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1、 Service content
In the field of special engineering, the company mainly undertakes the design and construction of industrial and civil building structure inspection, appraisal, reinforcement and storey adding reconstruction projects
The breakdown is as follows:
(1) Construction of foundation anchor static pressure pile
(2) Reinforced concrete cutting and removal
(3) Carbon fiber reinforced, steel bonded / steel clad reinforcement
(4) Increase cross-sectional area reinforcement
(5) Replacement concrete method
(6) Prestressed reinforcement method
(7) Planting rebar and chemical anchor bolt
(8) Deviation correction and translation of buildings

3、 Reinforcement features:
1
The general process is to carry out structural appraisal first, and then carry out reinforcement design and construction according to the appraisal report
2
The reinforcement shall minimize the disturbance and damage to the original structure
For example, carbon fiber and steel bonding can be preferred for reinforcement
3
Before reinforcement, the owner shall provide the original building, structural drawings and geological data of the house; Provide relevant information according to the specific conditions of the project Relevant house inspection and appraisal report
The more information, the better
4
The advanced and reliable technology shall be selected as far as possible, and then the economic and reasonable factors shall be considered

5
Before the construction of reinforcement works, it is generally necessary to unload the original structure to minimize the impact of secondary stress

Deviation correction and translation of buildings
1
Building deviation correction
Buildings incline due to uneven foundation, uneven load or disturbed foundation soil
Building inclination will affect the use, cause anxiety, or even overturn, so it needs to be handled
The methods of rectifying deviation of buildings include jacking, forced landing, sinking resistance or a combination of these methods

On the basis of fully analyzing the causes and development trends, a detailed rectification scheme should be formulated for building deviation rectification
During construction, strict monitoring shall be carried out to strictly control the inclination correction rate
When approaching the rectification target, the fine-tuning process should be considered
At the same time, after reaching the rectification target, reinforcement measures should be taken to prevent subsequent back tipping

In the field of building deviation correction, in recent years, our institute mainly uses the pile pressing and soil digging correction method and the jacking correction method

1) Pile pressing and earth digging method for deviation correction
The deviation correction method of pile pressing and soil digging is to press the pile with anchor rod static pressure pile method on the side with large settlement of the building, and immediately anchor the pile with the foundation to prevent the building from further sinking, and then dig the soil on the side of the foundation with small settlement to reduce the bearing area under the foundation bottom, increase the stress in the foundation on the side of soil digging, so as to achieve plastic deformation of the foundation, resulting in slow and uniform sinking and back tilting of the building

2) Jacking deviation correction method
The jacking rectification is mainly aimed at the inclination rectification of the steel structure plant
Some of the columns with large settlement are jacked up, and the columns with large inclination are jacked up on one side, and then the foundation treatment is carried out to achieve the purpose of plant tilting back and column rectification

2
Building translation
In urban reconstruction, the existing buildings often affect the road widening and reconstruction; In addition, in the reconstruction of old cities, there are also ancient buildings that need protection and cannot be demolished on site
Therefore, building translation technology provides a good way to solve these problems
However, building translation involves many links, complex technology, high risk, and strict control requirements for the construction process

Translation methods and techniques: horizontal displacement (divided into three categories according to the trajectory, including straight line, broken line and curve), lifting displacement (overall lifting displacement and overall lowering displacement), combined displacement (two or more combinations)
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