We often see the pavement of the road being dug up on the road to build some buildings and lay pipelines. This method of digging up the pavement not only destroys the pavement, but may also excavate repairs elsewhere. So is there any way to work without digging the ground? Of course there is, then this requires the use of horizontal directional drilling. Horizontal directional drilling machine is a device specially developed for such situations. It is widely used in the laying of flexible pipelines in the fields of electric power, communication, oil and gas.
Features of Horizontal Directional Drilling
Unlike closing the entire road for major excavation and overhaul, using horizontal directional drilling to lay pipes, cables, etc. only needs to select the starting point of the construction, and other road sections will not be affected. Therefore, it will not affect greening, traffic, and pollute the environment.
Horizontal directional drilling uses advanced equipment to position the drill bit, so that the drill bit always traverses in the set direction and arrives at the predetermined position, ensuring construction accuracy.
Horizontal directional drilling is a new technology that combines ordinary pipeline laying technology with drilling technology used in oil extraction.
Compared with traditional construction methods, horizontal directional drilling, a new construction method, has many advantages such as high construction efficiency, low cost, and no impact on the environment.
How does horizontal directional drilling work?
Before using horizontal directional drilling, it is necessary to first determine the position of the drilling rig and the position of the group head according to the drawings, and ensure that these two points are on the same straight line.
The mixed mud is pumped into the nozzle of the nozzle through the mud pump. The function of the mud is to cool the drill bit and reduce the friction of the drill bit, so as to avoid the occurrence of bit jamming.
Fix the horizontal directional drill at the drill hole position, rotate the appropriate drill bit, and drill holes according to the predetermined speed and angle. During the drilling process, it is necessary to pay close attention to the position and direction of the drill bit so that it can be corrected in time so that it can finally reach the exit position.
After the drill pipe carried by the drill bit passes through the ground, the drill bit is unloaded and the reaming tool is installed. The diameter of the reaming tool depends on the size of the pipeline being laid. During the pulling back process, the drill pipe rotates in the opposite direction, and the drilling rig drives the drill pipe and the reaming head back to carry out back pulling and reaming, and finally expands the diameter of the underground pipeline.
While reaming and dragging back, install the pipeline to be laid behind the reaming tool. The drilling rig drags the drill pipe, drives the reaming tool and the pipeline to pull back at the same time, and finally pulls the pipeline out of the ground to complete the laying of the entire pipeline.
About YG engineering machine manufacturer
YG engineering machine manufacturer provides a variety of drilling machines for customers to choose from. We have water well drilling machine (small water well drilling machine, portable water well drilling machine), DTH drilling rig, horizontal directional drilling, rotary drilling rig, core drilling rig and other drilling rigs. If you want to know more, please contact us.
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