Method suitable for underground storey adding of frame-structure independent foundation building

Abstract

The invention discloses a method suitable for underground storey adding of a frame-structure independent foundation building. The method solves the problem that basement storey adding in the prior art is severe in waste, and has the beneficial effects that waste of dismounting of pressed piles is reduced, and a new though is provided for underground storey adding of an existing building. The method includes the specific steps that earthwork above and around an independent foundation of the frame-structure building is excavated, and the independent foundation is exposed; a reaction frame and a jack are arranged on the top face of the independent foundation, and a precast pile is planted into the independent foundation through the reaction frame; the precast piles under all frame columns are connected in a pulling mode through rigid connecting parts to form a joint stress body; and a basement structure is constructed with the precast piles used as supporting columns of the basement structure.

Description

technical field [0001] The invention relates to the related technical field of construction engineering, in particular to a method suitable for underground building of independent basic buildings with frame structure. Background technique [0002] Orderly, reasonable, comprehensive and efficient development and utilization of underground space resources of existing buildings has become one of the most effective ways to expand infrastructure capacity, improve urban comprehensive disaster prevention capabilities, improve land use efficiency and save land resources. According to the requirements of urban planning, most new buildings have considered the development and utilization of underground space. [0003] However, a large number of existing buildings have not designed underground parking lots due to the lack of forward-looking due to historical reasons. With the increase in the number of cars, it is difficult to park. [0004] The patent "Static pile technology for constr...

AI Technical Summary

Problems solved by technology

The patent "A Method for Increasing the Basement of Existing Buildings with Frame Structure Independent Foundation" (CN201110075492.7) introduces a method of pressing in steel cylinder concrete piles to support the basement increase of the upper structure, but after the construction of the steel cylinder concrete piles is completed It is still necessary to cut off the part above the new foundation, resulting in waste

[0005] Patent "A Method and Building Suitable for Underground Addition of Frame Structure Buildings" (CN201610629939.3) introduces the process of using underpinning piles to add underground floors. Because the newly constructed pile foundation is outside the independent foundation, it is impossible to use the existing Due to the self-weight of the building, the static pressure pile technology is used, while the usual bored pile technology requires mud wall protection. The mud will pollute the surrounding environment, and the noise of the drilling machine will also affect the lives of residents.

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