山岭隧道钻爆法施工信息采集与机械化施工配套软件开发及应用

为甄别采用钻爆法施工的山岭隧道开挖循环作业时间影响因素,并合理预测施工工期,在现场调研的基础上,采用数理统计及理论分析方法,推导影响隧道工期的钻孔、装药爆破、出渣、立架和湿喷五部工序作业时间预估公式,并对机械化水平高的出渣和湿喷工序内机械合理配置数量进行研究.结果表明:隧道循环开挖进尺直接影响五部工序作业时间,钻孔和立架工序的循环作业时间还与围岩等级密切相关,出渣和湿喷工序循环作业时间与机械配置数量有关;出渣和湿喷工序内机械最优配置数量会随隧道累计开挖进尺增加而增加.为方便项目管理人员应用,基于C#语言开发了相关软件.该软件具备施工循环基本信息采集、机械配套数量计算和开挖作业时间预估三大功能,可实现管理人员远程监控施工进度并预见性地进行人员及机械安排的目标,有助于科学高效地进行隧道建设,提高施工效率,缩短施工工期.

Development and Application of Information Collection and Mechanized Construction Supporting Software for Mountain Tunnel Drilling and Blasting Method

In order to identify the influencing factors of cyclic operation time of mountain tunnel excavation constructed by drilling and blasting method and reasonably predict the construction period, on the basis of field investigation, mathematical statistics and theoretical analysis methods are used to deduce the operation time estimation formulas of drilling, charging and blasting, slag discharge, erection and wet spraying, in addition, the rational allocation of machinery in slag discharge and wet spraying processes with high mechanization level is studied. Research results show that the cyclic excavation footage of tunnel directly affects the operation time of five processes, the cyclic operation time of drilling and erection process is also closely related to the grade of surrounding rock, and the cyclic operation time of slag discharge and wet spraying process is related to the number of machinery configuration; The optimal allocation of machinery in the slag discharge and wet spraying processes will increase with the increase of the cumulative excavation footage of the tunnel; In order to facilitate the application of project managers, relevant software is developed based on C# language. The software has three functions: collection of basic information of construction cycle, calculation of mechanical supporting quantity and estimation of excavation operation time. It can realize the goal of remote monitoring of construction progress and predictable arrangement of personnel and machinery by managers, and is conducive to scientific and efficient tunnel construction, improve construction efficiency and shorten construction period.