BOTTOM SEGMENT WHICH IS PROPER TO A SHIELD TUNNELING METHOD BY EVENLY FORMING AN UPPER SURFACE AND FORMING A LOWER SURFACE IN THE SHAPE OF AN ARCH

摘要

PURPOSE: A bottom segment is provided to be applied to a shield tunneling method by making an upper surface even and a lower surface arched.;CONSTITUTION: A bottom surface of a segment ring(10) is formed on a bottom segment. A lower surface forms an arch shape in order to make a circle with another segment(20). An upper side(104) is flat formed and has a pair of waterway(110) is in the tunnel length direction at regular interval. A connecting line installer(120) and grout hole are formed in inside. A sleeper and rail is installed on the upper side.;COPYRIGHT KIPO 2011