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Simulation test device and test method for grassed swales

A technology of simulation experiment and simulation experiment, which is applied in the direction of water testing, soil material testing, material inspection, etc., can solve the problems of no devices and methods, and achieve the effect of saving water

Inactive Publication Date: 2010-12-15
TIANJIN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, although the artificial simulation experimental device and method is one of the main methods for regulating the pollution mechanism of rainwater surface runoff and the effect of rainwater utilization in Zhicaogou, there is no specific device and method for its implementation.

Method used

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  • Simulation test device and test method for grassed swales
  • Simulation test device and test method for grassed swales

Examples

Experimental program
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Embodiment

[0025] The runoff in the grass-planting ditch simulation test device of the present invention flows through the device, wherein the basic dimensions of the V-shaped long groove 19 are: (width × length × height) 0.75m × 10m × 0.65m, the angle between the two sides of the V-shaped long groove is 60°, and its longitudinal slope, that is, the slope between its longitudinal direction and the horizontal direction is 2%. The V-shaped long groove is made of two iron plates, and the iron plates on the two sides are connected by loose leaves to form the V-shaped long groove. The soil filled in the V-shaped long groove is loamy clay, and the surface treatment layer 9 on the soil surface is a grass planting layer, and the grass planting layer is composed of planted bluegrass + tall fescue. The plurality of soil moisture sensors 12 disposed in the soil are five ML2x soil moisture sensors made in England, and the five soil moisture sensors are disposed along the longitudinal direction of th...

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Abstract

The invention discloses a simulation test device and a test method for grassed swales. The device comprises a runoff generating device, a runoff flowing device, a runoff collecting device and a monitoring device, wherein the runoff flowing device comprises a V-shaped slot and an angle adjusting structure for adjusting included angles between the longitudinal slope of the V-shaped slot and the twoside faces of the V-shaped slot; the two side faces of the V-shaped slot are provided with a plurality of sampling holes; the bottom of the V-shaped slot is provided with a supporting structure; the V-shaped slot is filled with soil; and the surface of the soil is provided with a surface treatment layer. Testing water with different contaminant concentrations is prepared and different hydraulic loads and flow rates are set according to the purposes of the tests; and the influence of different earth surface measures on the utilization efficiency of the grassed swales and the runoff contaminantregulation can be known from the observation of soil moisture and the monitoring of surface water quality and contaminant concentration of soil solution. Thus the device and the method have great significance for water conservation and municipal rainfall runoff contamination.

Description

technical field [0001] The invention relates to an ecological control system for urban rainfall and surface runoff pollution, in particular to a planting grass ditch simulation test device and an experimental method. Background technique [0002] Urban precipitation runoff pollution refers to the rainwater and its formed runoff flowing through the urban ground (such as commercial areas, residential areas, parking lots, etc.) during the process of precipitation, gathering a series of pollutants (such as organic matter, nitrogen, phosphorus, heavy metals, etc.) Non-point source pollution of water bodies caused by direct discharge of drainage systems into water bodies. Urban rainfall and surface runoff pollution has become a key factor in urban water environment pollution and ecological degradation globally, and it is the third largest source of pollution in rivers and lakes. At the same time, water shortage has become a worldwide problem, and countries around the world are ac...

Claims

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Application Information

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IPC IPC(8): G01N33/18G01N33/24
Inventor 尤学一杨栩季民王秀朵潘留明
Owner TIANJIN UNIV
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