00371325

Component

http://onlinepubs.trb.org...s/trr/1982/873/873-005.pdf

http://scholar.google.com...rews&publication_year=1982

The results of a study of the impacts of slaking on surface mine spoils in the Appalachian Basin are discussed. Representative samples were collected for laboratory analyses from core borings near the active highwall and from test pits excavated in fresh and 2-, 5-, and 10-year-old spoils from four selected mine sites. Extensive qualitative and semiquantitative data were collected on the behavior, causes, and effect of slaking materials. Three slaking modes were identified in the field: (a) slaking to constituent grain size; (b) chip slaking to thin, platy fragments; and (c) slab or block slaking to large, approximately equidimensional fragments. These modes are dependent on inherent material properties such as bedding, cementation, and grain size and may affect overall spoil pile or embankment stability. Slaking to inherent grain size promoted surface crusting, reducing infiltration and accelerating sheet erosion. Stability problems in embankments and spoil piles can be anticipated by observing the rate, degree, and modes of slaking. (Author)

Publication of this paper sponsored by Committee on Engineering Geology. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.

01411672

pp 23-28

1982

Transportation Research Record

61st Annual Meeting of the Transportation Research Board

0309034027

Digital/other

Figures (3) ; Maps (1) ; References (5) ; Tables (2)

Bedding; Blocks; Bonding; Chippings; Embankments; Grain size (Geology); Mines; Slaking; Soil stabilization; Spoil; Stability (Mechanics)

Stabilization

Geotechnology; Highways; I42: Soil Mechanics

TRIS, TRB

Mar 31 1983 12:00AM

• DESIGN OF CUT SLOPES IN OVERCONSOLIDATED CLAYS
• FAILURE OF SLOPES IN WEATHERED OVERCONSOLIDATED CLAY
• FIELD EVALUATION OF RAPID DATA COLLECTION SYSTEM FOR ROCK SLOPE STABILITY ANALYSIS
• PREDICTION OF SOIL PROPERTIES FROM SIMPLE INDICES
• RELEVANCE OF DURABILITY TESTING OF SHALES TO FIELD BEHAVIOR
• SLOPE STABILITY IN THE WASHINGTON, D.C., AREA: CRETACEOUS CLAYS
• STANDARDIZED TESTS FOR COMPACTED SHALE HIGHWAY EMBANKMENTS
• STATISTICAL ANALYSIS OF SHALE DURABILITY FACTORS
• THE MALIBU LANDSLIDE