The Main Advantages Of The Crawler Mounted Drill Rig

The Crawler Mounted Drill Rig is a dual-purpose drilling rig suitable for high-pressure rotary jetting and anchoring construction technology according to market needs. It is easy to move and move, reducing the labor intensity of construction workers. At the same time, due to the installation of the crawler chassis, the moving speed during the drilling process can be greatly improved, thereby effectively improving work efficiency.

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The Crawler Mounted Drilling Rigs can be configured according to different performances. The maximum output torque of the rotary drilling rig can reach N.m, and the maximum pulling force can reach 60kN. The hole can be selected from the rotary drill of the hard alloy drill bit and the impact hammer of the down-the-hole hammer. Drilling and other processes, so that it can be directly formed into holes in the majority of the formation, and immediately sprayed into piles.

What is a jet grouting pile?

The jet grouting pile is to use the rotary jet drilling machine to place the rotary jet grouting pipe and the nozzle drill in the design height of the pile bottom, and the pre-formed slurry is passed through the high-pressure generating device to obtain a huge energy of the liquid flow, and then from the nozzle of the grouting pipe side. High-speed injection, forming a highly concentrated liquid flow, directly destroying the soil. During the spraying process, the drill pipe is rotated while lifting, so that the slurry and the soil are fully stirred and mixed to form a columnar solid body of a certain diameter in the soil. So that the foundation is reinforced. The construction is generally divided into two work processes, namely, first drilling and then spraying, then drilling down, and then lifting the mixing to ensure the proportion and quality of the slurry per meter.

Practice has proved that this method has a good effect on the treatment of silt, silty soil, cohesive soil, silt, sand, artificial fill and gravel soil. The grouting pipe with the nozzle is driven into the borehole, and the cement slurry is sprayed at a high pressure to mix and solidify the pile with the surrounding soil particles.

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The Working Characteristics Of The Crawler Mounted Drill Rig

 As a new type of basic engineering machinery, Crawler Mounted Drill Rig has been widely used in pile foundation projects such as roads and railways, bridges, water conservancy projects and urban construction projects after several years of promotion and application. Due to its high efficiency, energy saving, low noise, low pollution, and wide adaptability of the formation, it is favored by more and more construction units. Effectively use the rotary drilling rig to carry out dry-drilling bored pile construction and dry-drilling bored pile construction technology and management specifications, and conduct basic discussion and induction.

Construction method features:

1. During drilling, the hydraulic cylinder on the drill rail slide can be pressed downward to speed up the drilling speed.

2. This drilling method is to drive various drilling tools into holes through the box type torsion drill collar and rotary power head. The full hydraulic crawler crane with retractable track is convenient for moving and positioning.

3. The weight of the equipment, the power configuration of the whole machine and the output capacity of the main actuator are large, which meets the construction needs of special projects in certain special fields. Adapt to the reality that the construction of the project is more difficult, and the quality and efficiency requirements are constantly improving.

4. The operation and control of the equipment adopt electromechanical and hydraulic integration, which improves the reliability of operation and flexibility of operation. For example, the automatic display system for automatically measuring the skew of the computer has a great effect on improving the hole forming efficiency and the hole forming precision.

5. The telescopic active drill pipe greatly reduces the auxiliary working time, and it can also create conditions for timely replacement of the applicable drill bit type according to the formation change.

6. Less mud discharge is beneficial to the protection of the environment.

7. the spoil is convenient, the excavated soil residue, the car can be directly transported away, reducing the muddy on the site.

8. directly excavation, automatic dumping. There is no need to manually cooperate to open the bucket door.

9. lifting drills, casings, etc. do not need to cooperate with the crane.

Sanrock is a China Crawler Mounted Drill Rig Supplier. We have a high-tech work shop. We have a complete quality management system.
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