This paper puts forward a method of fast , handy , no - destructive and effective testing which can be used to test the strength and geometrical dimension of subgrade abamurus using the method of earthquake wave velocity and gpr ( ground penetrating radar ) . this method can be used to definite the dimension and strength of abamurus by determining some physical parameters ( such as elastic wave velocity and electromagnetic wave velocity etc , ) and by the correlation of these physical parameters with mortar flag stones 本论文提出使用地震波速法和地质雷达法检测路基挡墙的强度和几何尺寸，是一种快速、简便、无损、有效的检测方法。此方法通过测定某些适当的物理量(如：弹性波速度、电磁波速度等) ，并通过这些物理量与浆砌片石的相关性，确定墙体的尺寸、强度等性能。
Seismic survey is a new method used to civil engineering area in recent years . it was widely applied to survey or detecting of roadbase , dam base , foundation of building , tunnel , river bed , lake bed and etc . the chief methods are reflection method , refraction method , wave velocity testing , surface ware survey and transverse wave suivey . seismic survey can divide different layer , measure the incidence of sediment stratum , detect the structure of rock , test the handle effect of surface wave survey , we can calculate the carrying capacity of foundation and other mechanical parameters . this technique can give service to some big engineering departments such as highway developing company , survey design company , water supply company , plan bureau , construct bureau etc 应用于工程的主要方法有反射波法折射波法波速测井面波法及横波勘探等。地震勘探能详细划分地层高精度地确定沉积地层的倾角能够准确探明岩体构造褶皱断层破碎带裂隙带对于回填工程路基坝基，地震勘探可以检测其回填处理效果对于隧道工程，可以探测隧道洞体的围岩分类及洞口地质情况利用面波勘探所得到的瑞利波速度，可以准确推算地基的承载力动弹模量等力学参数。
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 % 3 )从完全饱和气到完全饱和水，珠江口盆地第三系砂岩、粉砂岩、碳酸盐岩及其过渡性岩石类型的纵波速度是显著增加的，平均增加幅度为11 . 73 ；横波速度变化很小，或略有降低，横波1平均降低幅度为1 . 21 ，横波2平均降低幅度为1 . 16 ；纵横波速度的这种差异变化导致泊松比显著增加，平均增加幅度为87 . 25 。
In the aspect of saw devices , for zno has high coupling factor , and aln has high saw velocity , if zno thin film was deposited on aln thin film , the multiplayer film has not only high coupling factor , but also has high saw velocity , which was suitable for saw of high frequency 在声表面波器件应用方面，由于zno具有很大的机电耦合系数，而aln的声表面波传播速度较高，因此若zno和aln相结合，则不仅具有大的机电耦合系数，而且具有很高的声表面波速度，这非常适合于制造高频声表面波器件。
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 6 )岩石组成和孔隙度等岩石内部因素均可直接影响岩石的纵横波速度，一般说来，岩石中碳酸盐含量越高，其纵横波速度越高；而泥质含量越高，其纵横波速度越低；岩石孔隙度越高，其纵横波速度越低，岩石密度越大，其纵横波速度越高。
Research shows : change of temperature & pressure of sand rock results in prominent change of seismic p and s wave velocity and dynamic & static modul and seismic attenuation of sand rock . change of pore liquid character and saturation results in change of seismic p and s wave velocity and attenuation of sand rock 研究表明：岩石所处的温度压力条件的变化将导致纵横波速度、动弹参数和衰减的显著变化：孔隙流体性质(含水或油、气)及饱和度的变化将引起纵、横波速度、衰减的明显变化。
The main contents of testing the strength of subgrade abamurus using earthquake wave velocity are as follows : the influence of the lithology and strength of flag stones and the shape of block upon wave velocity , the influence of the strength of cement mortar upon earthquake wave velocity , the estimation standards of the strength and completion of abamurus . this paper puts forward an accurate no - destructive testing using the different reflect of elastic wave velocity for abamurus stones , the strength of mortar , the plumpness of mortar and the type of abamurus , on the basis of laboratory tests and field tests . it can be used to accurately distinguish the completion of abamurus 地震波速法检测路基挡墙强度，研究的主要内容有：片石岩性和强度及块体形体对波速的影响；水泥砂浆强度对墙体波速的影响；挡墙整体强度和完整性的评估标准。应用弹性波速度对挡土墙石材、砂浆强度、砂浆饱满度及挡墙类型的不同反映，在室内外模型试验和现场生产试验的基础上，提出了一种正确的无损检测法，可以正确判别浆砂片石挡墙墙身的完整性。
It shows that the resolution of the crust interface ' s shape on this four profiles is very good , nevertheless that of the velocity structure is relatively poor . the crust and upper mantle ' s fine configuration on the hq - 13 profile is obtained by our tomography , which reveals some important structure and dynamic features of this region : the velocity structure of the crust consists of three layers , the upper crust , the middle crust and the lower crust . however it also can be divided into six lateral blocks , each of them " s velocity is always higher or lower than that of its neighboring blocks 本文第五章利用有限差分反演和射线反演的方法获得了符离集?奉贤地震测深剖面( hq - 13线)精细的地壳上地幔结构剖面，揭示出下扬子地区一些重要的结构和动力学特征：地壳速度结构在纵向上大致可分上地壳、中地壳和下地壳三部分，横向上可划分为6个块体，各块体的p波速度沿测线方向呈现高速?低速?高速的组合。
Using three - dimensional tomographic imaging results of 2 ? 2 ? grid s wave velocity and 15 ' 15 ' grid average gravity anomaly in north china , this paper adopted inversion with constrained least squares method and , as a result , obtained density distribution results of six bedding surfaces in lithosphere of north china 摘要利用华北地区的2 ? 2 ?网格s波速度三维层析成像结果和15 ? 15 ?的网格平均布格重力异常，采用约束最小二乘方法反演，得到了华北地区岩石圈内6个层面上的密度分布结果。
The study on rayleigh wave characteristics in layered soil shows that shear wave velocity of soil can be attained from the raylegh wave velocity . it is well known that there is relationship between shear wave velocity and characteristics of soil . so rayleigh wave method can be used to reflect the characteristics of soil which is non - intrusive , quick , economical 许多学者对瑞利波在地基中的传播特性的研究表明，瑞利波能够反演地基土的剪切波速度，而剪切波速度跟地基土特性又有联系，因此，可以利用瑞利波法来反演地基土的特性。
