Railway and platform monitoring during construction

Case study

Berny monitoring case study France

作者:Sandra Kombouare,Steven Thurgood和The Oxygen Agency

新的监视方法

Location
Gare de la Croix de Berny,RER B,Antony(92),法国

Project period
October 2018 - July 2019

ratp
巴黎地区的铁路运输运营商
Brézillon
建筑公司,Bouygues的子公司,住房工程,教育,健康,运输,工业和环境专家。
Geofit 地理空间数据获取和处理土地和工程测量公司。

ratp入伍建筑公司Brézillonto undertake demolition of a pedestrian bridge over a live railway, construction of a replacement underground passageway crossing beneath the tracks and the demolition and reconstruction of a building for passengers at the Croix de Berny station, near Paris, France.

Brézillon签约Geofitto complete land and engineering survey works for the scope of the project, including monitoring the stability of the railway track and platforms during the 9 month construction process.

Geofitwere confident to meet the challenging technical standards ofratp, who as part of the construction project required assurance monitoring combining geodetic and geotechnical instrumentation. The instrumentation was detailed in the monitoring specification for the project.


特定于项目的解决方案

伯尼案例研究与Geofit

Geofit在使用新技术方面有经验,因此设计和操作混合仪器是一个受欢迎的挑战。他们被授予该项目的土地和工程测量业务的合同,其中80%致力于监视车站的建筑工程。

GEOFIT基础设施和监视主管Alexandre Toubois先生and his team were tasked to monitor the railway track geometry, platforms, the surrounding infrastructure and the temporary works during the demolition and construction phases.

Using a combination of technologies, an automated monitoring solution was developed following consultation with the monitoring experts at Leica Geosystems France, combiningLeica Nova TM50 total stations和Wisen无线传感器。

了解对特定资产的快速2分钟阅读频率的需求,通过将连续运行的自动化总站(测量3D Prisms不间断)和使用WISEN传感器(倾斜度和裂纹测量器)结合使用,开发了混合监测解决方案。亚博5分钟快三)。

这y installed arrays of monitoring sensors to the railway track, platforms and other structures (station buildings, overhead electrification support columns and existing structural cracks).

Hardware and Software

Leica Nova TM50 and sensors in action

这些传感器的数据在单个接口(Leica Geomos Monitor)中管理,并通过现在,Leica Geomos!可视化平台

使用这些系统,一组专家团队能够在所有条件下获得频繁可靠的观察结果。监测使得可以准确遵循构造对铁路轨道和相关结构的影响。利用了无线倾斜传感器,测量铁路轨道的相对位移数据,用于用于铁路几何数据(CANT&Twist)的自动计算。

总站Prism监视提供了绝对位移数据,验证了相对数据并允许完成进一步的铁路几何计算。此外,使用3D PRISM观察的信息计算有关关联结构和结算的数据。这Leica GeoMoS software suiteenabled sensor control, data acquisition, calculations and event management. The software calculated deformation from the integrated solution in real time combining all data feeds into a single source. Users were able to configure individual element trigger values and alarm actions thus providing alerts when deformation exceed a specified threshold.

Using these instruments and their integration within theLeica GeoMoS software suiteGeofit能够满足其客户对资产检测到的任何变形的报告和警觉的期望。

Geofit能够通过分析收集的数据并告知运营商和建筑公司的任何更改来确保工作的平稳运行。这项针对铁路环境的完整仪器和监视解决方案允许按时执行工作,而不会给车站用户带来任何不便。监视不仅确保了第三方用户安全,而且还确保了现场的各个利益相关者和建筑工程的安全。

ClientsBrézillonandratpwelcomed the implementation of this combined innovative solution using technologies installed and operated by GEOFIT, which allowed the work to be carried out securely with no delays.

For more information contact the monitoring solutions specialists at Leica Geosystems.

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