Trial Pit & Borehole
Trial Pit & Borehole
Trial Pit & Borehole
BOREHOLE
TRIAL PIT
Shallow excavations to a depth no greater 6m.
Depth
0-2m
2-4m
4-6m
Excavation Method
By Hand
Wheeled Back Hoe
Hydraulic Excavator
A DVA N TAG E S
D I S A DVA N TAG E S
Depth is limited.
using diggers.
Showing clear land strata
to facilitate rough
inspections.
HYDRAULIC EXCAVATOR
BOREHOLE
Excavations to a depth above 6m depth.
Excavation method using drilling rig
machine.
Common methodof site investigation.
ADVANTAGES
DISADVANTAGES
resources.
public.