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Soil wind-erosion testing system and evaluation method thereof

A testing system and soil technology, applied in the field of soil engineering, can solve the problems of error in test results, great influence of test results, and inability to realize the evaluation of small differences in soil sample wind erosion, so as to reduce workload, avoid errors, and quickly and effective evaluation methods

Inactive Publication Date: 2014-11-26
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But there are still the following obvious deficiencies: one is that the device has no weight measuring device during the test process, so it cannot measure the amount of wind erosion in real time, which causes large errors to the test results; the other is that it does not consider the impact of environmental factors such as dry-wet cycle and sunshine on the soil. The impact of wind erosion on the samples made it impossible to obtain the comparison results of the anti-wind erosion effects of the improved soil samples under different conditions; third, the test process was open, and the external environment had a great influence on the test results, so it was impossible to evaluate the small difference in the amount of wind erosion of the soil samples

Method used

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  • Soil wind-erosion testing system and evaluation method thereof

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Embodiment 1

[0022] Example 1. Taking the test soil sample size 3kg as an example, the design parameters and requirements of the main components of a kind of soil wind erosion testing system proposed by the present invention are:

[0023]The desktop electronic scale (1) that the present invention adopts is the automatic collection desktop electronic scale of measuring range 10kg, precision 0.01g; The bottom surface side length of soil sample dish (2) is 45cm, and the side height is the square body of 10cm, and soil sample dish (2) ) is made of transparent glass; the support (3) is welded by a stainless steel solid rod with a diameter of Φ40mm, the bottom of the support (3) is provided with a support base (4), and the shape of the support (3) is a cuboid; the fan ( 5) The number is 4, and each fan (5) adopts an axial flow fan with an air guide port, and the diameter of the fan is Φ10cm; the number of the lamp tubes (8) is 4, and each lamp tube (8) adopts The incandescent lamp tube of 100W ...

Embodiment 2

[0024] Example 2. Taking the 2kg of test soil sample size as example, the design parameters and requirements of the main components of a kind of soil body wind erosion testing system proposed by the present invention are:

[0025] The bottom surface side length of the soil sample dish (2) that the present invention adopts is 40cm, and the side height is the square body of 5cm; The quantity of fan (5) is 3, and each fan (5) adopts the axial flow fan that is provided with air guide port , The diameter of the fan is Φ10cm; the number of the lamp tubes (8) is 3, and each lamp tube (8) adopts an incandescent lamp tube with a power of 100W. Other components used in embodiment 2 of the present invention are the same as in embodiment 1.

Embodiment 3

[0026] Example 3. Taking the test soil sample size 5kg as an example, the design parameters and requirements of the main components of a kind of soil body wind erosion testing system proposed by the present invention are:

[0027] The bottom surface side length of the soil sample dish (2) that the present invention adopts is 50cm, and the side height is a square body of 15cm; The quantity of fan (5) is 5, and each fan (5) adopts the axial flow fan that is provided with air guide port , the diameter of the fan is Φ10cm; the number of the lamp tubes (8) is 6, and each lamp tube (8) adopts an incandescent lamp tube with a power of 100W. Other components adopted in embodiment 3 of the present invention are the same as in embodiment 1.

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Abstract

The invention relates to a soil wind-erosion testing system and an evaluation method thereof. The testing system comprises a desk type electronic scale, a wind erosion device, an illumination device and a simulated rainfall device. The wind erosion device consists of a soil sample plate, a support, a support pedestal, a fan, a wind erosion object recoverer, and a moveable windshield. The illumination device includes a lamp tube, a temperature sensor, and a temperature controller. And the simulated rainfall device includes a rainfall sprayer, a water pipe, a rainfall controller, and a water pump. The evaluation method includes the following steps of testing system assembling, testing soil sample placing, first-time testing experiment making, influencing condition implementation, wind erosion performance evaluation, and testing system cleaning. According to the invention, precision of soil wind-erosion performance testing is high; assembling is convenient and operation is simple and reliable; and the anti-wind erosion performance of the soil can be evaluated rapidly and effectively.

Description

technical field [0001] The invention belongs to the technical field of soil engineering, in particular to a soil wind erosion testing device and an evaluation method thereof. Background technique [0002] With global climate change and the increasing impact of human activities on the surface, especially the large-scale construction of cities, mining, etc., ecological environmental problems such as sandstorms and dust have seriously affected people's lives and restricted social and economic development. develop. In recent years, how to adopt effective dust control and sand fixation methods to solve the problem has become the focus of research at home and abroad. In dust control and sand fixation projects, wind erosion resistance is the most important consideration. Therefore, before a dust control and sand fixation method is widely used, it is essential to test and evaluate the wind erosion resistance of the treated soil. work. [0003] In the indoor research of soil wind ...

Claims

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Application Information

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IPC IPC(8): G01M9/00
Inventor 刘瑾祁长青张发明魏继红张达薛天祥
Owner HOHAI UNIV
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