The shear‐wave velocity (⁠VS⁠) in soil is an important parameter to characterize dynamic soil properties. The Delaney Park downhole array was deployed in 2003 without measuring the shear‐ and compression‐wave velocity (⁠VS and VP⁠) profiles. Thornley et al. (2019) measured the VS and VP profiles using the downhole method after the sensor was removed from the 61 m borehole with casing in the array. However, the waves propagating along the casing wall may have a great influence on the recognition of the first arrival of waves propagating in the soil. Using horizontal and vertical components of weak‐motion data of eight local earthquakes recorded by the array, in situ VS and VP profiles were assessed by the seismic interferometry based on deconvolution, respectively. The results are as follows. The VS and VP profiles computed by this study and measured by Thornley et al. (2019) are in relatively good agreement at a depth of 10–45 m and at a depth of 30–45 m, respectively, and in very poor agreement at other depths. The average VS profiles computed by this study are more consistent with the derived VS from the standard penetration test data at the site with slower near‐surface velocities relative to the downhole logging analysis. There are strong anisotropy in the strata below 45 m and weak anisotropy with various degrees at various depths in the strata above 45 m.

中文翻译：

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在阿拉斯加安克雷奇Delaney Park井下阵列进行原位剪切波速评估

土壤中的剪切波速度（⁠VS⁠）是表征土壤动态特性的重要参数。Delaney Park井下阵列于2003年部署，未测量剪切波和压缩波速度（⁠VS和VP⁠）剖面。Thornley等。在将传感器从61 m井眼中移除后，（2019）用井下方法测量了VS和VP剖面。但是，沿套管壁传播的海浪可能会对在土壤中传播的海浪的首次到达的识别产生很大影响。利用阵列记录的八个局部地震的弱运动数据的水平和垂直分量，通过基于反褶积的地震干涉法分别评估了原位VS和VP剖面。结果如下。这项研究计算出的VS和VP曲线由Thornley等人测量。（2019年）分别在10-45 m的深度和30-45 m的深度有较好的一致性，而在其他深度则一致性很差。这项研究计算的平均VS剖面与从标准渗透测试数据中得出的VS更加一致，相对于井下测井分析而言，其近地表速度较慢。45 m以下地层各向异性强，45 m以上不同深度地层各向异性程度不同。这项研究计算出的平均VS剖面与从标准渗透测试数据中得出的VS更加一致，相对于井下测井分析而言，其近地表速度较慢。45 m以下地层各向异性强，45 m以上不同深度地层各向异性程度不同。这项研究计算出的平均VS剖面与从标准渗透测试数据中得出的VS更加一致，相对于井下测井分析而言，其近地表速度较慢。45 m以下地层各向异性强，45 m以上不同深度地层各向异性程度不同。