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陕西省长安县石砭峪水库,位于秦岭北麓渭河水系滈河支流的石砭峪河上,是一座以灌溉为主,结合蓄洪、发电、养鱼的综合利用工程。枢纽工程包括大坝、溢洪道、输水洞和一级电站。坝高七十米,总库容一千八百六十万立米。坝体总方量141万立米,堆石131万立米。水库建成后可灌溉农田十九万七千亩。库址河谷峡窄,坝底宽70米,顶长197米,地质单纯,为片麻花岗岩,岩性比较坚硬,裂隙较发育,构造比较简单。坝型经过技术经济比较,决定采用定向爆破沥青砼斜墙堆石坝方案。
Chang’an County, Shaanxi Province Shiyan valley reservoir, located in the Qinling Mountains Weihe River tributary of the tributaries of Shijiayu River, is a mainly irrigation, combined flood storage, power generation, fish utilization project. Hubs include dams, spillways, waterways and a power plant. Dam height of 70 meters, the total storage capacity of 18.6 million cubic meters. The total volume of the dam is 1.41 million cubic meters and the rockfloor is 1.31 million cubic meters. Upon completion, the reservoir will irrigate 197,000 acres of farmland. The site of the valley gorge narrow, the bottom width of 70 meters, the top length of 197 meters, simple geological, as gneiss granite, lithology is relatively hard, more developed fractures, the structure is relatively simple. Dam through technical and economic comparison, decided to use directional blasting asphalt concrete inclined rockfill dam program.