施工期间的铁路和平台监控

案例分析

伯尼监测案例研究法国

Authors: Sandra Kombouare, Steven Thurgood & the Oxygen agency

New monitoring methods

地点
Gare de la Croix de Berny, RER B, Antony (92), FRANCE

项目期
2018年10月 - 2019年7月

RATP
轨way transport operator in Paris region
布雷斯隆
Construction company, subsidiary of Bouygues, expert in housing engineering, education, health, transport, industry and environment.
GEOFIT Geospatial data acquisition and processing land and engineering surveying company.

RATPenlisted construction company布雷斯隆为了在一条现场铁路上拆除行人桥,建造了在轨道下方的替换地下通道穿越,并在法国巴黎附近的Croix de Berny车站拆除了乘客的建筑物。

布雷斯隆contracted the services ofGEOFIT为了完成该项目范围的土地和工程调查,包括监视9个月建设过程中铁路和平台的稳定性。

GEOFIT有信心符合具有挑战性的技术标准RATP作为建筑项目的一部分,需要保证将大地测量和岩土工具结合起来。该仪器在项目的监视规范中详细介绍了。


The project specific solution

Berny Case Study cooperation with Geofit

GEOFIThave experience in the use of new and advanced technologies, thus designing and operating hybrid instrumentation was a welcome challenge. They were awarded the contract to undertake the land and engineering surveying operations of the project, 80% of which were dedicated to the monitoring of the construction works at the station.

Mr Alexandre Toubois, Head of Infrastructures & Monitoring at GEOFIT他的团队的任务是监视铁路轨道的几何形状,平台,周围的基础设施以及拆除和施工阶段期间的临时作品。

在与Leica Geosystems法国的监测专家进行咨询之后,使用技术组合,开发了自动监测解决方案,结合了Leica Nova TM50总亚博5分钟快三站和WiSen wireless sensors.

知道要求快速两分钟reading frequency for specific assets, a hybrid monitoring solution was developed by combining continuously operating automated total stations (measuring 3D prisms non-stop) and a dynamic reading interval solution using WiSen sensors (tilt and crack gauges).

他们将监视传感器阵列安装到铁轨,平台和其他结构(车站建筑物,高架电气支持柱和现有结构裂纹)。

硬件和软件

Leica Nova TM50和动作传感器

Data from these sensors was managed in a single interface (Leica GeoMoS Monitor) and made accessible to the client through the现在,Leica Geomos!visualization platform.

Using these systems, a team of experts was able to obtain frequent and reliable observations under all conditions. The monitoring made it possible to follow precisely the effect of the construction on the railway tracks and associated structures. Wireless tilt sensors were utilized, measuring relative displacement data of the railway track for automated computation for rail geometry data (CANT & TWIST).

The total station prism monitoring provided absolute displacement data, validating the relative data and allowing for further railway geometry computations to be completed. In addition monitoring data regarding associated structures and settlement was computed using the information from the 3D prism observations. TheLeica Geomos软件套件启用传感器控制,数据采集,计算和事件管理。该软件在集成解决方案的实时计算了变形,将所有数据供稿组合到单个源中。用户能够配置单个元素触发值和警报操作,从而在变形超过指定阈值时提供警报。

使用这些乐器及其在Leica Geomos软件套件GEOFITwas able to meet the expectations of their client for reporting and alarming of any deformation detected with the assets.

GEOFITwas able to ensure the smooth running of the work by analysing the data collected and by informing the operator and the construction company of any change. This complete instrumentation & monitoring solution for the railway environment allowed the work to be carried out on time, without causing any inconvenience to station users. The monitoring not only ensured the 3rd party user safety, but also ensured the safety of the various stakeholders and construction operatives present at the site.

客户布雷斯隆RATP欢迎使用由Geofit安装和运营的技术实施这种联合创新解决方案,该技术允许在没有延迟的情况下安全地执行工作。

有关更多信息,请联系Leica Geosystems的监视解决方案专家。

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