The Leader allows drilling to install piles in a vertical position in areas with dense soil. This method is most relevant in winter, because facilitates the driving of pile during the laying of the Foundation.
The Popularity of such technologies is increasing annually. Leader drilling not only reduces the resistance of the soil, but also to immerse the design in great depth. In addition, when performing work reduces the level of noise and vibration. This is one of the advantages of the method.
At the stage of design specialists determine the method of laying the Foundation, and a number of technology requirements and performance.
Drilling leader wells is carried out only after the preparatory work. Are primarily determined by the size of the piles. The leader diameter wells should be 3–5 inches less than the diameter of the reinforced concrete structure.
All work must be carried out in accordance with SNiP. Leader drilling is carried out before the driving of reinforced concrete structures in the ground. This technology is used very often due to the reduction of vibration and noise. After all piles are driven into the ground quickly and without much difficulty.
Diameter of the screw, which is used in the drilling of wells, depends on what kind of soil is in the ground. The depth should be about 1 meter less than the depth of the pile. It should be noted that the driving of reinforced concrete structures and pre-drilling is carefully planned by many experts. It allows you to fully comply with the technology and optimally place the pile in each case.
The Leader drilling of wells under piles often used when laying foundations on Foundation piles. The design can be of any size and of varying complexity. Most often this method is applied in the following cases:
This method of laying the pile is often used when building foundations on the site, closely located around structures. Such a method allows to reduce the noise level when working, and reduce vibration when driving reinforced concrete structures. Leader drilling can be done in densely populated areas, located in the city.
This technology allows to significantly speed up the process of laying the pile Foundation. Such drilling does not violate the integrity of concrete structures. Thus the technology allows to achieve the desired depth, while providing a rapid flow of threat and problem areas on the building site.
The Leader drilling is performed using pile drivers installations with drilling rotators. They replace pile hammers. The key to this is the observance of verticality. Only in this case it is possible to perform quality work. This is achieved by drilling rotators.
At work requires taking away the soil. Is being manipulated manually. If this is not done, the extra soil will not allow you to install the piles. Due to the removed soil, the mark increases by about 50 centimeters.
The leader Process of drilling and laying of piles can be divided into several stages:
When executing the leader-drilling screws can be used in several types: continuous and composite construction. In the first case the creation of the well is a non-stop process. This saves time and also ensures high quality of work performed.
The Popularity of the leader drilling can be explained by its advantages. Among the advantages of this technology are:
The disadvantages of leader drilling should include:
Despite the large number of advantages, the technology has one insignificant drawback. Is the price of the work. Leader the cost of drilling depends on several factors. First of all, the depth of backfill and the type of soil on the site. The average figure is 300–1,500 rubles for 1 meter.
The leader drilling Technology is constantly improving. The method applied in those places where it is impossible to do without additional processing of the soil. This technology is important when driving reinforced concrete structures in problem areas. Special equipment much fits the process of laying the Foundation of the future of the Foundation. Importantly, when performing work to comply with all recommendations of experts and to follow the rules.
Article in other languages:
PL: https://tostpost.com/pl/biznes/41306-lidernoe-wiercenia-pod-pale-technologia-zalety-i-cechy.html
Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."
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