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临潼县地处关中平原中部,自1959年以来,在黄土地区先后修建了中型水库1座,小<一>型水库7座,小<二>型水库15座,这些水库的溢洪道都修建在土基上。最初,由于设计经验不足,土基溢洪道的砌护设计仅按一般要求进行,因之在投入运行后曾先后出现过一些问题。譬如,中型水库零河水库的溢洪道,原设计是浆砌石砌护,陡槽底板直接与土基接触。1960年建成后,于1970年7月1日第一次泄流,流量仅为18m~3/s,不足设计泄量的3％,而发生陡槽上段砌护面被冲坏,接着水流直接冲进土基,造成溢洪道砌护大面积破坏,完全丧失了过水能力。又如小<一>型水库溪河水库的溢洪道,原砌护设计与上述零河水库的相同,1971年建
Lintong County is located in the central part of the Guanzhong Plain. Since 1959, a total of 1 medium-sized reservoirs, 7 small reservoirs and 15 small reservoirs have been built in the loess area. The spillways of these reservoirs are built on the soil Basically. Initially, due to lack of design experience, the design of the earth-based spillway was based only on the general requirements, so some problems have appeared after it was put into operation. For example, the mid-size reservoir spillway Zero River Reservoir, the original design is masonry masonry, chute floor directly in contact with the foundation. After the project was completed in 1960, the first discharge took place on July 1, 1970, with a flow rate of only 18m 3 / s, which is less than 3% of the design discharge volume. However, Burst into the foundation, resulting in large-scale destruction of spillway masonry, completely lost water capacity. Another example is the spillway of a small reservoir of Xihe Reservoir, which was the same as that of the above zerohe reservoir, built in 1971