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Cementitious Grout Infilling Of Deep, Brine-Filled Salt Mines in Northwich, UK
This paper presents a case history of the stabilisation by grouting of four 5-m high brine-filled salt mines located at approximately 90 m depth, in the Cheshire Basin in the United Kingdom. The stabilisation works involved pumping 800,000m3 of a cement, brine and Pulverised Fuel Ash (PFA) grout mix into the mines. The paper describes ≤ The scope and practicalities of the project, ≤ The work done to map the mines, ≤ Laboratory tests and site trials to develop an understanding of the basic science of how cementitious compounds develop in a brine environment, ≤ Computational fluid dynamics analysis and site trials carried out to develop the techniques to avoid dispersion and segregation of the grout in the mines, ≤ The comprehensive regime of quality control testing adopted throughout the infilling process, ≤ The validation of the work, including trial grouting, CPT and coring of the grout. Finally, the key lessons learnt during the technical development of this unusual project are presented.
Cementitious Grout Infilling Of Deep, Brine-Filled Salt Mines in Northwich, UK
This paper presents a case history of the stabilisation by grouting of four 5-m high brine-filled salt mines located at approximately 90 m depth, in the Cheshire Basin in the United Kingdom. The stabilisation works involved pumping 800,000m3 of a cement, brine and Pulverised Fuel Ash (PFA) grout mix into the mines. The paper describes ≤ The scope and practicalities of the project, ≤ The work done to map the mines, ≤ Laboratory tests and site trials to develop an understanding of the basic science of how cementitious compounds develop in a brine environment, ≤ Computational fluid dynamics analysis and site trials carried out to develop the techniques to avoid dispersion and segregation of the grout in the mines, ≤ The comprehensive regime of quality control testing adopted throughout the infilling process, ≤ The validation of the work, including trial grouting, CPT and coring of the grout. Finally, the key lessons learnt during the technical development of this unusual project are presented.
Cementitious Grout Infilling Of Deep, Brine-Filled Salt Mines in Northwich, UK
Brooks, T. G. (author) / O'Riordan, N. J. (author) / Fernandes, T. (author)
Proceedings of the Fourth International Conference on Grouting and Deep Mixing ; 2012 ; New Orleans, Louisiana, United States
Grouting and Deep Mixing 2012 ; 1958-1967
2012-08-17
Conference paper
Electronic Resource
English
Grouting , Highways and roads , Chemical grouting , Anchors , Salt , Cement , Cutoffs , Piles , Mixing , United Kingdom , Mining , Foundations , Hydraulic structures
Cementitious Grout Infilling of Deep, Brine-Filled Salt Mines in Northwich, UK
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