NIOEC-SP-10-16(0)
DOCUMENT CODE NO. OF SHEETS: 4
PLAN/PRJ/SUB UNIT PHASE DISCIPLANE DUCUMENT TYPE SERIAL NO. REV. NO. DATE
NIOEC 000 EG CE SP 1016 A0 JULY 2005
NATIONAL IRANIAN OIL REFINING & DISTRIBUTION COMPANY
NATIONAL IRANIAN OIL ENGINEERING
& CONSTRUCTION COMPANY
NIOEC SPECIFICATION
FOR
RETATNING WALLS AND SLOPE PROTECTION
FIRST EDITION
JULY, 2005
THIS SPECIFICATION IS THE PROPERTY OF NATIONAL IRANIAN OIL ENGINEERING & CONSTRUCTION COMPANY. IT IS CONFIDENTIAL AND ALL RIGHTS
RESERVED TO THE OWNER. NEITHER WHOLE NOR ANY PART OF THIS DOCUMENT MAY BE DISCLOSED TO ANY THIRD PARTY, REPRODUCTED, STORED
IN ANY RETRIEVAL SYSTEM OR TRANSMITTED IN ANY FORM OR BY ANY MEANS WITHOUT THE PRIOR WRITTEN CONSENT OF THE NATIONAL
IRANIAN OIL ENGINEERING & CONSTRUCTION COMPANY.
JULY, 2005 NIOEC-SP-10-16 ( 0 )
JULY, 2005 NIOEC-SP-10-16 (0)
REVISION INDEX
REV. REV. REV. REV.
1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5
PAGE PAGE PAGE PAGE
1 26 51 76
2 27 52 77
3 28 53 78
4 29 54 79
5 30 55 80
6 31 56 81
7 32 57 82
8 33 58 83
9 34 59 84
10 35 60 85
11 36 61 86
12 37 62 87
13 38 63 88
14 39 64 89
15 40 65 90
16 41 66 91
17 42 67 92
18 43 68 93
19 44 69 94
20 45 70 95
21 46 71 96
22 47 72 97
23 48 73 98
24 49 74 99
25 50 75 100
NOTES:
1) THIS SHEET IS A RECORD OF ALL REVISIONS TO THIS SPECIFICATION.
2) REMARKS RELATED TO EACH REVISION SHOW A BRIEF DESCRIPTION. THESE REMARKS SHALL BE
INTERPRETED IN CONJUNCTION WITH THE REVISED TEXT MARKED BY REVISION NUMBERS.
3) WHEN APPROVED EACH REVISION SHALL BE CONSIDERED AS A PART OF THE ORIGINAL
DOCUMENT.
4) NUMBER OF PAGES EXCLUDES THIS SHEET AND THE COVER SHEET.
1
0 JULY, 2005 M.J.RUNIASSY S.M.J.SEYEDI M.R.FARZAM M.A.A.SAJEDI
REV. DATE PREPARED CHECKED APPROVED AUTHORIZED
1
JULY, 2005 NIOEC-SP-10-16 (0)
CONTENTS: PAGE NO.
0. INTRODUCTION...................................................................................................................... 3
1. SCOPE ........................................................................................................................................ 3
2. REFERENCES........................................................................................................................... 3
2.1 EQUIVALENT TO IPS STANDARDS ............................................................................... 4
3. UNITS ......................................................................................................................................... 5
4. DEFINITIONS AND TERMINOLOGY ................................................................................. 5
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JULY, 2005 NIOEC-SP-10-16 (0)
0. INTRODUCTION
To satisfy the requirement of this NIOEC Specification, Iranian petroleum standard,
IPS-E-CE-140 with the modifications as specified herein after shall be strictly followed.
Articles 0. through 4. of this document replace entirely the related articles in the reference
IPS Standard .
1) SCOPE
NIOEC Specifications cover the general requirements of detailed engineering, procurements,
testing, inspection and construction of refinery/oil plant, distribution, depots, pump station and
pipelines.
This Specification deals with different aspects of design principles and analyses of retaining
walls and slope protection methods for cuttings and embankments as may be encountered in
various civil engineering projects in the field of petroleum industries.
It includes different types of earth retaining walls and slope protection methods, but excludes
water front structures such as quay walls, jetties etc. except those structures common in both
fields. This Specification excludes the structural analysis of reinforced concrete, and temporary
support of excavations, for which, reference is made respectively to NIOEC-SP-10-01 and
NIOEC-SP-00-02.
This Specification deals with general terms and requirements and its application to any
particular project may be subjected to the special requirements of the work under
consideration.
2) REFERENCES :
Throughout this Specification the following dated and undated standards/codes are referred
to these referenced documents shall, to the extent specified here form a part of this
Specification.
For undated references, the latest edition of the referenced document (including any
supplements and amendments) applies. For dated references, the edition cited applies.
The applicability of changes in dated references that occur after the cited date, shall mutually
be agreed upon by NIOEC and Vender / Contractor
NIOEC-SP (NIOEC SPECIFICATIONS )
NIOEC-SP-00-01 “NIOEC-Specification for Civil Design Criteria ”
NIOEC-SP-00-02 “NIOEC-Specification for site preparation Earthwork and sewers”
NIOEC-SP-00-03 “NIOEC-Specification for Ground Treatment and Trial Tamping ”
NIOEC-SP-00-04 “NIOEC-Specification for Foundation for storage tank ”
NIOEC-SP-00-10 “NIOEC-Specification for Units ”
NIOEC-SP-00-05 “NIOEC-Specification for Excavation and Backfill for Concrete
work ”
NIOEC-SP-10-15 “NIOEC-Specification for on shore Facilities ”
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JULY, 2005 NIOEC-SP-10-16 (0)
NIOEC-SP-10-03 “NIOEC-Specification for Low Temperature Protection for
Concrete.”
NIOEC-SP-10-01 “NIOEC-Specification for Concrete ”
NIOEC-SP-10-12 “NIOEC-Specification for Piles ”
NIOEC-SP-10-16 “NIOEC-Specification for Retaining walls and slope protection”
NIOEC-SP-10-17 “NIOEC-Specification for Soil Engineering ”
BSI ( BRITISH STANDARD INTITITE )
BS 5930 : 1981 “ Code of practice for site investigation ”
BS 6031 : 1981 “ Code of practice for earthwork Maritime ”
BS 6349 : 1984 “ Structures, general criteria ”
BS 6349 : Part 1 : 1984 “ Maritime Structures Design of quay wall, jetties and Dolphins
BS 8004 : 1986 “ Code of practice for foundations ”
BS 8007 : 1987 “ Design of concrete structures for retaining aqueous liquid ”
IPS ( IRANIAN PETROLUM INSTATUTE )
IPS-E-CE-140 “ Engineering Standard for Retaining Walls & Slope Protection”
2.1 Equivalent to IPS Standards
Substitute the following IPS standards as referred to throughout IPS-E-CE-140 to relevant
NIOEC's Specifications as follows :
IPS Standard Relevant NIOEC Specification
IPS-E-CE-110 NIOEC-SP-10-17
IPS-E-CE-200 NIOEC-SP-10-01
NIOEC-SP-00-01
IPS-E-CE-120 NIOEC-SP-00-04
NIOEC-SP-00-01
IPS-E-CE-140 NIOEC-SP-10-16
IPS-C-CE-112 NIOEC-SP-00-02
NIOEC-SP-00-03
NIOEC-SP-00-05
IPS-E-CE-470 NIOEC-SP-10-15
IPS-E-EC-130 NIOEC-SP-10-12
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JULY, 2005 NIOEC-SP-10-16 (0)
3) UNITS
International system of unites (SI) shall be used in accordance with NIOEC-SP-00-10,
unless otherwise specified.
4) DEFINITIONS AND TERMINOLOGY
The following terms are defined for general use in this Specification.
- Diaphragm wall:
A system of construction in which a bentonite slurry is employed to maintain a pressure
head and stabilize a trench being formed with boring or grabbing equipment. When the
required depth has been reached the trench is concreted from the bottom upward,
displacing the slurry for removal.
- Gabions:
Stone-filled steel wire baskets which can be assembled or stacked like building blocks to
act as retaining walls or provide slope and erosion protection.
- Gravity wall:
A retaining wall of heavy cross section that resists horizontal loads by means of dead
weight.
Note:
The dead weight may be augmented by ground anchors.
- Index properties:
Refers to those properties that indicate the type and condition of soil. The tests required
to determine the index properties are called classification tests.
- Retaining wall:
Structures intended to hold back masses of earth or other loose material where conditions
make it impossible to let those masses assume their natural slopes.
- Sheet Piling:
A pile with a generally flat cross section, made to interlock with adjoining sections to
form a thin diaphragm wall or bulkhead, used to resist the lateral force of retained earth
or water when part of temporary and permanent structures.
- Weephole:
In wet ground a hole generally provided through retaining walls to allow the discharge of
water so as to prevent the development of excessive hydrostatic head of water.
