A multifunctional experimental device and experimental method for simulating hydraulic elements of slope flow

Abstract

The invention discloses a multi-functional experimental device and an experimental method for simulating the hydraulic elements of slope flow. By adopting a detachably connected porous plate, the angle formed between the arrangement direction of the through holes and the longitudinal edge of the porous plate is adopted. Different classifications are available for selection; according to the reality of the slope of the watershed to be simulated, the building or structure model with several connecting columns at the bottom can be selectively used alone or in combination with each other, and different numbers and selections of plastic rods can be made. The combined use of different layout forms can be carried out permanently; when in use, the connecting columns and plastic rods of the simulation model are respectively inserted into the through holes to form a tight fit, so as to simulate the flow velocity and flow rate of surface runoff when simulating different slope surface conditions. , water depth and flow velocity field distribution, its structure is simple, the experimental process is easy to operate, and the experimental results are true and accurate. It is suitable for the numerical measurement of hydraulic elements of overland flow in modern watersheds and the analysis and research of their distribution characteristics.

Description

technical field [0001] The invention relates to an experimental device and an experimental method for simulating hydraulic elements of slope flow, in particular to a multifunctional experimental device and an experimental method for simulating hydraulic elements of slope flow, and belongs to the technical field of watershed hydrological process simulation. Background technique [0002] Due to the impact of human activities such as urbanization, agricultural cultivation, and grass planting, human disturbance has been caused to the slope of the watershed, which has a strong impact on the formation of slope flow and the process of confluence, and the response relationship between rainfall and slope runoff has become abnormal. , disastrous rainstorms and floods occur frequently, and often lead to hydrogeological disasters, which are the main characteristics of modern watersheds. [0003] At present, the torrential rain, flood disasters and hydrogeological disasters that occur ev...

AI Technical Summary

Problems solved by technology

[0007] In the existing various types of indoor water tank experiments, most of the simulation of slope conditions is to lay sand, stones, vegetation, etc. at the bottom of the tank. Although this experimental method can prove to a certain extent that different slope conditions have an impact on surface water flow, However, under the influence of human beings, the influence of regularly arranged farmland, turf, roads, etc. on the slope surface on the hydraulic elements of the slope cannot be simulated, because when the runoff flows from different directions on the regularly arranged modern watershed, its hydraulic elements will occur. However, there is currently no experimental device to study and simulate this, and when the experiment is carried out in the existing experimental tank, due to the scouring and carrying capacity of the water flow, some of the sand and stones laid on the bottom of the tank will be carried along with the erosion of the water flow out of the water tank, thus causing distortion and error in the simulation results

[0008] Therefore, in the current indoor simulation experiments, it is difficult to describe the change mechanism of the hydraulic elements of the slope flow in the modern watershed comprehensively and accurately through calculation or using text, and it is necessary to supplement the experimental model for relevant simulation experiments

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