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US 2021/0348510 A1Published application
Wire saw excavation apparatus capable of changing cutting line in accordance with cutting section and tunnel excavation method using same
OwnerIn Hwan CHOIinventor
Life of this patent
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Abstract
The present invention relates to a wire saw excavation apparatus that is installed on a plurality of entry holes drilled according to a cutting section of a target surface of rock to be excavated so that the target surface is excavated by using wire saws, and more particularly, to a wire saw excavation apparatus that mounts N pulleys on one entry arm to cut the rock in N directions all at once, thereby remarkably improving the work efficiency.
Claims2
A wire saw excavation method comprising the steps of:
- drilling a plurality of entry holes selectively on the edge lines and the crossing points of lattice type cutting lines of a target surface of rock to be excavated and inserting a plurality of entry arms into the plurality of entry holes, each entry arm having multi-directional pulleys on which wire saws are wired according to directions thereof so as to segmentedly cut the entire section of the rock to be excavated to removable sizes all at once through the wire saws;
- collecting to a driving roller the wire saws that are located in horizontal, vertical, and diagonal directions in such a manner as to rotate in different directions from one another to perform the cutting operations for cutting sections;
- and operating the driving roller with a support force generated from a support frame supporting the entry arms inserted into the entry holes to segmentedly cut the edge lines and the lattice type cutting sections of the target surface to the removable sizes all at once.
A wire saw excavation apparatus for segmentedly cutting the entire section of rock to be excavated all at once, the apparatus comprising:
- two or more multi-directional entry arm pulleys inserted into entry holes drilled on the crossing points of the cutting lines of the entire section of the rock to be excavated in such a manner as to be mounted selectively on the end portions of entry arms in any one direction of horizontal, vertical, and diagonal directions, the number of pulleys inserted into each entry hole being changed according to the number of crossing cutting lines and cutting environments;
- and wire saws wired by direction onto the multi-directional entry arm pulleys inserted into the corresponding entry hole in such a manner as to connectedly operate with the wire saws wired onto the adjacent entry hole in the same directions, wherein the multi-directional entry arm pulleys inserted into each entry hole rotate in the different directions from one another, and even if the wire saws wired into the entry hole in the horizontal, vertical, and diagonal directions rotate in a relatively small space, the wire saws cut the entire section along the edge lines of the entire section and the lattice type cutting lines inside the entire section according to the directions all at once, without having any interference with one another.
Dependencies are inferred from the claim text.