特殊地质地区的施工决策极为重要且复杂多变，地质条件的不确定性会直接影响施工方案的选择和实施。为解决西南复杂特殊地质地区桥梁工程施工方案“五控”目标（工期、成本、质量、安全、环保）之间非均衡性难题，将网络计划技术与建筑信息模型（building information modeling, BIM）可视化技术、模糊集理论和灰色关联分析（grey relational analysis, GRA）集成应用到复杂特殊地质地区桥梁工程施工方案优选中，建立基于工期-成本-质量-安全-环保的混合模糊多属性决策模型（hybrid fuzzy multi-attribute decision-making model, HFMD），并运用Python与BIM技术构建施工过程可视化系统，辅助管理人员进行决策，结果满足“五控”指标综合优化方案，并且工期提前10 d，成本降低3.1%，证明了此模A型和方法的实用性和有效性。为复杂特殊地质地区桥梁工程施工方案决策提供了参考。

The construction decision of special geological area is very important and complicated. The uncertainty of geological conditions will directly affect the selection and implementation of construction scheme. In order to solve the non-equilibrium problem among the "five control" objectives (time limit, cost, quality, safety and environmental protection) of the bridge construction scheme in the complex special geological area of Southwest China, the network planning technology and BIM(building information modeling) were combined. BIM visualization technology, fuzzy set theory and GRA (grey correlation analysis) were integrated into the optimization of bridge construction schemes in complex special geological areas. HFMD(hybrid fuzzy multi-attribute decision-making model) based on duration-cost-quality-safety-environmental protection was established, and a visualization system of construction process was constructed by using Python and BIM technology. Assisted managers to make decisions, and the result met the "five control" index comprehensive optimization scheme, and the construction period was advanced by 10 days, and the cost was reduced by 3.1%, which proved the practicability and effectiveness of this model A and method. It provides a reference for the decision of bridge construction scheme in complex special geological area.