小山水电站工程施工综述

小山水电站工程由钢筋混凝土面板堆石坝、岸坡溢洪道、引水系统及发电厂房组成，在施工充洞大塌方采取先衬砌上半洞，下部边墙用钢筋混凝土柱墙及锚喷支护处理，保证了１９９４的按期实现了大江冰期截流和大坝挡汛、壤土心墙围堰冬期施工。在技施阶段推荐堆石料场，为大坝正常按期填筑提供了可靠保证。坝基开挖采取自下向上分层分阶段开挖施工；上坝施工路分期分层布置，堆石料冰冻季节填筑。增设了引水系统施工支洞，加快了引水隧洞

A summary of the construction of Xiaoshan Hydropower Station

The Xiaoshan Hydropower Station consists of reinforced concrete face rockfill dam, bank spillway, diversion system and power house. In the construction, for the large landslide sections in the diversion tunnel, the upper half tunnel would be lined first and the lower side wall would be treated by the reinforced concrete pillar wall and anchorage shotcrete support, which ensures the achievement of river closure on schedule in 1994, the flood retaining by the dam and the construction of loam core wall cofferdam during winter season. In the technical construction stage, a new rock yard has been recommended in order to provide the reliable guarantee for the normal construction of the dam on scheme. The excavation of dam foundation has been conducted from the bottom to top and by zones and stages. The construction road access to the dam has been arranged by stages and by zones. The rock material has been filled during the frost season. A construction drift for water diversion system has been increased to quicken the construction progress of diversion tunnel.