Post on 16-Apr-2017
transcript
Qatar Petroleum Procedure
DESIGN & CONSTRUCT
NEW ORBITAL HIGHWAY AND TRUCK ROUTE (P023)
Contract 3: Orbital Highway Mesaieed to Salwa Road
PROJECT ID: IA 12/13 C 062 ST
26 October 2015
Date: 25/10/2015 Page 1 of 37
QP Pipe Protection Procedures
Removal of QP Pipeline bund wall
Date: 25/10/2015 Page 2 of 37
QP Pipe Protection Procedures
Date: 25/10/2015 Page 3 of 37
QP Pipe Protection Procedures
Trench Excavation close to pipeline
Excavation of hard rock material
Date: 25/10/2015 Page 4 of 37
QP Pipe Protection Procedures
Date: 25/10/2015 Page 5 of 37
QP Pipe Protection Procedures
Excavation and installation of support pedestal
Date: 25/10/2015 Page 6 of 37
QP Pipe Protection Procedures
Trimming of excavation in preparation for foundation installation
Date: 25/10/2015 Page 7 of 37
QP Pipe Protection Procedures
Excavated formation/foundation level
Date: 25/10/2015 Page 8 of 37
QP Pipe Protection Procedures
Steel plates will be set prior to installation of arch segment
Date: 25/10/2015 Page 9 of 37
QP Pipe Protection Procedures
Restricted zone during element lifting
Date: 25/10/2015 Page 10 of 37
QP Pipe Protection Procedures
Arch Elements transported on flatbed trailer
Date: 25/10/2015 Page 11 of 37
QP Pipe Protection Procedures
Off-Loading Arch elements using Lifting beam
Date: 25/10/2015 Page 12 of 37
QP Pipe Protection Procedures
Storage of Arch Elements on Firm Ground and Proper Dunnage
Date: 25/10/2015 Page 13 of 37
QP Pipe Protection Procedures
Marks on footing keyway
Date: 25/10/2015 Page 14 of 37
QP Pipe Protection Procedures
Marks on unit side face for fast alignment
Date: 25/10/2015 Page 15 of 37
QP Pipe Protection Procedures
Turning of Arch element with Side Brackets
Date: 25/10/2015 Page 16 of 37
QP Pipe Protection Procedures
Installation of steel bracket on the segment
Date: 25/10/2015 Page 17 of 37
QP Pipe Protection Procedures
First arch unit staggered by half width
Date: 25/10/2015 Page 18 of 37
QP Pipe Protection Procedures
Total Station Survey Check of Crown Alignment
Date: 25/10/2015 Page 19 of 37
QP Pipe Protection Procedures
Element in Footing Keyway (Unit position adjustment using hardwood wedges)
Date: 25/10/2015 Page 20 of 37
QP Pipe Protection Procedures
STEP 4
RELEASE CRANE B. CRANE A CONTINUES PLACING UNIT
Erection Sequence of the Elements (units)
Date: 25/10/2015 Page 21 of 37
QP Pipe Protection Procedures
Grouting Foundation Keyway
Date: 25/10/2015 Page 22 of 37
QP Pipe Protection Procedures
Fig. A. Backfill Material zones Fig. B. Backfill material grain size
Date: 25/10/2015 Page 23 of 37
QP Pipe Protection Procedures
Up to existing slope or final grade
Or minimum one span
Max
Backfill placement levels - Max. Differential height < 0.50 m
Date: 25/10/2015 Page 24 of 37
QP Pipe Protection Procedures
Crown Beam Reinforcement Prepared According to Approved Drawings
Date: 25/10/2015 Page 25 of 37
QP Pipe Protection Procedures
QP Pipe line protection structure - QP Arch Erection
Date: 25/10/2015 Page 26 of 37
QP Pipe Protection Procedures
QP Pipe line protection structure - QP Arch Erection
Date: 25/10/2015 Page 27 of 37
QP Pipe Protection Procedures
QP Pipe line protection structure - QP Arch Erection
Date: 25/10/2015 Page 28 of 37
QP Pipe Protection Procedures
QP Pipe line protection structure - QP Arch Erection
Date: 25/10/2015 Page 29 of 37
QP Pipe Protection Procedures
QP Pipe line protection structure - QP Arch Erection
Date: 25/10/2015 Page 30 of 37
QP Pipe Protection Procedures
QP Pipe line protection structure - QP Arch Erection
Date: 25/10/2015 Page 31 of 37
QP Pipe Protection Procedures
QP Pipe line protection structure - QP Arch Erection
Date: 25/10/2015 Page 32 of 37
QP Pipe Protection Procedures
QP Pipe line protection structure - QP Arch Erection
Date: 25/10/2015 Page 33 of 37
QP Pipe Protection Procedures
QP Pipe line protection structure - QP Arch Erection
Date: 25/10/2015 Page 34 of 37
QP Pipe Protection Procedures
QP Pipe line protection structure - QP Arch Erection
Date: 25/10/2015 Page 35 of 37
QP Pipe Protection Procedures
QP Pipe line protection structure - QP Arch Erection
Date: 25/10/2015 Page 36 of 37
QP Pipe Protection Procedures
Minimum fill cover before heavy plant can cross the arch
Date: 25/10/2015 Page 37 of 37
QP Pipe Protection Procedures
Table 1 — Earthworks Compaction criteria