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对陕西省淤地坝安全大检查专项行动中陕北大、中型淤地坝的建坝密度、实测拦泥库容、单坝控制面积等指标进行了实地调查和数据整理。结果表明,陕北大、中型淤地坝控制面积为28 703.84 km2,拦沙总量达4.11×1015kg,反映了淤地坝具有显著的拦泥淤地作用。淤地坝的建坝密度、实测拦泥库容、单坝控制面积,两两成正相关关系。陕北榆林市已淤成的大、中型淤地坝地主要用于种植农作物。但种植作物太过单一,而延安市已淤成的大、中型淤地坝地只局限于拦截泥沙。陕北淤地坝主要的管护方式为集体管护。淤地坝各部件中最严重的安全隐患是坝体隐患。
In Shaanxi Province silt dam safety inspection special operations in northern Shaanxi large and medium-sized silt dam construction density, measured silt storage capacity, control area of single dam and other indicators of field surveys and data collation. The results show that the control area of large and medium-sized silt dams in northern Shaanxi is 28 703.84 km2 and the total sediment-holding amount is 4.11 × 1015 kg, which reflects that the silt dam has a significant function of blocking mud and silt. Warming dam construction dam density, measured mud storage capacity, control area of single dam, two into a positive correlation. Yulin City, northern Shaanxi has silted large, medium-sized silt dam is mainly used for planting crops. However, planting crops is too single, and Yan’an has silted the large and medium-sized silt dam is only limited to intercept silt. The main management and protection methods of the silt dam in northern Shaanxi are collective management and protection. Warming dam components of the most serious security risks are hidden dangers of the dam.