中小型水库面板堆石坝挤压边墙快速施工技术

Rapid Construction Technology for Extruded Side Walls of Concrete Face Rockfill Dams for Medium and Small Reservoirs

随着挤压边墙施工工艺的逐步成熟,其相关配套设备功能也日益完善,但挤压边墙施工受诸多因素影响,其边墙挤压设备的实际施工效率往往与理论施工效率存在较大的差距,而且其边墙成型后的平整度往往较差,进而对后期面板施工质量造成一定的影响。为解决挤压边墙采用常规施工方法存在的问题,施工技术人员结合现场施工情况摸索出一套快速完成面板堆石坝挤压边墙施工的方法,解决了常规施工方法存在的边墙成型速度慢、成型效果差、施工效率低、施工干扰大、安全及质量隐患突出等问题,减少了后期表面超欠处理的工作量,节约了外加剂及设备与人工的投入,降低了施工成本及安全隐患,提高了挤压边墙的施工质量,所取得的经验可为类似工程施工提供借鉴。

With the gradual maturity of the construction technology of the extruded side wall,the functions of the related equipment are also increasingly improved.However,the construction of extruded sidewalls is affected by many factors,and the actual construction efficiency of the sidewall extrusion machine often lags behind the theoretical construction efficiency.Moreover,the flatness of sidewalls is often poor,which has a certain impact on the quality of later concrete face construction.In order to solve the problems existing in the conventional construction methods for the extruded side wall,construction technicians have explored a set of methods for quickly completing the construction of the extruded side wall of a concrete face rockfill dam based on the on-site construction situation.These methods have solved the problems existing in the conventional construction methods,such as slow molding speed,poor molding effect,low construction efficiency,large construction interference,prominent safety and quality issues,and reduced the workload of surface treatment in the later stage.The investment in additives,equipment,and labor has been saved,construction costs and safety problems have been reduced,and the construction quality of the extruded sidewall has been improved.The experience gained can provide reference for the construction of similar projects.