人民黄河
人民黃河
인민황하
Yellow River
2015年
4期
109-111
,共3页
饶晨曦%胡斌%刘飞%张腾%谭钦文
饒晨晞%鬍斌%劉飛%張騰%譚欽文
요신희%호빈%류비%장등%담흠문
裂隙岩体%稳定性分析%渗流%离散元
裂隙巖體%穩定性分析%滲流%離散元
렬극암체%은정성분석%삼류%리산원
fractured rock masses%stability analysis%seepage%Distinct Element Method
利用离散元软件UDEC分析了不同水位下裂隙岩体边坡内的渗流情况及岩体边坡稳定性。结果表明,水头越高,渗流对边坡的影响范围和影响程度越大,在15 m水头时,边坡产生较大变形且发生失稳破坏。借助对边坡关键点的变形历时曲线和渗流计算结果,研究了边坡在渗流情况下的破坏模式:边坡整体产生沿坡脚处所在结构面的剪切滑动,边坡后缘处所在的结构面产生拉裂破坏,坡面中部岩块有向临空面坍塌的趋势。
利用離散元軟件UDEC分析瞭不同水位下裂隙巖體邊坡內的滲流情況及巖體邊坡穩定性。結果錶明,水頭越高,滲流對邊坡的影響範圍和影響程度越大,在15 m水頭時,邊坡產生較大變形且髮生失穩破壞。藉助對邊坡關鍵點的變形歷時麯線和滲流計算結果,研究瞭邊坡在滲流情況下的破壞模式:邊坡整體產生沿坡腳處所在結構麵的剪切滑動,邊坡後緣處所在的結構麵產生拉裂破壞,坡麵中部巖塊有嚮臨空麵坍塌的趨勢。
이용리산원연건UDEC분석료불동수위하렬극암체변파내적삼류정황급암체변파은정성。결과표명,수두월고,삼류대변파적영향범위화영향정도월대,재15 m수두시,변파산생교대변형차발생실은파배。차조대변파관건점적변형력시곡선화삼류계산결과,연구료변파재삼류정황하적파배모식:변파정체산생연파각처소재결구면적전절활동,변파후연처소재적결구면산생랍렬파배,파면중부암괴유향림공면담탑적추세。
Rock slope stability of rock mass slope considering seepage in different water levels was analyzed by using discrete element soft-ware UDEC. The results show that with higher water level,the scope and degree of seepage on the slope will be larger and higher. When wa-ter head is 15 m,slope leads to large deformation and destabilization. With the help of key points deformation duration curve of the slope and calculation results,seepage failure mode of slope in the case was studied:the shear sliding generated along the structure face at the toe of the slope,the structure surfaces at the trailing edge of slope produced tensile failure and the middle part of slope rock had collapsed trend toward the free surface.