Geotechnical Engineering Problems in the Karst Region of Southern Indiana

Adams, Francis T.; Lovell, C W

doi:10.5703/1288284314078

Cited by 5 publications

(5 citation statements)

References 5 publications

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“…Rock/Pipe Drain -The rock/pipe drain (Adams and Lovell, 1984 and West Virginia SCS, 1991) is a means of sinkhole filling that provides surface drainage to the bedrock opening. The drainage is conveyed to the bedrock opening in rock and/or a pipe.…”

Section: Figure 2: Example Of Permeable Rock Filter Used At a Sinkholmentioning

confidence: 99%

Sinkhole treatment to improve water quality and control erosion in southeastern Minnesota

Kalmes¹,

Mohring²

2018

Karst Geohazards

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Sinkholes in the karst region of southeastern Minnesota present a concern because of potential water quality degradation, erosion, and unsafe conditions. The State of Minnesota recently launched a program to provide cost share and technical assistance to several counties for developing measures to reduce these concerns. Sinkhole treatments such as surface water controls, sinkhole filling techniques, and other specialized treatments were evaluated for implementation under this program.A review of available literature and our experience revealed that, although there were many methods of sinkhole treatment available, a design methodology or framework for selection of the proper treatment method was not available. A design methodology was developed to assist county Soil and Water Conservation District technicians in screening potential sinkhole treatment sites and evaluating possible sinkhole treatments. The methodology for sinkhole treatments was based on the treatment objective, physical conditions of the sinkhole or the sinkhole site, and economics.Several projects were put in place to reduce pollution of groundwater from agricultural and residential sources and to prevent erosion of soil into sinkholes. A particularly }nteresting project involved diverting surface water away from a streamsink that had been shown by dye tracing to be connected to a spring supplying an important state fish hatchery. The sink was suspected of being a major contributor to elevated sediment, nitrate, and pesticide concentrations in the springs, particularly following runoff events. Preliminary results indicate the diversion was successful in improving water quality to the hatchery springs.

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Section: Figure 2: Example Of Permeable Rock Filter Used At a Sinkholmentioning

confidence: 99%

Sinkhole treatment to improve water quality and control erosion in southeastern Minnesota

Kalmes¹,

Mohring²

2018

Karst Geohazards

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“…The first, and by far the most common, is an upward ravelling of soil over a cavity in the bedrock (Sowers, 1978 as stated by Adams and Lovell, 1984). Figure 2 shows the development of a sinkhole over an opening in the rock, which may be a small cave, an enlarged joint or fracture, or a narrow vertical pipe.…”

Section: Evolution Of Sinkholesmentioning

confidence: 99%

“…The second mechanism responsible for sinkhole development is collapse of the soil and rock roof above a cavity. Such a phenomenon is rare, however (Adams, and Lovell, 1984).…”

Section: Evolution Of Sinkholesmentioning

confidence: 99%

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Influence of geological and geotechnical conditions to design a water reservoir in karst area

et al. 2016

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The design of a water reservoir in a site underlain by karstified carbonate rocks, encounters many difficulties mainly due to unpredictable location, dimensions and geometry of the karst structure and voids.The objective of this work is to present part of the investigation work that was carried out in Omalos plateau (W. Crete) where a water reservoir is going to be constructed.The survey was based on geological mapping, geophysical exploration, boreholes drilling, sampling and laboratory testing for the geotechnical parameters determination.The soil thickness that is required to provide stability against soil collapse into voids and the subsequent formation of sinkholes was estimated.The evaluations represent a useful decision-support tool in the management of the investigation results for the design purposes of the water reservoir in Omalos plateau.

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“…The engineering problems found in karst areas include the development of an irregular soil-bedrock contact, the formation of solution features as caves and sinkholes, and the weathering of the carbonate rock to a highly plastic residual soil (Adams and Lovell, 1984). The presence of faults can cause additional foundation problems by compressible gauge, altered wall rock, and offset groundwater levels, as well as highly fractured rock, which may also cause a marked reduction in safe-bearing pressures.…”

Section: Introductionmentioning

confidence: 99%

Rock mass classification of Eocene karstic limestone in New Galala City, Northern Galala Plateau, Gulf of Suez, Egypt

Gouda

Wahed²,

Fayed³

et al. 2022

Egyptian Journal of Geology

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T HE Egyptian Government is aiming to construct new urbanization development projects in order to expand beyond the old Capital; Galala city is one of the greatest new cities projects. The project location is sited on Karstic limestone that necessitates detailed and careful geological and geotechnical studies. The present research is focused on detailed field investigation, rock mass classification, evaluation of rock quality and stability for foundation of the new Galala City and the new highway crossing the karstic Lower Eocene limestone capping the Northern Galala Plateau.Detailed joint characterization is done through careful site investigations to evaluate the different parameters of discontinuities found in five stations. Rock Mass Rating (RMR) as a measure of the strength and rock mass deformation properties is determined to define the limitations in the rock mass and the unstable areas based on study of in-situ strength, groundwater condition, and joint condition measurements. Slope Mass Rating (SMR) is evaluated depending upon the RMR value added to factors including dip and dip direction of slope in relation to the different joint sets and also excavation method in the different study locations and the effect of geologic structures include fractures, joints, faults and damage zones. Kinematic analysis is performed to detect the potentiality of the different types of failure modes in the selected sites.The study specifies good (Class II) to fair (Class III) in RMR and Normal rock quality and partly stable in SMR classification for the studied locations. Kinematic analysis indicates the possibility of planar, wedge and toppling failure in most locations, however, the most critical situation is found in two location; one along the asphaltic road and the other on a NW trending scarp limiting the city location from its norther border. The first location is considered safe for wedge failure with factor of safety higher the unity under static and dynamic conditions. The second location is unsafe for wedge failure with safety factor smaller than unity even under static condition.The study indicates a good foundation for urbanizing a new city if the effect of human urban water factors on the foundation bedrock karstic limestone is taken into account. The presence of a scarp bounding the city location from its northeastern border represents a critical situation that must be taken in consideration.

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Geotechnical Engineering Problems in the Karst Region of Southern Indiana

Cited by 5 publications

References 5 publications

Sinkhole treatment to improve water quality and control erosion in southeastern Minnesota

Sinkhole treatment to improve water quality and control erosion in southeastern Minnesota

Influence of geological and geotechnical conditions to design a water reservoir in karst area

Rock mass classification of Eocene karstic limestone in New Galala City, Northern Galala Plateau, Gulf of Suez, Egypt

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