CONSTRUCTION OF BASE FOR GROWTH OF PLANT FOR WATER-RESISTANT CRUMBLED STRUCTURE

摘要

PURPOSE: To protect a slope on a bare land or a side slope formed in earthwork for creation of land from erosion or collapse for a long period of time, and to create a base available for growth of plants and protection of environment in order to restore the situation available for growth of plants. CONSTITUTION: An erosion-preventing agent made of amphiphilic material including a hydrophilic part and a hydrophobic part for which equivalent weight ratio between hydrophilic group in the hydrophilic part and hydrophobic group in the hydrophobic part is 20/80-80/20 is mixed by agitation in a kneading tank with muddy base material for growth of plants obtained by mixing materials for base for growth of plants including solid grains such as clay with water, and after that the muddy material is conveyed under pressure with a pump to a discharge port. Aqueous solution of a high polymeric polyacrylamide coagulating agent in anionic type is taken into an agitation cylinder attached to the tip of the discharge port. The above three substances are mixed by agitation in the agitation cylinder and sprayed onto the surface of earthwork while crumble reaction is applied instantaneously to the muddy material.