农业机械学报2011，Vol.42Issue(11)：68-75,8.
EN-1对砒砂岩固化土坡面径流水动力学特征的影响
Effects of EN- 1 Soil Stabilizer on Slope Runoff Hydraulic Characteristics of Pisha Sandstone Stabilized Soil
摘要
Abstract
In order to study erosion rule of engineering slope runoff and provide scientific and theoretical basis for control of water and soil loss of slope in Pisha sandstone region, the hydrodynamic characteristics of slope runoff under the different EN - 1 soil stabilizer contents, curing ages and compaction degrees treated with soil stabilizer were studied by using indoor runoff scouring experiment. The results showed that flow velocity of slope runoff of Pisha sandstone stabilized soil increased with the increase of soil stabilizer contents, curing ages and compaction degrees under the soil stabilizer contents, curing ages and compaction degrees in this experiment and it had a fluctuant and decreased tendency with scouring time. The Reynolds number (Re) of slope runoff decreased with the increase of soil stabilizer contents, curing ages and compaction degrees and it had a fluctuant and increased tendency with scouring time. The Froude number (Fr) of slope flow runoff had the opposite trends. The flow regimes were turbulent flow and subcritical flow when scouring proceeded to the later period at smaller compaction degrees. The flow regimes were all laminar flow and supercritical flow at the other treatments. The Darcy - Weisbach drag coefficient (f) of slope runoff decreased with the increase of soil stabilizer contents, curing ages and compaction degrees, and had a positive correlation with sediment transport rate.关键词
砒砂岩/EN-1固化剂/坡面侵蚀/水动力学/冲刷试验Key words
Pisha sandstone/ EN - 1 soil stabilizer/ Slope erosion/ Hydrodynamics/ Scouring experiment分类
农业科技引用本文复制引用
苏涛,张兴昌..EN-1对砒砂岩固化土坡面径流水动力学特征的影响[J].农业机械学报,2011,42(11):68-75,8.基金项目
国家重点基础研究发展计划(973计划)资助项目(2007CB106803) （973计划）
