Results 1 to 10 of about 39,983 (159)

GNSS Ground deformation observation network optimization assisted using prior InSAR-derived ground surface deformation and multiscale iteration estimation

open access: yesInternational Journal of Digital Earth
Ground surface deformation must be monitored to understand and prevent geological hazards. Global navigation satellite system (GNSS) technology has been widely used in deformation monitoring; however, current GNSS station layout strategies are often ...
Wenxiang Mao   +5 more
doaj   +4 more sources

Ground Surface Deformation in the Hanging Wall of the Jinshandian Underground Iron Mine in China

open access: yesFrontiers in Earth Science, 2022
When sublevel caving is used in metal mines, the stress state in the rock mass that initially existed around the mined-out area will be destroyed. This will lead to the rock strata deforming and moving and also, potentially, to large-scale collapse and ...
Tianlong Wang   +10 more
doaj   +3 more sources

Review on the Research and Applications of TLS in Ground Surface and Constructions Deformation Monitoring

open access: yesSensors, 2022
With the gradual maturity of the terrestrial laser scanners (TLS) technology, it is widely used in the field of deformation monitoring due to its fast, automated, and non-contact data acquisition capabilities. The TLS technology has changed the traditional deformation monitoring mode which relies on single-point monitoring.
Yufeng Shi, Helong Wang, Shi Yufeng
exaly   +4 more sources

Distributed Fiber Optic Strain Sensing for Geomechanical Monitoring: Insights from Field Measurements of Ground Surface Deformation

open access: yesGeosciences, 2021
In recent years, distributed fiber optic strain sensing (DFOSS) technology has demonstrated a solution for continuous deformation monitoring from subsurface to surface along the wellbore. In this study, we installed a single-mode optical fiber cable in a
Rasha Amer   +3 more
doaj   +3 more sources

Extrusion deformation process of ground surface during the Lushan earthquake in China

open access: yesGeodesy and Geodynamics, 2017
Based on finite element method, the extrusion deformation process of ground surface during the Lushan earthquake (April 20, 2013) is investigated in this work. In order to construct the finite element model of Lushan earthquake structure, the geophysical
Yuzhu Bai
doaj   +2 more sources

Ground Surface Deformation Caused by Pipe Jacking Construction in a Soft Soil Area: An Experiment-Based Study

open access: yesBuildings, 2023
Soft soil has the characteristics of high compressibility, large void ratio, and strong structure. Therefore, it is more likely to cause surface subsidence or even surface cracking and collapse when laying oil and gas pipelines in soft soil areas through
Junfeng Tang   +6 more
doaj   +3 more sources

Measurement of Soil Deformation at the Ground Contact Surface of a Traveling Wheel

open access: yesEngineering in Agriculture, Environment and Food, 2009
Abstract In order to clarify the soil deformation at the ground contact surface, traveling tests using a rubber-coated rigid wheel were carried out with -5%, 5%, 10%, 20% and 40% slip using a sophisticated soil bin test apparatus. The displacement of soil particles at the ground contact surface was observed through the movement of acrylic wires (1 mm
Masami Ueno   +2 more
exaly   +2 more sources

Prognosis of Ground Surface Deformation of the Victoria Mine –Slănic Prahova Saline [PDF]

open access: yesMATEC Web of Conferences
The Victoria mine, from Slănic Prahova Saline operated in the period 1970-1992 and was mined with small rooms and square pillars, on 11 overstory levels, of 16 m high. It resulted in a volume of mining voids of 7.4 million m3, which led to the pronounced
Marina Ovidiu   +3 more
doaj   +2 more sources

Experimental Research on the Settlement Feature of Two Ground Deformation Modes Induced by Tunnelling

open access: yesMathematics, 2023
Two ground deformation modes, i.e., the arching mode and collapsing mode, may be caused by tunnel excavation. However, the development of the ground deformation corresponding to the two modes is unclear.
Qingtao Lin   +4 more
doaj   +1 more source

Construction of “Space-Sky-Ground” Integrated Collaborative Monitoring Framework for Surface Deformation in Mining Area

open access: yesRemote Sensing, 2022
Ground deformation measurements in mining areas play a key role in revealing the surface subsidence law, retrieving the subsidence parameters, warning of geological disasters and restoring the surface ecology.
Yueguan Yan   +5 more
doaj   +1 more source

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