曹妃甸海底深槽斜坡稳定性分析与评价
发布时间：2018-12-25 13:48
【摘要】：海底斜坡稳定性受风暴潮、海底地震等诸多不确定因素影响,易发生失稳破坏,产生较大的海洋地质灾害。简要介绍海底斜坡稳定性分析方法,建立曹妃甸深槽典型斜坡计算模型,确定了模型计算的海底地形参数、地层结构参数、土体物理力学参数等指标,利用GEO-SLOPE斜坡分析软件进行海底斜坡稳定性定量计算,分析了工程建设前自然状态下以及在大规模工程建设后海底斜坡稳定性,并模拟分析了在大风浪和地震等极端条件下斜坡的稳定性,确定了海底斜坡失稳空间特征。首次采用数值计算对曹妃甸海底斜坡稳定性进行定量分析评价,可以为类似近海建设工程提供重要的参考作用。
[Abstract]:The stability of submarine slope is affected by many uncertain factors such as storm surge, submarine earthquake and so on. This paper briefly introduces the stability analysis method of submarine slope, establishes the calculation model of typical slope in Caofeidian deep trough, and determines the parameters of submarine topography, stratum structure and physical mechanics of soil mass calculated by the model. The stability of submarine slope is calculated quantitatively by using GEO-SLOPE software. The stability of submarine slope is analyzed under natural state before construction and after large-scale construction. The stability of the slope under extreme conditions such as strong wind waves and earthquakes is simulated and analyzed and the spatial characteristics of submarine slope instability are determined. For the first time, numerical calculation is used to quantitatively evaluate the stability of submarine slope in Caofeidian, which can provide an important reference for similar offshore construction projects.
【作者单位】： 国土资源部海洋油气资源与环境地质重点实验室青岛海洋地质研究所;海洋国家实验室海洋矿产资源评价与探测技术功能实验室;
【基金】：国家自然科学基金项目(41276060) 国家专项(GZH201200504)
【分类号】：P751;P642.2
本文编号：2391210
[Abstract]:The stability of submarine slope is affected by many uncertain factors such as storm surge, submarine earthquake and so on. This paper briefly introduces the stability analysis method of submarine slope, establishes the calculation model of typical slope in Caofeidian deep trough, and determines the parameters of submarine topography, stratum structure and physical mechanics of soil mass calculated by the model. The stability of submarine slope is calculated quantitatively by using GEO-SLOPE software. The stability of submarine slope is analyzed under natural state before construction and after large-scale construction. The stability of the slope under extreme conditions such as strong wind waves and earthquakes is simulated and analyzed and the spatial characteristics of submarine slope instability are determined. For the first time, numerical calculation is used to quantitatively evaluate the stability of submarine slope in Caofeidian, which can provide an important reference for similar offshore construction projects.
【作者单位】： 国土资源部海洋油气资源与环境地质重点实验室青岛海洋地质研究所;海洋国家实验室海洋矿产资源评价与探测技术功能实验室;
【基金】：国家自然科学基金项目(41276060) 国家专项(GZH201200504)
【分类号】：P751;P642.2
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