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.%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.
展开▼
