shearing wave वाक्य
उदाहरण वाक्य
मोबाइल
- The longitudinal wave velocity in saturated soil could not only be useful , but reflect more information as well . the shear wave velocity may be different from the shear sewv , the difference is proved to be caused by porosity and structure factor
- In this paper , a project is used to show the applicablity of the relationship between shear strength of soft soil and shear wave velocity which can make up the disadvantage of rayleigh wave method just to determine the nature of soil
- In this paper , the reflection method of ultrasonic longitudinal wave and that of ultrasonic shear wave to test the bonding quality of the adhesive interface between steel and concrete from single - surface is adopted respectively
- To explore the dynamic properties of landfills further more ; rayleigh wave tests on landfills are performed by a self - developed rsa system . by means of frequency analysis ; shear wave velocity varied with depth curves of landfills are obtained
- Under this background , in this paper , a relationship between shear strength and shear wave velocity is built to estimate the characteristics of foundation soil with amount . the relationship is based on the non - linear elasticity of foundation soil and the theory of mohr - couloumb strength
- The typical samples with different lithological characters are collected from two wells of representative reservoir consisting of sandstone and conglomerate of positive rhythm . compressional and shear wave velocities , porosity , and clay content are measured in two states fully saturated with water
- When pure shear wave propagate in anisotropy media , even thought propagation direction is parallel to the direction of aligned cracks , experimental results exhibit that only two kinds of shear - wave velocity can be measured - fast shear wave and slow shear wave neglecting polarization direction
- Fourth , there exists some corresponding relationships between spectral structure characters of ground micro - tremor and shear wave velocity of site soil layers . the outcomes of these two kinds of tests can be conferred each other . fifth , the correlations between predominant period of ground micro - tremor and thickness , and value of shear wave velocity of overburden layer are established
- The waves should be sheared waves for the anisotropic aeo device and longitudinal waves for the isotropic aeo device . geometrical relationships of anisotropic acousto - optic effect in ln crystal and kdp crystals are studied by tangent - match condition . curves of incident angle vs . abaxial angle , diffractive angle vs . abaxial angle , extreme frequency vs . abaxial angle and acousto - optic merit vs . incident angle vs . abaxial angle are systematically gained and the design parameters are also calculated
- The results showed that the displacement of the surrounding rock of cavern evidently decreases with the increase of in - situ stress side pressure coefficient , as well as the decreasing rate of surrounding rock displacement of cavern with increasing at the condition of < 1 are significant larger than that of > 1 ; when < 1 , the displacements of measured points in cavern increase then decrease with the increasing incident angle of shear wave , while , when > 1 , the displacements decrease then increase with the increasing incident angle of shear wave , and the influence of incident angle on the displacements of measured points tends to decrease with the increasing in - situ stress side pressure coefficient
- Based on the analysis of thin sections by microscope , measurement of porosity and density , and geological setting , we tested the rock physical parameters of sandstone , siltstone , carbonate and other transitional sedimentary rocks by the mts system under formation conditions ( temperatures , pressures and pore fluid properties ) . the rocks we tested are from tertiary ( including zhujiang formation , zhuhai formation , enping formation , hanjiang formation ) of zhujiangkou basin in southern china sea . according to the analysis results , we studied the main ultrasonic wave velocity characters of rocks , which are compressive and shear wave velocity and poisson ' s ratio under different formation conditions
- The features of phase and group velocity were advanced by means of preparing samples with different shaping . the phenomenon of " cusp " in group surface of quasi - shear wave ( qsv ) was observed . the inversed velocity surface according to calculated elastic constants in real orthotropic media is consistent with practical measured velocity surface
- 2 . studying the effects of soft layer and hard layer on seismic response . we further investigate the behavior of both the soft layers and the hard layers with the shear wave speed less than 500m / s effecting on the maximum acceleration and the shape of response spectrum , respectively
- This paper relates to some problems about the determination of design ground motion parameters , which include the choice of the attenuation relationship of rock horizontal acceleration response spectrum , the impact of focal depth to rock peak horizontal acceleration and rock response spectrum curves , the choice of intensity envelops function and random input phase , the choice of soil nonlinearity and shear wave velocity , scale of design ground motion response spectrum etc . in the researches of relative aspect , based on a typical section plane of the engineering site , influence of the change of some parameters on design ground motion parameters and the existing errors and corresponding rules are studied by using the method of one dimension model of equivalent linearization
- Adopting the deformation harmony theory , the numeric calculation of the curve of load versus settlement is made . the fitting results between the calculated curve of load - settlement and the measured one of piles with different construction process are illustrated . hence , under the condition of few or no static load test data , the performance of bearing capacity of single bored pile in loess may be predicted utilizing indexes of shear wave velocity , static cone penetration test and modification coefficient of depth , so it is remarkable to reduce the blindness of preliminary design of pile
- 3 ) from the samples saturated completely by air to those saturated completely by brine , the velocities of compressive wave of the rocks increase obviously , with the extent of 11 . 73 % ; the velocities of shear wave change little or decrease slightly , with the average of decreasing extent of 1 . 21 % for shear wave 1 and 1 . 16 % for shear wave 2 . the difference of velocity between compressive wave and shear wave makes poisson ' s ratio increase obviously , with the average extent of 87 . 25 %
- Can influence directly the velocities of compressive wave and shear wave of rock . commonly , the higher the content of carbonate in rock , the higher the velocity of compressive wave and shear wave ; the higher the mud content , the lower the velocity of compressive wave and shear wave ; the higher the porosity of rock , the lower the velocity of compressive wave and shear wave ; the more compacted the rocks , the higher the velocity of compressive wave and shear wav
- Numerical results show that if appropriate delay times of sources are exerted on elements of phased array , direction of acoustic beam radiated from the phased array can be steered so that the refracted compressional wave and the refracted shear wave can be excited effectively
- 5 ) the velocity of the compressive and shear wave for the samples saturated completely by brine increases with the increasing of confining pressure ( with the constant pore pressure ) , but poisson ' s ratio decreases . 6 ) some interior factors , such as the composition of rock , porosity , density and so on
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