Article
Environmental Sciences
Xiaojun Su, Yi Zhang, Xingmin Meng, Mohib Ur Rehman, Zainab Khalid, Dongxia Yue
Summary: Using SBAS-InSAR technology, this study detected ground surface deformation in the Hunza Valley and completed a comprehensive inventory of 118 landslides. The analysis of three large landslides revealed the characteristics and mechanisms of landslide development.
Article
Engineering, Multidisciplinary
Huafu Pei, Feng Zhang, Siqi Zhang
Summary: The study presents a novel inclinometer based on the Hall element sensor for deep-seated slope deformation monitoring, demonstrating stable performance and good measurement precision suitable for geotechnical engineering requirements.
Article
Geography, Physical
Wang Xin, Chengzhi Pu, Wei Liu, Ke Liu
Summary: This paper proposes a method for monitoring and identifying the deformation displacement of landslide surfaces by combining image recognition technology and computer vision. The method has been validated through indoor landslide model tests and unmanned aerial vehicle field simulation displacement recognition tests. The results show that the IR-CV method can effectively identify the deformation and displacement of landslide surfaces, providing a cost-effective and feasible solution for monitoring the deformation and displacement of landslide surfaces.
Article
Engineering, Geological
Jordan Aaron, Simon Loew, Markus Forrer
Summary: Understanding landslide behavior over medium and long timescales is essential for predicting landslide hazard and constructing accurate landscape evolution models. This study analyzed the Schlucher landslide in Liechtenstein, finding that the recent acceleration in displacement from 2016 to 2018 was likely caused by loss of internal strength rather than anomalously high recharge. The findings suggest that forecasting surge potential for certain earthflows and soil slides should consider mechanisms such as loss of internal strength.
Article
Geosciences, Multidisciplinary
Changjun Huang, Qingshan Zhou, Lv Zhou, Yuanzhi Cao
Summary: The study proposes a Quasi-Persistent Scatterers InSAR (QPS-InSAR) time-series method to identify and monitor ancient landslides in Wanzhou District, providing valuable information for local government to conduct regular landslide inspections and enhance landslide disaster early warning mechanisms.
Article
Optics
Xiangnan Cheng, Shichao Zhou, Tongzhen Xing, Yicheng Zhu, Shaopeng Ma
Summary: A new deep learning model is proposed in this study, which incorporates strain-displacement relations into the neural network, improving the prediction accuracy of digital image correlation (DIC) problems.
Article
Chemistry, Multidisciplinary
Yunsheng Zhang, Zhen Yang, Lei Xing, Siyang Chen, Wujiao Dai, Jiaxin Chai
Summary: This paper proposes a phase-correlation improvement method based on phase filtering using phase standard deviation (PSD), which effectively resists noise interference and obtains accurate displacement estimation results.
APPLIED SCIENCES-BASEL
(2022)
Article
Physics, Multidisciplinary
Zbigniew Lutowski, Slawomir Bujnowski, Beata Marciniak, Sylwester Kloska, Anna Marciniak, Piotr Lech
Summary: The study introduced a new method utilizing digital image correlation and filtering technique to detect skin micro-shifts caused by pulsation of the veins, visualizing the veins in the forearm and potentially aiding in the diagnosis of venous stenosis and reducing adverse events during blood collection. The method's advantage lies in the lack of specialized equipment needed, with just a typical mobile phone camera being sufficient for the test.
Article
Chemistry, Analytical
Aldo Minardo, Luigi Zeni, Agnese Coscetta, Ester Catalano, Giovanni Zeni, Emilia Damiano, Martina De Cristofaro, Lucio Olivares
Summary: This study reports the experimental application of distributed optical fiber sensors in monitoring small-scale granular and volcanic rock slopes, demonstrating their ability to reveal sudden soil strain increase and monitor fractures in rocks. The research offers valuable insights into using these sensors for early warning systems against landslides in various types of materials.
Article
Geosciences, Multidisciplinary
Xiaoliang Li, Zhentang Liu, Enlai Zhao, Yubing Liu, Xiaojun Feng, Zhoujie Gu
Summary: In this study, dynamic Brazilian splitting experiments were conducted on coal using the split Hopkinson pressure bar and digital image correlation. The evolution behaviors of displacement, displacement velocity, and displacement acceleration were investigated. The results showed that the damage of coal evolves in the form of variable velocity and acceleration. The relationship between damage and energy was also analyzed.
NATURAL RESOURCES RESEARCH
(2023)
Article
Engineering, Multidisciplinary
Hisham Mohamad, Aizat Akmal A. M. Beddelee, Muhammad Farid Ghazali, Hsiu Eik Lee, Krisada Chaiyasarn, Muhammad Yusoff M. Nasir
Summary: Geotechnical instrumentation and monitoring are crucial for controlling subsurface ground movement and predicting geological disasters. A borehole inclinometer is a conventional method for monitoring ground movements, but it has limitations in terms of cost and measurement accuracy. The advancement of Distributed Optical Fibre Strain Sensing (DOFS) allows for a more accurate and cost-effective measurement of lateral displacements. This study enhances the DOFS inclinometer by developing a web-based application for automated data acquisition and processing, which can be used for early warning systems in civil engineering projects.
ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH
(2023)
Article
Engineering, Environmental
Maheshreddy Gade, Partha Sarathi Nayek, J. Dhanya
Summary: The study developed a new neural network-based prediction model for Newmark's sliding block displacements, utilizing multiple parameters to predict slope displacement. The model accurately captured displacement features and exhibited agreement with existing relations in literature. The applicability of the new model in estimating slope displacement hazard was demonstrated in a representative scenario in the Himalayan region.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2021)
Article
Optics
V. F. Sciuti, R. B. Canto, J. Neggers, F. Hild
Summary: The study focused on the gray level conservation hypothesis in Digital Image Correlation (DIC) and proposed brightness and contrast corrections (BCCs) to deal with different sources of brightness changes. Through a case study on a refractory castable, it was found that BCCs significantly reduced gray level residuals, leading to better crack detection.
OPTICS AND LASERS IN ENGINEERING
(2021)
Article
Engineering, Geological
Chia-Han Tseng, Yu-Chang Chan, Ching-Jiang Jeng, Ruey-Juin Rau, Yu-Chung Hsieh
Summary: This study discovered multiple potential sliding blocks within the Huafan University campus and proposed a model of landslide movement with a listric sliding surface. Long-term surface monitoring provides a reliable and economical way to understand the mechanism of slope movement behavior.
ENGINEERING GEOLOGY
(2021)
Article
Education, Scientific Disciplines
Jingzong Zhang, Xiaokang Ling, Zhijie He, Yimin Song, Hailiang Xu, Dong An
Summary: This paper proposes a regional digital image slope monitoring method to meet the monitoring requirements of different areas of the same slope. The features of different regions in the image are identified using optical region detection, and the deformation calculation method is matched accordingly. Finally, the three-dimensional displacement of the slope is obtained using binocular vision principle. The applicability of digital image correlation method in slope monitoring is improved through a case study on a highway slope in Qinhuangdao.
Article
Geochemistry & Geophysics
Stelios Andreadis, Ilias Gialampoukidis, Andrea Manconi, David Cordeiro, Vasco Conde, Manuela Sagona, Fabrice Brito, Nick Pantelidis, Thanassis Mavropoulos, Nuno Grosso, Stefanos Vrochidis, Ioannis Kompatsiaris
Summary: This study implements a pipeline that uses social media data to identify earthquake locations and trigger remote sensing data analysis. The pipeline was tested over a long period in Japan, an area with frequent earthquakes and widespread social media use. The results show the potential significance of this pipeline for future development and remote sensing observation of earthquake-affected areas.
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
(2022)
Article
Engineering, Geological
Shucai Li, Jie Hu, Florian Amann, Liping Li, Hongliang Liu, Shaoshuai Shi, Pooya Hamdi
Summary: The paper introduces a new rock testing system that can simulate complex tensile-compressive-shear stress states. The system allows for laboratory tests under various failure modes and provides valuable information on failure characteristics.
JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
(2022)
Article
Engineering, Geological
Ali Aminzadeh, Florian Amann
Summary: This article studies the stresses at the center of a disk made of transversely isotropic rocks in Brazil. It finds that the solution for these stresses depends on the radius of the disk, the applied load, the material orientation, and two dimensionless ratios related to Young's modulus and apparent shear modulus. Finite element simulations are conducted to determine the stresses at the disk center, and an approximate formula is derived from analytical results. The formula is compared to numerical solutions, and simple and practical equations are proposed for estimating the stresses at the center of the disk specimen.
JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
(2023)
Article
Chemistry, Analytical
Claudia Post, Niklas Heyden, Andre Reinartz, Aaron Foerderer, Simon Bruelisauer, Volker Linnemann, William Hug, Florian Amann
Summary: The entire water cycle is contaminated with undetected micropollutants, which poses a threat to wastewater treatment. In our case study, we used Deep-UV laser-induced Raman and fluorescence spectroscopy in combination with a CNN-based AI support to analyze samples from different treatment stages of a wastewater treatment plant. The results showed the potential of this method for online monitoring and analysis of micropollutants in wastewater treatment.
Correction
Multidisciplinary Sciences
Nikhil Prakash, Andrea Manconi, Simon Loew
SCIENTIFIC REPORTS
(2022)
Article
Energy & Fuels
Zhengyang Song, Yunfeng Wu, Heinz Konietzky, Florian Amann, Zhen Yang, Wengang Dang
Summary: The mechanical responses of coal exposed to wetting-drying conditions and compressive cyclic loading were investigated to reveal its behaviors. Experimental results showed that wetting-drying cycles had an exponential attenuation effect on the P-wave velocity of coal, while different loading rates led to different failure modes and energy dissipation. In addition, wetting-drying action induced macro-cracks, and the width of the cracks was proportional to the number of cycles. These testing results provide practical guidance for evaluating the stability of coal mines in in-situ applications.
GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES
(2022)
Article
Geosciences, Multidisciplinary
V. T. Bickel, B. Moseley, E. Hauber, M. Shirley, J. -P Williams, D. A. Kring
Summary: The Artemis program aims to explore the south polar region of the Moon, utilizing both crewed and robotic missions. One of the key objectives is to study the polar volatiles concentrated in and near permanent shadow areas. In this study, a physics-based, deep learning-driven post-processing tool is deployed to generate high-quality images of shadowed regions in the Artemis exploration zone. The findings provide valuable insights into the meter-scale cryogeomorphology of these shadowed regions, allowing for better assessment of potential landing sites and future exploration.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Astronomy & Astrophysics
Kiri L. Wagstaff, Ingrid J. Daubar, Gary Doran, Michael J. Munje, Valentin T. Bickel, Annabelle Gao, Joe Pate, Daniel Wexler
Summary: There is a bias in the detection of fresh impacts on Mars, which is mainly focused on areas of low thermal inertia. By using a trained machine learning classifier, the detection of these impacts can be increased. This study discovered 69 new fresh impacts, confirmed with follow-up HiRISE images.
Letter
Multidisciplinary Sciences
Andrea Manconi
Retraction
Construction & Building Technology
Manuel Entfellner, Pooya Hamdi, Xiaoyue Wang, Helmut Wannenmacher, Florian Amann
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
(2023)
Article
Robotics
Philip Arm, Gabriel Waibel, Jan Preisig, Turcan Tuna, Ruyi Zhou, Valentin Bickel, Gabriela Ligeza, Takahiro Miki, Florian Kehl, Hendrik Kolvenbach, Marco Hutter
Summary: This study presents a team of legged robots with complementary skills for exploration missions in challenging planetary analog environments. The legged robots are equipped with efficient locomotion control, mapping pipeline for visualization, instance segmentation to identify scientific targets, and scientific instruments for remote and in situ investigation. The integration of a robotic arm enables high-precision measurements. The results show that the team of legged robots can conduct successful missions in a short time and explore planetary target sites that are currently inaccessible.
Article
Geochemistry & Geophysics
L. Winhausen, K. Khaledi, M. Jalali, M. Bretthauer, F. Amann
Summary: This study investigates the anisotropic behavior of Opalinus Clay, a selected host rock for nuclear waste disposal in Switzerland, by examining its unconfined compressive and tensile strength, poromechanical response, and effective shear strength. The results reveal that the rock exhibits a directional dependency in its strength properties, with the lowest values observed at specific angles between the bedding orientation and the load direction. The study also shows that the orientation of the bedding plane with respect to the maximum principal stress significantly influences the poromechanical behavior and the effective strength of the rock.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2023)
Article
Geosciences, Multidisciplinary
Andrea Manconi, Alessandro C. Mondini
Summary: This study presents a procedure for detecting landslide events using regional broadband seismic networks and spaceborne radar imagery. The combination of these techniques aims to exploit their complementary elements and mitigate their limitations when used individually. By testing the method on slope failures associated with the Piz Cengalo rock avalanche in the Swiss Alps, the study demonstrates the effectiveness of the approach. The operational implementation of this method, coupled with the increasing availability of seismic and satellite data, can provide a new and efficient solution for building and expanding landslide catalogues, as well as contributing to hazard assessments and early warning systems at regional scales.
NATURAL HAZARDS AND EARTH SYSTEM SCIENCES
(2022)
Article
Geochemistry & Geophysics
Lisa Winhausen, Kavan Khaledi, Mohammadreza Jalali, Janos L. Urai, Florian Amann
Summary: This study investigates the failure mode of Opalinus Clay under different stress conditions. The results show a transition from brittle to ductile deformation with increasing stress, and the deformation localizes in distinct shear bands. The study also reveals less dilation in the shear zones at higher stresses.
Article
Geochemistry & Geophysics
Xiaodong Ma, Marian Hertrich, Florian Amann, Kai Broeker, Nima Gholizadeh Doonechaly, Valentin Gischig, Rebecca Hochreutener, Philipp Kaestli, Hannes Krietsch, Michele Marti, Barbara Naegeli, Morteza Nejati, Anne Obermann, Katrin Plenkers, Antonio P. Rinaldi, Alexis Shakas, Linus Villiger, Quinn Wenning, Alba Zappone, Falko Bethmann, Raymi Castilla, Francisco Seberto, Peter Meier, Thomas Driesner, Simon Loew, Hansruedi Maurer, Martin O. Saar, Stefan Wiemer, Domenico Giardini
Summary: The increased interest in subsurface development and associated seismicity requires a better understanding of hydro-seismo-mechanical coupling in fractured rock masses. In order to bridge the knowledge gap between laboratory and reservoir scales, controllable in situ experiments are necessary. The BedrettoLab provides a testing ground for studying the hydro-seismo-mechanical response of fractured crystalline rock masses.