羊卓雍湖抽水蓄能电站调压井施工

羊湖电站调压井为差动式结构，由竖井和上室组成，上室开挖采用分层梯段开挖和普通爆破方法。竖井开挖采用了临时混凝土衬护壁措施。竖井混凝土衬砌采用人工手拉戎芦提升滑模施工工艺，施工质量优良，节省了人力、木材，缩短了工期。上室混凝土浇筑，内井筒采用木模板，外井筒采用组合钢模板，混凝土外观质量好，外形尺寸准确。

Construction of surge shaft in Yangzhuoyong Lake Hydropower Station

In Yangzhuoyong Lake Hydropower Station, the Surge shaft, a differential structure, is composed of vertical shaft and upper chamber. The excavation of upper chamber was conducted by the methods of bench excavating in layers and common explosion. The temporary concrete lining guard wall method was used in excavating vertical shaft. And The hand raising slip-form construction technique was adopted in the concrete lining for vertical shaft with good quality of construction, saving manpower and timber and shortening the comstruction period. In the concrete placement of the upper chamber, timber form was used in tile inner shaft wall and composite ateel form was used in the outer shaft wall so that a fine-looking concrete and accurate dimensions had been achieved.