08水利專業(yè)混凝土重力壩畢業(yè)論文中英文資料外文翻譯文獻(xiàn)-全文預(yù)覽
【正文】 formations at the Brazil 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，該方法提供了一個框架，但在設(shè)計階段，其中巖石資料尚未提供大規(guī)模滲透。阿霍的價值在 300 1000μ m范圍被用來確定公里 = f的理論關(guān)系（ z）的，其中 Z是深度，以實(shí)地測量和比較 這兩個鉆孔測量值相對滲透率在 100 至 200 米深處的高，可能表明的一個區(qū)或剪切節(jié)理巖帶更多的存在。覆蓋層講估計使用的是 kN/m3 單位重量。 [1] [3]。μ是水（ 310? p?s）的動力粘度 。對于理想的平行板，以在整個關(guān)節(jié)面單流道， f= 中流 道蜿蜒穿過關(guān)節(jié)面， f。 niK 和 mcV 的價值觀通過對實(shí)驗(yàn)數(shù)據(jù)的回歸分析來估計的。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。這些項目包括壓力管道，危險廢物處置，以及對流動行為的控制斷面沿巖石地質(zhì)遏制依賴的其他情形。（二）液壓。大約一個世紀(jì)前， Boozy大壩的失敗提示工程師開始考慮由內(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)踐中使用的簡化程序。該方法包括通過水庫典型周期建立一個觀察大壩行為的數(shù)據(jù)庫，并用離散元法（ DEM）數(shù)值模式模擬該行為。本文列出評價建立在巖石節(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因素，是用德國馬克也評價模型與常規(guī)的分析方法的。 簡介：評估抗滑混凝土 重力壩的安全要求的理解是，巖基和他們上面的結(jié)構(gòu)是一個互動的系統(tǒng)，其行為是通過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
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