The invention relates to a construction method for a gravity anchor bed of a double-wall steel cofferdam in deep water of a reservoir area without a covering layer, which comprises the following steps that a truck crane hoists a concrete block to be anchored below a first pulley block, and a winch is connected with a second hoisting ring of the anchor block through an anchoring steel wire rope; after the concrete block anchor is lowered to a riverbed, the top end of the anchoring steel wire rope is anchored on the anchor block launching anchoring end; the truck crane lifts a new concrete block anchor, the winch is connected with the lowering steel wire rope, the end of the lowering steel wire rope penetrates through the second anchor block hanging ring and then is anchored to the lowering anchoring end of the anchor block, the first anchor block hanging ring is provided with a clamping ring slidably connected with the anchoring steel wire rope, and the winch controls the concrete block anchor to be lowered to a riverbed along the anchoring steel wire rope. The lifting system has the beneficial effects that the pulley blocks and the temporary anchoring ends are provided for lowering of the concrete anchor blocks through the launching portal, the two pulley blocks and the two anchoring ends are arranged on the launching portal, meanwhile, the concrete anchor blocks are provided with the two anchor block hanging rings, and therefore conversion of the lifting system can be achieved.
本发明涉及一种库区深水无覆盖层双壁钢围堰重力锚着床施工方法,包括以下步骤:汽车吊起吊混凝土块锚至第一滑轮组下方,卷扬机通过锚固钢丝绳连接锚块第二吊环,混凝土块锚下放至河床后锚固钢丝绳顶端锚固在锚块下水锚固端上;汽车吊起吊新的混凝土块锚,卷扬机上连接下放钢丝绳,下放钢丝绳端头穿过锚块第二吊环再锚固在锚块下放锚固端上,锚块第一吊环上设置卡环滑动连接锚固钢丝绳,卷扬机控制混凝土块锚沿锚固钢丝绳下放至河床。本发明的有益效果是:通过下水门架为混凝土锚块的下放提供滑轮组和临时锚固端,下水门架上设有两组滑轮组和两个锚固端,同时混凝土块锚设置两个锚块吊环,因此可以实现的提吊体系的转换。
Construction method for gravity anchoring bed of double-wall steel cofferdam in deepwater of reservoir area without covering layer
库区深水无覆盖层双壁钢围堰重力锚着床施工方法
2024-08-30
Patent
Electronic Resource
Chinese
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