A method for foundation reinforcement and rectification

A foundation reinforcement and foundation technology, applied in infrastructure engineering, foundation structure repair, construction, etc., can solve the problems of disturbing the base soil, aggravating the foundation settlement, and the reinforcement effect is difficult to achieve the expected goal, so as to strengthen the rigidity and eliminate the inclination Effect

CN111779045BActive Publication Date: 2022-04-01GUANGZHOU URBAN PLANNING & DESIGN SURVEY RES INST
8 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2022-04-01

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to the technical field of foundation construction, and discloses a method for rectifying deviation of foundation reinforcement, which includes the following steps: implanting anchor rod steel bars around the first pile hole, constructing anchor rod static pressure steel pipe piles, and using the steel pipe piles to repair the deep soil After the grouting is completed, install the pressurized component and temporarily lock the steel pipe pile; open a second pile hole on the foundation ground to be constructed and insert the grouted steel pipe. The grouted steel pipe also uses repeated grouting The local directional reinforcement of the shallow soil is carried out by means of local directional reinforcement, the pressure value of the steel pipe pile is monitored during the grouting process, and the steel pipe pile is gradually repressed through the pressurization component to realize the slow reinforcement and lifting of the subsidence soil layer and the correction of the foundation. This method slowly reinforces and lifts the subsidence soil layer through repeated multiple times of deep and shallow soil mass, multi-point grouting and progressive recompression of steel pipe piles, and directional correction of the foundation, which can effectively reduce or eliminate The uneven settlement and the inclination of the whole building have occurred, and the reinforcement and deviation correction are combined into one.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of foundation construction, in particular to a foundation reinforcement and deviation correction method. Background technique

[0002] At present, there are many ways to strengthen the foundation of buildings, including pile foundation underpinning method, tree root pile method, base grouting method, etc., and mature design and construction methods have been formed, but the above methods can only strengthen the strength and rigidity of the foundation. Controlling the settlement after foundation construction cannot effectively reduce the difference in settlement between piles, and can not make directional and reasonable corrections to the overall or partial inclination of the building that has occurred, so that it can be restored to its original position and meet the requirements of national standards. Especially when limited by the conditions of the construction site and the weak strength of the original fou...

Examples

Embodiment Construction

[0035] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or positional relationship. Elements must have certain orientations, be constructed and operate in certain orientations, and therefore should not be construed as limitations on the invent...