过去潼关水文站自制的管式河床质采样器,因杆子只有4～5 米,只适用于水深4米左右的垂线。其它像锥式采样器,因流速大,河床硬也不能使用。一九六四年制成了一种适用于深水、流急、硬沙质河床的河床质采样器。经过试用,性能良好,现将它的结构和 In the past, Tongguan Hydrological Station self-made tubular riverbed sampler, because the pole is only 4 to 5 meters, only applicable to the vertical depth of about 4 meters. Like other cone-type sampler, due to the large flow rate, the bed can not be hard to use. In 1964, a riverbed sampler suitable for deep-water, run-of-the-mill and hard sandy river beds was made. After trial, good performance, now its structure and