Static pressure pile process for construction of existing building basement

Abstract

The present invention provides a static pressure pile technique for the construction of the basements of the existing building. The present invention includes eight steps: (1) a bearing platform and connecting beams are constructed, and pile-driving holes are arranged on the bearing platform; (2) anchor rods are embedded and reaction frames are installed; (3) precast piles are hoisted and jacks are installed; (4) the precast piles are driven to a designed elevation one by one, clamped and fixed; (5) earth is excavated layer by layer till the elevation of the bottom of the lower floor slab of the newly constructed basement; (6) the vertical force-bearing components, such as posts, walls, etc., are lengthened, and the bearing platform and the connecting beams of the next layer are casted; (7) the precast piles are driven to the next floor, and the reaction frames and the jacks are moved to the next floor; (8) the steps are repeated, and after the construction of the basement of each layer is finished, the reaction frames are disassembled. Applying the construction technique with the anchor rods and the static pressure piles to construct the basements of the existing building, the present invention has the advantages of shockproofness, noiselessness, no pollution, etc., thus furthest reducing the affection on the life of people in the building.

Description

Technical field [0001] The invention relates to a static pressure pile construction technology for the basement of an existing building, and belongs to the technical field of underground underpinning in civil engineering. Background technique [0002] The development and utilization of urban underground space is a necessity in the process of urban development. At present, problems such as obsolete infrastructure and waste of land resources are common in our cities. The orderly, rational, comprehensive and efficient development and utilization of urban underground space resources is one of the most effective ways to expand the capacity of infrastructure, improve the city's comprehensive disaster prevention capabilities, improve land use efficiency and save land resources. In accordance with the new urban planning and development of new buildings, the rational use of underground space has been taken into consideration. However, existing buildings without basements or underground pa...

AI Technical Summary

Problems solved by technology

The existing anchor static pressure pile technology is mostly applied in foundation and foundation reinforcement, as well as building deviation correction and other projects, and there is no example of using it in the construction of the basement of existing buildings

Images