Experienced in soil treatment for ponds in Vietnam

Vietnam is an area where canals and ponds are very intricate, as the development of society, economics, science and population increases but the land area does not increase. To solve this problem, people fill ponds and ponds to build houses. The problem is that this will be a weak ground that needs to be treated before construction. Today, we introduce the method of pile foundation treatment.

One of the safeguards to build a foundation on a weak foundation is to use a foundation for housing. Pile foundation is becoming more and more popular, the number one choice is supposed to be when encountering this geological form.

Pile foundation is a type of nail that is placed above the pile to form pile groups linking the braces and the foundation to create a solid foundation. The basement is used in situations where there are complex terrain, weak soil such as ponds, lakes, plain land, weak areas.

Select the number of piles

Typically, when the design of the home does not include geological survey reports, it is extremely important to accurately calculate the number of piles to avoid wastage, which is directly related to the economic problems of the owner. .

The number of piles for each station depends on the load being transmitted to the top of the column, the depth of the foundation being buried, but the depth of burial is not related too much to determine the number of piles. To calculate the number of piles can be as follows:

Load floor, wall load, dynamic load due to total usage 1.2-1.5 tons / m2 x load capacity of column coefficient x 1.2x the number of floors.

For example: calculate the number of piles 200x200 with the capacity of 20t / pile head, for the column with the load area of ​​20m2 (5 * 4) => the number of piles = 1.2 * 20 * 1,2 * 1 = 28, 8 tons / 20 = 1.44 piles => select 3 piles in this case to ensure the nails work simultaneously in two directions.

Size

For 4 piles we use 1000 x 1000 x 700 and put steel ф12a150. The steel stake is associated with steel plates and steel beams forming a block.

Grout size 300 x 600, put steel on 3ф20, lower and ф8a150 for steel belt.

Note: However, for grade 4 houses, the use of pile foundation is relatively low due to high pile costs as well as unnecessary foundation.

Selection of pile presses

The load of the pile 200x200 = 20t is the pile head bearing static load 20t, the load on the pile is the dynamic load during construction, the dynamic load is usually 2-3 times static load, it is also loaded on the top of the pile. Therefore, the compression load at the pile head 200 * 200 is 20 * 2-20 * 3t = 40-60t.

When choosing the pile for base treatment, the force must be greater than 15% of the dynamic load => pile presses must be> = 75t.

When stacked, there will be a switchboard from the clock to the actual pressure, just watch the meter at your watch that is capable of monitoring your work.

That is the note when using pile foundation in soil treatment that we summarize for you readers. Hopefully the article can help you understand better to be able to understand and know what your unit is doing, is standard. Thank you for following the article.