Method for carrying out settlement of underground wall structure by means of high-pressure water guns

Abstract

The invention discloses a method for carrying out settlement of an underground wall structure by means of high-pressure water guns. The method for carrying out the settlement of the underground wall structure by means of the high-pressure water guns comprises the following steps that (a) a field is leveled, and setting-out is conducted for positioning; (b) the underground wall structure is poured in place; (c) a total station is installed; (d) pre-preparation for the settlement of the underground wall structure is conducted; (e) the high-pressure water guns are arranged; (f) settlement of the first stage of the underground wall structure is conducted by means of the high-pressure water guns; (g) the second stage of the underground wall structure is poured in place; and (h) the underground wall structure is reinforced through grouting. According to the method for carrying out the settlement of the underground wall structure by means of the high-pressure water guns, an annular slurry groove is formed in the periphery of the underground wall structure, so that a soil body supporting the underground wall structure collapses in order, and accordingly the underground wall structure sinks slowly under the action of the self-weight, and construction of an underground building wall and a building enclosure is achieved; the method for carrying out the settlement of the underground wall structure by means of the high-pressure water guns has the advantages of being high in construction speed and high in working efficiency.

Description

technical field [0001] The invention relates to the construction of walls and enclosure structures of underground buildings in the technical field of civil engineering foundation engineering, in particular to a method for subsidence of underground wall structures by high-pressure water guns. Background technique [0002] In the foundation construction of the construction site, the construction of the underground building enclosure structure must be implemented first before the foundation pit is excavated, and then the precipitation and excavation are implemented in the foundation pit. After the excavation is completed, the construction of the underground wall structure can be implemented. Because the construction procedure is complicated, cost is high, and efficiency is low, it is not favored; adopting the overall settlement construction method of the underground wall structure is exactly the construction method that the enclosure structure and the underground wall structure ...

AI Technical Summary

Problems solved by technology

[0002] In the foundation construction of the construction site, the construction of the underground building enclosure structure must be implemented first before the foundation pit is excavated, and then the precipitation and excavation are implemented in the foundation pit. After the excavation is completed, the construction of the underground wall structure can be implemented. Because the construction procedure is complicated, cost is high, and efficiency is low, it is not favored; adopting the overall settlement construction method of the underground wall structure is exactly the construction method that the enclosure structure and the underground wall structure are combined into one. The prior art underground wall structure The construction of the underground wall structure is to locate the prefabricated or cast-in-place underground wall structure on the ground, and excavate the soil at the internal support part of the underground wall structure, that is, the excavation settlement method, so that the underground wall structure relies on the gravity of the structure itself to overcome the surrounding After the frictional resistance, it sinks to the design elevation, and then the cushion and floor construction is carried out. This process replaces the construction of the enclosure and wall structure before excavation of the foundation pit. It has the advantages of saving labor and time and is very popular; The problem is that the excavation and settlement method has high requirements on the amount of soil excavated from the supporting parts of the underground wall structure and the balance of the excavation, otherwise the underground wall structure will be tilted and torn, and it will be very difficult to correct the inclination once it occurs The excavation settlement method is also easy to cause the external ground settlement of the structure, especially the excavation in the foundation pit with high groundwater level, which has a great impact on the surrounding soil environment, which also leads to local instability of the underground wall structure; in addition, the construction The method is also limited by the depth of the foundation of the enclosure structure, so it is not suitable for the construction of the enclosure structure with a deep foundation.

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