Risk Management of Reclamation Works Using CPM Method Based on Green Construction for The Patimban Port Project Phase 1-2

This project provides structural guidance for evaluating and mitigating environmental risks in marine reclamation works utilizing the Cement Pipe Mixing (CPM) method, with a specific focus on the Patimban Port Project Phase 1-2. Adopting a structured framework aligned with ISO 31000:2018, the study systematically identifies thirty environmental risks across critical phases, with a primary focus on the dredging and pipe mixing stages where marine water quality degradation represents a significant portion of the total risk profile. To address these challenges, a Green Work Breakdown Structure (WBS), Green Schedule, and Green Cost framework are established. The methodology integrates preventive engineering controls, such as silt curtains, real-time turbidity monitoring, leak detection systems,

and material loss controls, without altering the fundamental CPM construction technique. The project analyzes the trade-offs between increased project duration, Delta Cost, and the overall Cost of Risk. This resource serves as an implementation support tool for civil engineering students to model risk registers, design mitigation workflows, and evaluate the financial and scheduling implications of integrating green construction principles into large-scale coastal infrastructure projects.

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