Construction method of box-type building block revetment capable of collecting rainwater

The invention discloses a construction method of a box-type building block revetment capable of collecting rainwater. The construction method comprises the following steps that (1) a bank slope is trimmed; (2) a concrete slope toe is poured, and then box-type building blocks are assembled; (3) water permeable plates with water-absorbing cotton ropes are mounted at the communicating positions of an upper cavity and a lower cavity of each building block, and one ends of the water-absorbing cotton ropes extend into the bottoms of the lower cavities; (4) geotextile, a broken stone hardcore and planting soil with grass seeds are sequentially laid on each water permeable plate from bottom to top, and the other ends of the water-absorbing cotton ropes are buried in the planting soil; (5) a condensation cover plate covers the top faces of the upper cavities; and (6) concrete is poured for coping, and construction is completed. The box-type building blocks which are simple in structure, low in cost and easy to assemble are used, the revetment is formed by assembling tenon-and-mortise structures on the left sides and the right sides of the box-type building blocks, the revetment is low in maintenance cost, rainwater can be collected in the rainy season so that vegetation can grow in the dry season, the anti-scouring performance of the revetment is high, the ecological landscape function is good, and the revetment can serve as an ecological building block revetment for permanent slope protection.