A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Semi open cut type tunnel construction method at low overburden
According to the present invention, provided is a structure for upper hemisphere tunnel construction in accordance with a semi-open cut type tunnel construction method. A tunnel by semi-open cut construction at a low overburden section comprises: a first steel rib (110) having a main steel rib having an arch shape at an upper hemisphere tunnel portion; a first outer limb beam (120) for being coupled to the outside of both side portions of the first steel rib (110) to be inclined in an inner direction so as to increase bending stress and shear stress; a first support beam (130) for coupling an end portion of the first steel rib (110) and an end portion of the first outer limb beam (120); and a shotcrete (140) formed to be eccentric with respect to the first steel rib (110). A lower hemisphere tunnel portion is constructed by an NATM construction method.
본 발명에 의하면, 저토피 구간의 반개착 시공에 의한 터널에 있어서, 상반터널 부분에서 아치 형태를 가지는 주강지보로 이루어진 제1 강지보(110), 휨응력과 전단응력을 높이기 위하여 제1 강지보(110)의 양측부의 외측에서 내측방향으로 경사지게 결합되기 위한 제1 외측 사지보(120), 제1 강지보(110)의 단부와 제1 외측 사지보(120)의 단부를 결합시기키 위한 제1 받침 지보(130), 및제1 강지보(110)에 대하여 편심으로 형성되는 숏크리트(140)로 이루어지며, 하반터널 부분은 NATM 공법에 의하여 시공되는 반개착식 터널시공방법에 따른 상반 터널시공용 구조물이 제공된다.
Semi open cut type tunnel construction method at low overburden
According to the present invention, provided is a structure for upper hemisphere tunnel construction in accordance with a semi-open cut type tunnel construction method. A tunnel by semi-open cut construction at a low overburden section comprises: a first steel rib (110) having a main steel rib having an arch shape at an upper hemisphere tunnel portion; a first outer limb beam (120) for being coupled to the outside of both side portions of the first steel rib (110) to be inclined in an inner direction so as to increase bending stress and shear stress; a first support beam (130) for coupling an end portion of the first steel rib (110) and an end portion of the first outer limb beam (120); and a shotcrete (140) formed to be eccentric with respect to the first steel rib (110). A lower hemisphere tunnel portion is constructed by an NATM construction method.
본 발명에 의하면, 저토피 구간의 반개착 시공에 의한 터널에 있어서, 상반터널 부분에서 아치 형태를 가지는 주강지보로 이루어진 제1 강지보(110), 휨응력과 전단응력을 높이기 위하여 제1 강지보(110)의 양측부의 외측에서 내측방향으로 경사지게 결합되기 위한 제1 외측 사지보(120), 제1 강지보(110)의 단부와 제1 외측 사지보(120)의 단부를 결합시기키 위한 제1 받침 지보(130), 및제1 강지보(110)에 대하여 편심으로 형성되는 숏크리트(140)로 이루어지며, 하반터널 부분은 NATM 공법에 의하여 시공되는 반개착식 터널시공방법에 따른 상반 터널시공용 구조물이 제공된다.
Semi open cut type tunnel construction method at low overburden
시공성과 내변형력이 향상된 저토피의 반개착식 터널시공방법 및 터널시공용 구조물
MOON KYOUNG SUN (author) / SHIN YOUNG WAN (author)
2019-09-04
Patent
Electronic Resource
Korean
IPC:
E02D
FOUNDATIONS
,
Gründungen
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