| 泥岩地质条件下沙坪水电站调压井开挖施工技术 |
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| 引用本文： | 王克生,敖国辉. 泥岩地质条件下沙坪水电站调压井开挖施工技术[J]. 四川水力发电, 2008, 27(Z1) |
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| 作者姓名： | 王克生 敖国辉 |
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| 作者单位： | 中国水利水电第五工程局有限公司,四川,成都,610066 |
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| 摘 要： | 沙坪水电站调压井工程施工区属泥岩地质带,为确保井筒开挖的施工质量和进度,以及为确保开挖围岩稳定、安全,对此泥岩构造特点与力学性征进行了分析,针对分析情况,确定了开挖施工程序和方案.施工过程中,不断优化爆破参数,对井筒开挖围岩采用多方式联合系统进行强支护,并对井口和底部隧洞交叉处等关键部位进行加固处理.通过开挖施工技术的控制,取得了较好的效果,可供泥岩地质条件下同类工程参考.
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| 关 键 词： | 泥岩地质条件 沙坪水电站 调压井工程 开挖 支护 施工技术 |
Construction Technology for Surge Shaft Excavation under Mudstone Geological Condition at Shaping Hydropower Station |
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| WANG Ke-sheng,AO Guo-hui. Construction Technology for Surge Shaft Excavation under Mudstone Geological Condition at Shaping Hydropower Station[J]. Sichuan Water Power, 2008, 27(Z1) |
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| Authors: | WANG Ke-sheng AO Guo-hui |
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| Affiliation: | WANG Ke-sheng AO Guo-hui(Sinohydro Engineering Bureau 5 Corporation,Chengdu,Sichuan,610066,China) |
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| Abstract: | Construction area of Shaping hydropower station surge shaft is in mudstone geological zone.In order to ensure construction quality and progress for shaft excavation and stability and safety of surrounding rocks,this mudstone feature and its geotechnical property were analyzed and excavation procedure and option were defined based on analysis results.During construction,blasting parameters had been optimized frequently.Surrounding rocks along the shaft were strongly supported by combined support system.Some ... |
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| Keywords: | mudstone geological condition Shaping hydropower station surge shaft project excavation support construction technology |
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