| 摘要 |
<p>A continuous vertical ground-excavating method which comprises driving a guide post vertically into the ground deeper than the predetermined depth of excavation so that said guide post can stand independently of excavation, fixing a lower earth loading mechanism to a desired part of said guide post by using slidable securing means, excavating the ground and placing the excavated earth onto said lower earth loading mechanism, carrying up the excavated earth vertically from said lower earth loading mechanism by a conveyor system comprising endless chains and conveying containers, and further carrying the earth along an upper horizontal earth discharging mechanism secured to the top end of said guide post so as to extend horizontally, lowering said lower earth loading mechanism by a distance equal to the depth of the ground excavated, then cutting the endless chain and adding complementary endless chains while mounting supplementary conveying containers, and repeating said steps the required number of times until the desired depth of excavation is reached, and an apparatus for carrying out said method. Of a plurality of chain wheels adapted to support and drive the endless chains, one driven by a prime mover provided at one end of said upper horizontal earth discharging mechanism is disposed on a truck having wheels so as to allow horizontal movement of said upper horizontal earth discharging mechanism for extension and shortening of the endless chains. A mechanism for holding the lower portions of the endless chains cut, after lowering the lower earth. loading mechanism a given distance upon completion of an excavating operation, is mounted integrally on a support structure of said lower earth loading mechanism,</p> |
