Excavation
APPROVED CODE OF PRACTICE FOR SAFETY IN
EXCAVATION AND
SHAFTS FOR
FOUNDATIONS
Published by the Occupational Safety and Health Service
Department of Labour
Wellington
New Zealand
September 1995
Reprinted with corrections: April 2000
ISBN 0-477-03578-7
$10 (incl.GST)
CONTENTS
NOTICE OF ISSUE............................................................... 5
FOREWORD ......................................................................... 6
SUMMARY OF THE HEALTH AND SAFETY IN
EMPLOYMENTACTANDREGULATIONS ......................... 7
Regulations
7
Approved Codes of Practice
Employers’ Duties
7
7
Hazard Management
8
Information for Employees
9
Employers to Involve Employees in the Development of Health and Safety
Procedures 9
Training of Employees
9
Safety of People who are not Employees
9
Employees’ and Self-employed Persons’ Duties
9
Accidents and Serious Harm (Recording and Notification)
10
Notifiable Works 10
1. INTRODUCTION ........................................................... 11
2. GLOSSARY OF TERMS ................................................ 12
3. SCOPE .......................................................................... 14
PART ONE: TRENCHES AND OPEN EXCAVATIONS
4. GENERAL SAFETY PROVISIONS ............................... 16
4.1
Legal Requirements
16
4.2
Modes of Failure
4.3
General Requirements
4.4
Other Safety Precautions
4.5
Blasting
16
17
21
23
5. RECOMMENDED SAFE PRACTICES FOR
EXCAVATIONS ................................................................... 24
5.1
Before Excavation
24
5.2
During Excavation
25
6. METHODS OF SHORING ............................................. 29
6.1
Protection and Support Systems
29
6.2
Safety Considerations: Do’s and Don’ts
6.3
Trenching: Safety Check List
33
33
7. OPEN EXCAVATIONS .................................................. 35
7.1
General
35
7.2
Protection and Support Systems
7.3
Safety Considerations
35
36
PART TWO: SHAFTS AND DRIVES FOR
EXCAVATION AND
SHAFTS FOR
FOUNDATIONS
Published by the Occupational Safety and Health Service
Department of Labour
Wellington
New Zealand
September 1995
Reprinted with corrections: April 2000
ISBN 0-477-03578-7
$10 (incl.GST)
CONTENTS
NOTICE OF ISSUE............................................................... 5
FOREWORD ......................................................................... 6
SUMMARY OF THE HEALTH AND SAFETY IN
EMPLOYMENTACTANDREGULATIONS ......................... 7
Regulations
7
Approved Codes of Practice
Employers’ Duties
7
7
Hazard Management
8
Information for Employees
9
Employers to Involve Employees in the Development of Health and Safety
Procedures 9
Training of Employees
9
Safety of People who are not Employees
9
Employees’ and Self-employed Persons’ Duties
9
Accidents and Serious Harm (Recording and Notification)
10
Notifiable Works 10
1. INTRODUCTION ........................................................... 11
2. GLOSSARY OF TERMS ................................................ 12
3. SCOPE .......................................................................... 14
PART ONE: TRENCHES AND OPEN EXCAVATIONS
4. GENERAL SAFETY PROVISIONS ............................... 16
4.1
Legal Requirements
16
4.2
Modes of Failure
4.3
General Requirements
4.4
Other Safety Precautions
4.5
Blasting
16
17
21
23
5. RECOMMENDED SAFE PRACTICES FOR
EXCAVATIONS ................................................................... 24
5.1
Before Excavation
24
5.2
During Excavation
25
6. METHODS OF SHORING ............................................. 29
6.1
Protection and Support Systems
29
6.2
Safety Considerations: Do’s and Don’ts
6.3
Trenching: Safety Check List
33
33
7. OPEN EXCAVATIONS .................................................. 35
7.1
General
35
7.2
Protection and Support Systems
7.3
Safety Considerations
35
36
PART TWO: SHAFTS AND DRIVES FOR
Bibliography: Telford, London, 1990. ISBN 0-7277-1385-X (6) Australian Standard AS 2865: 1995 Safe working in a confined space