Static pressure pile process for construction of existing building basement

A technology for existing buildings and basements, applied in the direction of building construction, construction, building maintenance, etc., to achieve the effect of large space and reduced impact

Inactive Publication Date: 2008-06-18
SHANDONG JIANZHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Static pressure pile process for construction of existing building basement
  • Static pressure pile process for construction of existing building basement
  • Static pressure pile process for construction of existing building basement

Examples

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Comparison scheme
Effect test

Embodiment Construction

[0022] A frame structure building with an independent foundation is used to illustrate the static pressure pile technology for constructing the basement of an existing building of the present invention. It includes the following steps:

[0023] 1 The construction layout of static pressure piles is shown in Figure 1 and Figure 2.

[0024] a Construct the cap 3 and the connecting beam 5 on the indoor floor on the first floor of the building, and open four pile-pressing holes 1 on the cap 3;

[0025] b. Anchor rods 2 are buried on the periphery of the four pressure pile holes 1, a reaction frame 6 is installed on the anchor rod 2, and a reaction frame beam 10 is installed on the reaction frame 6;

[0026] c Lift the precast pile 9 into the pile hole 1, install a hydraulic jack 8 between the reaction frame beam 10 and the precast pile 9, and install the oil pipe 11, the oil pump 12 and other hydraulic systems that make the hydraulic jack 8 work ;

[0027] d Press the prefabricated pil...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/045E02D5/30E04G23/00
Inventor 贾强张鑫
Owner SHANDONG JIANZHU UNIV
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