西北水电
西北水電
서북수전
NORTHWEST WATER POWER
2013年
4期
40-42
,共3页
交通洞%设计%锚喷支护%通风%抽水蓄能电站
交通洞%設計%錨噴支護%通風%抽水蓄能電站
교통동%설계%묘분지호%통풍%추수축능전참
access tunnel%design%support with shotcrete application%ventilation%pumped-storage power plant
西龙池抽水蓄能电站施工运碴交通洞虽不是大断面隧洞,但设计采用了锚喷支护,局部围岩较差段加设钢支撑或花拱架,在开挖大跨度隧洞及其交岔口段采用预应力树脂锚杆和喷锚网钢拱架肋拱技术成功地解决了不良地质条件下的围岩稳定问题,同时巧妙布置,利用气温差自然通风替代机械通风,大大节省了运行成本。其施工简便、快速、结构简单,对工期紧张、使用条件相对较低的前期工程非常适合。
西龍池抽水蓄能電站施工運碴交通洞雖不是大斷麵隧洞,但設計採用瞭錨噴支護,跼部圍巖較差段加設鋼支撐或花拱架,在開挖大跨度隧洞及其交岔口段採用預應力樹脂錨桿和噴錨網鋼拱架肋拱技術成功地解決瞭不良地質條件下的圍巖穩定問題,同時巧妙佈置,利用氣溫差自然通風替代機械通風,大大節省瞭運行成本。其施工簡便、快速、結構簡單,對工期緊張、使用條件相對較低的前期工程非常適閤。
서룡지추수축능전참시공운사교통동수불시대단면수동,단설계채용료묘분지호,국부위암교차단가설강지탱혹화공가,재개알대과도수동급기교차구단채용예응력수지묘간화분묘망강공가륵공기술성공지해결료불량지질조건하적위암은정문제,동시교묘포치,이용기온차자연통풍체대궤계통풍,대대절성료운행성본。기시공간편、쾌속、결구간단,대공기긴장、사용조건상대교저적전기공정비상괄합。
The access tunnel of Xilongchi Pumped Storage Power Plant is not the one with a big section.But support with shotcrete appli-cation is designed.Steel supports or steel arch supports are arranged locally where the surrounding rock is weaker.The prestressed resin rock bolts and the steel arch support with wire mesh&shotcrete application are applied where the large-span tunnel and intersection are excavated, successfully handling with the stability of the surrounding rock in the unfavorable geological condition.Simultaneously, through the elegant arrangement , the natural ventilation caused by the temperature difference is applied instead of application of the me-chanical ventilation.The operation cost is decreased accordingly.The above-mentioned methods are very applicable to the pre-construc-tion works with short construction period and lower requirement on application because of their convenience , rapidness and simple struc-ture in construction .