A kind of cement-based material underwater grouting or grouting block stone foundation construction method

Abstract

The invention relates to a cement-based material underwater grouting or mud-jack rock block foundation construction method and belongs to hydraulic cement-based material underwater foundation structure construction methods. A forming gabion is used for forming or the excavation boundary of a foundation serves as the outline, chicken girt concrete with the good fluidity and the high sand ratio is poured into a paving rock block stacked body or gaps of the paving rock block stacked body is filled with the chicken girt concrete by means of the self-leveling performance of the chicken girt concrete underwater, and thus underwater cement-based material grouting rock block or mud-jack rock block structure construction is achieved. The cement-based material underwater grouting or mud-jack rock block foundation construction method has the advantages that when underwater grouting or mud-jack rock block foundation construction is conducted and the water depth is smaller than one meter, construction can be directly carried out without draining water, and thus the construction progress can be greatly accelerated and the construction cost is reduced; when the method is used for reservoir risking obviation and reinforcement construction, the water drainage amount can be greatly reduced, and the construction can be completed on the premise that the effect that water is stored as much as possible is effectively ensured.

Description

technical field [0001] The invention belongs to a construction method of an underwater foundation structure of a hydraulic cement-based material. Background technique [0002] Many water conservancy projects had to be shut down due to difficulty in drainage. For example, in recent years, the weather has been extremely dry, and it is difficult to store water in the reservoirs. It is often difficult to store water in the reservoirs in autumn. However, for the reinforcement of the reservoir, the dam slope protection must release water, which affects the water storage of the reservoir. Farmers are very opposed to it, and often make the local farmers block the construction, because the release of water may affect the cultivation of the next year. For example, when carrying out the slope protection construction of the reservoir dam, the foot groove of the foundation is excavated deeply, and it is difficult to carry out the construction because of the water protection by farmers. ...

AI Technical Summary

Problems solved by technology

However, for the reinforcement of the reservoir, it is necessary to release water for the slope protection of the dam, which affects the water storage of the reservoir. Farmers are very opposed to it, and often make the local farmers block the construction, because the release of water may affect the cultivation of the next year.

For example, when carrying out the slope protection construction of the reservoir dam, the excavation of the foot groove of the foundation is relatively deep, and it is difficult to carry out the construction because of the water protection by farmers

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