La reconnaissance des cavites souterraines par methodes diagraphiques

Cailleux, J. B.; Toulemont, Marcel

doi:10.1007/bf02594193

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…By utilizing geophysical techniques the potentially subsidence-prone and potentially stable areas can be identified and investigated by focused drilling reducing the number of boreholes. Further savings can be made by drilling open holes and collecting chippings instead of coring; this method can be very effective if automated or manual recording of the drill penetration rate is made (Cailleux and Toulemont, 1983;Patterson et al, 1995). However, experience and skill is needed to interpret the drilling rate figures with the identification of the chippings material.…”

Section: Trenching Borehole Investigation and Probingmentioning

confidence: 99%

6.35 Dealing with Gypsum Karst Problems: Hazards, Environmental Issues, and Planning

Cooper

Gutiérrez

2013

Treatise on Geomorphology

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Synopsis/Abstract 153 wordsGypsum dissolves rapidly underground and at the surface forming gypsum karst features that include caves, subsidence areas and sinkholes. Mapping these landforms, understanding the gypsum karst and local hydrogeology, and producing sinkhole susceptibility and hazard maps are crucial for development and public safety. Situations that change the local hydrogeology, such as dams, water abstraction or injection/drainage, can accelerate dissolution and subsidence processes increasing the severity of the problems; dams and canals built on gypsum karst can leak or fail catastrophically. Gypsum karst problems can be mitigated by careful surveying and scientific investigation followed by phased preventive planning, ground investigation and construction incorporating sinkhole-proof designs. Towns and cities, including parts of Paris (France), Dzerzhinksk (Russia), Madrid and Zaragoza (Spain), Birzai (Lithuania) and Ripon and Darlington (UK), are developed on such ground requiring local planning guidelines and special construction methods. Roads, railways, pipelines and bridges are particularly vulnerable to such subsidence and require special consideration.

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Section: Trenching Borehole Investigation and Probingmentioning

confidence: 99%

6.35 Dealing with Gypsum Karst Problems: Hazards, Environmental Issues, and Planning

Cooper

Gutiérrez

2013

Treatise on Geomorphology

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Les diagraphies et les essais de mecanique des sols en place

Bru

Ledoux

Ménard³

et al. 1982

Bulletin of the International Association of Engineering Geolog

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Chapter 16 Geohazards caused by gypsum and anhydrite in the UK: including dissolution, subsidence, sinkholes and heave

Cooper¹

2020

EGSP

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Gypsum and anhydrite are both soluble minerals that form rocks that can dissolve at the surface and underground, producing sulphate karst and causing geological hazards, especially subsidence and sinkholes. The dissolution rates of these minerals are rapid and cavities/caves can enlarge and collapse on a human time scale. In addition, the hydration and recrystallization of anhydrite to gypsum can cause considerable expansion and pressures capable of causing uplift and heave. Sulphate-rich water associated with the deposits can react with concrete and be problematic for construction. This paper reviews the occurrence of gypsum and anhydrite in the near surface of the UK and looks at methods for mitigating, avoiding and planning for the problems associated with these rocks.

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La reconnaissance des cavites souterraines par methodes diagraphiques

Cited by 3 publications

References 2 publications

6.35 Dealing with Gypsum Karst Problems: Hazards, Environmental Issues, and Planning

6.35 Dealing with Gypsum Karst Problems: Hazards, Environmental Issues, and Planning

Les diagraphies et les essais de mecanique des sols en place

Chapter 16 Geohazards caused by gypsum and anhydrite in the UK: including dissolution, subsidence, sinkholes and heave

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