Self-assembling movable template for partition wall in main structure of subway station and half-cover excavation method section

Abstract

The invention provides a self-assembling movable template for a partition wall in a main structure of a subway station and a half-cover excavation method section. A base is formed by welding channel steel, two first channel steel are arranged at parallel intervals in the length direction, a plurality of second channel steel are arranged at parallel intervals in the width direction, and the spacingbetween the two first channel steel is the same as the spacing between two adjacent second channel steel; both ends of the second channel steel are separately welded and fixed to the first channel steel; a bracket is erected with a plurality of steel pipes, the horizontal spacing is 1m, and the step spacing is 1.2m, so that a double-row scaffold is formed; the steel pipes which are erected in thevertical direction are used as vertical rods, the bottoms of the steel pipes are welded and fixed to the base, and other steel pipes are connected at crossing nodes by fasteners; the steel pipes erected in the horizontal direction are horizontal rods, the two ends of the steel pipes extend out of the bracket and are used for being fixed to transverse rib steel pipes of a panel to bear the weightof the panel; and the panel is a blockboard, and transverse ribs and vertical ribs are bound and fixed by iron wires.

Description

technical field [0001] The invention relates to a self-assembled movable formwork for a partition wall in a main structure of a subway station and a half-cover excavation section. Background technique [0002] In some subway stations, the station and parking lot (entrance and exit lines) section adopts open cut (partial cover excavation) construction method. The total length of the station + parking lot is 701.5m, the width of the station is 20m~67m, and the depth is 10m~17m . [0003] In order to ensure that the driveway is closed separately and ensure ventilation, a 20cm thick partition wall is used for separation. The height of the partition wall is 6m-8m. The concrete of the partition wall is C35, and the total length of the middle partition wall is 1351m. [0004] Conventional partition wall construction adopts shaped steel formwork to fix the construction of pull screws, and large-scale mechanical equipment assists in hoisting operations. The construction speed is fas...

AI Technical Summary

Problems solved by technology

[0005] In the case of special-shaped foundation pits, the section from the station to the parking lot (entrance and exit lines) will be replaced by half-cover excavation and cover excavation. Large-scale equipment cannot be hoisted in place, and conventional partition wall construction methods are not suitable.

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