The document outlines the installation method for prefabricated vertical drains (PVD), including detailed processes for transportation, equipment use, quality control, and preparation of working platforms. It specifies procedures for monitoring embankment performance, pore pressure, and lateral soil movement using inclinometers, along with requirements for drainage systems. Additionally, it emphasizes the importance of obtaining approvals for all materials and methods before commencing installation, as well as maintaining thorough documentation and data collection throughout the project.