宿縣指揮所張時大隊工程股在工作中研究出兩種挖深方簡便收方計算法,茲介紹如下;一、單算土塘挖保加價簡便牧方計算法:此法是根據民間算地留法原理創造的?現先談以算地留法來製表的方法:如某小隊土塘長爲二公尺,寬爲三公尺,長寬相乘爲六公尺(面積),卽一公尺深爲六方土、二公尺深爲十二方土,順次相加,如加至九公尺爲止,其表如下: Shuxian Command Zhang brigade engineering unit at work to work out two kinds of dug deep side of the simple calculation method of receipt, it is introduced as follows; First, the simple calculation Tuotang digging increase simple animal husbandry method: This method is based on civil operator To create a principle of stay of law? Now talk about to stay in France to tabulate method: If a small team of earth pond length of two meters, three meters wide, length and width multiplied by six meters (area), 卽One meter deep for the six square soil, two meters deep for the twelve square soil, followed by addition, such as up to nine meters, the table is as follows: