A Coal Mine Dump Stability Analysis—A Case Study

• 作者: Ashutosh Kainthola Dhananjai Verma S. S. Gupte T. N. Singh
• 来源期刊: 地质材料(英文)
• 学科: 医学
• 关键词: DUMP Stability Factor of Safety SHEAR Strength REDUCTION Wardha VALLEY
• 年，卷（期）: 2011,（1）
• 页码范围: 1-13
• 页数: 13页
• 分类号: R73

摘要

The present paper mainly deals with a case study of failed dump slope in western coalfield limited, Nagpur, India. A huge mass of debris flow had happened during the routine the activity of mining. The failed dump had a height of 75 m with 43? slope angle which had slipped forward by 18m. Representative loose dump material samples were collected from the site and tested to determine the physico-mechanical properties of dump material. The dump material consisted of loose fragments and lumps of friable sandstone, shale, clay and carbonaceous shale. To evaluate the condition of failure, a well known, shear strength reduction tech-nique has been applied to achieve the desired factor of safety using two dimensional finite element code. Fi-nally, a economical, sustainable and stable dump angle and height has been suggested for smooth and safe disposal of the dump.