SURPLUS SOIL HOPPER

PURPOSE:To eliminate problems of a right to enjoy sunshine and to prevent construction pollution such as jamming, wind damage and so on in a large-sized hopper by supporting a hopper in such a manner as to be freely elevated by driving means, thereby to form and cancel a loading space below the hopper. CONSTITUTION:In case of carrying out surplus soil digged up by underground construction, first, a hydraulic cylinder 10 is driven to lower a hopper 11 near the ground 4. On the other hand, at the underground site of an excavation, surplus soil is thrown into conveying means 12, and a winch 3 is driven to pull up the conveying means 12 on the ground through a rope 5 and a pulley 6. After the pulley 6 is moved in direction of B, the surplus soil in the conveying means 12 is thrown into the hopper 11. Subsequently, the hopper 11 is lifted up and a damped car 16 is advanced into a space 15 formed below the hopper, so that the surplus soil in the hopper 11 is loaded on the damped car 16. After that, the hopper 11 is again lowered to cancell the space 15.