心墙堆石坝仓面施工进度动态控制

联合仓面施工进度仿真模型和仓面施工质量实时监控模型,综合考虑施工现场各项影响因素,提出了心墙堆石坝仓面施工进度动态控制模型,通过对仓面施工方案的优化以及对施工过程的施工进度偏差实时分析和反馈,从而实现仓面施工进度的事前、事中控制。将该施工进度动态控制模型应用到某心墙堆石坝,通过对心墙区某仓面进行多方案优化仿真分析,给出仓面施工事前控制推荐优化方案;当实际施工进度滞后时,仓面施工仿真模型根据当前仓面施工面貌进行动态更新并仿真,给出仓面施工事中控制推荐优化方案,从而保障仓面施工进度。应用结果表明,实际施工方案与仿真推荐方案一致,且二者仅相差23 min,实现了仓面施工进度的有效控制。该反馈模型能够及时给出合理的优化施工方案,从而实现对现场施工进度偏差的有效控制,为心墙堆石坝填筑进度提供保障。

Dynamic control of construction progress of core rockfill dam storehouse surface

A dynamic control model for construction progress of the storehouse surface of core rockfill dams is proposed based on thesimulation model for construction progress and thereal-time monitoring model for construction quality of the storehouse surface, with field construction factors taken into consideration. Through optimization of the construction scheme and real-time analysis and feedback of progress deviation during the construction process with the model, the construction progress control before and during the construction process was realized. The model was applied to a core rockfill dam under construction. An optimized scheme for advance control of construction progress of a storehouse surface was chosen based on optimization and simulation analysis of multiple construction schemes. When the construction progress was stunted by unforeseen circumstances, the simulation model for storehouse surface construction was used to dynamically simulate and update the construction situation, and an optimized scheme for intermediate control of construction progress wasrecommended. The schedule of storehouse surface construction can thus be guaranteed. The application results showed that the actual construction scheme was consistent with the chosen one, only with a deviation of 23 minutes in the construction process. Therefore, the storehouse surface construction progress could be effectively controlled with the dynamic control model. As conclusions, the model can provide a reasonable and optimized construction scheme, effectively control the deviation in construction progress, and guarantee the construction progress of a storehouse surface of core rockfill dams.