College of Social Sciences, College of law, College ofShari’a & Islamic Studies, Pray Area and Faculty Club(1) SABAH AL- SALEM UNIVERSITY CITY, KUWAIT UNIVERSITY METHOD STATEMENT FOR INSTALLATION AND TESTING OF HDPE PIPES & FITTINGS (Specification Section 15410) Doc.No: KU/SPCL/NBTC/PL-01 Date: 12.09.2015 CLIENT : SABAH AL-SALEM UNIVERSITY CITY, KUWAIT UNIVERSITY PROJECT MANAGEMENT : TURNER PROJACS CONSULTANT : PAGE INTERNATIONAL LTD in association with SQC INTERNATIONAL MAIN CONTRACTOR : SHAPOORJI PALLONJI AND COMPANY LTD SUBCONTRACTOR : NASER M.AL-BADDAH & PARTNER GENERAL TRADING & CONTRACTING CO.W.L.L. Page 1 of 6 precautions to observe during unloading.College of Social Sciences. Leveling.No: KU/SPCL/NBTC/PL-01 Date: 12. Waste. Above Grade: (High level) Scaffolding. shifting of pipes to desired locations. laying and supporting of pipes. Excavation Trench preparation. Dewatering if necessary. All works shall be carried out in accordance to Site Safety rules and regulations as guided by the Engineer. Testing. storage. Installation and Testing Sequence for Above & Below grade HDPE Pipes and Fittings.SALEM UNIVERSITY CITY. Testing Page 2 of 6 . Pray Area and Faculty Club(1) SABAH AL. Inspection for pipe/fitting Installation.1 Sequence of the work: Below Grade: Marking the layout and routing of pipes.0 INTRODUCTION: This Method Statement specifies the Installation and testing procedures for HDPE Soil. College of Shari’a & Islamic Studies. Vent and Rain water / Storm water drainage pipes & Fittings.09. Pipe joining installation.2015 1. Inspection for pipe/fitting Installation.0 SCOPE: The aim of the method statement is to set out the procedures. This method statement shall be read in conjunction with the applicable project specification and testing. College of law. Drilling for supports Installation of pipes with proper level & alignment Pipe joining installation.0 WORKS SEQUENCE AND METHODOLOGY: 3. 2. Marking the layout and routing of pipes. 3. KUWAIT UNIVERSITY METHOD STATEMENT FOR INSTALLATION AND TESTING OF HDPE PIPES & FITTINGS (Specification Section 15410) Doc. If the pipes arrive at site in loose form. Unload pipe bundles mechanically. Execution 3.2 Materials receipt. Make sure pipes are stacked in a pyramid manner or make sure the pipes are stacked properly with supports at both sides. Pipes and fittings shall not be drag or drop.3.No: KU/SPCL/NBTC/PL-01 Date: 12. Check whether the area is clear for installation. KUWAIT UNIVERSITY METHOD STATEMENT FOR INSTALLATION AND TESTING OF HDPE PIPES & FITTINGS (Specification Section 15410) Doc.3.SALEM UNIVERSITY CITY.1. Details of the material receipt will be conveyed to the MEP Project Engineer and Quality Engineer.3. Pray Area and Faculty Club(1) SABAH AL. 3. Handling & Storage 3. College of Shari’a & Islamic Studies. 3.2.2. use manual lifting or forklift as per the site facility available. Review the Risk assessment with the current site conditions.College of Social Sciences. Material Storage: Pipes should be laid on a reasonably flat surface free from large stones or sharp projection All Pipes shall be covered and shall not be exposed to direct sunlight. Material Handling: Use hand gloves for shifting / unloading / loading / handling. College of law.2. it can be unloaded manually. Related material information’s will be conveyed to the Engineer and will be integrated with requirements and procedures of the Engineer 3.09. Page 3 of 6 . as per delivery note and approved material submittal to ensure delivery is correct. Pipes and pipe fittings shall be handled as per the manufacturer’s instructions.1 Preparatory Works Check the availability of latest approved working drawing. etc.2015 3. Pipes stacks should not exceed seven layers or 2 meters in height. Pipes shall be distributed to the installation site only in such quantities as can be installed in one working day or as allowed by the Engineer.2. Material Receipt: The materials received at site stores / site shall be checked for manufacture details. 2.2015 Check the size and class of pipes as per drawing / Material Submittal. Area drain. Make sure that pipes are cut properly to 90°. inspection of trench before and after trench preparation etc. Make sure that pipe & fitting are correctly aligned. 3.09.3. The wooden box shall be provided for future provisions with required sizes & location as per the approved drawing before concreting works. KUWAIT UNIVERSITY METHOD STATEMENT FOR INSTALLATION AND TESTING OF HDPE PIPES & FITTINGS (Specification Section 15410) Doc. Trench drain. College of law.College of Social Sciences. Position the pipe in the raft foundation at given / required level as per approved construction drawing and verify it with leveling instrument. trench supporting. Make sure that the pipe or fittings are dry. College of Shari’a & Islamic Studies. Pray Area and Faculty Club(1) SABAH AL. WC outlets.3.3. Pipes are joined together by butt welding & electro fusion welding will be applied wherever required. De-burr the edges. clean both end of the pipe and fittings for necessary thermal fusion. Page 4 of 6 . Oil & Grease Interceptor should be coordinated with steel structure works. Future provision for floor drain. Check for any physical damage to the pipes and fittings.No: KU/SPCL/NBTC/PL-01 Date: 12. Trench Preparation and Supports Refer Method Statement for Excavation and Backfilling for Pipes.SALEM UNIVERSITY CITY. Mark the location of trench preparation for laying pipes. HDPE Pipe & Fitting Installation Cut the pipe to the required length with a pipe cutting tool as per manufacturer recommendations. The trench should not be excavated too far in advance of pipe laying and should be backfilled as soon as possible. execution. clean and free from grit for pipe fittings. which will covers all the activities related to trench preparation. 3. Preparation of Pipe Supports at specified intervals and designated levels as per approved piping layout shall be completed before Pipe Installations inside the trench. Trench widths should be narrow as practicable but not less than pipe OD plus 300mm to enable proper compaction of side fill. Page 5 of 6 . ensuring that they observe the requirements pertaining to Safety and Quality for this work. Hydro static test: Flush the all drainage pipes with clean water to remove all dirt / debris before conducting the hydrostatic test. College of Shari’a & Islamic Studies. KUWAIT UNIVERSITY METHOD STATEMENT FOR INSTALLATION AND TESTING OF HDPE PIPES & FITTINGS (Specification Section 15410) Doc.09. Stage inspection and notification to QC and the Engineer as applicable. The plugs can be temporally opened by using bleeding caps to make sure that all air has been vented and that water has reached all parts of the system. On completion of each pipe section. The sewer or drain under test should be left with filled water for 1 – 2 hours. equipment and materials for safe and timely completion of work. During the water test. Pray Area and Faculty Club(1) SABAH AL.No: KU/SPCL/NBTC/PL-01 Date: 12.3. strutting precautions should be taken to prevent any movement of the drain or sewer.College of Social Sciences. the test pressure will be maintained for minimum 1 hour and witnessed by QA/QC Engineer. foremen. Installation check list to be issued for consultant approval. check and adjust if necessary to ensure the proper level and alignment of pipe then fix proper clamp to maintain its location & level After completing the pipe works.4. All openings in the piping will be tightly closed by compression type rubber plug with bleeding caps and the system filled with water to the point of overflow from the highest point.0 RESPONSIBILITIES: 4. specification and recommendations. Coordinate all supervisors. the defective pipe / fitting should be immediately replaced with new joints and approved materials.1 Site Engineer He shall be responsible for the complete activity including. Ensure the quality of work as per the approved shop drawings. 3. College of law. compression type rubber plugs with bleeding caps to be installed for drain outlets & one outlet to be extended to 3 mtr height for testing.1. After the correction is made.SALEM UNIVERSITY CITY. Manage manpower. but not limited to: Work planning and risk assessment at work place.2015 100% Visual inspection will be carried out for all fusion joints. 4. If any leaks in joints or evidence of defective pipe or fittings are revealed. 4.1. safety barriers and signboard) and ensure availability of first aid box prior to start any activity at site.2015 Taking action to closing non conformances reports. Ensure that method statement is followed strictly and implemented at site.1. College of Shari’a & Islamic Studies. He shall be responsible for the execution techniques and control with respect to this Method Statement and reference documents. (Safety belt. Pray Area and Faculty Club(1) SABAH AL. KUWAIT UNIVERSITY METHOD STATEMENT FOR INSTALLATION AND TESTING OF HDPE PIPES & FITTINGS (Specification Section 15410) Doc. Helmets. Maintaining records of calibration. ensuring that tool box talks are conducted regularly by supervisors. safety shoes etc. equipment to the work site and assigning workman crew prior to commencement of work. Confirming materials used at site are as per approved Material Submittal. Ensure that all Plumbers / Assistant plumbers use all safety tools.No: KU/SPCL/NBTC/PL-01 Date: 12. 4. Documentation of test records and stage inspection. area manager and other related concerns.0 SAFETY: Inspect work area & apply safety measures (warning tape. To prepare daily progress report and send to planning. Extra lighting arrangements to be provided during night shift &dull day light time as additional safety requirement. inspection and testing equipment. Work site shall be kept clean and tidy & ensure housekeeping on daily basis before leaving job site. tools.09.) Trained / Experienced labors to be utilized for installation of scaffolding & the same to be checked by safety representative.4.1.SALEM UNIVERSITY CITY. College of law. Reporting and monitoring of non-conformance status. Site Supervisor / Foreman Conducting Tool Box talks to explain the work procedure and maintain safety guidelines. Other Execution Personnel Competent Plumbers Stores Personnel 5.College of Social Sciences. 4. Gloves. Ensure that latest shop drawings are being used at site. Organizing all necessary material. QC Engineer / Inspector QC Engineer shall be overall responsible for QC activities. Page 6 of 6 . Witnessing all Checks / Tests.2.3. Goggles.