Seepage-intercepting and pollutant-removing system of large channel non-water passing slope
A water-passing cross-section and channel technology, which is applied in the fields of large-scale water conveyance channel non-passing slope interception and surface runoff decontamination, can solve the problems of non-point source pollution along the line, non-passing slope water and soil loss, etc., without increasing The floor space, the pollution control effect is good, and the effect of reducing the penetration deformation
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[0010] The present invention will be further described below in conjunction with accompanying drawings 1-3.
[0011] 1. Arrange grass-planting slope protection belts (2) along the inner slope (1) of the non-passing section of the channel. According to the soil conditions of the slope surface, concrete grid grass planting and combination of grass and irrigation can be used respectively, and drought-resistant barren and soil-fixing effects are usually selected. Good native plants can also choose economic grasses such as ryegrass and alfalfa to form the first barrier for soil and water conservation and non-point source pollution control.
[0012] 2. Excavate a 100cm-deep upper-wide and lower-narrow trapezoidal section along the toe of the inner slope of the non-water-passing section of the channel, lay geotextiles (3) at the bottom, and fill in coarse gravel with a particle size of 20-60mm from bottom to top ( 4) 40cm thick, fine gravel (5) with a particle size of 2-20mm is 20cm ...
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