Prediction of cavern configurations from subsidence data

Fuenkajorn, Kittitep; Archeeploha, Sarayuth

doi:10.1016/j.enggeo.2009.10.003

Cited by 17 publications

(9 citation statements)

References 3 publications

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“…Caramanna et al, 2008Panno et al, 2013) and numerical modeling methods (e.g. Shalev et al, 2006;Fuenkajorn and Archeeploha, 2010;Lollino et al, 2013). Given the high resolution, the simple application (especially in areas of complicated legal permissions) and the cost-efficiency both of the equipment and logistics, a similar approach may be appropiate for scientific research and early-warning analysis in other subsidence and sinkhole affected regions worldwide.…”

Section: Temporal Evolution Of Surface and Groundwater Flow From Satementioning

confidence: 99%

Sinkholes, subsidence and subrosion on the eastern shore of the Dead Sea as revealed by a close-range photogrammetric survey

et al. 2017

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Ground subsidence and sinkhole collapse are phenomena affecting regions of karst geology worldwide. The rapid development of such phenomena around the Dead Sea in the last four decades poses a major geological hazard to the local population, agriculture and industry. Nonetheless many aspects of this hazard are still incompletely described and understood, especially on the eastern Dead Sea shore. In this work, we present a first low altitude (< 150 m above ground) aerial photogrammetric survey with a Helikite Balloon at the sinkhole area of Ghor Al-Haditha, Jordan. We provide a detailed qualitative and quantitative analysis of a new, high resolution digital surface model (5 cm px −1) and orthophoto of this area (2.1 km 2). We also outline the factors affecting the quality and accuracy of this approach. Our analysis reveals a kilometer-scale sinuous depression bound partly by flexure and partly by nontectonic faults. The estimated minimum volume loss of this subsided zone is 1.83 • 10 6 m 3 with an average subsidence rate of 0.21 m yr −1 over the last 25 years. Sinkholes in the surveyed area are localized mainly within this depression. The sinkholes are commonly elliptically shaped (mean eccentricity 1.31) and clustered (nearest neighbor ratio 0.69). Their morphologies and orientations depend on the type of sediment they form in: in mud, sinkholes have a low depth to diameter ratio (0.14) and a long-axis azimuth of NNE-NE. In alluvium, sinkholes have a higher ratio (0.4) and are orientated NNW-N. From field work, we identify actively evolving artesian springs and channelized, sediment-laden groundwater flows that appear locally in the main depression. Consequently, subrosion, i.e. subsurface mechanical erosion, is identified as a key physical process, in addition to dissolution, behind the subsidence and sinkhole hazard. Furthermore, satellite image analysis links the development of the sinuous depression and sinkhole formation at Ghor Al-Haditha to preferential groundwater flow paths along ancient and current wadi riverbeds.

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Section: Temporal Evolution Of Surface and Groundwater Flow From Satementioning

confidence: 99%

Sinkholes, subsidence and subrosion on the eastern shore of the Dead Sea as revealed by a close-range photogrammetric survey

et al. 2017

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“…In the available literatures [15][16][17], commercial numerical software, such as FLAC 3D and SPECTROM-32, were successful in predicting the surface subsidence above single or group of salt cavern gas storages. The calculations also indicate the poor versatility and time-consuming of the numerical simulations in complex situations by the 3D finite element technology.…”

Section: Introductionmentioning

confidence: 99%

Dynamic subsidence prediction of ground surface above salt cavern gas storage considering the creep of rock salt

Wang

Yan

Yang

et al. 2010

Sci. China Technol. Sci.

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A new model is proposed to predict the dynamic subsidence of ground surface above salt cavern gas storage during the leaching and storage, which takes into account the creep of rock salt. In the model, the extended form of Gaussian curve is adopted to figure out the shape of subsidence areas. The corresponding theoretical formulas are derived. In addition, parameters are studied to investigate the surface subsidence as a function of the salt ejection rate, internal pressure, buried depth, diameter, height, running time, etc. Through an example, the subsidence of the salt cavern gas storage located at Jiangsu of China obtained by the new model was compared with those by Peter A F formula, Schober & Sroka formula and FLAC 3D through simulation. The results showed the proposed model is precise and correct, and can meet the actual engineering demands. The surface subsidence is equidirectional with the increase of salt ejection rate, depth, diameter, height, and running time, but reverse to the increase of internal pressure. The depth, diameter, running time and internal pressure have great effects on the subsidence, whereas the salt ejection rate and height have little influences on it.salt cavern gas storage, dynamic subsidence, creep of rock salt, extended form of Gaussian curve, calculation model Citation:Wang T T, Yan X Z, Yang X J, et al. Dynamic subsidence prediction of ground surface above salt cavern gas storage considering the creep of rock salt.

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“…The reason behind such extreme salinity of the samples collected from the piezometers in area A is clearly the localization of the landfill. As mentioned before, the Barycz landfill occupies the former salt mine area, mainly natural hollows and depressions resulting from surface subsidence commonly occurring due to the mining of salt [17,18]. The weight of the deposited waste load causes an extrusion of brine filling the caverns left after rock salt excavation, which due to the permeability of formations, comes into contact with the aquifer (the presumed groundwater flow directions are presented in Fig.…”

Section: Discussionmentioning

confidence: 98%

Long-term changes in surface and groundwater quality in the area of municipal landfill (Barycz, Poland)

Szalińska¹,

d’Obyrn²

2018

Environ. Protect. Eng.

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Data from 15-year lasting monitoring period was investigated to assess the impact of a municipal landfill on the aquatic environment (Barycz, Poland). Surface and groundwater samples were analyzed to determine basic parameters (pH, conductivity, BOD5, COD, TOC, concentrations of NH4 +-N, nitrates, phosphorous, and chlorides), and concentrations of metals (Cd, Cu, Cr, Hg, Pb, and Zn). Parameters characterizing the landfill impact on aquatic environment demonstrated elevated values at the surface waters, especially at sampling site localized directly downstream from the facility. However, detailed assessment of the extent of this impact has been hindered due to overlapping anthropogenic and natural factors. The direct impact of the landfill on groundwater was evident, but limited within the direct proximity of the facility. Due to the specific location of the landfill, at a former salt mining area, the hydrogeologic settings induced a more pronounced impact on surface and groundwater quality. The brine extrusions from the salt formations, due to the growing weight of the waste collected in the landfill, caused an increase in water salinity. The long-term monitoring effort illustrates that chloride contamination has been declining since discontinuation of the salt excavation, however, this depends greatly on the actual hydrogeological conditions in the salt mine.

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Prediction of cavern configurations from subsidence data

Cited by 17 publications

References 3 publications

Sinkholes, subsidence and subrosion on the eastern shore of the Dead Sea as revealed by a close-range photogrammetric survey

Sinkholes, subsidence and subrosion on the eastern shore of the Dead Sea as revealed by a close-range photogrammetric survey

Dynamic subsidence prediction of ground surface above salt cavern gas storage considering the creep of rock salt

Long-term changes in surface and groundwater quality in the area of municipal landfill (Barycz, Poland)

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