Device for batch experiment of soil body rainwater infiltration characteristics and use method thereof

Abstract

The invention discloses a device for batch experiment of soil body rainwater infiltration characteristics and a use method thereof. The device is divided into two parts, wherein the first part is a soil body infiltration characteristic measuring device which comprises a soil body infiltration characteristic model box, a slope runoff measuring box and a bottom surface seepage flow measuring box; and the second part is a rainfall device which comprises a rainfall system, a self-circulating water supply system, a supporting system, a real-time observing system, an operating platform and a movable soil body infiltration characteristic model bearing device. The device disclosed by the invention not only can recycle rainwater and monitor a spatial distribution rule of rainwater infiltration in a visual manner, but also can monitor the content of moisture in a soil body, the pressure of pore water and the change in soil pressure in the rainfall process in real time; as a plurality of soil body infiltration characteristic model boxes of the same experiment batch can be arranged on the operating platform, a rainwater infiltration characteristic experiment on soil bodies with different slopes, compaction degrees, initial moisture contents and stone contents under the condition of different rainfall intensities and rainfall durations can be developed in batch in a short term, so that the experiment efficiency and reliability are greatly improved.

Description

technical field [0001] The invention relates to the field of experimental devices for rainwater infiltration characteristics, in particular to a batch experiment device for soil rainwater infiltration characteristics and a method for using the same. Background technique [0002] In recent years, with the large-scale construction of highways, high-speed railways, and dams in my country, the problem of rainwater infiltration in roadbeds, slopes, dams, and retaining walls has become increasingly prominent, especially in some Special rock and soil bodies (such as red sandstone, soft rock, expansive rock) will disintegrate when exposed to rainwater. In order to protect the engineering construction site, people often use rainfall devices to simulate natural rainfall with different rainfall intensities in the laboratory, and carry out soil rainwater infiltration experiments under rainfall environments, so as to find out the safety hazards existing in the construction process of engi...

AI Technical Summary

Problems solved by technology

[0004] However, at present, relevant experimental devices at home and abroad are difficult to realize self-recycling of rainwater, visually observe the spatial distribution of rainwater infiltration depth, and record the development law of rainwater infiltration depth with time in real time, and it is impossible to carry out batches of different slopes and compaction in a short period of time. Experiments on rainwater infiltration characteristics of soils with different degrees of humidity, initial water content, and rock content under different rainfall intensities and durations, and the efficiency of the experiments needs to be improved urgently

Images