A swing method for installing a splay saddle 4 at a restricted site comprises the following steps: marking a hoisting point 21 below a frame system 1 and fixing a rack winch 5 to the ground; moving the saddle to a hoisting area on a trailer 3; connecting the saddle to a hoisting winch 13 on the frame system and to the rack winch and operating the hoisting winch to lift the saddle from the trailer; operating the hoisting and rack winches to lift, swing and land the saddle; operating the hoist and rack winches to swing the saddle gradually to the hoisting point; operating the winches to lift the saddle to the height of a splay saddle buttress 7; and, translating the saddle along the frame system and connecting the saddle to the buttress. A buffer device 6 may be provided which slides along a track installed between the rack winch and the hoisting point. The saddle may land on the buffer as it is swung to the hoisting point.
Swing installation construction method for tunnel anchorage splay saddle at a restricted site
2024-06-05
Patent
Electronic Resource
English
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