Types of piles used to strengthen the foundation

Reinforcing the foundation is an important task that needs to be done before it can be built on a weak ground. In this job, the pile is a solution to reinforce. So, in today's era, there are types of piles that can be applied to reinforce the foundation.

Anchor piles

A pile is applied by anchors to pile the ground instead of pressing the pile. Anchored over the disadvantage of the works such as narrow works, alleys. However, high prices; The length of each pile is short, from 2.5 - 4m and construction is slow. The basic weakness is that the bearing capacity of the pile is very small, because the anchor weight is not compressed by the load; Usually only 1/2 - 2/3 of normal piles. So it is important to note that when moving from pile to pile, we must consider the design and advice from the technical staff and the foundation of the pile to increase the pile at a pile.

Use reinforced pile

Strengths: Square piles made of reinforced concrete should be able to check the quality of the pile. The average size is 25x25cm, length about 11m. Strength is fast, neat, preloaded when the pile pressure and cost is not high, total cost, depending on the number of piles more or less or how much force. At present, owners use the most piles.

Weak points: Do not work in tight spaces, with overhangs and over drainage areas. Because cranes, equipment and supplies weigh 100 tons and load height. Construction of piles should have geological documents at the site to determine the depth of buried piles.

Use piles to treat the foundation

Strengths: The stacking process involves drilling holes, placing the cage down and placing the concrete directly. For construction of residential houses such as houses, villas, townhouses in the alley where cars can not enter the pile, small diameter piles, from 30 to 40cm and the process of making large diameter piles are often made bridge. or tall buildings. Over the past three years, many have used this method because of their high efficiency and economy: no contact with neighboring buildings; Built on all terrain as compact house, deep alley, small eccentricity.

Melaleuca cave treatment foundation

Strengths: For low-rise building designs, small loads can be used for bamboo poles (north), cobblestones (south) for piles.

Bamboo piles or cymbals are lightweight and easy to move with both motorcycles. It is also a good solution for weak water areas. They should be applied in soft water areas to ensure stability, strength and long-term survival.

Melaleuca pile thicknesses of 8-10 cm are the most common types used in building basins because they are suitable for construction and are suitable for a variety of buildings. The density is 25 piles / m2.

Weak point: when using Melaleuca forests, it must be deepened from 1.8 to 2.2m, so it is easy to contact nearby works, only for low-rise buildings, low loading by mini villa design.

About the depth of Melaleuca, many people often put Melaleuca stake at the lowest water level. This leads to the bottom of the nail too deep, which is detrimental to the construction, especially in the rainy season. Geological documents indicate: In higher groundwater, the soil is still wet, high saturation, sufficient moisture for cajuput will not dry and will not be trapped. Therefore, depending on the quality of land on the water, you can choose Melaleuca trees higher than the ground water level, as long as the head is always wet.

Each type of pile has its strengths and weaknesses depending on terrain conditions and construction conditions. Not choosing the right solution, the works can double the cost of foundation piles.