Reinforcements and replacements of foundations
Reinforcement is one of the most important preventive measures for maintaining the safety and stability of buildings, bridges, civil engineering structures and foundations.
Reinforcement of foundations has many advantages:
1. Strengthen the infrastructure and prolong the usage time of structures;
2. Reduce the risks of foundation related accidents;
3. Improve the bearing capacity and load distribution characteristics of soil;
4. Facilitate the foundation construction of buildings and bridges;
5. Increase the economy efficiency of foundation foundations;
6. Increase the stability of structure and the security of structure safety;
7. Reduce vibration and noise.
Foundation reinforcement technology is helpful to improve the load carrying capacity and seismic performance of the foundation. The choice of reinforcement measures must be considered scientifically in order to ensure the safety, stability and durability of the foundation.
The main reinforcement measures are divided into two categories, basic and additional reinforcement. The basic reinforcement measures include deepening the foundation, widening the foundation, covering the foundation with protective layer and rock masses and so on. Additional reinforcement measures include improving the soil quality and increasing the bearing capacity around the foundation. The key point of the additional reinforcement measure is to reduce the expected settlement and improve the stiffness of the structure.
In addition, the safety and stability of the foundation should also be taken into consideration when selecting the reinforcement measures. During the reinforcement process, not only should the calculation, material selection, construction and quality control meet the requirements, but also the integrity and uniformity of the foundation shape should be considered.
When the structure can no longer be reasonably reinforced or when the best reinforcing measures still do not meet the requirements, it may be necessary to replace the entire foundation. The replacement process involves removal of the existing foundation and installation of a new foundation system tailored to the new building or structure in place.
Comparing with reinforcement, replacing a foundation is a relatively expensive measure. It is necessary to understand the local soil conditions, choose the appropriate installation method, use the best design approach, select appropriate materials and perform detailed installation quality control. Besides, the new foundation system should have not only sufficient capacity to meet all expected design loads but also good seismic performance.
In conclusion, reinforcement and replacement of foundation are two important measures for maintaining the safety and stability of buildings, bridges and civil engineering structures. Combine both measures can ensure the optimal performance of the foundation.
