青岛海洋大桥桥基岩石点荷载与抗压强度相关性分析

岩石的点载荷强度和岩石单轴抗压强度试验，规范给出了二者之间转换的经验公式，但精度较差。根据青岛海洋大桥桥址区勘察所取得的18组软岩和44组硬岩的相关数据，运用统计学方法，对岩石点载荷和岩石抗压强度二者之间的关系进行了统计学分析。结果表明:软岩的转换关系式为Rt=-0.495+13.715·Is（50）；硬岩的转换关系式为Rt=11.158+9.203·Is（50）。该转换方程用于胶州湾地区岩石强度转换，提高了精度。

Analysis on Correlation between Point Load and Compressive Strength of Rock for Foundation of Ocean Bridge in Qingdao

The tests for rock point load strength and uniaxial compressive strength gives the empirical equation for conversion between the both;however the accuracy is poor.According to the related data of 18 groups of soft rock and 44 groups of hard rock obtained through investigation in the area of Ocean Bridge and through statistical method,the relationship between point load and compressive strength is analyzed.The result shows that the relationship for soft rock is and that for hard rock is.These equations for the strength conversion of rock in Jiaozhou Bay Area are more accurate.