论文部分内容阅读
剪切波速是工程场地地震安全性评价最重要的参数之一。本文应用大量渤海浅层沉积物的剪切波速实测数据,利用最小二乘法通过三种模型探讨了不同土质类型的剪切波速与深度的关系,给出了不同土质类型的剪切波速与深度拟合最佳的统计公式。并与《构筑物抗震设计规范》的推荐公式在某一海域工程场地的测试结果进行对比分析,结果表明:本文所建立的统计公式对剪切波速的预测效果明显好于规范所推荐的统计公式。因此本文所推荐的渤海不同土质类型的剪切波速与深度间的统计公式,可供无波速测试的渤海海洋工程场地借鉴使用。
Shear wave velocity is one of the most important parameters in seismic safety assessment of engineering site. In this paper, a large number of measured data of shear wave velocity of shallow sediments in the Bohai Sea are used. By using the least square method, the relationship between shear wave velocity and depth of different soil types is discussed by three models. The shear wave velocity and depth of different soil types The best statistical formula. The results show that the statistical formula established in this paper is better than the statistical formula recommended by the code in predicting the shear wave velocity. Therefore, the statistical formulas of shear wave velocity and depth in different soil types recommended by Bohai Sea in this paper can be used for reference by Bohai offshore engineering site without wave speed test.