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WHO
SHOULD ATTEND
All those who those who are required to excavate and support trenches
and shafts.
CONTENTS
- Construction
Regulations
- Selection
of support materials
- Types
of ground
- Causes
of collapse
- Basic
methods of support
- Services
- Excavating
shallow trenches (up to 1.5m)
- Supporting
shallow trenches
- Withdrawing
and backfilling
- Excavating
and supporting medium trenches (up to four metres)
- Backfilling
and withdrawing support
- Excavating
and supporting shafts (manholes etc.) over four metres
- Backfilling
and withdrawing support in shafts
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