| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a removal device and a removal method capable of safely and surely removing, moving and partially destroying boulder stones. <P>SOLUTION: The removal device includes: a container 10 which is opened at one end; a firing implement 20 of non-gunpowder composition which is disposed inside the container 10; a non-gunpowder gas generator 30 which is disposed inside the container 10; and a blocking body 14 which blocks the open end of the container 10. The open end side of the container 10 is disposed toward the boulder stone on a slope, and a gas pressure generated by the combustion of the non-gunpowder gas generator 30 by ignition by the firing implement 20 of non-gunpowder composition is jetted from the open end of the container 10 toward the boulder stone. When lifting the boulder stone on the slope, arrangement is performed on the downstream side of the boulder stone such that the gas pressure of the boulder stone removal device 1 is jetted upwards through the centroid of the boulder stone, the firing implement 20 of non-gunpowder composition is ignited by a remote ignition device 40 communicated with the boulder stone removal device 1, and the gas pressure generated by the combustion of the non-gunpowder gas generator 30 is jetted from the open end of the container 10 toward the boulder stone. <P>COPYRIGHT: (C)2012,JPO&INPIT |
