本文選題：地應力　切入點：測試　出處：《水力發(fā)電》2017年10期 　論文類型：期刊論文

【摘要】：引松供水工程是吉林省規(guī)模最大的水利供水工程,輸水總干線隧洞段總長約98 km,是國內(nèi)最長的有壓引水隧洞之一,隧洞跨越不同巖性,地層較多,地質(zhì)條件復雜。采用水壓致裂法對現(xiàn)場地應力測試,研究隧洞地應力場特征,得到最大、最小水平主應力量值和水平主應力方向。結果表明,測試區(qū)域內(nèi)地應力屬中低應力水平,從地應力角度分析,隧洞軸線選擇方向?qū)鷰r穩(wěn)定較為有利。
[Abstract]:The diversion water supply project is the largest water conservancy water supply project in Jilin Province. The total length of the tunnel section of the main main line of water conveyance is about 98 km, which is one of the longest pressure diversion tunnels in China. The tunnel spans different lithology and has more strata. The geological conditions are complicated. The field stress field characteristics of the tunnel are studied by hydraulic fracturing method, and the maximum and minimum horizontal principal stress values and horizontal principal stress directions are obtained. The in-situ stress in the test area is of medium and low stress level. From the point of view of in-situ stress, the selection direction of tunnel axis is more favorable to the stability of surrounding rock.
【作者單位】： 長春工程學院機電工程學院;吉林省水利水電勘測設計研究院;
【基金】：國家自然科學基金項目(51378075,51678065) 吉林省科學技術廳重點科技攻關項目(20160204020SF)
【分類號】：TV221;TV674

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