日照港区风化花岗岩力学指标和疏浚参数相关性分析

Correlation analysis on mechanical index of weathered granite and dredging parameters in Rizhao port

以山东日照港区重型绞吸船开挖风化花岗岩为例,依据疏浚区域岩石性质进行疏浚区域划分,进行风化花岗岩力学指标和疏浚参数相关性分析,建立疏浚区域风化花岗岩力学指标标准贯入击数和疏浚参数经验性公式。基于疏浚工程施工中疏浚生产率、风化花岗岩的分布和力学性质的相互关系,将重型绞吸船开挖日照港风化花岗岩的难易程度进行等级划分,为重型绞吸船开挖风化花岗岩提供施工技术支持。

Taking the excavation of weathered granite by high-power cutter suction dredger as an example in Rizhao port, Shandong, we carry out the division of dredged region according to rock property, and establish the empirical formula based on the correlation between mechanical index standard penetration number of weathered granite and dredging parameters. Based on the relationship between productivity in dredging engineering, weathered granite distribution and mechanical property, we rank the dredging difficuhy degree of weathered granite excavation on high-power cutter suction dredger, and it provides？a technical support for similar construction of dredging engineering