This kind of strata is distributed widely in the Quaternary overburden layer of mountain riverbeds and mountain sloping field.
这类地层广泛存在于山区河床，山前坡地等第四系覆盖层中。
The collapse of overburden layer and land surface due to underground mining is one kind of environmental hazards induced by human being.
采矿区覆岩及地表塌陷是涉及全球性人为环境灾害之一。
It is indicated that the characteristics of overburden layer, development degree of karst and activities of groundwater have important influence on the formation of karst collapse.
结果表明，覆盖层特征、岩溶发育程度、地下水等对岩溶塌陷的产生有着重要影响。
The increasing pore-water pressures caused by the change of water level in the overburden layer is the main reason of inducing many natural landslides in Sweden, Norwegian and Canada.
如瑞典、挪威和加拿大的天然滑坡，大都是由于覆盖层中地下水位的增加引起孔隙水压力增大而诱发的。
Comparison analysis for antiplane surface motion features between the circular-arc cross-section alluvial valley and the single overburden layer is investigated in details in this paper.
为了更深入地研究了一般圆弧状沉积盆地的出平面地表运动特征，本文与已有的软土单覆盖层解析结果做了对比分析。
During overburden stripping construction, we have successfully practiced excavation, graded stockpiling and comprehensive utilizing technology for soil layer, mud or muddy clay.
在该矿山覆盖层剥离施工中我们成功实践了土层或淤泥或淤泥质粘土挖运、分级堆放、综合利用技术。
In addition, the layer separation exists in the end of span of overburden if the subsidence happens in whole overburden, which is resulted from the shear failure of the bedding plane.
另外，当覆岩发生整体下沉时离层主要存在于跨度两端，离层由层理剪切破坏引起。
The key layer plays a main role in controlling the movement and deformation of overburden separate layer.
关键层对控制覆岩的移动变形起主要作用。
Quaternary overburden is completely developed with thick layer.
第四系松散堆积层发育完全，厚度大。
Quaternary overburden is completely developed with thick layer.
第四系松散堆积层发育完全，厚度大。
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