The collected data on long-runout rockslides induced be large-scale underground blasts are presented. The critical conditions of the rockslides are determined as a function of the dynamic impact, rockfall volume, as well as the slope height and gradient. It is shown that the main condition for the mobile rockslides is their volume exceeding 106-108 m3. A collateral effect for rockslides in case of smaller volume of 106-107 m3 is the presence of an acceleration phase at the slope toe and the absence of a counter slope. The relations of the avalanche front range, rockslide volume and fall height are given. It is mentioned that the avalanche range is associated with their composition, in particular, rock-and-ice or rock-and-snow avalanches feature increased mobility starting from their volumes of 105 m3. A brief review of theoretical and modeling studies intended to explain the reduced friction in large avalanches is provided.

中文翻译：

---

大规模地下爆破下的山坡跌落与长跳动滑坡

收集到的由大规模地下爆破引发的长跳动滑坡数据。岩崩的临界条件是由动力冲击、落石量以及斜坡高度和坡度决定的。结果表明，流动性滑坡的主要条件是其体积超过106-108 m3。在 106-107 立方米的较小体积的情况下，对岩崩的附带影响是在坡脚处存在加速阶段而没有反坡。给出了雪崩前沿范围、滑坡体积和落差高度的关系。提到雪崩范围与其组成有关，特别是岩冰或岩雪雪崩的特征是从 105 立方米的体积开始增加了流动性。