Dam bin surface green cutting device and construction method thereof

Abstract

The invention discloses a dam bin surface green cutting device and a construction method thereof. The dam bin surface green cutting device comprises a preparation device and an operation device, wherein the preparation device comprises a high-pressure water pump, an air compression device and a central centralized control center, a water inlet of the high-pressure water pump is connected with a water storage tank, a water outlet of the high-pressure water pump is connected with a high-pressure water outlet pipe, an air outlet of the air compression device is connected with an air sand outlet pipe, and the air sand outlet pipe is simultaneously connected with a sand box for providing sand materials and a small stone box for providing stone materials; and the operation device comprises a high-pressure water gun and an air sand gun which are connected side by side. According to the intermittent time and strength of concrete on the dam bin surface, single or double effects of the high-pressure water gun and the air sand gun are selected to perform green cutting on the concrete on the dam bin surface to achieve the best green cutting effect.

Description

technical field [0001] The invention relates to the technical field of dam concrete construction, in particular to a dam concrete bin surface flushing device and a construction method. Background technique [0002] Today's dam construction technology is becoming more and more mature, and it is gradually developing towards high dams above 300m. The interlayer treatment of high dam concrete is related to the interlayer bonding quality of the dam, which has a great impact on the anti-seepage of the dam concrete and the overall safety of the structure, which in turn is related to the For the permanent and safe operation of the dam throughout its life cycle, the requirements for the treatment of the construction joints between the concrete layers of the dam are becoming more and more stringent. [0003] At present, the concrete treatment between the concrete layers of the dam mainly relies on manual flushing of the warehouse surface with the flushing water gun, and the deep flush...

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Problems solved by technology

[0003] At present, the concrete treatment between the concrete layers of the dam mainly relies on manual flushing of the warehouse surface with the flushing water gun, and the deep flushing of the part with a long intermittent period using the sand gun for deep flushing or manual chiseling with the pneumatic pick. Although the above construction methods are basically It can meet the requirements of concrete interlayer treatment, but it relies too much on manpower, and the labor intensity is high. Most of the hair removal personnel belong to the grassroots workers, and the ability to grasp the quality of concrete interlayer treatment is insufficient, and it is prone to underflush (concrete milk skin has not been removed) or Problems such as excessive flushing (concrete pebbles or medium-sized stones are exposed in large areas), waste water, milk skin, and sand and gravel brought up by high-pressure water guns and wind sand guns are likely to cause injury safety accidents, and the warehouse surface needs to be gradually cleared out later. , which seriously restricts the efficiency of wool flushing, affects the quality of wool flushing, and causes a waste of resources

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