During foundation construction, issues such as excessive foundation settlement, uneven settlement, damage to expansive soil foundations, damage to collapsible loess foundations, and damage to frozen soil foundations often occur. Therefore, in actual construction, the requirements of the superstructure for the foundation should be considered, and the functionality, feasibility, economy, environmental impact, and safety of foundation reinforcement schemes should be analyzed. Timely implementation of the appropriate foundation reinforcement scheme is vital to enhance the bearing capacity of the foundation and ensure its stability.
When conducting foundation treatment, the following key points should also be noted:
1. After treating soft soil foundations, the gradual dissipation of excess pore water pressure and a decrease in the void ratio lead to the consolidation of the soft soil foundation, increasing soil density and shear strength.
2. During roadbed filling, counter-pressure protection measures can be used, ensuring coordinated synchronization during construction and pipeline construction between roadbed works to maintain balanced foundation stress.
3. For some special bridge sections, methods like preloading with surcharge can be used. Additionally, in areas with high water tables in soft soil foundations, proper drainage construction, deepened drainage, and a comprehensive drainage system are necessary.
4. In the construction process of filling roadbeds, to ensure the stability of the filled roadbeds, counter-pressure protection measures can be added, specifically at half the height of the original design for the slope road embankment.
Tracked foundation pile drivers refer to pile drivers with tracked walking systems. The tracked walking system consists of a motor, planetary reducer, four-wheel drive wheel, support wheels, tension wheels, and combined track plates. It is safe and reliable, capable of rotating and moving freely. The track assembly and support wheels are imported as a complete set, featuring high strength, good elasticity, abrasion resistance, and a long service life.
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