Method Statement

INTRODUCTION 1.1 GENERAL The purpose of this procedure is to describe the Self-Launching of Launching Gantry through station having all platforms constructed and launching over 15m span in Ho Chi Minh City Metro Line 1 Project 1.2 SCOPE OF WORK This procedure describes the following operations: Self-launching of Launching Gantry through station having all platforms constructed Self-launching of Launching Gantry over 15m span 1.3 DEFINITIONS LG Launching Gantry WT Winch Trolley MG Main Girder SB Spreader Beam FS Front Support FH Front Head RS Rear Support RH Rear Head AS Auxiliary Support HS Hanging System CG Centre of Gravity   RELEVANT SPECIFICATIONS, STANDARDS AND DOCUMENTS • Self-launching through stations completed & 15m span – as attached FVR-TEC-DWG-3240-010 • Launching Girder – Use & Maintenance Manual

1. INTRODUCTION 1.1 PROJECT DESCRIPTION 1.2 SCOPE OF WORK 1.3 GENERAL 1.4 DEFINITIONS 1.5 WORK-FLOW CHART 2. RELEVANT SPECIFICATIONS, STANDARDS AND DOCUMENTS 3. INSTALLATION PROCEDURE 3.1 PRELIMINARY CHECKS BEFORE LG SELF-LAUNCHING 3.2 TYPICAL INSTALLATION OF BEARINGS 3.2.1 Remove Permanent Bearings (PB) 3.2.2 Installation of Temporary Bearings (TB) 3.2.3 Installation of span alignment system 3.2.4 Remove Temporary Bearings & installation of Permanent Bearings 3.