水利水電專(zhuān)業(yè)外文翻譯--混凝土重力壩基礎(chǔ)流體力學(xué)行為分析-橋梁設(shè)計(jì)-全文預(yù)覽
【正文】 razil test location, but other values of in situ stresses could be estimated, ., for Ko, vertical joints would have larger permeabilities. Field permeability measurements obtained in Packer tests at a deep openpit mining project in granitic rock in Brazil are also plotted in for parison with the theoretical relationship. Values of joint spacing observed from borehole cores are in the range of a few meters, and thus a constant spacing of 5m was assumed in the putations. Values of aho in the range of 300–1000μm were used to determine the theoretical relationships of km=f (z), where z is the depth, and pare with field measurements. Measured permeability values in the two boreholes are relatively high at depths between 100 and 200m, probably denoting the presence of a sheared zone or a zone of more jointed rock. The measured rock permeabilities decrease steadily with an increase in depth, however, and their values correspond well with the theoretical trend of rock mass permeability estimated with the model. Typical hydraulic apertures of 400–500μm and joint stiffness following a hyperbolic relationship with NIK =10V mc and mcV = hoa seem to agree well with observed field behavior for these crystalline rock masses. jointed rock mass permeability relationship with depth. Although real Hydromechanical behavior of jointed rock masses is site specific and depends on geologic factors, which need to be taken into account, the proposed approach provides a framework to estimate rock mass permeability during design stages where information is not yet available. 。 ha Is the joint hydraulic aperture。 w? is the unit weight of the water。 雖然真正的流體力學(xué)節(jié)理巖體的行為是需要考慮具體的地點(diǎn)和地質(zhì)因素，該方法提供了一個(gè)框架，但在設(shè)計(jì)階段，其中巖石資料尚未提 供大規(guī)模滲透。阿霍的價(jià)值在 300 1000μ m范圍被用來(lái)確定公里 = f的理論關(guān)系（ z）的，其中 Z是深度，以實(shí)地測(cè)量和比較 這兩個(gè)鉆孔測(cè)量值相對(duì)滲透率在 100 至 200 米深處的高，可能表明的一個(gè)區(qū)或剪切節(jié)理巖帶更多的存在。覆蓋層講估計(jì)使用的是 kN/m3 單位重量。 [1] [3]。μ是水（ 310? p?s）的動(dòng)力粘度 。對(duì)于理想的平行板，以在整個(gè)關(guān)節(jié)面單流道， f= 中流道蜿蜒穿過(guò)關(guān)節(jié)面， f。 niK 和 mcV 的價(jià)值觀通過(guò)對(duì)實(shí)驗(yàn)數(shù)據(jù)的回歸分析來(lái)估計(jì)的。n? ,并聯(lián)合， nV? 在裝卸，重大的聯(lián)合封發(fā)生在低有效正應(yīng)力的地方。這些項(xiàng)目包括壓力管道，危險(xiǎn)廢物處置，以及對(duì)流動(dòng)行為的控制斷面沿巖石地質(zhì)遏制依賴(lài)的其他情形。（二）液壓。大約一個(gè)世紀(jì)前， Boozy大壩的失敗提示工程師開(kāi)始考慮由內(nèi)部產(chǎn)生滲漏大壩壩基系統(tǒng)的揚(yáng)壓力的影響，并探討如何盡量減少其影響。裂紋擴(kuò)展模式和相應(yīng)揚(yáng)壓力和抗滑安全系數(shù)的估計(jì)沿壩巖接口與數(shù)字高程模型進(jìn)行了比較得出，由目前在工程實(shí)踐中使用的簡(jiǎn)化程序。該方法包括通過(guò)水庫(kù)典型周期建立一個(gè)觀察大壩行為的數(shù)據(jù)庫(kù)，并用離散元法（ DEM）數(shù)值模式模擬該行為。本文列出評(píng)價(jià)建立在巖石節(jié)理上的混凝土重力壩流體力學(xué)行為的方法。目前大壩基礎(chǔ)內(nèi)的各種不同幾何的巖石的滑動(dòng)因素，是用德國(guó)馬克也評(píng)價(jià)模型與常規(guī)的分析方法的。 簡(jiǎn)介：評(píng)估抗滑混凝土重力壩的安全要求的理解是，巖基和他們上面的結(jié)構(gòu)是一個(gè)互動(dòng)的系統(tǒng)，其行為是通過(guò)具 體的材料和巖石基礎(chǔ)的力學(xué)性能和液壓控制。 圖 .1 流體力學(xué)行為：（一）機(jī)械 。在此基礎(chǔ)上比較了一系列的結(jié)論得出了基本孔隙壓力在節(jié)理巖體的影響可以考慮在其他工程項(xiàng)目，認(rèn)為那里的巖石節(jié)理流體力學(xué)行為應(yīng)予以考慮。 該水力行為的聯(lián)合可以表示為非線(xiàn)性應(yīng)用之
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