Core Viewpoint - The project involves a complex underground cable engineering in Nanjing, utilizing innovative construction techniques to mitigate noise and ensure safety due to the proximity of gas pipelines and a subway tunnel [1][3]. Group 1: Project Overview - The cable project commenced on July 19 and is scheduled for operation by June 30, 2026, covering a total length of 2.851 kilometers, including 0.967 kilometers of new construction and 1.34 kilometers of existing and planned channels [1]. - The project faces significant challenges due to the dense distribution of underground pipelines, including five gas pipeline intersections and proximity to the subway line, requiring high safety and precision standards [1][3]. Group 2: Risk Management - Understanding the layout of underground gas pipelines is crucial for risk avoidance, leading the company to collaborate with local gas companies for detailed data and employ non-invasive detection technology to accurately map pipeline locations [4][6]. - Special plans were developed for areas near gas pipelines and the subway, outlining prohibited actions, protective measures, and emergency procedures to ensure safety during construction [6]. Group 3: Safety Measures - Enhanced safety measures include real-time supervision by gas company technicians, installation of remote monitoring systems at critical points, and the use of gas detection devices to monitor gas concentration continuously [6]. - The project has established eight settlement monitoring points to ensure zero settlement and damage to pipelines and surrounding soil during construction [6]. Group 4: Project Progress - Currently, over 50 construction personnel and 15 sets of specialized equipment are engaged in the project, with mechanized operations for key processes like pipe jacking and installation [7]. - Upon completion, the project aims to optimize the power grid structure in Nanjing's Jiangbei New Area, enhancing reliability and stability of electricity supply to meet the growing demand in local manufacturing and service sectors [7].