论文标题
剪切压缩损伤模型的快速算法，用于模拟块洞的模拟
A fast algorithm of the shear-compression damage model for the simulation of block caving
论文作者
论文摘要
对于地下矿山，当前用于矿石提取的通常技术是块洞穴，它在矿山中产生和诱导地震活动。了解地下采矿中最具挑战性的问题之一。这种方法依赖于重力来破坏和运输大量的矿石和废物。损坏模型中的最先进的状态无法代表岩石质量中采矿的实际影响，例如，损坏出现在所考虑的域底部，因此无法恢复该矿场中的沉降。在本文中，我们介绍了应用于提出的地下采矿的剪切压缩损伤模型的分析和实施（Bonnetier等，2020）。我们提出了一种基于梯度损伤模型中通常的交替算法的快速算法（Marigo等人，2016年），并表明该新算法比通常的算法要快。我们在3D中显示了一些数值测试，并为产生现实损害行为的不同损害定律提供了感兴趣的模拟。
For underground mine, the current usual technique for ore extraction is block caving, which generates and induces seismic activity in the mine. To understand block caving method is one of the most challenging problems in underground mining. This method relies on gravity to break and transport large amounts of ore and waste. The state of art in damage models is not able to represent the real effect of the mining in the rock mass since for example the damage appears in the bottom of the domain under consideration and with this is not possible recover the subsidence sees in the mine. In this paper we present the analysis and implementation of the shear-compression damage model applied to underground mining proposed in (Bonnetier et al. 2020). We propose a fast algorithm based in the usual alternated algorithm used in gradient damage models (Marigo et al. 2016) and show that this new algorithm is faster than the usual algorithm. We show some numerical tests in 3D and present interested simulations for different damage laws producing realistic damage behavior.
