The construction principle of rotary drilling rigs is actually very simple. Under the torque of the drill rod and the pressure applied by the system, the drill bit rotates and advances the drill. Once the drill bit is full of excavated material, it is lifted out of the hole by a lifting device for unloading. This process is repeated to achieve the effect of rotary drilling. Its principle is simple, and its operation is also very simple. Today, the rotary drilling rig manufacturer will introduce the construction sequence of a small rotary drilling rig in a full sand layer.#piling rigs for sale#
First, our rotary drilling rig needs to be positioned correctly, assuming the pile location is accurate and the casing installation meets requirements. The necessary drilling mud needs to be prepared in advance, primarily to prevent borehole collapse and stabilize the water level within the hole for easy removal of drill cuttings. The next step is drilling. During drilling, it's crucial to control the equipment itself, such as drilling speed and pressurization. After drilling, a hole cleaning operation is required, followed by depth measurement. After cleaning, the reinforcing cage is fabricated and installed to effectively prevent borehole collapse. After installing the reinforcing cage, a guide pipe needs to be lowered. Before lowering the guide pipe, it's essential to check for air leaks, water leaks, deformation, and ensure that sealing rings are in place. A second hole cleaning operation is then performed.#piling rigs for sale#
The sequence of rotary drilling rig construction in sand layers is as described above. Some details will not be elaborated upon here. This is the entire construction process for rotary drilling rigs. You can refer to this article for future sand layer construction operations.#piling rigs for sale#
