拉西瓦水電站地下廠房頂拱開挖及支護(hù)情況綜述(已修改)
2025-06-29 05:02 本頁面
【正文】 拉西瓦水電站地下廠房開挖分層及頂拱的開挖支護(hù)白 帆，賀鈺釧，王曉輝（黃河水電公司拉西瓦建設(shè)分公司，青海 貴德 811700）關(guān)鍵詞：地下廠房；開挖分層；頂拱開挖支護(hù)；拉西瓦水電站 摘 要： 拉西瓦水電站地下廠房位于高地應(yīng)力區(qū)，廠區(qū)最大主應(yīng)力達(dá)20MPa～30MPa。為確保施工期、運(yùn)行期的安全及開挖質(zhì)量，經(jīng)對圍巖彈性釋放能和能量釋放率的計(jì)算分析，綜合考慮其它因素，合理確定了地下廠房的開挖分層，并對廠房頂拱采取有效的開挖方法及支護(hù)措施。觀測數(shù)據(jù)證明，廠房開挖支護(hù)完成后頂拱圍巖已趨于穩(wěn)定。Delamination Excavation of Underground Powerhouse and Excavation ＆ Support of the Cavern’s Arch Crown for Laxiwa Hydropower StationBai Fan,He Yuchuan,Wang Xiaohui(Yellow River Hydropower Co. Laxiwa Construction Branch, Guide Qinghai 811700)Key Word: underground powerhouse。 delamination excavation。 excavation and support。 Laxiwa Hydropower StationAbstract:The underground powerhouse excavation group of Laxiwa Hydropower Station is buried in high geostress area where the highest principal stress reaches from 20MPa to order to make sure the security during the construction and function period and sure excavation quality, based on results of pution and analysis to elastic release energy and energy liberation rate of surrounding rock mass and overall consideration of vario
化學(xué)相關(guān)推薦
鄂ICP備17016276號-1