论文部分内容阅读
黄土高原地区的多沙粗沙区已建成了8.5万座大、中、小型淤地坝,以吴堡为界,多沙粗沙区的分布是南少北多,而坝库的分布情况正相反,是南多北少,在粗泥沙集中来源区的北部,坝库分布较少。以上情况除了技术方面的原因外,也有规划、政策、认识、投资等方面的原因,需要认真探究。针对多沙粗沙区的粗沙利用、砒砂岩地区筑坝技术、投资不足、兴建大型拦泥库、风沙入河及小水淤大水冲以及“十大孔兑”等问题提出了相应的建议。
In the area of sandy loess plateau, there are 85,000 large, medium and small warping dams built. With Wubao as the boundary, the distribution of sandy and sandy area is less than north and north, and the distribution of the dam is positive On the contrary, it is less in the southern and northern part of the country. In the northern part of the area where the coarse sediment concentrates, there are fewer dams. In addition to the above reasons for technical reasons, but also planning, policy, understanding, investment and other reasons, you need to seriously explore. In view of the problems such as coarse sediment utilization in coarse and coarse sand area, damming technology in 砒 sandstone area, insufficient investment, construction of large-scale silt reservoir, wind-blown river and small floodwaters, and “Top Ten Hole Confluence” Suggest.