The extreme effects of sand mining on local deformation of riverbed and evolution of river stretch in typical river sections such as straight river section, river bend and river fork are experimentally studied in micro-scale loose bed hydraulic model.

• 摘要采用微尺度动床河工模型试验的方法研究了在顺直、弯道与分汊等典型河道不同部位进行大规模采砂对河床局部变形及对河段变形的极限影响。