Rubble concrete barrage reinforcing structure and construction method

Abstract

The invention relates to a rubble concrete barrage reinforcing structure and a construction method. The construction method comprises the following steps: 1) construction preparation; (2) chiseling away the surface of the old cofferdam body; (3) a top embedded steel bar construction safety protection platform is installed; (4) embedding steel bars at the top of the block stone concrete; (5) a top hanging type operation platform is installed; (6) a block stone concrete embedded steel bar shaping support is installed; (7) performing bar planting construction on the rubble concrete slope surface; (8) embedding steel bars on the bottom surface of the block stone concrete; (9) ground anchor pull rod fixing side formwork support construction is conducted; (10) carrying out mass concrete riprap construction; 11) mounting an inverted T-shaped rapid drainage system; (12) a new weir body is poured in a segmented mode; and (13) building a fish scale round pool template system. The fish scale round pool formwork system has the beneficial effects that the fish scale round pool formwork system adopts unit type assembly, is rapid to assemble and disassemble, ingenious in structural design and convenient to assemble, improves the installation efficiency, is short in construction period, can be recycled and reused, and can effectively save the cost.

Description

technical field [0001] The invention relates to a block stone concrete dam reinforcement structure and a construction method, which belongs to the field of civil engineering and is suitable for the reinforcement construction of block stone concrete dams. Background technique [0002] Barrages and dams belong to a traditional dam type in our country. Its advantage is that the structure is very simple, easy to construct, and the cost is relatively low. Therefore, it is widely used in rivers in vast mountainous areas. In order to repair the barrage, it is necessary to improve the safety, reliability and durability of the barrage, so as to treat both symptoms and root causes. [0003] However, the reinforcement of the old weir belongs to large-volume concrete. How can the reinforcement of the large formwork meet the rigidity, strength and stability? The rock-throwing rate of large-volume concrete is 15%, and the tower crane cannot be used for transportation. The crane can only ...

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Problems solved by technology

[0003] However, the reinforcement of the old weir belongs to large-volume concrete. How can the reinforcement of the large formwork meet the rigidity, strength and stability? The rock-throwing rate of large-volume concrete is 15%, and the tower crane cannot be used for transportation. The crane can only be used to transport the rocks to the warehouse with the excavator, and then the rocks are thrown away manually. How to carry out rock-throwing construction safely and efficiently? In addition, because the heat of cement hydration of mass concrete is not easy to dissipate quickly, the heat is stored inside, so that the temperature rises greatly, and cracks caused by temperature are prone to occur.

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