CN107085637A - A kind of analysis system of rock-soil material nonlinear characteristic - Google Patents
A kind of analysis system of rock-soil material nonlinear characteristic Download PDFInfo
- Publication number
- CN107085637A CN107085637A CN201710248453.XA CN201710248453A CN107085637A CN 107085637 A CN107085637 A CN 107085637A CN 201710248453 A CN201710248453 A CN 201710248453A CN 107085637 A CN107085637 A CN 107085637A
- Authority
- CN
- China
- Prior art keywords
- modulus
- curve
- mrow
- model
- rock
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
- G06F17/141—Discrete Fourier transforms
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Mathematical Analysis (AREA)
- Data Mining & Analysis (AREA)
- Pure & Applied Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Optimization (AREA)
- Computational Mathematics (AREA)
- Geometry (AREA)
- Discrete Mathematics (AREA)
- Evolutionary Computation (AREA)
- Algebra (AREA)
- Computer Hardware Design (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The present invention relates to a kind of analysis system of rock-soil material nonlinear characteristic, the system includes modulus and declines model construction system, the modulus decline model construction system of amendment and analysis system；The modulus declines model system and carries out the structure that modulus declines model through the following steps：Observation data are obtained, the average iodine spectral curve in place is drawn, calculates modulus decreasing ratio and strain rate, draw modulus decreasing ratio curve, obtain modulus and decline model；The modulus of the amendment declines the modulus decline model construction that model system is modified through the following steps：Amendment modulus decreasing ratio curve is modified using hyperbolic model, the modulus corrected declines model；The modulus that the analysis system is configured to, with amendment declines the system that model carries out rock-soil material linear Characteristics.
Description
Technical field
The invention belongs to the technical field of Geotechnical Engineering, more particularly to a kind of analysis system of rock-soil material nonlinear characteristic
System.
Background technology
In recent years, complex site rock-soil material Seismic response analysis is seismology, earthquake engineering and ground
Research direction very active in engineering is shaken, while being also the problem of being paid special attention to during earthquake resistant engineering is designed and constructed.Many destructions
Property earthquake in all embodied the non-linear material impact to earthquake motion of place rock-soil material, the Loma of such as 1989 years
Prieta earthquakes, the Japan Kobe earthquake of nineteen ninety-five.
In engineer applied, pay special attention to the non-linear effects of Site Soil, i.e., it is determined that during Site Design ground motion parameter,
Consider site category and Earthquake Intensity.In the prior art, different regulations is used in earthquake resistant design code both domestic and external
To consider the rock-soil material non-linear influence to building in place in earthquake.Become for example, the U.S. is generally utilized with Earthquake Intensity
The Ground coefficientk Fa and Fv of change describes the influence of different place mound seismologic parameters；China is then to consider that Ground motion response spectrum is special
Cycle T g is levied with the increase of earthquake motion peak acceleration to consider the non-linear effects of place rock-soil material.
At present, Site Soil nonlinear analysis models mainly include two classes:One class is to reduce the indoor model examination of field seismic
The indoor model of middle reduction field seismic is tested, another kind of is the nonlinear transfer function width in live drilling well array on-the-ground test
Frequency characteristic model.However, all there is clearly disadvantageous and defect in both the above model.Wherein, in the interior of reduction field seismic
The live original state soil body can not be reduced during model test, during being filled due to the soil body, therefore is shown in process of the test bright
Aobvious disturbing phenomenon.And the drilling well array on-the-ground test at scene, although the non-linear biography of more careful Site Soil can be provided
Delivery function amplitude-frequency characteristic model and quantitative result, still, because its cost is high, and the data being collected into during field test
Limited, also rarer experts and scholars use.
In summary, the obvious external world present in analysis system in the prior art for rock-soil material nonlinear characteristic is disturbed
The problem of dynamic, and obtain the nonlinear transfer function amplitude-frequency characteristic model of more careful Site Soil cost is high and data
The problem of sample is few, still lacks effective solution.
The content of the invention
The present invention overcomes the analysis system in the prior art for rock-soil material nonlinear characteristic to solve the above problems
Present in substantially external disturbance the problem of, and obtain the nonlinear transfer function amplitude versus frequency characte mould of more careful Site Soil
There is provided a kind of analysis system of rock-soil material nonlinear characteristic by the problem of high and data sample is few that spend of type.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of analysis system of rock-soil material nonlinear characteristic, the system includes modulus and declines model construction system, amendment
Modulus decline model construction system and analysis system；
The modulus declines model system and carries out the structure that modulus declines model through the following steps：
(1) observation data are obtained：The observation data of magnanimity are obtained from earthquake monitoring system, using Fourier transform method pair
Observation data are handled, and obtain three-dimensional response spectrum curve；
(2) the average iodine spectral curve in place is drawn：According to the three-dimensional response spectrum curve in step (1), place is calculated
Iodine spectral curve, calculates the average iodine spectral curve in place, and the average iodine spectral curve in place is drawn；
(3) modulus decreasing ratio and strain rate are calculated:According to the average iodine spectral curve in the place drawn in step (2)
The main influence frequency on the stratum is analyzed, modulus decreasing ratio and strain rate is calculated；
(4) modulus decreasing ratio curve is drawn, modulus is obtained and declines model；
The modulus of the amendment declines the modulus decline model construction that model system is modified through the following steps：
Amendment modulus decreasing ratio curve is modified using hyperbolic model, the modulus corrected declines model；
The modulus that the analysis system is configured to, with amendment declines model progress rock-soil material linear Characteristics
System.
Further, observation data include earth's surface observation data and underground observation data in the step (1)；
The earth's surface observation data are the three-dimensional Acceleration time course record data of earth's surface depth；
The underground observation data are the three-dimensional Acceleration time course record data of basement rock depth.
Further, observation data are handled using Fourier transform method in the step (1), obtains three-dimensional reaction
Spectral curve is concretely comprised the following steps：
(1-1) obtains earth's surface observation data correspondence using apparent survey data are handled over the ground using Fourier transform method
Three-dimensional response spectrum curve；
(1-2) is handled underground observation data using using Fourier transform method, obtains underground observation data correspondence
Three-dimensional response spectrum curve.
Further, the place iodine spectral curve in the step (2) is set a song to music including weak seismic site iodine
Line and strong earthquakes response spectrum curve；
The average iodine spectral curve in the place includes the average iodine spectral curve and strong earthquakes of weak taphrogeny
The average iodine spectral curve of motion.
Further, place iodine spectral curve is calculated in the step (2) and the average iodine spectrum in place is calculated
Curve is concretely comprised the following steps：
Earth's surface is observed the corresponding three-dimensional response spectrum curve of data three-dimensional response spectrum corresponding with underground observation data by (2-1)
Curve compares the iodine spectral curve for obtaining place；
(2-2) calculates weak seismic site iodine spectral curve according to the iodine spectral curve in the place of step (2-1)
With strong earthquakes response spectrum curve；
(2-3) calculates the average iodine spectral curve of weak taphrogeny and the average iodine of strong earthquakes motion is set a song to music
Line, and carry out painting for the average iodine spectral curve that the average iodine spectral curve and strong earthquakes of weak taphrogeny are moved
System.
Further, the analysis method of the main influence frequency in the step (3) is by the average iodine in place
The corresponding frequency of peak value in spectral curve obtains main influence frequency.
Further, in the step (3),
The average iodine spectral curve of the weak taphrogeny calculated by step (2-3), analyzes the master of weak taphrogeny
It is f to influence frequencyweak；
The average iodine spectral curve that the strong earthquakes calculated by step (2-3) are moved, the master of analysis strong earthquakes motion
It is f to influence frequencystrong。
Further, in the step (3),
Calculate the modulus decreasing ratio N/NmaxThe formula used for：
Wherein, vstrongThe velocity of wave moved for strong earthquakes, vweakFor the velocity of wave of weak taphrogeny, fweakFor weak taphrogeny
Main influence frequency, fstrongThe main influence frequency moved for strong earthquakes；
Calculate formula that the strain rate uses for：
Wherein, A is the corresponding vertical acceleration of peak value, v 'pFor close to the p ripple velocities of wave of ground surface, fpsurfaceFor earth's surface
Main influence frequency,
Corresponding shearing strain is used when modulus uses modulus of shearing, and now R is effective drainage porosity, when modulus uses lateral spacing
R is 1 during modulus.
Further, in the step (4), modulus decreasing ratio curve is drawn, modulus is obtained and declines the specific of model
Step is：
It is abscissa using modulus decreasing ratio to indulge seat that the obtained point-rendering of modulus decreasing ratio, which will be calculated, in bulk compressibility
In target cartesian coordinate system, and carry out being divided into three parts according to the size of the lateral spacing modulus on stratum, to the point in each section
Carry out curve fitting, obtain the optimum fit curve of each section, construct modulus and decline model.
Further, in the modulus decline model system of the amendment, amendment modulus is declined using hyperbolic model
Ratio curve is modified, and the modulus corrected declines model, and it is non-to decline model analysis rock-soil material using the modulus of amendment
Linear character.
Revised modulus declines model：
Wherein, b is model parameter, and ε is strain rate.
Beneficial effects of the present invention：
(1) present invention provides a kind of analysis of rock-soil material nonlinear characteristic to build the nonlinear model of rock-soil material
System, builds new model and rock-soil material nonlinear characteristic is analyzed, used in the structure of this kind of model within the system
The observation data of earthquake monitoring system, it is to avoid to the perturbation action and test in situ of the soil body in reduction earthquake in laboratory
In it is costly the problem of.
(2) the substantial amounts of observation data that the present invention is provided based on earthquake monitoring system, eliminate and are deposited in multi-source heterogeneous data
Repetition and inconsistence problems.
(3) analytical parameters are less in a kind of analysis system of rock-soil material nonlinear characteristic in the present invention, and parameter meaning
Clearly, the degree of accuracy is higher, it is easy to be applied to calculating and analysis in actual Geotechnical Engineering.
Brief description of the drawings
Fig. 1 is a kind of method flow diagram of the analysis system of rock-soil material nonlinear characteristic of the invention；
Fig. 2 is the three-dimensional response spectrum curve schematic diagram of the present invention；
Fig. 3 (a) is the weak seismic site iodine spectral curve schematic diagram of the present invention；
Fig. 3 (b) is the strong earthquakes place iodine spectral curve schematic diagram of the present invention；
Fig. 4 is the decreasing ratio schematic diagram of the lateral spacing modulus of the present invention；
Fig. 5 is the decreasing ratio curve synoptic diagram of the lateral spacing modulus of the present invention；
Fig. 6 is the revised lateral spacing modulus decreasing ratio schematic diagram of the present invention；
Wherein, 1- modulus declines model construction system, and the modulus of 2- amendments declines model construction system, 3- analysis systems.
Embodiment：
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another
Indicate, all technologies used herein and scientific terminology are with 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 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 this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
In the case where not conflicting, the feature in embodiment and embodiment in the application can be mutually combined.Tie below
Closing accompanying drawing, the invention will be further described with embodiment.
Embodiment 1：
As background technology is introduced, overcome in the prior art in the prior art for rock-soil material nonlinear characteristic
Present in analysis the problem of obvious external disturbance, and obtain the nonlinear transfer function amplitude-frequency spy of more careful Site Soil
Property and quantitative result the high and data sample of cost it is few the problem of there is provided a kind of analysis system of rock-soil material nonlinear characteristic
System.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of analysis system of rock-soil material nonlinear characteristic, the system includes modulus and declines model construction system, amendment
Modulus decline model construction system and analysis system；
The modulus declines model system and carries out the structure that modulus declines model through the following steps：
(1) observation data are obtained：The observation data of magnanimity are obtained from earthquake monitoring system, using Fourier transform method pair
Observation data are handled, and obtain three-dimensional response spectrum curve；
(2) the average iodine spectral curve in place is drawn：According to the three-dimensional response spectrum curve in step (1), place is calculated
Iodine spectral curve, calculates the average iodine spectral curve in place, and the average iodine spectral curve in place is drawn；
(3) modulus decreasing ratio and strain rate are calculated:According to the average iodine spectral curve in the place drawn in step (2)
The main influence frequency on the stratum is analyzed, modulus decreasing ratio and strain rate is calculated；
(4) modulus decreasing ratio curve is drawn, modulus is obtained and declines model；
The modulus of the amendment declines the modulus decline model construction that model system is modified through the following steps：
Amendment modulus decreasing ratio curve is modified using hyperbolic model, the modulus corrected declines model；
The modulus that the analysis system is configured to, with amendment declines model progress rock-soil material linear Characteristics
System.
In the modulus decline model system of the present embodiment,
Observation data include earth's surface observation data and underground observation data in the step (1)；
The earth's surface observation data are the three-dimensional Acceleration time course record data of earth's surface depth；
The underground observation data are the three-dimensional Acceleration time course record data of basement rock depth.
Observation data are handled using Fourier transform method in the step (1), three-dimensional response spectrum curve is obtained
Concretely comprise the following steps：
(1-1) obtains earth's surface observation data correspondence using apparent survey data are handled over the ground using Fourier transform method
Three-dimensional response spectrum curve；
(1-2) is handled underground observation data using using Fourier transform method, obtains underground observation data correspondence
Three-dimensional response spectrum curve.
In the present embodiment, the earthquake monitoring system select shaft bottom array earthquake monitoring system, to from shaft bottom in array
The observation data that magnanimity is obtained in monitoring system are shaken, processing is calculated for convenience in the present embodiment, from magnanimity observation data
Choose 6 groups of weak geological datas and 9 groups of strong earthquakes data, using Fourier transform method to 6 groups of weak geological datas and 9 groups by force
Shake data are handled, and obtain the corresponding three-dimensional response spectrum curve of 6 groups of weak geological datas and 9 groups of strong earthquakes data are corresponding
The three-dimensional response spectrum curve obtained after three-dimensional response spectrum curve, Fourier transform is as shown in Figure 2.
(2) the average iodine spectral curve in place is drawn：According to the three-dimensional response spectrum curve in step (1), place is calculated
Iodine spectral curve, calculates the average iodine spectral curve in place, and the average iodine spectral curve in place is drawn；
Place iodine spectral curve in the step (2) includes weak seismic site iodine spectral curve and strong earthquakes
Response spectrum curve；
The average iodine spectral curve in the place includes the average iodine spectral curve and strong earthquakes of weak taphrogeny
The average iodine spectral curve of motion.
Place iodine spectral curve is calculated in the step (2) and the specific of the average iodine spectral curve in place is calculated
Step is：
Earth's surface is observed the corresponding three-dimensional response spectrum curve of data three-dimensional response spectrum corresponding with underground observation data by (2-1)
Curve compares the iodine spectral curve for obtaining place；
(2-2) calculates weak seismic site iodine spectral curve according to the iodine spectral curve in the place of step (2-1)
With strong earthquakes response spectrum curve；
(2-3) calculates the average iodine spectral curve of weak taphrogeny and the average iodine of strong earthquakes motion is set a song to music
Line, and carry out painting for the average iodine spectral curve that the average iodine spectral curve and strong earthquakes of weak taphrogeny are moved
System.
Calculate obtained weak seismic site iodine spectral curve and strong earthquakes response spectrum curve, such as Fig. 3 (a)-Fig. 3 (b)
It is shown, and the average iodine spectrum of the average iodine spectral curve for obtaining weak taphrogeny and strong earthquakes motion is calculated respectively
Curve, as shown in bold curve in Fig. 3 (a)-Fig. 3 (b).
(3) modulus decreasing ratio and strain rate are calculated:According to the average iodine spectral curve in the place drawn in step (2)
The main influence frequency on the stratum is analyzed, modulus decreasing ratio and strain rate is calculated；
Set a song to music according to the average iodine in the place drawn in step (2) the main influence frequency on the line analysis stratum, meter
Calculate modulus decreasing ratio；
It is modified to calculating modulus decreasing ratio, analyzes rock-soil material nonlinear characteristic.
The analysis method of main influence frequency in the step (3) is by the average iodine spectral curve in place
The corresponding frequency of peak value obtains main influence frequency.
In the step (3),
The average iodine spectral curve of the weak taphrogeny calculated by step (2-3), analyzes the master of weak taphrogeny
It is f to influence frequencyweak；
The average iodine spectral curve that the strong earthquakes calculated by step (2-3) are moved, the master of analysis strong earthquakes motion
It is f to influence frequencystrong。
In the step (3),
Calculate the modulus decreasing ratio N/NmaxThe formula used for：
Wherein, vstrongThe velocity of wave moved for strong earthquakes, vweakFor the velocity of wave of weak taphrogeny, fweakFor weak taphrogeny
Main influence frequency, fstrongThe main influence frequency moved for strong earthquakes.
Calculate formula that the strain rate uses for：
Wherein, A is the corresponding vertical acceleration of peak value, v 'pFor close to the p ripple velocities of wave of ground surface, fpsurfaceFor earth's surface
Main influence frequency,
Corresponding shearing strain is used when modulus uses modulus of shearing, and now R is effective drainage porosity, when modulus uses lateral spacing
R is 1 during modulus.
(4) modulus decreasing ratio curve is drawn, modulus is obtained and declines model；
In the step (4), modulus decreasing ratio curve is drawn, modulus is obtained and declines concretely comprising the following steps for model：
It is abscissa using modulus decreasing ratio to indulge seat that the obtained point-rendering of modulus decreasing ratio, which will be calculated, in bulk compressibility
In target cartesian coordinate system, and carry out being divided into three parts according to the size of the lateral spacing modulus on stratum, to the point in each section
Carry out curve fitting, obtain the optimum fit curve formation modulus decreasing ratio curve of each section, construct modulus and decline mould
Type.
In the present embodiment, the modulus decreasing ratio of lateral spacing modulus according to the size of the lateral spacing on stratum as shown in figure 4, and enter
Row is divided into the part of 0-60Kpa, 60-120Kpa and 120-180Kpa tri-, and the point in each section is carried out curve fitting, and obtains every
The optimum fit curve of a part, obtains the optimum fit curve of each section, constitutes modulus decreasing ratio curve, lateral spacing modulus
Decreasing ratio curve synoptic diagram as shown in figure 5, by modulus decreasing ratio curve construct modulus decline model.
In the modulus decline model system of the amendment of the present embodiment,
Amendment modulus decreasing ratio curve is modified using hyperbolic model, the modulus corrected declines model；
Mathematics amendment is carried out to lateral spacing modulus decline curve, using the hyperbolic model of Imperial College to obtained side
Limit modulus decreasing ratio curve is modified, and the modulus corrected declines model, and revised lateral spacing modulus decreasing ratio is shown
It is intended to as shown in Figure 6.
Revised modulus declines model：
Wherein, b is model parameter, and ε is strain rate.
In the present embodiment, model parameter b and effective vertical confined pressure σ 'vIt is linear
B=-60 σ 'v+ 10907,
Model parameter b is brought into revised modulus decreasing ratio formula and obtains last modulus decreasing ratio.
In the analysis system of the present embodiment,
The modulus that the analysis system is configured to, with amendment declines model progress rock-soil material linear Characteristics
System.
The general principle of the present embodiment：
The present embodiment is to be based on KiK-net shaft bottoms array earthquake monitoring system, and rock-soil material is analyzed by transmission function
Non-linear nature in seismic process.Wherein characterized using the decreasing ratio of modulus in seismic process rock-soil material by
The nonlinear characteristic showed in seismic process.
The fundamental frequency of rock-soil material is
F=ω/2 π=Vs/4H
Wherein, ω is angular speed, and Vs is velocity of wave, and H is soil thickness.
In the present embodiment, non-linear nature is represented by the decreasing ratio of modulus in rock-soil material seismic process, mould
The decreasing ratio of amount is the ratio of the modulus and the modulus of original state rock-soil material of rock-soil material in seismic process：
N/Nmax；
Wherein, N is the modulus of rock-soil material, NmaxIt is the modulus of original state rock-soil material；
Simultaneously rock-soil material modulus such as lateral spacing modulus and modulus of shearing in seismic process with seismic wave in ground material
Transmission speed in material has obvious secondary relation：
N=ρ v2=16 ρ H2f2,
Wherein, ρ is ground density, and v is velocity of wave, and f is the fundamental frequency of rock-soil material；
S ripples in seismic process only influence the modulus of shearing of rock-soil material, and the p ripples in seismic process are influence ground
The lateral spacing modulus of material.
Use lateral spacing Modulus Analysis rock-soil material non-linear nature in the present embodiment, by corresponding velocity of wave v in formula and
The fundamental frequency f of rock-soil material changes the fundamental frequency of the velocity of wave corresponding with lateral spacing modulus and rock-soil material into.
Modulus when rock-soil material is by intense earthquake motion is
Nstrong=ρ v2=16 ρ H2fstrong 2
Modulus when rock-soil material is by weak taphrogeny is
Nweak=ρ v2=16 ρ H2fweak 2
When material of rock and soil is by weak motion, modulus fall is smaller, closest to the modulus of original state rock-soil material,
Using rock-soil material modulus corresponding when by weak taphrogeny as the modulus for being original state rock-soil material, meanwhile, ground material
Material modulus corresponding when by weak taphrogeny be also maximum modulus i.e.
Nmax=Nweak
Rock-soil material can further be drawn when being subjected to taphrogeny, the decreasing ratio of modulus is
N/Nmax=(vstrong/vweak)2=(fstrong/fweak)2
The beneficial effect of the present embodiment：
(1) present invention provides a kind of analysis of rock-soil material nonlinear characteristic to build the nonlinear model of rock-soil material
System, builds new model and rock-soil material nonlinear characteristic is analyzed, used in the structure of this kind of model within the system
The observation data of earthquake monitoring system, it is to avoid to the perturbation action and test in situ of the soil body in reduction earthquake in laboratory
In it is costly the problem of.
(2) the substantial amounts of observation data that the present invention is provided based on earthquake monitoring system, eliminate and are deposited in multi-source heterogeneous data
Repetition and inconsistence problems.
(3) analytical parameters are less in a kind of analysis system of rock-soil material nonlinear characteristic in the present invention, and parameter meaning
Clearly, the degree of accuracy is higher, it is easy to be applied to calculating and analysis in actual Geotechnical Engineering.
The preferred embodiment of the application is the foregoing is only, the application is not limited to, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of analysis system of rock-soil material nonlinear characteristic, it is characterized in that：The system includes modulus and declines model construction system
System, the modulus of amendment decline model construction system and analysis system；
The modulus declines model system and carries out the structure that modulus declines model through the following steps：
(1) observation data are obtained：The observation data of magnanimity are obtained from earthquake monitoring system, using Fourier transform method to observation
Data are handled, and obtain three-dimensional response spectrum curve；
(2) the average iodine spectral curve in place is drawn：According to the three-dimensional response spectrum curve in step (1), place amplification is calculated
Response spectrum curve, calculates the average iodine spectral curve in place, and the average iodine spectral curve in place is drawn；
(3) modulus decreasing ratio and strain rate are calculated:Set a song to music line analysis according to the average iodine in the place drawn in step (2)
The main influence frequency on the stratum, calculates modulus decreasing ratio and strain rate；
(4) modulus decreasing ratio curve is drawn, modulus is obtained and declines model；
The modulus of the amendment declines the modulus decline model construction that model system is modified through the following steps：
Amendment modulus decreasing ratio curve is modified using hyperbolic model, the modulus corrected declines model；
The modulus that the analysis system is configured to, with amendment declines model and carries out rock-soil material linear Characteristics and is
System.
2. a kind of analysis system of rock-soil material nonlinear characteristic as claimed in claim 1, it is characterized in that：The step (1)
Middle observation data include earth's surface and observe data and underground observation data；
The earth's surface observation data are the three-dimensional Acceleration time course record data of earth's surface depth；
The underground observation data are the three-dimensional Acceleration time course record data of basement rock depth.
3. a kind of analysis system of rock-soil material nonlinear characteristic as claimed in claim 2, it is characterized in that：The step (1)
Middle use Fourier transform method is handled observation data, obtains concretely comprising the following steps for three-dimensional response spectrum curve：
(1-1) obtains earth's surface observation data corresponding three using apparent survey data are handled over the ground using Fourier transform method
To response spectrum curve；
(1-2) is handled underground observation data using using Fourier transform method, obtains underground observation data corresponding three
To response spectrum curve.
4. a kind of analysis system of rock-soil material nonlinear characteristic as claimed in claim 3, it is characterized in that：The step (2)
In place iodine spectral curve include weak seismic site iodine spectral curve and strong earthquakes response spectrum curve；
The average iodine spectral curve in the place includes average iodine spectral curve and the strong earthquakes motion of weak taphrogeny
Average iodine spectral curve.
5. a kind of analysis system of rock-soil material nonlinear characteristic as claimed in claim 4, it is characterized in that：The step (2)
Middle calculating place iodine spectral curve is concretely comprised the following steps with the calculating average iodine spectral curve in place：
Earth's surface is observed the corresponding three-dimensional response spectrum curve of data three-dimensional response spectrum curve corresponding with underground observation data by (2-1)
Compared to the iodine spectral curve for obtaining place；
(2-2) calculates weak seismic site iodine spectral curve and strong according to the iodine spectral curve in the place of step (2-1)
Earthquake response spectral curve；
(2-3) calculates the average iodine spectral curve of weak taphrogeny and the average iodine spectral curve of strong earthquakes motion,
And carry out the drafting of the average iodine spectral curve of weak taphrogeny and the average iodine spectral curve of strong earthquakes motion.
6. a kind of analysis system of rock-soil material nonlinear characteristic as claimed in claim 5, it is characterized in that：The step (3)
In the analysis method of main influence frequency obtained to pass through the corresponding frequency of peak value in the average iodine spectral curve in place
Main influence frequency.
7. a kind of analysis system of rock-soil material nonlinear characteristic as claimed in claim 6, it is characterized in that：In the step
(3) in,
The average iodine spectral curve of the weak taphrogeny calculated by step (2-3), analyzes the main shadow of weak taphrogeny
It is f to ring frequencyweak；
The average iodine spectral curve that the strong earthquakes calculated by step (2-3) are moved, the main shadow of analysis strong earthquakes motion
It is f to ring frequencystrong。
8. a kind of analysis system of rock-soil material nonlinear characteristic as claimed in claim 7, it is characterized in that：In the step
(3) in,
Calculate the modulus decreasing ratio N/NmaxThe formula used for：
<mrow>
<mfrac>
<mi>N</mi>
<msub>
<mi>N</mi>
<mrow>
<mi>m</mi>
<mi>a</mi>
<mi>x</mi>
</mrow>
</msub>
</mfrac>
<mo>=</mo>
<msup>
<mrow>
<mo>(</mo>
<mfrac>
<msub>
<mi>v</mi>
<mrow>
<mi>s</mi>
<mi>t</mi>
<mi>r</mi>
<mi>o</mi>
<mi>n</mi>
<mi>g</mi>
</mrow>
</msub>
<msub>
<mi>v</mi>
<mrow>
<mi>w</mi>
<mi>e</mi>
<mi>a</mi>
<mi>k</mi>
</mrow>
</msub>
</mfrac>
<mo>)</mo>
</mrow>
<mn>2</mn>
</msup>
<mo>=</mo>
<msup>
<mrow>
<mo>(</mo>
<mfrac>
<msub>
<mi>f</mi>
<mrow>
<mi>s</mi>
<mi>t</mi>
<mi>r</mi>
<mi>o</mi>
<mi>n</mi>
<mi>g</mi>
</mrow>
</msub>
<msub>
<mi>f</mi>
<mrow>
<mi>w</mi>
<mi>e</mi>
<mi>a</mi>
<mi>k</mi>
</mrow>
</msub>
</mfrac>
<mo>)</mo>
</mrow>
<mn>2</mn>
</msup>
</mrow>
Wherein, vstrongThe velocity of wave moved for strong earthquakes, vweakFor the velocity of wave of weak taphrogeny, fweakFor the main of weak taphrogeny
Influence frequency, fstrongThe main influence frequency moved for strong earthquakes；
Calculate formula that the strain rate uses for：
<mrow>
<mo>|</mo>
<mi>&epsiv;</mi>
<mo>|</mo>
<mo>=</mo>
<mi>R</mi>
<mfrac>
<mi>A</mi>
<mrow>
<mn>2</mn>
<msub>
<mi>&pi;f</mi>
<mrow>
<mi>s</mi>
<mi>u</mi>
<mi>r</mi>
<mi>f</mi>
<mi>a</mi>
<mi>c</mi>
<mi>e</mi>
</mrow>
</msub>
<msubsup>
<mi>v</mi>
<mi>p</mi>
<mo>&prime;</mo>
</msubsup>
</mrow>
</mfrac>
</mrow>
Wherein, A is the corresponding vertical acceleration of peak value, v 'pFor close to the p ripple velocities of wave of ground surface, fpsurfaceFor the main of earth's surface
Frequency is influenceed, corresponding shearing strain is used when modulus uses modulus of shearing, and now R is effective drainage porosity, when modulus uses lateral spacing
R is 1 during modulus.
9. a kind of analysis system of rock-soil material nonlinear characteristic as claimed in claim 8, it is characterized in that：In the step
(4) in, modulus decreasing ratio curve is drawn, modulus is obtained and declines concretely comprising the following steps for model：
It is abscissa using modulus decreasing ratio as ordinate that the obtained point-rendering of modulus decreasing ratio, which will be calculated, in bulk compressibility
In cartesian coordinate system, and carry out being divided into three parts according to the size of the lateral spacing modulus on stratum, the point in each section is carried out
Curve matching, obtains the optimum fit curve of each section, modulus decreasing ratio curve is constituted, by modulus decreasing ratio curve structure
Build out modulus and decline model.
10. a kind of analysis system of rock-soil material nonlinear characteristic as claimed in claim 9, it is characterized in that：
In the modulus decline model system of the amendment, modulus decreasing ratio curve is modified using hyperbolic model,
The modulus corrected declines model,
Revised modulus declines model：
<mrow>
<mfrac>
<mi>N</mi>
<msub>
<mi>N</mi>
<mrow>
<mi>m</mi>
<mi>a</mi>
<mi>x</mi>
</mrow>
</msub>
</mfrac>
<mo>=</mo>
<mfrac>
<mn>1</mn>
<mrow>
<mn>1</mn>
<mo>+</mo>
<mi>b</mi>
<mi>&epsiv;</mi>
</mrow>
</mfrac>
</mrow>
Wherein, b is model parameter, and ε is strain rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710248453.XA CN107085637B (en) | 2017-04-17 | 2017-04-17 | A kind of analysis system of rock-soil material nonlinear characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710248453.XA CN107085637B (en) | 2017-04-17 | 2017-04-17 | A kind of analysis system of rock-soil material nonlinear characteristic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107085637A true CN107085637A (en) | 2017-08-22 |
| CN107085637B CN107085637B (en) | 2019-05-24 |
Family
ID=59612020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710248453.XA Active CN107085637B (en) | 2017-04-17 | 2017-04-17 | A kind of analysis system of rock-soil material nonlinear characteristic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107085637B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187334A (en) * | 2018-07-17 | 2019-01-11 | 昆明理工大学 | Consider non-linear and strain rate effect material interactive interface method for numerical simulation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592029A (en) * | 2012-02-24 | 2012-07-18 | 董晓亮 | Method for analyzing and predicting settlement of constructed collapsible loess subgrade |
| CN105653815A (en) * | 2016-01-19 | 2016-06-08 | 中国海洋石油总公司 | Reservoir fluid distribution quantitative interpretation method based on rock physical model theory |
| KR101648704B1 (en) * | 2015-08-24 | 2016-08-18 | 장성만 | Underground wall structure |
| CN106202735A (en) * | 2016-07-14 | 2016-12-07 | 天津大学 | A kind of local nonlinearity foundation soil structural interaction sub-structural test method |
| CN106503332A (en) * | 2016-10-21 | 2017-03-15 | 福州大学 | A kind of miniature pile foundation soil dynamic response method for solving for introducing nonlinear spring |
-
2017
- 2017-04-17 CN CN201710248453.XA patent/CN107085637B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592029A (en) * | 2012-02-24 | 2012-07-18 | 董晓亮 | Method for analyzing and predicting settlement of constructed collapsible loess subgrade |
| KR101648704B1 (en) * | 2015-08-24 | 2016-08-18 | 장성만 | Underground wall structure |
| CN105653815A (en) * | 2016-01-19 | 2016-06-08 | 中国海洋石油总公司 | Reservoir fluid distribution quantitative interpretation method based on rock physical model theory |
| CN106202735A (en) * | 2016-07-14 | 2016-12-07 | 天津大学 | A kind of local nonlinearity foundation soil structural interaction sub-structural test method |
| CN106503332A (en) * | 2016-10-21 | 2017-03-15 | 福州大学 | A kind of miniature pile foundation soil dynamic response method for solving for introducing nonlinear spring |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187334A (en) * | 2018-07-17 | 2019-01-11 | 昆明理工大学 | Consider non-linear and strain rate effect material interactive interface method for numerical simulation |
| CN109187334B (en) * | 2018-07-17 | 2020-11-17 | 昆明理工大学 | Material interaction interface numerical simulation method considering nonlinear and strain rate effects |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107085637B (en) | 2019-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102937721B (en) | Limited frequency tomography method for utilizing preliminary wave travel time | |
| CN105426619B (en) | A kind of analysis method of determining shield tunnel longitudinal bending stiffness | |
| CN104297788B (en) | Mine microseism and blasting signal identification method based on waveform oscillation starting trend line slope | |
| CN104632202B (en) | Determine the method and device of dry clay tri-porosity logging parameter value | |
| CN109490965A (en) | A kind of heteropical method and device in quantitative assessment stratum | |
| CN105956271B (en) | A kind of tunneling shield construction causes the calculation method of formation displacement | |
| CN103605157B (en) | The method of decay near surface scattering wave | |
| Rezaei et al. | Liquefaction assessment using microtremor measurement, conventional method and artificial neural network (Case study: Babol, Iran) | |
| CN110847969B (en) | Method for determining deformation grading early warning index of underground cavern group under rock mass condition | |
| CN106503329A (en) | Anti-liquefaction Judgment Method for Stone Column Composite Foundation based on excess pore water pressure ratio | |
| CN116703244B (en) | Mining subsidence area treatment effect and comprehensive evaluation method | |
| CN103678778A (en) | Method for radioactive geophysical and geochemical exploration information integration | |
| CN103994921B (en) | Based on the Characters of Weak Intercalation in Layered Rock Mass elastic modulus method of testing of wavelet waveforms Changing Pattern | |
| CN107085237B (en) | A kind of analysis method of rock-soil material nonlinear characteristic | |
| CN107085637A (en) | A kind of analysis system of rock-soil material nonlinear characteristic | |
| CN102608223A (en) | Digital signal analysis method based on spectral energy ratio | |
| CN116703166B (en) | Coal mine filling mining geological risk assessment method based on data mining | |
| CN104729643A (en) | Dynamic weighing method for high-precision underground scraper | |
| CN110032757A (en) | A kind of calculation method of the dynamic consolidation construction vibration to Building Settlement around Foundation safe distance | |
| Žaržojus et al. | Energy transfer measuring in dynamic probing test in layered geological strata | |
| CN104897276B (en) | A kind of vibration isolation ditch dynamic monitor and method based on difference Spectrum Analysis | |
| Yu-liang | Shaking table modeling of embankment slope response to earthquake loading | |
| CN104375180B (en) | A kind of seismic data processing technique, apparatus and system | |
| CN107179548A (en) | A kind of pre-stack seismic imaging method based on true earth's surface | |
| CN106483556A (en) | A kind of lasting earthquake magnitude based on Mine Earthquakes monitoring system and Richter scale conversion method |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |