Foundation settlement grouting reinforcement
The concept of foundation settlement:
Before the construction of buildings and geotechnical structures, there is already a self-weight stress caused by the gravity of the soil in the foundation.. The load of buildings and geotechnical structures is transferred to the foundation through the bottom surface of the foundation or embankment, which changes the original stress state of the natural soil layer. Under the action of the additional three-dimensional stress component, the foundation produces vertical, lateral and shear. Shear deformation, resulting in vertical and lateral displacement of each point. The vertical deformation of the foundation surface is called foundation settlement, or foundation settlement
Causes of building settlement:
Due to differences in building loads and uneven foundations, the settlement of various parts of the foundation or embankment is more or less always uneven, causing additional stress and deformation in the superstructure or pavement structure. Uneven settlement of the foundation exceeds a certain limit, which will lead to cracking, skewing and even destruction of the building, such as cracks in the brick wall, jamming or sliding rails on the crane wheels, tilting of high-rise structures, deflection of the machine shaft, and connecting pipes to the building Fracture and bridge deviation from abutment, beam surface or pavement cracking, etc.
Qingdao foundation settlementMethod of grouting reinforcement:
The foundation reinforcement grouting reinforcement method is suitable for the reinforcement when the foundation is damaged due to uneven settlement, frost heave or other reasons. The increasing foundation area method is suitable for reinforcement when the foundation bearing capacity of an existing building or the size of the foundation bottom area does not meet the design requirements.