基于CIVIL 3D航道疏浚量断面法计算的研究

Study on Cross-section Method for Calculation of Channel Dredging Amount Based on CIVIL 3D

本文采用CIVIL 3D建立了上海市某两条内河航道的部分地形模型,并用断面法建立了疏浚模型,计算了航道的疏浚工程量。所得数据与传统方法所得数据相差5%以内,符合工程实际,验证了模型的正确型。基于模型研究了断面加密对于工程量的影响,发现不同地形对工程量影响不同。为了定量说明地形的起伏性,引入地形起伏系数,得到地形起伏系数越大,相应的地形起伏性越大,为在今后描述不同地形的起伏性提供了一种新思路和方法。

CIVIL 3D is used to build a model for simulating two inland waterways in Shanghai.And the cross-section method applies to the establishment of a dredging model which produces the amount of channel dredging.The difference between new data and traditional data is within the range of 5%,which verifies the model correct.The effect of cross-section encryption on the amount of work is studied on the basis of the model,which shows that different terrains affect the project more or less.In order to quantify what the undulated terrain is,the terrain undulating coefficient is introduced,i.e.higher coefficient means more undulated terrain.The analysis result serves as a new idea and method to describe different undulated terrains.