128176 ⎘
Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites ; Sealings or joints for engineering works in general; Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow Removing solid rocks
In-situ purification island structure and the construction method thereof
#2Method and device for deepening riverbeds and their cleaning from sediments
#3Debris-flow prevention method by controlling debris-flow magnitude and avoiding to block main river