Contact scour hydraulic model

Abstract

The invention relates to a hydraulic model, in particular to a hydraulic model simulating the contact scour rule of an earth-rock combination part, and belongs to the field of water conservancy. The international patent classification (IPC) number of the hydraulic model is E02B 1/02. According to the hydraulic model, an adopted contact scour tester comprises a box body, a base, an upper edge and a top cover, a movable top cover is arranged in the middle of the top cover, the box body is made of transparent organic glass square tubes with the cross section being rectangular, the portion, located in the box body, of the base is provided with a rectangular groove, and a water pervious steel plate is arranged on the upper portion of the groove. Due to the experimental method, contact scour tests under different conditions can be performed, operation is convenient and easy to perform, work efficiency is remarkably improved, investment is small, and the hydraulic model is simple and easy to use. The box body is made of transparent organic glass, and various phenomena in the experimental process can be conveniently observed.

Description

Technical field: [0001] The invention relates to a hydraulic model, in particular to a hydraulic model for simulating the law of soil-rock joint contact scour. The IPC international patent classification number of the model is E02B 1 / 02, which belongs to the field of water conservancy. Background technique: [0002] The soil-rock junction between buildings passing through the embankment and the embankment is the weak link of the embankment. It is known as "one culvert, one dangerous construction". Seepage damage occurs due to other defects. The more dangerous type of seepage damage is the contact erosion damage on the contact surface between the building and the embankment, such as along the foundation soil or the contact surface between the top fill and the building, at high water level, for a long time Under the action of immersion, firstly, the particles at the contact part are carried out from the seepage outlet, and then form seepage channels, causing the embankment to ...

AI Technical Summary

Problems solved by technology

[0003] However, the current conventional permeability test can only measure the permeability coefficient of soil, and there is no relevant test instrument for the test of contact erosion, a type of seepage damage. If a conventional seepage device is used, the following problems will arise:

However, it is more difficult to carry out the field test of contact scour between soil a

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