Evaporation-preventing double-ring infiltrometer easy to mount and fix

Abstract

The invention relates to an evaporation-preventing double-ring infiltrometer easy to mount and fix. The evaporation-preventing double-ring infiltrometer is composed of a water supply bottle, an inner ring, an outer ring, a fixing and connecting rod for connecting the inner ring and the outer ring, as well as a knocking cover board and an evaporation-preventing cover board which are mounted at the tops of the inner ring and the outer ring. All the components are independent, are convenient to carry, and are assembled after on-site tests. The inner ring and the outer ring are connected and fixed by the fixing and connecting rod, so that the integral rigidity of the inner ring and the outer ring is improved, and the bottoms of the double rings are prevented from entering soil to cause deflection. The knocking cover board is additionally arranged at the tops of the inner ring and the outer ring, when the inner ring and the outer ring are knocked, the inner ring and the outer ring stably enter the soil as a whole body, and can not warp up or incline. In addition, in the liquid permeation process, since the evaporation-preventing cover board is additionally mounted at the tops of the inner ring and the outer ring, so that great evaporation caused by weather is avoided. Therefore, the infiltration boundary conditions are strictly controlled while the infiltration capacity is accurately measured, so that the accurate infiltration rate of the soil is obtained, and the infiltration characteristics of the soil are mastered.

Description

technical field

[0001] The invention relates to an infiltration meter for measuring soil infiltration rate on site, in particular to an evaporation-proof double-ring infiltration meter which is easy to install and fix. Background technique

[0002] Infiltration refers to the process of rainfall, irrigation and other water entering the soil, and is an important link in the mutual transformation of rainfall, surface water and groundwater. Soil infiltration is closely related to soil erosion, surface runoff, farmland irrigation, and water-induced geological disasters. Therefore, it is very important to understand the infiltration performance of soil, especially the infiltration characteristics of soil on site. At present, the single-ring or double-ring infiltration method is mostly used to measure the soil infiltration rate on site. These test methods may have the following deficiencies during the test process:

[0003] 1. The horizontal diffusion of water in the infiltration...

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