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黏性泥石流冲刷沟床,会导致建筑物构筑物基础失稳,从而毁坏工程设施。本文通过室内水槽试验探究黏性泥石流沟床冲刷深度规律。试验结果表明:黏性泥石流沟床冲刷深度主要受沟床坡度、泥石流容重以及沟床物质容重的影响;黏性泥石流冲刷沟床的深度与沟床坡度成正相关,与泥石流容重或沟床物质容重成负相关;沟床平均冲刷深度与沟床坡度成线性正比关系,与泥石流容重成线性反比关系,与沟床物质容重的自然对数成线性反比关系。最后,分析得到黏性泥石流沟床平均冲刷深度经验公式。
Viscous debris flow erosion ditch bed, will lead to structural instability of the building, thus destroying engineering facilities. In this paper, through the indoor tank test to explore viscous debris flow gutter bed depth rule. The results show that the depth of gully bed erosion is mainly influenced by the gully slope, debris flow weight and the material weight of gully bed. The depth of gully bed is proportional to the depth of gully bed, The linear relationship between the depth of ditch bed and the depth of ditches is linearly inversely proportional to the weight of debris flow and linear inversely proportional to the natural logarithm of bulk density of ditches. Finally, the empirical formula of average depth of scouring in gully debris flow gully is obtained.