基于多层次模糊评价法的船闸引航道基坑开挖风险评估
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摘要
船闸项目建设过程中的风险因素复杂多样,特别是株洲二线船闸引航道基坑施工面临着与原有一线船闸近、临水度汛造成工期紧等特点。针对这一情况,将层次分析法与模糊综合评价法相结合,采用BIM技术实时复核项目土石方开挖工程量,使风险评价过程更加客观。模糊评价风险评估结果表明,株洲二线船闸引航道基坑开挖的风险较大,存在的主要风险原因要素是:工程环境风险>现场管理风险>施工作业风险>技术因素风险>组织与管理等其他风险。评价结果可作为工程实践参考,对船闸工程项目施工的风险控制有一定的参考价值。
The risk factors in the construction of ship lock project are often complex and diverse. In particular,the construction of Zhuzhou second-line ship lock approach channel foundation pit excavation is facing the characteristics of being close to the original first-line ship lock and the tight schedule caused by flood. In view of this situation,the analytic hierarchy process( AHP) is combined with fuzzy comprehensive evaluation method,and BIM technology is adopted to review the amount of earthwork excavation project in real time to make the risk evaluation process more objective. Fuzzy evaluation risk assessment results show that the foundation pit excavation of the approach channel of Zhuzhou second-line ship lock is of great risk,and the main risk factors are: engineering environmental risk> site management risk > construction risk > technical factor risk > organization and management risk. The evaluation results can be used as a reference for engineering practice and have certain reference value for the risk control of ship lock project construction.
The risk factors in the construction of ship lock project are often complex and diverse. In particular,the construction of Zhuzhou second-line ship lock approach channel foundation pit excavation is facing the characteristics of being close to the original first-line ship lock and the tight schedule caused by flood. In view of this situation,the analytic hierarchy process( AHP) is combined with fuzzy comprehensive evaluation method,and BIM technology is adopted to review the amount of earthwork excavation project in real time to make the risk evaluation process more objective. Fuzzy evaluation risk assessment results show that the foundation pit excavation of the approach channel of Zhuzhou second-line ship lock is of great risk,and the main risk factors are: engineering environmental risk> site management risk > construction risk > technical factor risk > organization and management risk. The evaluation results can be used as a reference for engineering practice and have certain reference value for the risk control of ship lock project construction.
引文
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