Large-scale dynamic compaction demonstration using WIPP salt: Fielding and preliminary results

Ahrens, E.H.; Hansen, Francis D.

doi:10.2172/188536

Cited by 1 publication

(1 citation statement)

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“…Creep closure will densify crushed salt placed within the shaft. It has been demonstrated that crushed salt may be compacted to high density (90% of intact density) and low permeability on a large scale (Ahrens and Hansen, 1995); it is expected to function as an excellent seal.…”

Section: Crushed Saltmentioning

confidence: 99%

Case studies of sealing methods and materials used in the salt and potash mining industries

Eyermann¹,

Sambeek²,

Hansen³

1995

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Sealing methods and materials currently used in salt and potash industries were surveyed to determine if systems analogous to the shaft seal design proposed for the Waste Isolation Pilot Plant (WIPP) exist. Emphasis was first given to concrete and then expanded to include other materials. Representative case studies could provide useful design, construction, and performance information for development of the WIPP shaft seal system design. This report contains a summary of engineering and construction details of various sealing methods used by mining industries for bulkheads and shaft liners. Industrial experience, as determined from site visits and literature reviews, provides few examples of bulkheads built in salt and potash mines for control of water. Sealing experiences representing site-specific conditions often have little engineering design to back up the methods employed and even less quantitative evaluation of seal performance. Cases examined include successes and failures, and both contribute to a database of experiences. Mass salt-saturated concrete placement under ground was accomplished under several varied conditions. Information derived from this database has been used to assess the performance of concrete as a seal material. Concrete appears to be a robust material with successes in several case studies. CONTENTS

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Section: Crushed Saltmentioning

confidence: 99%