Why Do I Choose Helical Piles As The Pile Foundation For Self-built Houses?

The helical pile is a new type of pile foundation structure. Although it has been widely popularized abroad, it is still unknown to most people in China. Most people choose the more common cast-in-place piles, prefabricated piles, etc. when choosing a pile foundation.

Prefabricated piles are concrete piles made in advance according to a certain size, which are pressed into the soil by external force during construction. This method easily leads to soil deformation and affects surrounding structures. The cast-in-place pile is more flexible than the precast pile, but it takes time for the concrete to solidify, which will prolong the construction period.

Thehelical pile can well overcome the shortcomings of the first two pile foundations. It is screwed into the soil by an excavator, with low noise, small vibration, small disturbance, and no need to wait for curing. If the house is demolished, the helical pile can be directly twisted out for reuse. In addition, the helical pile is less affected by the weather and the environment, even in rainy and snowy days, it will not affect the construction, and it can even be constructed in water.

Boss Li from Yunnan plans to build a house for living in his hometown. When choosing a pile foundation, he chose the screw pile of Yichen Environment without hesitation. We specifically had a dialogue with Boss Li to understand why he firmly chose this product, which is still a brand new concept in China. He told us that he considered it mainly from the following three aspects.

No.1 Information installation system, extremely precise control

The power drive head of the helical pile not only provides the power to screw into the soil, but also is equipped with a verticality monitor and a torque monitor. The two instruments transmit the detected data back to the cab via wireless signals, and the operator can visually see the construction status.

The verticality monitor can ensure that the helical pile is vertical to the ground, and an alarm value is set on it. When a red alarm occurs, it means that the inclination between the helical pile and the ground is too large, and it needs to be corrected according to the direction indicated.

The torque monitor can detect the torque. In other words, it can detect the soil resistance. When the corresponding value is satisfied, we can think that the helical pile can withstand the corresponding compressive strength and resistance. It is a more scientific way to measure the stability of pile foundation through data.

No.2 Simpler construction process, shorter construction period

The construction process of the helical pile is very simple, just install the information drive head on the excavator, and then the operation can be carried out. The drive head uses the hydraulic system of the excavator as the power source, and the excavator has great flexibility and can enter many difficult terrains for operation.

The driving head rotates the helical pile into the soil, and the data from the two monitors can be seen in the cab. As long as it is judged whether the torque reaches the standard, it can be judged whether the helical pile has borrowed force in the supporting soil layer. . For example, when the torque reaches 12000Nm, the bearing capacity of thehelical pile can reach 22 tons.

No.3 Reusable, compound the requirements of sustainable development

Compared with the other two types of pile foundations, the most prominent feature of the helical pile can be described as its reusability. When the house needs to be demolished, the helical pile is not like the ordinary concrete pile, which also needs to be demolished. It only needs to be screwed out with the driving head, and it can be used again when the house is built next time.

The outer surface of the helical pile is 85μm galvanized layer, which has strong anti-corrosion performance, so there is no need to worry about it being oxidized in the soil, resulting in insufficient bearing capacity. In fact, this kind of helical pile can be guaranteed not to rot for 50 years. Therefore, as long as it is within the validity period of 50 years, the helical pile can be reused many times to achieve the purpose of saving resources.

These three types of pile foundations actually have their own advantages. In the construction of self-built houses in rural areas, helical piles may be a better choice. It is easy to construct, has a short construction period, has sufficient supporting force, and can be reused. It has been widely used in Yunnan and other places.