All avalanches are caused by an over-burden of material, typically snowpack, that is too massive and unstable for the slope that supports it.
所有雪崩都是由于物质的过渡负荷造成，通常是积雪堆积过厚，很不稳固，超出了山坡面的承载能力。
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Results Inducing factors were various and mainly changes of feelings and family, poverty, social adaptability, loving and marriage and over-burden work.
Determining the critical load, the amount of over-burden which is likely to cause an avalanche, is a complex task involving the evaluation of a number of factors.