华纳土地调查如何使用Leica Nova TS60

Case study

作者:安德鲁·格里芬

华纳土地调查有限公司(Warner Surveys), founded1979年,是英国领先的土地和工程测量顾问之一。在40年历史上交付了超过11,000个单独的项目,Warner调查的重点一直是客户服务以及优质数据收集和交付。该公司努力成为“首选”提供商质量调查。随着公司的发展,它迅速开发了建筑和工业部门,以支持不断发展的客户群。

From our roots as a small land survey company to where we are now, we continue to provide a consistent, cost-effective service to support our clients with comprehensive ‘end-to-end’ solutions for all their survey requirements, from project concept to completion,”Warner Surveys董事总经理David Hutson说。


三个应用程序,一个总站



The land and engineering surveying company uses a range of techniques and state-of-the-art measuring and positioning technology to ensure every project is carried out with precision, accuracy and the most cost-effective and safe survey solution. Warner Surveys’ go-to tool for project control network survey, verified ‘View Surveys’ and 3D movement monitoring is theLeica Nova TS60 - 世界上最准确的总站

“ Leica TS60是Warner的仪器调查转向需要额外准确性保证的项目。作为0.5秒的仪器,它非常适合手动监视方案,并对大型调查控制点网络进行测量,尤其是在铁路环境中。我们还发现了TS60的伸缩成像功能的额外用途,在经过验证的视图调查中”explains Hutson.

下面的示例说明了如何使用TS60华纳调查:

  • Performed a control survey with the highest accuracy to verify the control point network guiding the redesign of the Kings Cross station in London;

  • 通过提供调查以产生“经过验证的观点”,帮助其客户准确地可视化其新项目或开发的外观;

  • 莫vement monitoring schemes for the 3D monitoring of façades or old buildings.


国王跨站改建项目的控制网络调查



各国正在适应和扩展其铁路系统,以动员不断增长的城市增长,并使经济继续前进 - 伦敦也不例外。

作为升级英国东海岸主线的Network Rail的一部分,将更换并重新设计了伦敦的国王越野基础设施。审查该电台的计划包括在新布局中重新布置轨道,并重新打开了一条废弃的隧道,可以将六个轨道进入车站而不是当前四个轨道。

Warner Surveys were commissioned in early 2019 to undertake the reinstatement and re-survey of the existing survey control point network on the Kings Cross Remodelling project. Surveying this railway line requires capturing data with the highest precision and standards in the shortest amount of time.

“As this is a rail environment control survey, requiring a very high level of accuracy, we opted straight away for the TS60 to undertake all traversing and control point observations,” says Chris Gilks, Warner Surveys lead surveyor on Kings Cross Remodelling project.“这是大规模控制调查的理想选择,因为它利用了乐器的优势。The TS60 allows us to observe and record ‘rounds’ or ‘sets of angles’ to a 0.5 second horizontal and vertical accuracy, and as a result, provides quality data sets, which ensure we achieve the required accuracies necessary to meet demanding Network Rail standards.”

准确性是一个重要的好处,但这并不是使用TS60进行控制网络调查的唯一优点。在国王交叉重塑项目中,除了地面控制观测外,还需要验证和协调几个壁挂式棱镜

“借助此类项目,有大量目标,当利用Leica迷住的'Angles'应用程序时,通常有必要观察12个或更多不同的地面和墙壁目标,左右右侧进行七个完整的回合。例如;对于12个目标,这将等于单个设置的168个控制观测值,” explains Gilks.

这个过程可能会非常要求,尤其是在溢价和时间溢价的铁路环境中。

“ TS60非常适合这项任务,因为其压电技术无尽的驱动器与标准电动驱动器相反。TS60的旋转速度的提高大大减少了观察到如此庞大的角度的时间,因此,进而提高了我们每小时的生产率,并最终降低了Warner Surveys和我们的客户的成本,”adds Gilks.


Verified view surveys



华纳调查一直是“经过验证”调查的长期提供商,以进行准确的视觉表示(AVR)。AVR,摄影图像准确地放置在新的开发项目中,建筑师和开发人员通常用于计划目的,以显示未来计划的外观。可以将照片准确地放置并渲染到3D模型中,以可视化潜在的站点,收集GPS和总站测量。

华纳的调查为客户或生产AVR的公司提供调查数据,以促进3D数字建模。专家调查并记录大量照片参考点和相机位置,以确保高度准确性。然后将团队收集的调查数据导入到客户的3D数字模型中,从中可以从中渲染提出的方案的图像。

“ TS60具有其图像捕获功能,使我们能够为客户提供记录或调查的参考点的图像。它添加了调查点的望远镜图像记录,该记录有助于后处理,并可以提供给客户以确认或证明所调查的点,”remarks James Wallace, senior surveyor at Warner Surveys.


3D运动监控



在结构状态上的准确和可靠的定位对于做出快速而明智的决策和对潜在问题的反应至关重要。

现在,翻新工程需要维护现有的立面,而内部结构被拆除和重建以适合更现代的设计,这是一个司空见惯的地方。在这些情况下,指定的设计/结构工程师可以要求安装监视方案,以以毫米精度监视立面或结构。

华纳的调查已使用TS60监视旧建筑物和立面,因为机器人总站可以确定其自己的位置和定向,并观察团队设定的控制点。

“When Warner Surveys begin the process of the setting up one of these monitoring schemes we carry out three sets of angles observations to our reference control and to the monitoring targets over three set up positions for the base readings. The TS60 really comes into its element during this base reading set up due to its speed when turning between face left and face right, and when turning to observe the numerous monitoring points. The Piezo technology direct drives that turn the TS60 massively increase the speed at, which a monitoring scheme can be carried, which allows us to process and hand over results to the client quicker,”总结说Warner Surveys监测经理Peter Pearson。

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