| Compared to other bridges and culverts subgrade, railway tunnel construction works have hidden a large, complex geological conditions and other characteristics. In recent years, China’s railway tunnel construction also often an accident. So pay attention to the railway tunnel construction risk management, help prevent accidents, ensure that the entire railway construction projects carried out smoothly.This selection Shichang Railway increased second-tier oak Bay Tunnel, for example, the use of risk management theory and research, in accordance with risk management:risk identification, risk analysis, risk assessment and risk response process, specifically on the oak tree Bay Tunnel studied. There are about findings:First, stone long railway line, for example, the use of checklists France identification oak Bay Tunnel construction risk, the risk of Oak Tree Bay Tunnel into two major categories:construction technology and construction risk management risk. Which slipped construction technology risks include slope collapse, collapse cave, affect business lines, four kinds of environmental pollution, risk management including quality risk, security risk, schedule risk and cost risk. Then, depending on the characteristics of the railway tunnel construction, the traditional risk assessment model was modified, the first of each risk factor for threat identification, vulnerability identification, asset identification, and then the frequency of occurrence of threats and vulnerabilities to determine the severity of risk probability. According to vulnerability severity and consequences of the asset value to determine the risk value; Finally, according to the value of risk and risk the consequences of probability values to determine the risk level. The use of the risk matrix Zhashuwan tunnel construction risk assessment. Finally, oak Bay Tunnel construction risk, both from a technical and management measures to address. This article contains9Figures,23Tables,44references. |
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