本文選題：地應(yīng)力　切入點(diǎn)：測(cè)試　出處：《水力發(fā)電》2017年10期 　論文類(lèi)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(xiàn)隧洞段總長(zhǎng)約98 km,是國(guó)內(nèi)最長(zhǎng)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(fù)雜。采用水壓致裂法對(duì)現(xiàn)場(chǎng)地應(yīng)力測(cè)試,研究隧洞地應(yīng)力場(chǎng)特征,得到最大、最小水平主應(yīng)力量值和水平主應(yīng)力方向。結(jié)果表明,測(cè)試區(qū)域內(nèi)地應(yīng)力屬中低應(yīng)力水平,從地應(yīng)力角度分析,隧洞軸線(xiàn)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(zhǎng)春工程學(xué)院機(jī)電工程學(xué)院;吉林省水利水電勘測(cè)設(shè)計(jì)研究院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(51378075,51678065) 吉林省科學(xué)技術(shù)廳重點(diǎn)科技攻關(guān)項(xiàng)目(20160204020SF)
【分類(lèi)號(hào)】：TV221;TV674

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