| 超高地热条件下特长引水隧洞降温关键技术 |
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| 引用本文： | 臧洪敏,;李树忱,;马腾飞,;张露晨,;王述磊.超高地热条件下特长引水隧洞降温关键技术[J].土工基础,2014(4):44-47. |
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| 作者姓名： | 臧洪敏 ;李树忱 ;马腾飞 ;张露晨 ;王述磊 |
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| 作者单位： | [1]山东省路桥集团有限公司,济南250021; [2]山东大学,济南250061; [3]中铁十四局集团有限公司,济南250000 |
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| 摘 要： | 娘拥水电站引水隧洞罕见的超高地热给隧洞施工带来了极大的难度,爆破后岩体表面温度达75℃,涌水最高温度为82℃,洞内环境温度高达到53℃。研究建立了超高地热条件下隧洞通风降温系统,洞内环境温度降至30℃以下,确保了良好的施工环境,为超高地热段隧洞的正常建设创造了有利条件。
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| 关 键 词： | 引水隧洞 超高地热 降温措施 技术 |
Construction of a Long Water Diversion Tunnel under High Geo-thermal Temperature Conditions |
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| Affiliation: | ZANG Hongmin , LI Shuchen , MA Tengfei , ZHANG Luchen , WANG Shulei (1. Shandong Luqiao Group Co. , Ltd. , Jinan, 250021 ;2. Shandong University, Jinan 250061 ; 3. China Railway 14th Construction Bureau Co. , Ltd. , Jinan 250000) |
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| Abstract: | The excessively high geo-thermal temperature in a water diversion tunnel of Niangyong Hydraulic Electricity Genera- tion Station resulted in serious construction difficulties： the surface temperature of rock mass after the blasting reached 75 degrees Celsius; the highest water rushed in the tunnel was 82 degrees Celsius; the ambient temperature in the tunnel was 53 degrees Celsius. A temperature reduction system through the ventilation was established and the temperature in the tunnel was able to be reached to 30 degrees Celsius. A safe and comfortable tunnel excavation condition could be developed under the exces- sively high geo-thermal conditions. |
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| Keywords: | Water Diversion Tunnels Excessive High Geo-thermal Conditions Temperature Reduction Measures Construc-tion Technique |
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