Reinforced concrete stop log gate sealing method

Abstract

The invention discloses a reinforced concrete stop log gate sealing method. The method comprises the following steps that firstly, the surfaces of stop logs are cleaned, rubber sealing strips are pasted at the position, away B / 10 (the width of the stop logs is B) from the peripheral edges, of the surfaces of the stop logs, and therefore a circle of sealed horizontal sealing strips is formed by the rubber sealing strips; secondly, rubber sealing strips are pasted at the positions, away B / 10 from the side walls of gate grooves, of the inner surfaces of the gate grooves, and perpendicular sealing strips is formed by the rubber sealing strips; thirdly, the stop logs in the first step are sequentially lifted and placed in the gate grooves, and the horizontal sealing strips and the perpendicular sealing strips exposed out of the gate grooves are firmly pasted; fourthly, the above steps are repeated until the last stop log is lifted, and finally concrete is used for integrally casting and covering the stop logs. The method is simple, convenient to construct and low in material cost, a plastic colloidal system is formed between the stop logs, and after the stop logs are blocked, the water leakage problem is solved.

Description

technical field [0001] The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a water-stopping method for a reinforced concrete stacked beam gate. Background technique [0002] In the construction of domestic hydropower projects, when the water retaining head of the gate used for the lower gate of the diversion tunnel is low or the end face size of the diversion tunnel is small, the entrance of the diversion tunnel is generally closed by using a concrete stacked beam steel gate to lower the diversion tunnel. Purpose. However, when concrete stacking beams are used, it is generally necessary to stack several or dozens of concrete stacking beams together to meet the water-retaining requirements, because the absolute flatness and smoothness of the surface of the stacking beams cannot be guaranteed after prefabrication, resulting in stacking During the beam installation process, the joints between the upper and lower beams ...

AI Technical Summary

Problems solved by technology

However, when concrete stacking beams are used, it is generally necessary to stack several or dozens of concrete stacking beams together to meet the water-retaining requirements, because the absolute flatness and smoothness of the surface of the stacking beams cannot be guaranteed after prefabrication, resulting in stacking During the beam installation process, the joints between the upper and lower beams cannot be completely matched, and the joints between the stacked beam and the gate groove structure are not tight. The construction of the diversion tunnel plugging section and the later operation of the project have a great impact

It is difficult to prevent it from becoming a channel for water seepage when simply using rubber belts or cotton wool to block it. The more the number of stacking beams, the more gaps there will be, so the water seepage will increase, making the construction of the diversion hole plug body difficult or even impossible. Construction; when steel gates are used to retain water, although the steel gates have a good water retaining effect, the investment of steel gates is relatively high, and the steel gates cannot be recycled and reused after the gates are closed, so the project investment is relatively increased

Therefore, the existing gate structure for the lower gate of the diversion tunnel is still not ideal.

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