Monitoring technique for seepage line of tailings dam

来源期刊：中南大学学报(英文版)2003年第2期

论文作者：李夕兵 蒋卫东

文章页码：130 - 133

Key words：tailings dam; seepage line; automatic monitoring; shallow refractive seismic

Abstract: An automatic monitoring technique of the seepage line, including the monitoring design, the automatic monitoring system and the backfill technique of the measuring probe of pore-water pressure, was used in a tailings dam, and a shallow refractive seismic method was investigated for obtaining the seepage line of those areas outside the monitoring zone. The results show that the automatic monitoring has the error within±3% relative to piezometric tube method and improves monitoring efficiency greatly, and the shallow refractive seismic method has the error within±10% but expands the area of monitoring. Both of them can be used for a daily measurement in monitoring the seepage line. The result of the automatic monitoring also shows that not only the design of the survey line and the backfill technique of the measuring probe of pore-water pressure are reasonable and economic but also the reliability and safety of the automatic monitoring system are better. Testing result by the shallow refractive seismic method in tailings reveals that the energy excited by hammering iron sheet-pole is strong enough and safe, and that the character of anti-jamming by the detectors with longtailcone is better.