JPH0433797U

JPH0433797U -

Info

Publication number: JPH0433797U
Application number: JP7638390U
Authority: JP
Priority date: 1990-07-18
Filing date: 1990-07-18
Publication date: 1992-03-19

Description

[Brief explanation of drawings]

第１図は本考案の多連形トンネルにおける中柱
構造を示す正面図、第２図は第１図中の−線
矢視図、第３図は第１図において本設中柱を建て
込む前に仮設中柱が建て込まれている状態を示す
正面図、第４図は第３図中の−線矢視図であ
る。１Ａ，１Ｂ，１Ｃ……掘削穴、３……筒状壁体
、３Ａ……セグメント、３Ｂ……分岐部セグメン
ト、１０……本設中柱、１０ａ……脚部、１０ｂ
……水平部、１０ｃ……空所、１０ｄ……分割面
、１０ｅ……ブロツク。 Figure 1 is a front view showing the center pillar structure of the multiple tunnel of the present invention, Figure 2 is a view taken along the - line in Figure 1, and Figure 3 is a view showing the construction of the main pillar in Figure 1. FIG. 4 is a front view showing a state in which a temporary center pillar has been erected in front, and is a view taken along the - line in FIG. 3. 1A, 1B, 1C... Excavation hole, 3... Cylindrical wall, 3A... Segment, 3B... Branch segment, 10... Main pillar, 10a... Leg, 10b
...Horizontal part, 10c...Vacancy, 10d...Divided surface, 10e...Block.

Claims

[Scope of Claim for Utility Model Registration] A system constructed by assembling segments along the circumferential direction and the axial direction of the drilled holes on the inner surface of a multiple drilled hole formed by combining a plurality of drilled holes with a substantially circular cross section in a substantially horizontal direction. The structure of the middle pillar in a multiple tunnel is composed of a cylindrical wall body and a middle pillar built between the upper and lower composite parts of the cylindrical wall body, A plurality of blocks are combined in an arch shape between the plurality of segments arranged in the axial direction between the composite parts, and the joint surfaces of these blocks are substantially along the radial direction of the arch. Central pillar structure of multiple tunnel.