Erosion and stability of a mine soil

Journal Article · Sat Jun 01 04:00:00 EDT 1996 · Journal of Geotechnical Engineering

DOI:https://doi.org/10.1061/(ASCE)0733-9410(1996)122:6(445)· OSTI ID:390054

Wu, T H ^[1]; Stadler, A T ^[2]; Low, C ^[3]

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1. Ohio State Univ., Columbus, OH (United States)
2. Univ. of Colorado, Boulder, CO (United States)
3. Low (Chin-wah), Kuala Lumpur (Malaysia)

Mine soils developed from mine spoils commonly have a wide range of particle size. The slopes of old spoil piles usually are marked by gullies due to years of uncontrolled erosion. These characteristics raise questions about applicability of available theories and models for estimating runoff and erosion. An investigation was made to determine whether available erosion models can work for mine soils and can account for gully erosion. The investigation at an abandoned surface mine consisted of measurement of soil and sediment properties, measurement of runoff and erosion, observations of armor by rock fragments on gully floor, and calculations with available theories of sediment transport and slope stability. The results at this site suggest that (1) predictions with the ANSWERS model have about the same accuracy as those made for agricultural lands; (2) armor provided by rock fragments are temporary as they are periodically removed by debris flows; (3) detachment by rainfall impact is the primary cause of erosion on short steep slopes; and (4) a simplified method can be used for estimating erosion on such slopes.

• OSTI ID: 390054
• Journal Information: Journal of Geotechnical Engineering, Journal Name: Journal of Geotechnical Engineering Journal Issue: 6 Vol. 122; ISSN 0733-9410; ISSN JGENDZ
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
ABANDONED SITES
CALCULATION METHODS
COAL MINING
EROSION
MATHEMATICAL MODELS
OHIO
RUNOFF
SPOIL BANKS
STABILIZATION
WATER POLLUTION