土地整治项目土方量计算方法比选

Comparative on Earthwork Calculation Methods about Land Consolidation Project

采用DTM法和方格网法,对不同坡度、不同采样间距的田块的土方量进行计算,并对计算结果进行精度和费用分析,同时结合实际情况,将部分条田划分为格田进行计算分析。结果表明:若不考虑土方调配,方格网法适合坡度0°~2°土方量计算;DTM法计算精度更高;DTM法计算土方预算费用更低,将坡度为6°~15°对应的条田划分为格田进行平整,可以降低施工费用。总之,DTM法优于方格网法。

Using DTM method and square grid method,calculated earthwork about field different sampling interval and slope,and carried out pre-cision and costs analysis of the calculation results,at the same time,combined the actual situation,some large fields were divided into small fields for analysis.The results showed that：if turkish deployment was not considered,square grid was suitable for slope 0°~2°earthwork calculation, DTM method was higher precision and lower costs ,some large fields slope 6°~15°were divided into small fields,which was flated,construction costs were reduced.Anyway ,DTM method was better than square grid.