Close-range photogrammetric data for landslide monitoring on slope area

Matori, Abdul Nasir; Cahyono, Bambang Kun; Mokhtar, Munirah Radin Mohd; Yusof, Khamaruzaman B. Wan

doi:10.1109/chuser.2012.6504346

Cited by 8 publications

(2 citation statements)

References 7 publications

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“…There are many technologies to monitor landslides, such as global positioning system (GPS) (Jibson et al, 2000), remote sensing (RS) (Sun et al, 2003), digital close-range photogrammetry (Matori et al, 2012) for measuring ground surface displacement, and inclinometer (Sargand et al, 2004) and time domain reflectometry (TDR) (Dennis et al, 2006) for monitoring deep sliding surfaces. Methods that have employed optical fiber technologies such as optical time domain reflectometry (OTDR) (Higuchi et al, 2007;Tang et al, 2009), Brillouin optical time domain reflectometry (BOTDR) (Ding et al, 2005;Wang et al, 2009) and Brillouin optical time domain analysis (BOTDA) (Iten and Puzrin, 2009;Zeni, 2009) were also introduced into landslide monitoring area.…”

Section: Introductionmentioning

confidence: 99%

New improvement of the combined optical fiber transducer for landslide monitoring

Zhu

Yuan

Liu

et al. 2014

Nat. Hazards Earth Syst. Sci.

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Abstract. Landslide monitoring is important in predicting the behavior of landslides, thereby ensuring environmental, life, and property safety. On the basis of our previous studies, we conducted the double shear test by using a third-generation optical fiber transducer that uses expandable polystyrene (EPS) as base material. However, the thirdgeneration transducer has poor performance when cohesive force is present between the grout and capillary stainless steel pipe of the transducer. Thus, the fourth-generation optical fiber transducer was invented. Similar to the third-generation transducer, the fourth-generation transducer also used EPS as its base material. Single shear test was conducted on the fourth-generation transducer after being grouted with cement mortar (1 : 1 mix ratio). The micro-bend loss mechanism of the optical fiber was considered, and the optical time domain reflectometry instrument was used. The fact that the loss sequence of optical fibers subjected to loading is different at various locations is found. The relationship of the loadingpoint displacement vs. optical fiber sliding distance and optical loss were measured. Results show that the maximum initial measurement precision of the newly proposed device is 1 mm, the corresponding sliding distance is 21 mm, and the dynamic range is 0-20 mm. The fourth-generation transducer can measure the movement direction of loadings, thus making this transducer applicable for landslide monitoring.

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Section: Introductionmentioning

confidence: 99%

New improvement of the combined optical fiber transducer for landslide monitoring

Zhu

Yuan

Liu

et al. 2014

Nat. Hazards Earth Syst. Sci.

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show abstract

“…The traditional techniques for surface deformation monitoring mainly include geodetic survey and close-range photogrammetry [10][11][12]. In recent years, the sensor technology, GPS, and 3D laser scanning have been applied to monitor the deformation on engineering slopes, but the application faces many limitations [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

3D Visualization of Landslide Based on Close-Range Photogrammetry

Zhang¹,

Zha²,

Sha³

et al. 2019

I2M

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This paper aims to accurately visualize the surface deformation of landslide. For this purpose, the authors proposed a surface modelling method based on cloud data of discrete points and triangulated irregular network (TIN). Firstly, an ordinary camera was adopted to take photos of the landslide at a high speed. Then, the close-range photogrammetry, a long-distance noncontact measurement technology, was integrated with surface modelling method, laying the basis for landslide monitoring. The hybrid method was applied to acquire the cloud data of discrete points of the landslide, reconstruct the movement pattern, and predict the future trend of movement. Lab tests show that the minimum of the largest residuals fell within 0.5612~0.9993 mm. The 3D deformation pattern reconstructed by our method in field test deviated from the actual value by less than 1mm, and from the optical measurement by less than 5mm. The results show that our method can realize accurate non-contact measurement of landslide.

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Landslide mapping, monitoring and modeling techniques: A new approach using DOFS

Sharma¹,

Laskar

2017

2017 International Conference on Circuits, Controls, and Communications (CCUBE)

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Close-range photogrammetric data for landslide monitoring on slope area

Cited by 8 publications

References 7 publications

New improvement of the combined optical fiber transducer for landslide monitoring

New improvement of the combined optical fiber transducer for landslide monitoring

3D Visualization of Landslide Based on Close-Range Photogrammetry

Landslide mapping, monitoring and modeling techniques: A new approach using DOFS

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