地下洞室群开挖支护施工进度计划表工程项目开挖量（104m3）2004年2005年2006年2007年2008年7891011121234567891011121234567891011121234567891011121234567891011121234567891011引水系统1#施工支洞0.350.190.192#施工支洞1.730.350.350.350.350.35上平段5.460.910.910.910.910.910.91竖井段导井7.55扩挖0.580.580.580.580.580.580.580.580.580.580.580.580.58下平段3.860.640.640.640.640.640.64厂房系统主厂房运输洞9.630.960.960.960.960.960.960.960.960.960.96厂房通风洞和空调房1.670.560.560.56主变室通风洞1.10.550.553#施工支洞（第一层排水廊道扩挖）1.390.150.310.310.310.314#施工支洞（厂房疏散通道扩挖）0.220.225#施工支洞0.480.48厂房疏散通道0.10.1厂坝电梯井及通道2.850.160.150.30.30.30.30.30.30.30.30.15主厂房排风洞0.160.060.1主变运输洞及交通洞0.460.310.15主厂房54.291.021.021.021.021.021.021.021.222.442.442.111.781.781.780.892.862.862.321.791.792.092.091.052.092.091.041.461.460.970.970.48母线洞3.880.660.660.660.641.27主变室9.880.420.420.580.580.580.580.580.290.810.810.810.40.860.860.860.43主排风洞3.920.530.530.530.270.40.40.40.40.4出线洞4.670.360.360.360.360.360.360.360.360.360.360.360.360.36排水廊道4.040.080.150.150.150.150.150.150.150.150.150.420.420.420.420.140.140.140.080.080.080.080.080.080.080.08尾水系统尾闸室交通洞2.180.620.620.620.316#施工支洞0.510.340.177#施工支洞0.120.050.078#施工支洞1.330.170.330.330.330.179#施工支洞6.230.550.550.550.550.550.550.70.70.450.450.230.4310#施工支洞0.390.20.2通风竖井0.05尾闸室排风洞0.120.12尾调室排风洞0.380.190.19尾水检修闸门室10.650.230.460.460.460.230.180.370.180.390.390.390.190.240.480.480.470.470.480.480.480.40.40.380.360.360.270.270.270.270.16尾水调压室19.810.380.380.380.380.380.70.70.71.051.051.050.290.580.580.580.580.580.580.580.580.580.580.580.580.580.580.580.580.580.450.450.450.450.23尾水支洞25.470.751.51.51.51.51.51.911.911.911.911.911.911.911.911.910.96尾水洞54.542.062.062.062.062.062.062.062.062.062.062.062.062.062.062.062.062.062.062.062.062.062.062.062.061.070.80.80.80.8合计239.4701.511.512.923.153.154.874.466.266.085.975.756.317.639.199.399.39.037.737.17.656.766.656.5310.6810.528.7389.16.874.566.224.782.653.693.62.552.312.311.711.420.931.250.450.230.800.80.8注：尾水支洞工程量中包括厂房第Ⅸ层部分和尾水管工程量计5.3×104m3；尾调室底部导洞工程量0.48×104m3。