Improved standpipe testing device

The utility model discloses an improved standpipe testing device, comprising an outer pipe which is formed by vertically connecting a cylindrical pipe and a conical pipe, the surface of the cylindrical pipe is provided with water passing holes, and the inner wall of the cylindrical pipe is provided with a plastic film; and the inner pipe is arranged in the cylindrical pipe, and a filter screen is arranged at the lower end of the inner pipe. The device can be conveniently inserted into sediments, disturbance to the original sedimentary environment can be reduced as much as possible in the test process, and the test precision is high. 本实用新型公开了改进的竖管试验装置，包括：外管，其由圆柱管和锥形管上下连接而成，所述圆柱管表面布设有过水孔，所述圆柱管内壁贴设有塑料薄膜；内管，其设置在所述圆柱管内部，所述内管下端设置有过滤网。本实用新型方便插入沉积物，试验过程能尽可能减少对原始沉积环境的扰动，试验精度高。