论文部分内容阅读
通过开展小尺寸的室内模型试验,研究了在不同滑道坡度和滑道宽度下,滑坡-碎屑流的运动和堆积特性。试验结果发现:斜坡坡度增大时,对于细颗粒堆积体,其冲程和平面覆盖面积均变大;对于粗颗粒堆积体,其冲程和平面覆盖面积均先变大后变小;两者的堆积宽度均减小、堆积厚度均增加。滑道宽度对滑坡运动影响显著,滑道宽度增加时,其冲程出现小幅度的增加,而平面覆盖面积和堆积宽度均出现较大幅度的增加,堆积厚度则变小;滑道出口宽度对滑体最终堆积范围影响显著,而滑道入口宽度的影响则相对较小。试验研究成果为滑坡-碎屑流堆积范围及堆积形态影响因素的探究提供了一定的理论参考价值。
By carrying out small-scale indoor model tests, the movement and accumulation characteristics of landslide-debris flow under different chute slope and chute width are studied. The test results show that the stroke and plane coverage of fine grained bodies increase with the increase of slope gradient. For the coarse grained bodies, the stroke and plane coverage area first increases and then decreases. The accumulation of the two Width decreases, the accumulation of thickness increases. The width of the chute has a significant effect on the landslide movement. When the width of the chute is increased, the stroke of the chute increases slightly while the coverage area and accumulation width of the chute increase more and the stacking thickness becomes smaller. The final deposit area has a significant effect, while the width of the chute entrance has a relatively small effect. The experimental research results provide some theoretical reference value for the exploration of the landslide-debris flow accumulation area and the accumulation factors.