A cylindrical scouring test equipment

Abstract

The invention discloses a cylindrical flushing test device, which comprises a base. A barrel is provided in the middle portion of the upper end of the base. The upper end of the barrel is provided with a transparent top cover. A bottom cover is provided at the lower end of the barrel. A cylinder is provided in the middle portion of the lower end of the bottom cover. The cylinder is provided in thebase, and the upper and lower sides of the outer wall of the cylinder are provided with a radial ball bearing. The outer side of the radial ball bearing is fixedly connected to the base. A thrust bearing is provided at the top end of the base. The thrust bearing is sleeved on the upper part of the outer side of the cylinder, and the outer side of the thrust bearing is sleeved with a toothed ring.The invention can measure the shear stress; can record the rotation speed, the torque of the cylinder and the change of the surface of the soil sample in real time; and can establish an erosion modelconsidering the physical and chemical properties of soil. The device provides basic data for dam break theory analysis and dam break calculation, so that the device can be widely applied in the fields of water conservancy, hydropower, disaster reduction, and disaster prevention.

Description

technical field [0001] The invention belongs to the technical field of soil erosion test equipment, and in particular relates to a cylindrical erosion test equipment. Background technique [0002] According to the Bulletin of the First National Water Conservancy Census, my country has a total of 98,002 reservoirs with a total storage capacity of 932.312 billion m3, including 756 large reservoirs, 3,938 medium-sized reservoirs, and 93,308 small reservoirs. The number of dams ranks first in the world. However, due to historical, economic and technical reasons, more than one-third of the reservoirs are dangerous reservoirs. From 1954 to 2013, 3,528 reservoir dams failed, causing major loss of life and property and ecological and environmental disasters. Although my country has carried out large-scale reinforcement of dangerous reservoirs since 2007, 20 reservoir dams still failed from 2010 to 2013. my country has nearly 13,000 tailings ponds of various types. Due to the compl...

AI Technical Summary

Problems solved by technology

However, the use of these equipment is limited by its complexity and site conditions, and it is necessary to develop new erosion test equipment or modify existing equipment to meet application requirements

Moreover, it is very difficult to directly measure the shear stress change during the dam failure process, and the original test equipment cannot carry out this research

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