Installation
44 /72
2017/11
010-657
3.14
Filing the pit
• Fill the pit with suitable filling material (0/16 gravel size, 50 cm all the way round), compressing the filling
material professionally every 30 cm (e.g. vibratory plate) (<2> = lean concrete wedge).
The required excavation pit slope angle β must be maintained all the way round.The assignment between
inner friction angle φ of the filling material and permissible excavation pit slope angle β is as follows:
Friction angle φ [°] Excavation pit slope angle β [°]
30 56.0
32.5 57.5
35 58.9
37.5 60.4
40 61.9