粉砂質(zhì)板巖各向異性特性研究
發(fā)布時(shí)間:2018-06-07 15:01
本文選題:粉砂質(zhì)板巖 + 物理力學(xué)特性 ; 參考:《地下空間與工程學(xué)報(bào)》2017年S2期
【摘要】:在水電工程中,地質(zhì)條件對(duì)工程設(shè)計(jì)方案的選擇和建設(shè)的順利實(shí)施具有至關(guān)重要的影響,巖性條件的好壞對(duì)于巖體承載能力大小、支護(hù)設(shè)計(jì)形式和加固強(qiáng)度選擇等更是起到?jīng)Q定性作用。以某水電站的淺變質(zhì)粉砂質(zhì)板巖為主要研究對(duì)象,在其礦物成分分析的基礎(chǔ)上,進(jìn)行巖石物理力學(xué)性質(zhì)試驗(yàn)、巖石中剪試驗(yàn)、巖體變形試驗(yàn)、巖體變形試驗(yàn)配套聲測(cè)等各項(xiàng)物理力學(xué)試驗(yàn),通過試驗(yàn)數(shù)據(jù)可知粉砂質(zhì)板巖垂直板理和平行板理方向具有明顯的各向異性的物理力學(xué)特征。本文針對(duì)粉砂質(zhì)板巖該特性,分析其間的相關(guān)性,將該區(qū)域巖體特征更好的利用,以服務(wù)于工程建設(shè)。對(duì)于類似巖性條件的各類工程具有很好的實(shí)際參考意義。
[Abstract]:In hydropower projects, geological conditions have a vital impact on the selection of engineering design schemes and the smooth implementation of construction, and the lithologic conditions are of great importance to the bearing capacity of rock mass. Support design form and reinforcement strength selection play a decisive role. Taking the shallow metamorphic silty slate of a hydropower station as the main research object, on the basis of the analysis of its mineral composition, the physical and mechanical properties of rock, the shear test in rock, the deformation test of rock mass are carried out. The physical and mechanical tests such as acoustic measurement of rock mass deformation test show that the vertical slate of silty slate has obvious anisotropic physical and mechanical characteristics in the direction of vertical slate and the direction of the slate. According to the characteristics of silty slate, this paper analyzes the correlation between them, and makes better use of the characteristics of rock mass in this area to serve the engineering construction. For similar lithologic conditions of various types of engineering has a good practical reference significance.
【作者單位】: 中國(guó)電建集團(tuán)成都勘測(cè)設(shè)計(jì)研究院有限公司;
【分類號(hào)】:TV223
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本文編號(hào):1991597
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