本文關(guān)鍵詞：復(fù)雜地基上重力壩的破壞過(guò)程及穩(wěn)定安全度研究　出處：《中國(guó)農(nóng)村水利水電》2016年02期 　論文類(lèi)型：期刊論文

  更多相關(guān)文章： 重力壩 三維地質(zhì)力學(xué)模型試驗(yàn) 破壞過(guò)程 超載法

【摘要】：復(fù)雜地基上重力壩的整體穩(wěn)定一直備受關(guān)注。為了對(duì)復(fù)雜地基上重力壩整體穩(wěn)定及破壞過(guò)程進(jìn)行研究,對(duì)某水電樞紐典型壩段進(jìn)行三維地質(zhì)力學(xué)模型試驗(yàn),采用超載法對(duì)該水電樞紐天然地基方案的典型壩段進(jìn)行破壞試驗(yàn)。得到壩基的破壞過(guò)程及變形變位特點(diǎn),并得出超載安全系數(shù)Kp=3.0。再結(jié)合有限元,采用綜合法進(jìn)行計(jì)算,所得綜合安全系數(shù)Kc=2.5。模型試驗(yàn)和計(jì)算所得大壩破壞失穩(wěn)過(guò)程相似,兩者進(jìn)行對(duì)照,相互驗(yàn)證確保工程穩(wěn)定分析成果的準(zhǔn)確性與可靠性,且研究成果可為類(lèi)似問(wèn)題中綜合法的使用提供借鑒和參考。
[Abstract]:The overall stability of gravity dam on complex foundation has attracted much attention. In order to study the overall stability of gravity dam on complex foundation and the failure process of the 3D geomechanical model test for typical dam of a hydropower project, by overloading method of the typical dam hydropower natural foundation scheme for destruction test. The deformation and displacement characteristics of the failure process of dam foundation get, and draw the overload safety factor Kp=3.0. combined with finite element method, calculated using the method of comprehensive, comprehensive safety coefficient of the Kc=2.5. model test and calculation of dam failure process are similar, both the control accuracy and reliability analysis, mutual verification results to ensure the stability of Engineering, and the research results can provide a reference for the comprehensive use similar problems.

【作者單位】： 四川大學(xué)水力學(xué)與山區(qū)河流開(kāi)發(fā)保護(hù)國(guó)家重點(diǎn)實(shí)驗(yàn)室水利水電學(xué)院;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51379139,51409179)
【分類(lèi)號(hào)】：TV642.3
【正文快照】： 重力壩作為出現(xiàn)最早的壩型,在世界已建大壩中占有著相當(dāng)大的比重。重力壩的穩(wěn)定問(wèn)題一直受到社會(huì)各界高度重視,尤其是在復(fù)雜地基條件下的整體穩(wěn)定問(wèn)題更是重中之重[1]。天然地基條件下的重力壩壩基經(jīng)常含有節(jié)理、破碎帶及軟弱夾層等,直接對(duì)大壩壩基的穩(wěn)定產(chǎn)生無(wú)法忽視的影響。

【相似文獻(xiàn)】

相關(guān)期刊論文 前1條

1 張亞芳,唐春安,梁正召,張娟霞;單顆粒增強(qiáng)復(fù)合材料破裂過(guò)程的數(shù)值模擬[J];廣州大學(xué)學(xué)報(bào)(自然科學(xué)版);2005年02期

，

本文編號(hào)：1390706