A few tons of subway mud.

1. First convert a mud into weight, and the weight of the mud is equal to the weight of the soil, and then convert the unearthed amount.

2. The conversion formula is: mud mass = mud volume x mud density; Soil volume = soil quality, soil density.

3. In the formula, the unit of volume is expressed in cubic meters and the mass unit is expressed in tons.

4. converted mud quality: mud density is 1.8t/m3. 1 cubic x 1.8= 1.8 tons.

5. 1.8 tons of mud equals 1.8 tons of soil.

6. Converted soil volume: the density of soil is about 2.6 tons/m3. 1.8 tons ÷2.6=0.69 cubic meters. One side of soil = 1.8 tons ÷0.69 cubic meters =2.6 1 ton.