Research Article
Study on Variation of Surface Runoff and Soil Moisture Content in the Subgrade of Permeable Pavement Structure
Figure 6
Artificial rainfall experiment device, (a) test chamber, (b) the bottom of test chamber, (c) pump, (d) rainfall equipment, (e) impact tamping, and (f) moisture tester.
(a) |
(b) |
(c) |
(d) |
(e) |
(f) |