Results 21 to 30 of about 25,530 (290)

Surface Subsidence Characteristics and Causes in Beijing (China) before and after COVID-19 by Sentinel-1A TS-InSAR

open access: yesRemote Sensing, 2023
Surface subsidence is a serious threat to human life, buildings and traffic in Beijing. Surface subsidence is closely related to human activities, and human activities in Beijing area showed a decreasing trend during the Corona Virus Disease 2019 (COVID ...
Haiquan Sheng   +6 more
doaj   +1 more source

STUDY ON THE SPATIAL-TEMPORAL EVOLUTION OF SUBSIDENCE IN THE BEIBU GULF REGION BY TIME-SERIES INSAR [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
In this paper, based on the 24 scenes Sentinel-1A images covering the Beibu Gulf region from 2018 to 2020, we used the PSInSAR technique to obtain the surface subsidence information in the study area and analyzed the surface subsidence spatial-temporal ...
C. Wang   +7 more
doaj   +1 more source

Research on surface movement and deformation characteristics of loess gully landform in Northern Shaanxi

open access: yesMeitan kexue jishu, 2023
In order to study the surface movement and deformation characteristics of the collapsible loess gully landform in the northern Shaanxi mining area in the middle reaches of the Yellow River Basin, the N1212 working face in the loess gully area of the ...
Guomou SHI   +3 more
doaj   +1 more source

Applicability of two grey models in earth-surface subsidence prediction of mining area

open access: yesGong-kuang zidonghua, 2020
Existing dynamic single-point subsidence prediction methods of mining area earth-surface are mainly based on traditional leveling measurement data, which have single monitoring mode, high cost and easily destroyed observation points, and cannot guarantee
SHI Xiaoyu   +4 more
doaj   +1 more source

Calculation of Subsidence due to Longwall Mining with Overburden Grouting and Its Application

open access: yesGeofluids, 2022
This paper presents a prediction method of mining-induced surface subsidence due to longwall mining with overburden grouting, which has been proven an effective method to mitigate the overburden failure. This paper proposes a partial overburden grouting (
Hewen Ma, Yadong Ji, Shidong Wang
doaj   +1 more source

Surface dynamic subsidence prediction model based on multi-function crossover and its application

open access: yesMeikuang Anquan, 2023
In order to study the dynamic influence of working face mining on surface subsidence, taking a mine in Wuhai as the engineering background, the prediction function model of surface dynamic subsidence is constructed by using Knothe time function and ...
Wencai WANG   +4 more
doaj   +1 more source

Simulation of rock salt dissolution and its impact on land subsidence [PDF]

open access: yes, 2014
Extensive land subsidence can occur due to subsurface dissolution of evaporites such as halite and gypsum. This paper explores techniques to simulate the salt dissolution forming an intrastratal karst, which is embedded in a sequence of carbonates, marls,
A. Younes   +7 more
core   +1 more source

Research on Surface Subsidence of Long‐Span Underground Tunnel [PDF]

open access: yesAdvances in Civil Engineering, 2021
In the process of urban rail transit construction, underground excavation method is often used in subway station construction. Based on a large number of measured data of Qingdao Metro Line 3, this paper analyzes and studies the ground subsidence law of long‐span shallow buried excavation station.
Jun Yan   +8 more
openaire   +2 more sources

Study on law of surface subsidence movement and deformation in Daliuta Coal Mine

open access: yesMeikuang Anquan, 2021
Taking Daliuta Mine as the engineering background, the law of surface movement and subsidence observation in Daliuta Mine was studied by using numerical simulation method and field data analysis.
SUN Qiyu   +5 more
doaj   +1 more source

MONITORING AND ANALYZING THE SURFACE SUBSIDENCE IN LANGFANG BY TIME-SERIES INTERFEROMETRIC RADAR TECHNIQUE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
In this paper, the subsidence change maps in Langfang were obtained using ASAR images covering Langfang area acquired from August 2007 to September 2010 with the Persistent Scatterer Interferometric Synthetic Aperture Radar (PSInSAR) technique.
L. Zhou   +6 more
doaj   +1 more source

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