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Effect of bedrock ridges on formation of earth fissures due to land subsidence
https://orcid.org/0000-0002-0955-5171
Abstract Field observations and previous studies indicate the significant effect of geological setting and bedrock topography on the formation of earth fissures due to land subsidence caused by groundwater withdrawal. One of the main situations that is prone to the formation of tensile ground ruptures is the presence of a protuberance at the base of the aquifer, which is called the bedrock ridge. This study numerically investigates the effect of bedrock ridges with different geometries on the profile of cracks created in the ground surface in areas where subsidence due to aquifer overexploitation occurs. For this purpose, a fully coupled nonlinear numerical model was verified by experimental and field results and then the validated model was used for a comprehensive parametric analysis. The results of the analysis show that the two parameters of bedrock ridges that are very important in the formation of earth fissures are height ratio and slope of the ridge. As the height ratio and slope of the ridge increase, the probability of earth fissures increases, and for ridge height ratios greater than 0.5, earth fissures are more likely to occur.
Effect of bedrock ridges on formation of earth fissures due to land subsidence
https://orcid.org/0000-0002-0955-5171
Abstract Field observations and previous studies indicate the significant effect of geological setting and bedrock topography on the formation of earth fissures due to land subsidence caused by groundwater withdrawal. One of the main situations that is prone to the formation of tensile ground ruptures is the presence of a protuberance at the base of the aquifer, which is called the bedrock ridge. This study numerically investigates the effect of bedrock ridges with different geometries on the profile of cracks created in the ground surface in areas where subsidence due to aquifer overexploitation occurs. For this purpose, a fully coupled nonlinear numerical model was verified by experimental and field results and then the validated model was used for a comprehensive parametric analysis. The results of the analysis show that the two parameters of bedrock ridges that are very important in the formation of earth fissures are height ratio and slope of the ridge. As the height ratio and slope of the ridge increase, the probability of earth fissures increases, and for ridge height ratios greater than 0.5, earth fissures are more likely to occur.
Effect of bedrock ridges on formation of earth fissures due to land subsidence
https://orcid.org/0000-0002-0955-5171
Abstract Field observations and previous studies indicate the significant effect of geological setting and bedrock topography on the formation of earth fissures due to land subsidence caused by groundwater withdrawal. One of the main situations that is prone to the formation of tensile ground ruptures is the presence of a protuberance at the base of the aquifer, which is called the bedrock ridge. This study numerically investigates the effect of bedrock ridges with different geometries on the profile of cracks created in the ground surface in areas where subsidence due to aquifer overexploitation occurs. For this purpose, a fully coupled nonlinear numerical model was verified by experimental and field results and then the validated model was used for a comprehensive parametric analysis. The results of the analysis show that the two parameters of bedrock ridges that are very important in the formation of earth fissures are height ratio and slope of the ridge. As the height ratio and slope of the ridge increase, the probability of earth fissures increases, and for ridge height ratios greater than 0.5, earth fissures are more likely to occur.
Effect of bedrock ridges on formation of earth fissures due to land subsidence
Safari Ghaleh, Armin (author) / Shahir, Hadi (author)
2022
Article (Journal)
Electronic Resource
English
BKL:
56.00$jBauwesen: Allgemeines
/
38.58
Geomechanik
/
38.58$jGeomechanik
/
56.20
Ingenieurgeologie, Bodenmechanik
/
56.00
Bauwesen: Allgemeines
/
56.20$jIngenieurgeologie$jBodenmechanik
RVK:
ELIB18
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