关键词: 泥石流防治, 格栅坝, 进水塔, 泥石流监测

Abstract: Dabi gully is located on the left bank, about 400 m upstream the dam site of KL hydropower station. The gully is straight, the main gully is 26.37 km long, the relative height difference of the gully is 2 487 m, and it is a moderately developed debris flow gully with micro-viscous debris flow. Due to construction needs, the dam concrete batching plant of KL hydropower station is arranged in Dabi gully. To guarantee the safety of concrete production and personnel, it is necessary to implement control measures for gully water and debris flow. Based on the topography and geological conditions of Dabi gully and the characteristics of debris flow, control measures such as grid-type dam, discharge tunnel, water intake tower and retaining dam, as well as monitoring instruments such as mud meter level and CCTV are adopted in the design for debris flow control. The design for debris flow control of Dabi gully can provide reference for similar projects in western China.

Key words: debris flow control, grid-type dam, water intake tower, debris flow monitoring