Manitowoc GROVE GMK 6400

Rigging work
12.2 Choosing a suitable site
12 - 10 3 112 993 en Operating manual GMK 6400
12.07.2013
Load bearing capacity of the ground
• Find the load bearing capacity of the ground using the table.
H
If you are unsure about the load bearing capacity of the ground, please have
the ground tested.
APPROXIMATE VALUES FOR THE LOAD BEARING
CAPACITY OF THE GROUND
Load bearing
capacity t/m
2
(lbs/ft
2
)
Backfilled, not artificially compacted ground: 0 to 10
(0 to 2050)
Natural, apparently untouched ground:
Mud, peat, marsh 0
Non-cohesive ground which is
sufficiently firm:
Fine to
medium sand
15
(3 070)
Coarse sand
to gravel
20
(4 100)
Cohesive ground: Mushy 0
Soft 4
(820)
Stiff 10
(2 050)
Semi-solid 20
(4 100)
Hard 40
(8 200)
Rock with minimal fissures in
sound, unweathered condition
and with favourable strata:
In compact
succession of
beds
150
(30 700)
In massive or
columnar for-
mation
300
(61 400)