TUNNEL STRUCTURE FOR QUARRYING AND QUARRYING METHOD USING SAME

WIPO Patent Application WO/2021/261649

A1

The present invention relates to a tunnel structure for quarrying and a quarrying method using same, the tunnel structure comprising a tunnel portion for transporting stones, the tunnel portion being inclined in a stony mountain such that stones quarried from a quarry site at the upper portion of the stony mountain roll therein and fall free on the ground. Thus, the stones quarried from the stony mountain freely fall on the ground through the tunnel that is inclined in the stony mountain, and accordingly, the costs and time for transporting the stones quarried from the stony mountain can be greatly reduced to improve the quarrying efficiency and to greatly improve the efficiency of transporting the stones. In addition, pollution such as noise, vibrations, dust, etc. that occur during the transport of the stones quarried from the stony mountain may be minimized, and thus, conflicts with and damage to residents living around the stony mountain can be minimized.

WO/2014/048119	NEW MINING PROCESS FOR UNDERGROUND IN-SITU DRILLING CORROSION OF NONMETALLIC MINERAL
WO/2009/103304	METHOD FOR THE CONTROLLED MAINTAINING OF A DISTANCE BETWEEN THE ROOF AND THE FACE IN LONGWALL MINING OPERATIONS
WO/2013/059911	UNDERCUT EXCAVATION METHOD WITH CONTINUOUS CONCRETE FLOORS

SON JUNG RAK (KR)

PCT/KR2020/009417

December 30, 2021

July 17, 2020

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SON JUNG RAK (KR)

E21C41/16

KR20020036990A	2002-05-17
JPH08158777A	1996-06-18
US4050740A	1977-09-27
US3904244A	1975-09-09
US3692364A	1972-09-19

THEHO PATENT & LAW FIRM (KR)

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