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Application of the terrestrial laser scanner in the monitoring of earth structures
Open Geosciences ( IF 1.7 ) Pub Date : 2020-07-30 , DOI: 10.1515/geo-2020-0033
Janusz P. Kogut 1 , Elżbieta Pilecka 1
Affiliation  

Abstract Terrestrial laser scanning (TLS) assists in the detection of the unsafe behaviour of slopes and scarps. It also facilitates the assessment of the stability of earthworks. Earth structures are those that are usually made of qualified ground material. One may distinguish between point structures such as mounds, forts and dams, and linear structures such as roads, railways and flood embankments. This article concerns the problem of monitoring and analysing of the effects associated with the unstable behaviour of selected earth structures. TLS enables remote sensing of surface changes in a simple and automated manner. Regular, multiple measurements with the laser scanner are applied in long-term monitoring of the behaviour of the selected objects. The discrete numerical models using, for example, the finite element method (FEM) take into account geotechnical properties of substrate and allow for the risk assessment and stability testing of such structures. The numerical model of the structure along with the parameters of the substrate are introduced into the FEM package. This allows for the analysis of stresses, strains and displacements, along with different loading cases. The work here presents a few selected earth structures for which the aforementioned analyses have been undertaken.

中文翻译:

地面激光扫描仪在地球结构监测中的应用

摘要 地面激光扫描 (TLS) 有助于检测斜坡和陡坡的不安全行为。它还有助于评估土方工程的稳定性。地球结构是那些通常由合格的地面材料制成的结构。人们可以区分点结构(例如土墩、堡垒和水坝)和线性结构(例如公路、铁路和防洪堤)。本文关注与选定的地球结构的不稳定行为相关的影响的监测和分析问题。TLS 能够以简单和自动化的方式对地表变化进行遥感。使用激光扫描仪定期进行多次测量,用于对选定对象的行为进行长期监控。离散数值模型使用,例如,有限元法 (FEM) 考虑了基底的岩土特性,并允许对此类结构进行风险评估和稳定性测试。将结构的数值模型以及基板的参数引入到 FEM 封装中。这允许分析应力、应变和位移,以及不同的载荷情况。这里的工作介绍了一些选定的地球结构,已经对其进行了上述分析。
更新日期:2020-07-30
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