alluvia

In this paper, the theories of elastic plastic mechanics and the finite deformation geometry are applied to study the question of surface displacement mechanism and displacement computation by mining below thick alluvia. It has an important guidance for controlling coal mining damage.

本文应用弹塑性力学理论及有限力学变形理论，研究了厚冲积层下开采地表移动的机理与移动量计算问题，对有效地控制地下开采损害具有重大指导作用。

Study on the Conditions of Strata Movement along Weak Planes and Its Direction in Alluvia

沿接触面滑动的条件及冲积层中移动传播方向

It is shown that the wave scattering by a layered canyon is essentially different with that by a simple canyon, and that the existence of the alluvia, even if very thin, can greatly reduce the barrier effect of the canyon.

结果表明，层状凹陷地形对平面SH波的散射和单一凹陷地形差别很大，凹陷地形表面松软沉积的存在，即使厚度很薄，也会大大降低凹陷地形本身对入射波的屏障作用；

Analysis of surface displacement by mining below thick alluvia

厚冲积层下开采地表移动分析

Surface movement influenced by mining below thick alluvia and thin bedrocks

厚冲积层薄基岩下采煤地表移动变形规律

Analytical solution of scattering of plane SH waves around a canyon with multi-layered alluvia

多层沉积凹陷地形对平面SH波散射问题的解析解