大型绞吸船最小挖宽和挖深的计算方法

Calculation method of minimum dredging depth and width of heavy-duty cutter suction dredger

针对大型绞吸挖泥船进行硬底质航道疏浚施工时,其最小挖宽和挖深受到限制的问题,提出通过计算确定绞吸船最小挖宽和挖深的解决方案。分别依据标准规范和船舶几何尺寸,考虑多种波浪条件下的绞吸船最小挖深挖宽计算方法,得出某工程大型绞吸船在进行航道施工时的最小挖宽和挖深,经工程实践证明该方法可行。

When a heavy-duty cutter suction dredger is used for rock channel dredging,the minimum dredging depth and width are under restrictions.We carry out the computing method of confirming the minimum dredging depth and width.We introduce the calculation method of the minimum depth and the width under different wave conditions,which is based on standard specification and geometry size of the dredger.We work out the minimum dredging depth and width by this method in a project example.The method is proved to be useful.