | |
| Seo et al. | Experimental evaluation of percussion performance for rock-drill drifter | |
| CN203054233U (en) | Light-duty air pressure-type shallow water area seismic wave automatic trigger | |
| Ren et al. | Analysis and research on the constant-rate penetration mechanism of the seabed cone penetration test system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181019 |
|
| WD01 | Invention patent application deemed withdrawn after publication |