山西建筑
山西建築
산서건축
SHANXI ARCHITECTURE
2014年
17期
196-197,198
,共3页
引水隧洞%超高地热%钻爆开挖%炮孔冷却系统
引水隧洞%超高地熱%鑽爆開挖%砲孔冷卻繫統
인수수동%초고지열%찬폭개알%포공냉각계통
diversion tunnel%ultra-high geothermal%blasting excavation%blasting hole cooling system
在娘拥水电站引水隧洞爆破后岩体表面温度高达75℃,炮孔涌水温度高达86℃的工况下,分析了超高地热对钻爆开挖施工的影响,研究建立了超高地热条件下炮孔冷却循环系统,有效地将炮孔温度降至35℃以下,为超高地热段隧洞的正常建设创造了有利条件。
在孃擁水電站引水隧洞爆破後巖體錶麵溫度高達75℃,砲孔湧水溫度高達86℃的工況下,分析瞭超高地熱對鑽爆開挖施工的影響,研究建立瞭超高地熱條件下砲孔冷卻循環繫統,有效地將砲孔溫度降至35℃以下,為超高地熱段隧洞的正常建設創造瞭有利條件。
재낭옹수전참인수수동폭파후암체표면온도고체75℃,포공용수온도고체86℃적공황하,분석료초고지열대찬폭개알시공적영향,연구건립료초고지열조건하포공냉각순배계통,유효지장포공온도강지35℃이하,위초고지열단수동적정상건설창조료유리조건。
Under the working conditions of diversion tunnel of Niangyong Hydropower station with 75 ℃ of rock surface temperature and 86 ℃ of blasting hole water-bursting temperature,the paper analyzes the impact of ultra-high geothermal upon blasting excavation construction,establishes blasting hole cooling recycling system under ultra-high geothermal conditions,and effectively lowers the blasting hole temperature down to 35 ℃ , which has created beneficial conditions for normal tunnel construction at ultra-high geothermal section.