浅析某渔港深厚淤泥抗剪强度指标随深度变化的规律

Analysis of the Variation of Shear Strength Index of Deep Silt in a Fishing Harbor with Depth

为了研究淤泥抗剪强度指标随深度的变化规律,文中以福鼎市龙安开发区东北侧海域淤泥为例,对所取试样进行了直接剪切、固结快剪及三轴剪切试验,同时在部分孔内进行原位十字板剪切试验,并对其数据进行回归统计规律分析。结果表明,随着深度的增加,该区域淤泥含水率呈下降趋势,黏聚力呈上升趋势,内摩擦角随深度变化不明显。

In order to study the variation of the shear strength index o fsilt with depth,this study took the silt in the northeasterns ea area of Long'an Development Zone in Fuding City as an example,conducted direct shear,consolidation fast shear,and triaxial shear tests on the samples taken,and conducted in-situ vane shear tests in some holes.The data were analyzed statistically and the laws were analyzed.The analysis results show that rate of water content of the silt in this area decreases with increasing depth,while the cohesion increases.The internal friction angle does not vary significantly with depth.