【摘要】 对大庆测井资料进行了曲线拟合,对深井摆记录地方震地表反射波进行了到时差计算和波速测定,获得了松散沉积建造地层的纵横波速比。结果表明松嫩盆地及其周边地区的浅层波速比约为3.3左右。根据此波速比,推算得泊松比=0.45。参考Peter Borman给出的数据,所反映的地质构造应为新生代,与松嫩盆地的地质结构非常相近。因此可根据浅层工程勘探测定的剪切波速度来估计浅层纵波速度。对于临时在松散沉积层组建的流动台网,采用该速度模型,定位结果可有一定改进。更多还原

【Abstract】 In this paper,we dealt with curve fitting of the Daqing logging data,conducted the time difference calculation and wave velocity measurement of the surface reflection wave recordws in the deep well pendulum,and got the loose sedimentary strata velocity aspect ratio. The results show that the shallow wave velocity ratio in Songnen Basin and its surrounding areas is about 3. 3 or so. According to the wave velocity ratio,it can be calculaied that the Poisson’s ratio is 0. 45. According to the data given by Peter Borman the reflected geological structure should be Cenozoic era and highly similar to that of Songnen Basin. So we can evaluate the P wave velocity according to the shallow layer shear velocity by shallow engineering exploration measurements. For the moving station network established on loose sedimentary strata temporarily,use of the velocity model can improve the positioning results in certain degree.更多还原