一、概述石泉壩址以上为一长达30公里的峡谷,大部为高山峻岭,缺乏施工场地;壩址以下,则为石泉小盆地,地势较为宽坦,可利用作为施工场地。 壩址位于陕谷出口上游约500米处,右岸有汉白公路经过,为陕南交通要道,河道在壩址上游较平直,下游则较弯曲,由于上游受峡谷约束,下游至盆地突然扩散,流速减缓,因此形成下游接连5个砂滩,左右分布,储有产量丯富、质量优良的砂卵石料,为建筑大壩的天然良好的建筑材料。 I. Overview Shiquan dam above a canyon up to 30 km, most of the mountains, the lack of construction sites; below the dam site, Shiquan small basin, the terrain is relatively wide and can be used as a construction site. The dam site is located about 500 meters upstream from the exit of the Shaanxi valley. There is a Han Bai highway on the right bank, which is the traffic artery of southern Shaanxi. The upper reaches of the dam are relatively straight and the lower reaches are more curved. Due to the upper reaches being constrained by the gorge, Diffusion, slowing down the flow rate, thus forming a downstream five consecutive sand beach, distributed around, storage yield rich, high quality sand and gravel material for the construction of dam natural good building materials.