Applications of terrestrial laser scanning for tunnels: a review

Wang, Weixing; Zhao, Wenjin; Huang, Like; Vimarlund, Vivian; Wang, Zhiwei

doi:10.1016/s2095-7564(15)30279-8

Cited by 100 publications

(68 citation statements)

References 25 publications

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“…By having an accurate 3D model of all components installed inside the engine room, any maintenance, future upgrades, or modifications can be made with reference to the original state rather than the AutoCAD design model. There are also many other possible applications of TLS in VCM, including capturing the physical properties of large mining equipment (hydraulic support systems at longwall faces, conveyors), monitoring the geometry of mine roadways during excavation, shaft alignment, making deformation measurements, and detecting geological features as shown in previous studies [12,17,18]. Nevertheless, we must be aware that the use of TLS in coal mines is limited due to the safety regulations related to potential risk of explosions of methane gas and coal dust.…”

Section: Discussionmentioning

confidence: 99%

The flexural stiffness and tension state of basalt filter

Khalmuradovich

Ahmedovich

2017

Materials and Geoenvironment

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Recently, a new underground pumping station was constructed 41.5 m below sea level and equipped, which has now become the main underground pumping station of the Velenje Coal Mine (VCM). In this study, use of terrestrial laser scanning (TLS) to acquire the 3D data of the engine room of the underground pumping station is presented. TLS is an advanced technique in spatial information data acquisition, which allows the equipment in the underground pumping station to be digitally captured with unprecedented resolution and accuracy. Integration with metric imagery allows 3D photorealistic models to be created for interpretation and visualisation. The final result shows the actual 3D image of the object recorded with a relative accuracy of a few millimetres. TLS is ideal for capturing the original state before construction commences and the final state after its completion, as well as for both observation of surface changes and detection of deformations. When we have an accurate 3D model of each component in the engine room of the underground pumping station, any maintenance, future upgrades, or modifications can be made with reference to the original state.Key words: terrestrial laser scanning, 3D model, underground pumping station, coal mine Izvleček V zadnjih letih je potekala izgradnja in opremljanje novega podzemnega črpališče na koti -41,5 metrov, ki je postalo glavno podzemno črpališče Premogovnika Velenje. V članku je predstavljena uporaba terestrične-ga laserskega skeniranja (TLS) za zajem 3D podatkov strojnice podzemnega črpališča. TLS je napredna tehnika zajema prostorskih podatkov, s katero smo z izjemno resolucijo in natančnostjo posneli vgrajeno tehnološko opremo v strojnico podzemnega črpališča. Integracija z 2D posnetki omogoča izdelavo 3D foto-realističnih modelov, ki omogočajo natančno interpretacijo in vizualizacijo. Končni rezultat prikazuje dejanski 3D model posnetega objekta z relativno natančnostjo nekaj milimetrov. Uporaba TLS je idealna za zajem in izdelavo dokumentacije prvotnega stanja pred začeto gradnjo in končnega stanja po zaključeni gradnji, nadalje za opazovanje površinskih sprememb in odkrivanje deformacij. Ko razpolagamo z natančnim 3D modelom vseh posameznih komponent strojnice jamskega črpališča, lahko z ozirom na prvotno stanje brez težav planiramo nadgradnje in modifikacije ter zagotavljamo nemoteno izvajanje vzdrževalnih del.Ključne besede: terestrično lasersko skeniranje, 3D model, podzemno črpališče, premogovnik

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Section: Discussionmentioning

confidence: 99%

The flexural stiffness and tension state of basalt filter

Khalmuradovich

Ahmedovich

2017

Materials and Geoenvironment

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“…And a circular shed with diameter of 20 m was equipped to decrease the impact of climate. Meanwhile, with the aim of understanding how the free face impact on the behavior of water infiltration, a pilot tunnel in the soil trough was excavated to simulate existential tunnel, which was supported by steel plates and wooden poles [42][43][44]. The experiment lasted for 65 days.…”

Section: Experimental Designmentioning

confidence: 99%

Field Experiment on Soaking Characteristics of Collapsible Loess

Wang

Xie

Qiu

et al. 2017

Advances in Materials Science and Engineering

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In collapsible loess area, migration of soil moisture often causes the temporal discontinuity and spatial nonuniformity of collapsibility, which leads to great damage for infrastructures. Therefore, the research on water infiltration is the key to solving the problem of collapsibility. The aim of this paper is to investigate the spatiotemporal evolution of infiltration characteristics of collapsible loess. A field soaking experiment was conducted on collapsible loess in western China, in which a soaking pool with diameter of 15 m was built. Time-Domain-Reflectometry (TDR) system and soil sampling were employed to measure the water content within the depth of 12 m. Then the saturation isograms were drawn for visualization of the process of infiltration. Also, a pilot tunnel was excavated to investigate how the free face can affect the infiltration behaviors. The experimental results revealed the characteristics of infiltration in both horizontal and vertical directions. Moreover, the response of free face on infiltration behaviors was also found. These findings of research could provide the data for the infiltration laws of unsaturated loess and thereby provide the basis for integrated treatment of collapsible loess.

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“…The quantitative findings resulting from the case studies could not be directly generalized. Wang et al (2014) also overviewed several applications of TLS in tunnels and emphasized how TLS can be used to study aspects of tunnels. Similar applications refer to Moisan et al (2015) and Lague et al (2013).…”

Section: * Corresponding Authormentioning

confidence: 99%

Point Cloud Modelling Based on the Tunnel Axis and Block Estimation for Monitoring the Badaling Tunnel, China

Wang

Zheng

Huang

et al. 2017

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:Recent years have witnessed a growing investigation of terrestrial laser scanning (TLS) for monitoring the deformation of tunnels. TLS provides the ability to obtain a more accurate and complete description of the tunnel surfaces, allowing the determination of the mechanism and magnitude of tunnel deformation, because the entire surface of the tunnel is more concretely modelled rather than being represented by a number of points. This paper models and analyses the point clouds from TLS to detect the possible deformation of a newly built tunnel. In the application of monitoring the Badaling Tunnel for the Winter Olympics 2020 in Beijing, China, the proposed method includes the following components: the tunnel axis is automatically estimated based on a 3D quadratic form estimation; all of the point clouds are segmented into axis-based blocks; and representative points, solved by a singular value decomposition (SVD) method, are estimated to describe the tunnel surface and establish the correspondence of data between days. The deformations are detected in the form of the distance discrepancies of representative points and verified by the measurements using total station.

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Applications of terrestrial laser scanning for tunnels: a review

Cited by 100 publications

References 25 publications

The flexural stiffness and tension state of basalt filter

The flexural stiffness and tension state of basalt filter

Field Experiment on Soaking Characteristics of Collapsible Loess

Point Cloud Modelling Based on the Tunnel Axis and Block Estimation for Monitoring the Badaling Tunnel, China

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