关键词: 施工难点, 施工方案, 黄金坪水电站, 混凝土防渗墙

Abstract:

The problems such as complex geological condition, a lot of boulders, narrow construction field and construction interference etc. were existed in the construction of impervious wall for energy dissipation pool of Huangjinping Hydropower Station. According to the analysis, the shaped charge blasting and borehole drilling in groove were adopted for the boulder stratum etc.; the special positive grout with high viscosity was adopted for seepage blocking in hollow space. Under the given construction technology, the detail construction scheme was made to ensure the smooth construction.

Key words: construction difficulty, construction scheme, Huangjinping Hydropower Station, concrete impervious wall