發(fā)布時間：2018-04-30 13:47

  本文選題：東苗家滑坡 + 邊坡穩(wěn)定性分析��； 參考：《水力發(fā)電學(xué)報》2017年09期

【摘要】：利用Flac3D分析了小浪底水利樞紐東苗家滑坡的穩(wěn)定性,滑坡體在正常條件下整體處于穩(wěn)定狀態(tài),在暴雨工況下出現(xiàn)較大變形,可能誘發(fā)滑坡體破壞。基于17年的滑坡表觀和深部變形監(jiān)測數(shù)據(jù),分析了滑坡發(fā)展趨勢。在穩(wěn)定性分析和發(fā)展趨勢判別基礎(chǔ)上,布置了表觀及深部變形、滲壓、降雨等監(jiān)測項(xiàng)目,建立了物聯(lián)網(wǎng)自動化監(jiān)測方案和預(yù)警系統(tǒng)。提出了東苗家滑坡體的三級失穩(wěn)預(yù)警模式,分別確定了各級失穩(wěn)模式的降雨量、變形速率等指標(biāo)的預(yù)警閾值。
[Abstract]:The stability of Dongmiaojia landslide in Xiaolangdi Water Conservancy Project is analyzed by Flac3D. The landslide body is in a stable state under normal conditions and has a large deformation under the condition of heavy rain, which may induce landslide failure. Based on the 17-year landslide surface and deep deformation monitoring data, the development trend of landslide is analyzed. On the basis of stability analysis and development trend discrimination, monitoring items such as apparent and deep deformation, osmotic pressure and rainfall are arranged, and the automatic monitoring scheme and early warning system of the Internet of things are established. The three-stage instability warning model of Dongmiaojia landslide is put forward, and the early warning threshold of rainfall and deformation rate of each instability model is determined respectively.
【作者單位】： 華北水利水電大學(xué)巖土力學(xué)與水工結(jié)構(gòu)研究院;
【基金】：國家科技支撐計劃(2015BAB07B08) 國家水利公益性行業(yè)科研專項(xiàng)(201301034)
【分類號】：P642.22;TV223
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本文編號：1824793