How big is the mason's shovel?

When the grader is in construction, it is necessary not only to cut the soil layer, but also to constantly move the soil side to the outside of the grader's driving route. Therefore, the blade length l consists of the length i 1 of the cutting part of the blade and the length I2 of the non-cutting part.

The length l of the soil cutting part of the bucket can be obtained by the following formula:

l=

Where: p-cutting resistance of shovel, kn;

K—— specific cutting pressure (see table 1), kPa；;

H—— average cutting thickness, m

The length l of the non-cutting soil part can be directly found from the curve shown according to the excavation area a and the inclination angle ε of the shovel. The total length of the blade is:

L=

2.2 blade height h

H:cb≈

In which: half of the cross-sectional area of China.