Ecological rock-soil mechanics slope protection test device under simulated rainfall condition

Abstract

The invention discloses an ecological rock-soil mechanics slope protection test device under a simulated rainfall condition. The device comprises an experiment box, wherein a base plate is arranged inthe experiment box; an experiment plate is arranged above the base plate; the top of the experiment plate is connected with a connecting plate through a hinge; a cover plate is arranged at the top ofthe experiment box; the bottom parts of the two sides of the cover plate are connected with L-shaped blocks through telescopic rods; ventilation pipes are arranged between the two L-shaped blocks; circular plates are fixedly connected to the two ends of each ventilation pipe; the circular plate is movably connected with the L-shaped block; the top of the cover plate is fixedly connected with an air pump; the air pump is connected with the ventilation pipes through air pipes; a plurality of water flowing pipes are arranged between the two ventilation pipes; the bottom of each water flowing pipe is fixedly connected with a plurality of spray nozzles; the top of the cover plate is fixedly connected with a water pump; and the water pump is connected with the water flowing pipes through waterpipes. The device has the advantages that the rainfall and the wind power direction can be changed, and experimental data can be obtained more comprehensively.

Description

technical field [0001] The invention relates to the technical field of rock and soil engineering, in particular to an ecological rock and soil mechanics slope protection test device under simulated rainfall conditions. Background technique [0002] With the continuous development of society, the damage to the environment is also increasing in the process of development, resulting in a variety of environmental problems, one of which is soil erosion. Water and soil erosion is caused by the damage and loss of water and soil resources and land productivity. It will cause huge damage to the ecological environment, especially for slopes, which will reduce the stability of slopes, cause landslides, landslides, debris flows and other serious geological disasters, causing serious consequences. [0003] In order to reduce the danger of the slope and improve the stability of the slope, a variety of methods are used to protect the slope. Vegetation ecological slope protection is one of ...

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Problems solved by technology

[0004] Slope is one of the main reasons affecting soil erosion. Under certain conditions and conditions, the amount of soil erosion is proportional to the slope, and the effect of different plants on soil fixation is different. In addition, one of the causes of soil erosion on slopes One of the natural conditions is rainfall, and the resulting debris flow is extremely harmful. In order to obtain the soil-fixing effect of different plants and different slopes, slope protection tests are required. According to Chinese Patent No. CN 101216479 B, an ecological rock under simulated rainfall conditions The soil mechanical slope protection test solves the problems that the existing test system fails to realize the automatic adjustment of rainfall intensity, the stability analysis under different slope conditions, and the comparative analysis of the slope body being washed (or eroded) by rainfall under the condition of vegetation, However, under natural conditions, the wind force also has an impact on the slope. The strong wind will affect the stability of the slope plants, thereby affecting the soil-fixing effect of the slope plants. Therefore, the wind factor must also be considered in the experiment. The impact on plants is also different, and the damage caused to plants is also different. Therefore, it is necessary to consider the impact of winds in different directions and intensities on plant stability during the experiment.

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