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)