Refuse Discharging Field Research And Soil Conservation Measures Tongmaling Bay Mine

Located in dry-hot valley region of Panzhihua Tong Ma Bay Coal Gangue field as the research object, analyzed the form and characteristics of regional hydrology, geology, soil erosion, suggested on the base of dam, gangue dam abutment, drainage culvert, ditches, drainage system, platform of plant measures constitute the gangue field measures of prevention and control system of water and soil keep.(1) The study area the strata exposed for three Triassic daqiaodi formation, a quaternary scattered in the valleys and flat terrain, near the dam site are no folds, no fault fracture zone, have adverse geologic actions landslide, collapse, debris flow and other areas not suitable, the gangue field construction.(2) For the hydraulic erosion type in the study area, surface erosion, gully erosion is the main form of soil erosion, the soil and water loss without construction as the basis, without considering the premise of water and soil conservation measures, comparative analysis of soil and water loss in engineering construction area, increasing the amount of soil erosion prediction.(3) In order to ensure the gangue field pile slope abandoned row formed gangue after, but also to prevent the discharge when the rock rolling down to gangue field downstream Mizoguchi, forming the rolling stones and debris flow disaster, design considerations in the gangue field downstream Mizoguchi narrow sector to build a base of dam, dam foundation with compacted rockfill dam based on the upstream side, laying a layer of60cm thick stone slag filter. (4) The formation of waste of flooding in the rainy season, design in the gangue field bottom construction of drainage culvert drain gully upstream catchment; gangue field on both sides to build dam shoulder ditches on both sides of the flood drainage slope; gangue field three gangue pile platform inside the construction of drains, drainage gangue field surface rainfall generated.(5) Gangue dam along the hill gully from basic dam up step by step with coal gangue backfilling, rolling, cutting slope. For the prevention and control of soil erosion, protect the gangue dam slope is not rain erosion, vegetation restoration, ecological improvement, on the surface of gangue dam and dam slope and top filling soil, and take the herb (heteropogon contortus), Fujimoto (Bougainvillea) and shrubs (Dodonaea viscosa) a combination of vegetation restoration.Through the slope drainage system, perfect retaining and gangue green step stacking, overburden, formed the measures of prevention and control system of soil and water conservation in the gangue field, avoids the serious soil and water loss gangue dumps generated, protection of downstream industrial facilities, highway safety.