EROSION AND STABILITY OF A MINE SOIL

A wide range of particle sizes are found in mine soils developed from mine spoils. The slopes of old spoil piles, marked by gullies, often reveal years of uncontrolled erosion. These characteristics raise questions about applicability of available theories and models for predicting runoff and erosion. An examination was conducted to find out whether available erosion models can be used for mine soils and if they can account for gully erosion. The study of 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 computations with available theories of sediment transport and slope stability. The findings from the site reveal that: 1) predictions with the ANSWERS model have similar accuracy to 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 technique can be used for estimating erosion on such slopes.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339410
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Wu, T H
  • Stadler, A T
  • Low, C-W
• Publication Date: 1996-6

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 445-453
• Serial:
  • Journal of Geotechnical Engineering
  • Volume: 122
  • Issue Number: 6
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9410

Subject/Index Terms

• TRT Terms: Erosion; Gullies; Mathematical models; Mines; Runoff; Sedimentation; Slope stability; Soils; Weather forecasting
• Uncontrolled Terms: Models; Sediment transport
• Subject Areas: Geotechnology; Highways; Hydraulics and Hydrology; I42: Soil Mechanics;

Filing Info

• Accession Number: 00726084
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 21 1996 12:00AM