机械工厂的竖向布置是总图运输设计中的重要组成部分,而竖向布置设计中的必要工作之一,就是土方计算。过去常用的土方计算方法,是20公尺×20公尺的小方格网计算法。这种方法非常繁琐,假如有一个占地20公顷左右的中型厂,在它的土方工程图上就要写上一万个左右的数字,一个熟练的设计工作者,也要大约5个工作日才能完成;而且还要一次就把标高定合适,没有什么大的返工才行。这里也还没有包括描图所需的工作 The vertical layout of the mechanical plant is an important part of the general plan transportation design, and one of the necessary tasks in the vertical layout design is earthwork calculation. The commonly used earthwork calculation method in the past was a square grid calculation method of 20 meters by 20 meters. This method is very tedious. If there is a medium-sized plant covering about 20 hectares, about ten thousand figures will be written on its earthwork drawings. A skilled design worker will also need about five working days. Can be completed; but also once set the appropriate elevation, there is no big rework. Here also does not include the work required for tracing