Open-pit mine geomorphic changes analysis using multi-temporal UAV survey

Xiang, Jie; Chen, Jianping; Sofia, Giulia; Tian, Yun; Tarolli, Paolo

doi:10.1007/s12665-018-7383-9

Cited by 71 publications

(48 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In this regard, Martino et al 2014 [29] already pointed out the complexity and limitations of the use of terrestrial remote sensing techniques in case of partial and side visibility of cliff slopes. In such cases (like, for instance, sea cliffs or sites with complex logistics or accessibility), Digital photogrammetry by UAVs [13,14] may represent a suitable complementary technique, which is able to provide high resolution 3D models that can be integrated with the TLS ones.…”

Section: Discussionmentioning

confidence: 99%

“…In particular, such methods have been successfully employed in the framework of slope stability analyses of high steep slopes [10,11] or cave sections [12], also through the deployment of new technologies like unmanned aerial vehicles (UAV) [13,14]. This paper describes a combined methodology that exploits the potential of TLS in the framework of a slope stability analysis of a rocky cliff.…”

mentioning

confidence: 99%

See 1 more Smart Citation

The Contribution of Terrestrial Laser Scanning to the Analysis of Cliff Slope Stability in Sugano (Central Italy)

et al. 2018

View full text Add to dashboard Cite

In this work, we describe a comprehensive approach aimed at assessing the slope stability conditions of a tuff cliff located below the village of Sugano (Central Italy) starting from remote geomechanical analysis on high-resolution 3D point clouds collected by terrestrial laser scanner (TLS) surveys. Firstly, the identification of the main joint systems has been made through both manual and automatic analyses on the 3D slope model resulting from the surveys. Afterwards, the identified joint sets were considered to evaluate the slope stability conditions by attributing safety factor (SF) values to the typical rock blocks whose kinematic was proved as compatible with tests for toppling under two independent triggering conditions: hydrostatic water pressure within the joints and seismic action. The results from the remote investigation of the cliff slope provide geometrical information of the blocks more susceptible to instability and pointed out that limit equilibrium condition can be achieved for potential triggering scenarios in the whole outcropping slope.

show abstract

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

The Contribution of Terrestrial Laser Scanning to the Analysis of Cliff Slope Stability in Sugano (Central Italy)

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The Spc is inversely correlated with anthropogenic pressure (Chen et al 2015;Sofia et al 2016;Xiang et al 2018). Surface morphology (slope) of regions presenting anthropogenic structures tends to be well organised (low Spc) and, in general, self-similar at a long distance.…”

Section: Geomorphometric Parametersmentioning

confidence: 99%

“…It is based on the (demonstrated) assumption that natural areas present low correlations within a neighbourhood because they are inherently irregular, while artificial surfaces to satisfy human needs for mobility and machine access tend to display a higher level of selfsimilarity with surroundings (Sofia et al 2014a;Xiang et al 2019). Describing the algorithm in detail is beyond the scope of this study: the authors refer to Sofia et al (2014a) for a complete description of the procedure and to other examples of applications (Chen et al 2015;Sofia et al 2016;Tarolli and Sofia 2016;Xiang et al 2018;Xiang et al 2019). Briefly, the steps to obtain the Spc (Fig.…”

Section: Geomorphometric Parametersmentioning

confidence: 99%

Geomorphometric characterisation of natural and anthropogenic land covers

Cao

Sofia

Tarolli

2020

Prog Earth Planet Sci

Self Cite

View full text Add to dashboard Cite

The scientific community has widely discussed the role of abiotic and biotic forces in reshaping the Earth's surface. Currently, the literature is debating whether humans are leaving a topographic signature on the landscape. Apart from the influence of humans on processes, does the resulting landscape bear an unmistakable signature of anthropogenic activities? This research analyses from a statistical point of view the morphological signature of anthropogenic and natural land covers in different topographic context, as a fundamental challenge in the emerging debate of human-environment relationships and the modelling of global environmental change. It aims to explore how intrinsically small-scale processes, related to land use, can influence the form of entire landscapes and to determine whether these processes create a distinctive topography. The work focusses on four study areas in floodplains, plain to hilly, hills and mountains, for which LiDAR-derived Digital Terrain Models (DTMs) are available. Surface morphology is described with different geomorphometric parameters (slope, mean curvature and surface peak curvature) and their frequency distribution. The results show that the distribution of geomorphometric indices can reveal anthropogenic land covers and landscapes. In most cases, different land covers show statistically significant differences (p < 0.05) in their morphology. Finally, this study demonstrates the possibility to use a geomorphic analysis to quantify anthropogenic impact based on land covers in different landscape contexts. This provides useful insight into understanding the impact of human activities on the present morphology and offers a comprehensive understanding of coupling human-land interaction from a geomorphological point of view.

show abstract

“…Measuring the exploitative volume over open-pit mines plays an important role in excavation planning, environment protection, and hazards prevention. Field surveying, photogrammetry, and terrestrial laser scanning (TLS) are common methods for measuring exploitative volume over open-pit mines [1]. Compared with the two former methods, TLS enables the collection of dense 3D data in a straightforward scheme.…”

Section: Introductionmentioning

confidence: 99%

Registration of Terrestrial Laser Scanning Surveys Using Terrain-Invariant Regions for Measuring Exploitative Volumes over Open-Pit Mines

et al. 2019

Remote Sensing

View full text Add to dashboard Cite

Terrestrial laser scanning (TLS) techniques have been widely used in open-pit mine applications. It is a crucial task to measure the exploitative volume of open-pit mines, within a specific time interval. One major challenge is posed, however, when conducting accurate registrations for temporal TLS surveys in continuously changing areas, created by excavation activities. In this paper, we propose a coarse-to-fine registration method, based on terrain-invariant regions (TIR), for temporal TLS surveys. More specifically, an approximate four-point congruent set (4PCS) of temporal TLS surveys is first identified, based on affine invariant rules. Second, a set of correspondences among temporal TLS surveys were collected by matching multi-scale sparse features of the 3D neighbors, centered at the approximate 4PCS. Third, the correspondences were used to estimate a rigid motion between the overlapping TLS surveys for the coarse registration, according to which the initial TIR from temporal TLS surveys were identified. Finally, the rigid motion between temporal TLS was iteratively optimized, based on the point clouds, only from the TIR. Based on the fine-level registered TLS surveys, Digital Elevation Models (DEMs) can be generated to calculate the exploitative volume, through a DEM differential. We applied the proposed method to two open-pit mines in China, and also compared our method with five state-of-the-art methods for registering temporal TLS surveys. Experimental results indicated that the proposed method achieved a higher registration accuracy than the state-of-the-art methods. Based on the registered result, our method achieved a 98.03% overall accuracy for measuring the exploitative volume, compared to in-situ measurement.

show abstract

Open-pit mine geomorphic changes analysis using multi-temporal UAV survey

Cited by 71 publications

References 58 publications

The Contribution of Terrestrial Laser Scanning to the Analysis of Cliff Slope Stability in Sugano (Central Italy)

The Contribution of Terrestrial Laser Scanning to the Analysis of Cliff Slope Stability in Sugano (Central Italy)

Geomorphometric characterisation of natural and anthropogenic land covers

Registration of Terrestrial Laser Scanning Surveys Using Terrain-Invariant Regions for Measuring Exploitative Volumes over Open-Pit Mines

Contact Info

Product

Resources

About