Research on Duration Estimation of Ling Shan Tunnel Engineering

摘要

The South-to-North Water Diversion is a tough and groundbreaking project of a province. Ling Shan tunnel is a key engineering which has many uncertain factors and complex problems in construction. In order to implement the project smoothly, is worth to research how to establish a scientific and reasonable construction schedule. The paper is based on the data of five similar tunnel engineerings, applying information diffusion theory to the construction progress network diagram so as to estimate main work time and determine the key circuit. Therefore, the project managers can calculate the total duration of Ling Shan tunnel engineering more accurately and offer reliable evidence for the follow-up engineerings.