Reinforcing structure of existing foundation bottom plate and construction method thereof

A foundation base plate and reinforcement structure technology, which is applied in the direction of foundation structure engineering, foundation structure repair, construction, etc., can solve the problems of increasing the cost per unit area and reducing the usable area of ​​buildings, so as to ensure safety and stability, reduce engineering costs, The effect of convenient construction

Inactive Publication Date: 2015-05-06
NO 2 CONSTR GRP CO LTD OF SHANGHAI CONSTR GRP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problem that the existing foundation floor reconstruction project realizes reinforcement by widening and enlarging the foundation floor, but at the same time reduces the usable area of ​​the building and increases the cost per unit area, the purpose of the present invention is to provide an existing foundation The reinforced structure of the base plate and its construction method, through the pile-up and pile-connecting construction of the base plate, can improve the bearing capacity of the foundation, ensure the safety of the building structure, and meet the requirements of the transformation

Method used

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  • Reinforcing structure of existing foundation bottom plate and construction method thereof
  • Reinforcing structure of existing foundation bottom plate and construction method thereof
  • Reinforcing structure of existing foundation bottom plate and construction method thereof

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Embodiment 1

[0026] Example 1: Combining Figure 1 to Figure 4 Explain the reinforcement structure of an existing foundation floor of the present invention. This embodiment takes a residential building as an example. Due to the modification of the building function, the bearing capacity of the original foundation cannot meet the new design requirements, and the basement that has been constructed according to the reverse method is required. The foundation floor is reinforced, and the reinforcement structure of the present invention realizes reinforcement by adding piles in the existing foundation floor 1 . Existing foundation base plate 1 depth reaches 2m in the present embodiment, and the bored cast-in-situ pile-10 of some pile diameter 800mm is arranged in it, and bored cast-in-place pile-10 pile is 28 meters long, and pile top elevation is-11.00m, and existing foundation A layer of reinforcing plate 2 is superimposed on the top of base plate 1 (i.e. newly added foundation base plate). Se...

Embodiment 2

[0031] Embodiment 2: Combination Figure 1 to Figure 4 Illustrate a kind of construction method of the reinforcement structure of existing base plate of the present invention, concrete steps are as follows:

[0032] S101: According to the preliminarily proven situation of the pile test in the early stage, the underground obstacles in the patching area are mainly concrete blocks and reinforced concrete pile heads. For the hole line, use a diamond water drilling rig of model SDL-250 (hereinafter referred to as water drill) to drill holes on the existing foundation floor 1, and use bored piles 220 with a pile diameter of 800mm for pile repair construction. Therefore, in the existing foundation floor 1. When opening the hole, the diameter needs to be expanded to 1000mm for the construction of bored pile 220. The depth of the pile hole must be greater than the thickness of the existing foundation floor 1. Combined with the selection of drilling equipment, the depth of the pile hole...

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Abstract

The invention provides a reinforcing structure of an existing foundation bottom plate and a construction method thereof, and relates to the technical field of building construction. The reinforcing structure aims at solving the problem of the existing foundation bottom plate modification project that as the reinforcing is realized by widening and lengthening the foundation bottom plate, the usage area of the building is reduced, and the manufacturing cost of unit price is increased. A plurality of drilling grouting piles I are arranged in the existing foundation bottom plate, drilling grouting piles II are additionally arranged in the existing foundation bottom plate, a pile base of each drilling grouting pile II penetrates through the existing foundation bottom plate, the top end of each drilling grouting pile II is implanted into overlapped reinforcing plates on the existing foundation bottom plate, and then the existing foundation bottom plate is firmly connected with the reinforcing plates through implanting bars. The reinforcing structure has the advantages that the bearing capacity of the ground foundation is adjusted by pile supplementing construction and strength improving of the foundation bottom plate, so the requirement of the bearing capacity of the newly-built building is met, the usage area of the building self is reduced, and the safety and stability of the building structure are guaranteed while the foundation structure is improved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a reinforcement structure for a completed base plate and a construction method thereof. Background technique [0002] At present, due to the adjustment of the design scheme of the upper structure of the building, the reconstruction of the completed foundation floor is mainly realized by increasing the width and height of the foundation floor, and widening and enlarging the cross-section of the vertical components. However, this foundation floor The transformation method reduces the usable area of ​​the building itself and increases the cost per unit area. For the real estate market where every inch of land is expensive, this kind of transformation project has great disadvantages. [0003] Therefore, how to design a scientific and economical base plate reinforcement structure and its construction method is a topic that needs to be further explored by those skilled in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/08E02D37/00
CPCE02D27/08E02D27/12E02D37/00
Inventor 郁卫华陈普
Owner NO 2 CONSTR GRP CO LTD OF SHANGHAI CONSTR GRP
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