Appendix C Civil & Earthworks Specification

350 Pages·2016·27.43 MB·English

Appendix C
Civil & Earthworks
Specification
Deans Head Slope Remediation 19 November 2015

Revision: 0
Technical Specification for Deans Head
Reference: 241964
slope remediation
Canterbury Earthquake Recovery
Authority
Document control record
Document prepared by:
Aurecon New Zealand Limited
Level 2, 518 Colombo Street
Christchurch 8011
PO Box 1061
Christchurch 8140
New Zealand

T [phone]
F [phone]
E [email protected]
W aurecongroup.com

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Document control
Report title Technical Specification for Deans Head slope remediation
Document ID Deans Head Slope Project number 241964
Remediation
File path https://geodocs.au.aurecongroup.com/sites/CERA_PortHills/Property_Management_Working/
0368 - Deans Head Detailed Design/Deans Head_Technical Specification.docx
Client Canterbury Earthquake Client contact
Recovery Authority
Re Date Revision details/status Prepared Author Verifier Approver
v by
0 18 November 2015 For information L Collingwood LC E.VdHaterd JKupec

Current revision 0

Approval
Author signature Approver signature
Name L Collingwood Name Dr Jan Kupec
Title Senior Engineer Title Technical Director

Project 241964 File Deans Head_Technical Specification.docx 19 November 2015 Revision 0
Contents
Background for users of the Specifications 8
1 Extent of Contract 9
2 Particular requirements 10
2.1 Verification testing 10
2.2 Concrete 10
2.3 Stormwater pipes 10
2.4 Trench backfill 10
3 Preliminary and general 11
3.1 Site location 11
3.2 Site office, power, water and conveniences 11
3.3 Health and Safety (H & S) 11
3.4 Public Safety 14
3.5 Requirements of authorities 14
3.6 Noticeboard 15
3.7 Publicity and signs 15
3.8 NZTA Specifications 15
3.9 Underground services 15
3.10 Protection of Property 16
3.11 Quality Management 16
3.12 Compliance Testing by Contractor 18
3.13 Engineer’s verification and inspections 18
3.14 Setting out 19
3.15 Noise 19
3.16 Dust and sediment 19
3.17 Construction programmes 19
3.18 Hours of work 19
3.19 Site reports and meetings 19
3.20 Traffic control 20
3.21 Permanent signs and marker posts 20
3.22 Notification of works 21
3.23 Cleanliness of site 21
3.24 Removal of materials 21
3.25 Clean up and maintenance 21
3.26 Statements to the media 21
3.27 Payment 21
4 Demolition 22
4.1 Preliminary 22

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4.2 Scope 22
4.3 Permits and fees 22
4.4 Adjoining properties – precondition assessment 22
4.5 Notifiable work 22
4.6 Existing site conditions and hazardous materials 22
4.7 Utilities 23
4.8 Railings and hoardings 23
4.9 Demolition 23
4.10 Removal 23
4.11 Adjoining structures 24
4.12 Environmental management 24
4.13 Backfilling 24
4.14 Treasure 24
4.15 Payment 24
5 Clearing and stripping 25
5.1 Preliminary 25
5.2 Scope 25
5.3 Clearing 25
5.4 Disposal 25
5.5 Stripping 25
5.6 Measurement and payment 25
6 Sediment control and environmental management during construction 27
6.1 Preliminary 27
6.2 Scope 27
6.3 Design methodology 27
6.4 Techniques for managing adverse effects 27
6.5 Management of protection systems 28
6.6 Modification to protection systems 28
6.7 Environmental or property damaged 28
6.8 Measurement and payment 28
7 Excavation 29
7.1 Preliminary 29
7.2 Scope 29
7.3 Preliminary 29
7.4 Environmental management 29
7.5 Operation of plant 29
7.6 Disposal 29
7.7 Undercutting 30
7.8 Slips 30
7.9 Finished surfaces 30

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7.10 Classification of material 30
7.11 Measurement and payment 30
8 Excavation in Trench 31
8.1 Preliminary 31
8.2 Scope 31
8.3 Road opening consents 31
8.4 Surfaces 31
8.5 Opening of Trenches 31
8.6 Dewatering 31
8.7 Safety and ground support 32
8.8 Obstructions 33
8.9 Stockpiling 33
8.10 Hard rock 33
8.11 Measurement and payment 33
9 Earth fill 34
9.1 Preliminary 34
9.2 Scope 34
9.3 Surface preparation 34
9.4 Fill material 34
9.5 Placing, spreading and water conditioning 35
9.6 Compaction 35
9.7 Finished surfaces 35
9.8 Backfilling 36
9.9 Environmental management 36
9.10 Compliance testing 36
9.11 Engineer’s verification 37
9.12 Measurement and payment 37
10 Subsoil drains 38
10.1 Preliminary 38
10.2 Scope 38
10.3 Materials 38
10.4 Excavation 40
10.5 Bedding, laying, jointing, backfilling 40
10.6 Outlets 41
10.7 Protection of drains 42
10.8 Records 42
10.9 Measurement and payment 42
11 Sewers and stormwater drains 44
11.1 Preliminary 44
11.2 Scope 44

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11.3 Materials 44
11.4 Setting out 45
11.5 Excavation 45
11.6 Bedding 45
11.7 Laying and jointing 45
11.8 Inspections 46
11.9 Pipe surround and backfilling 46
11.10 Pipeline marking 47
11.11 Manholes and other structures 47
11.12 Service connections 48
11.13 Testing 48
11.14 CCTV inspections 49
11.15 As-builts 49
11.16 Measurement and payment 50
Appendix--Test Method summary 50
12 Supply and installation of polyethylene pipes 53
12.1 Preliminary 53
12.2 Scope 53
12.3 Materials 53
12.4 Excavation, bedding and backfilling 53
12.5 Handling, laying, jointing 53
12.6 Thrust blocks 55
12.7 Testing 55
12.8 Measurement and payment 55
13 Riprap 56
13.1 Preliminary 56
13.2 Scope 56
13.3 Materials 56
13.4 Placement 56
13.5 Rock filter layer 57
13.6 Payment 57
14 Granular pavement (sub-base and basecourse) 58
14.1 Preliminary 58
14.2 Scope 58
14.3 Supply of materials 58
14.4 Subgrade 58
14.5 Sub-base material 59
14.6 Placing and compaction of sub-base 60
14.7 Surface finish and tolerance – subbase 60
14.8 Basecourse material 60

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14.9 Placing and compaction of basecourse 60
14.10 Transition tapers to exisiting roads 61
14.11 Surface finish and tolerances – basecourse 61
14.12 Maintaining basecourse 61
14.13 Quality control monitoring of subbase and basecourse 62
14.14 Engineer’s verification 62
14.15 Measurement and payment 62
15 Footpath resurfacing 63
15.1 Preliminary 63
15.2 Scope 63
15.3 Standard of work 63
15.4 Weed control 63
15.5 Materials 63
15.6 Raising of services 63
15.7 Protection of services and surfaces 63
15.8 Provision of access 64
15.9 Patching 64
15.10 Weedspraying and preparations 64
15.11 Asphalt concrete overlay construction 64
15.12 Cleaning up 64
15.13 Edging and surface finish 65
15.14 Measurement and payment 65
16 Fencing 66
16.1 Preliminary 66
16.2 Scope 66
16.3 Materials 66
16.4 Setting out 66
16.5 Construction 66
16.6 Finishing 66
16.7 Gates 67
16.8 Reconstructed fencing 67
16.9 Measurement and payment 67
17 Reinstatement of surfaces 68
17.1 Preliminary 68
17.2 Scope 68
17.3 Pasture and gardens 68
17.4 Roadways and public land 68
17.5 Cleaning up 70
17.6 Measurement and payment 70
18 Grassing 71

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18.1 Preliminary 71
18.2 Scope 71
18.3 Rough grassing 71
18.4 Grassing batters 71
18.5 Sprayed Hydroseed (or similar) coatings 71
18.6 Hydroseed strike 71
18.7 Maintenance of grassed surfaces 72
18.8 Grassing street berms 72
18.9 Special grass areas 72
18.10 Re-sowing 72
18.11 Measurement and payment 73
19 Preparation, anchors and reinforcing for Shotcrete walls or rockfall netting 74
19.1 Preliminary 74
19.2 Scope 74
19.3 Soil conditions 74
19.4 Batter excavation 74
19.5 Batter trimming and regrading 74
19.6 Disposal 75
19.7 Scaffolding 75
19.8 Anchor pins 75
19.9 Anchors 75
19.10 Damage to galvanising 76
19.11 Drilling of holes for anchors 76
19.12 Installation of anchors and grouting 77
19.13 Alternative grouts 77
19.14 Anchor proof testing 77
19.15 Groundwater interception and weepholes 78
19.16 Reinforcing steel 79
19.17 Securing of face drainage and reinforcing 79
19.18 Shotcreting (sprayed concrete) and Rockfall netting 79
19.19 Site tidiness 79
19.20 Measurement and payment 80
20 Anchored Rockfall Netting 81
20.1 Preliminary 81
20.2 Scope 81
20.3 Soil conditions 81
20.4 Rock Fall Netting 81
20.5 Wire Rope 81
20.6 Ground Anchors, installation and testing 81
20.7 Cement Grout 81

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20.8 Fixings 82
20.9 Face Preparation 82
20.10 Inspections 82
20.11 Measurement and payment 82
21 Hold Points and Engineer’s Approvals 83
21.1 Hold points for Contractor’s advice to Engineer 83

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