Hydraulic method
This is a large group of methods such as using piles, absorbent mesh, composite material, absorbent wick, vacuum pump, electrode.
Biological method
A new way to use microbial activity to change the characteristics of weak soil, reduce flooding in the geological works. This is a method of little interest, due to the relatively long construction period, but quite a bit of economic support.
Chemical methods
It is one of the focus groups in the past 40 years. Use chemicals to strengthen linkages in the soil such as cement, glass, silicate method ... Or some special chemicals for electrochemical purposes. Cement and cement piles are relatively convenient and popular. In less than 20 years, there have been active studies on strengthening reinforcement for cement piles. Glass use is less common because the power of this method is not very good, and the electrolyte is very low due to the relative technology required.
Thermodynamics
Is a unique method that can be used in combination with other ways in the natural environment. Use hot air over 8000 to change the physical properties of weak soil. This method is mainly used for geological conditions of clay or fine sandy soil. It requires a small amount of energy, but the results are fast and relatively positive.
Physical method
Including methods to lower the water level, using sand well, penetration wick, electric permeability.
Use dynamic load
Relatively common with geological conditions of sand or gravel such as vibrating roller, roller compactor. Piles, bamboo piles, cave piles, wooden piles are often applied for civil works. The use of mechanical foundation systems is mainly used to reinforce the soil in new buildings such as railways and roads. However, the use of explosives is highly effective in the short term, but is not suitable for clay and requires the professionalism of the builder.
Mechanical methods
It is one of the most commonly used foundation treatments, including static load balancing (pre-compression), dynamic load (vibration damping), waterproof piles, mechanical nails and deep explosives. sand piles, piles (sand piles, cement piles, lime piles), geotextile, cushions. Enhanced by mechanical agents.
Alternative methods
This is the usual way to overcome obstacles caused by weak soil, builders replace part or all of the weak soil in the new earthen force bearing high mechanical strength such as sand pillows, sand mattresses and time. Long construction, application for all geological conditions. In addition, it is possible to combine machines with the addition of dry soil with humus conditions.
No comments:
Post a Comment