【摘要】：邊坡的穩(wěn)定性評價(jià)應(yīng)當(dāng)不僅僅局限于邊坡的初始失穩(wěn)破壞評價(jià),也應(yīng)該包括邊坡發(fā)生破壞后坡體形態(tài)的發(fā)展以及最終的平衡狀態(tài)評價(jià),因?yàn)樗鼘τ诿枋龌略斐傻奈：Ω鼮橹庇^。鑒于此,結(jié)合物質(zhì)點(diǎn)方法開發(fā)過程中的一些最新進(jìn)展進(jìn)行簡要介紹,包括隱式物質(zhì)點(diǎn)方法、隨機(jī)物質(zhì)點(diǎn)方法以及考慮流 固全耦合的物質(zhì)點(diǎn)方法,同時(shí)對其在不同工況下的邊坡穩(wěn)定性評價(jià)進(jìn)行了應(yīng)用與探討,揭露了邊坡相應(yīng)工況下不同的破壞機(jī)制和模式,包括降雨引起的淺層破壞、斜長邊坡的平動(dòng)破壞以及黏土體常見的向上漸進(jìn)式轉(zhuǎn)動(dòng)破壞等。研究結(jié)果表明,該方法可以穩(wěn)定、高效地評價(jià)邊坡的初始破壞以及誘發(fā)的眾多次生破壞,直觀深入地描述邊坡的破壞機(jī)制以及評估破壞帶來的風(fēng)險(xiǎn)。
[Abstract]:The evaluation of slope stability should not only be limited to the initial failure evaluation of slope, but also include the development of slope body shape after slope failure and the final equilibrium state evaluation. Because it is more intuitive to describe the hazards caused by landslides. In view of this, some recent developments in the development of the material point method are briefly introduced, including implicit material point method, stochastic material point method and material point method considering the full coupling of fluid and solid. At the same time, the application and discussion of slope stability evaluation under different working conditions are carried out, and the different failure mechanisms and modes of slope under corresponding working conditions are revealed, including shallow failure caused by rainfall. The translational failure of slanting slope and the common upward progressive rotational failure of clay. The results show that this method can be used to evaluate the initial failure and the induced secondary damage of the slope stably and efficiently. The failure mechanism of the slope can be described intuitively and the risk caused by the failure can be evaluated.
【作者單位】： 中國科學(xué)院武漢巖土力學(xué)研究所巖土力學(xué)與工程國家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家自然科學(xué)基金創(chuàng)新群體資助項(xiàng)目(51621006) 中國科學(xué)院率先行動(dòng)“百人計(jì)劃”項(xiàng)目~~
【分類號】：TU43
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本文編號：2281634