What is the difference between a rotary drilling rig and a rotary drilling rig

Rotary drilling rig models include small machines, medium machines, and large machines.

1. Different applications

1. Rotary drilling rig: used for drilling rock formations with rock hardness f≤6 in open-pit mines, and also for drilling hard interbedded rocks with f=7-11. When drilling, the rotary torque and shaft pressure are applied to make the drill rotate and feed to cut the rock.

2. Rotary drilling rig: a construction machine suitable for hole-forming operations in building foundation engineering. It is mainly suitable for the construction of sandy soil, cohesive soil, silty soil and other soil layers, and is widely used in the construction of various foundations such as cast-in-place piles, continuous walls, and foundation reinforcement.

Two, the characteristics are different

1. Rotary drilling rig: used for drilling rock formations with rock hardness f≤6 in open-pit mines, and also for drilling hard interbedded rocks with f=7-11. When drilling, the rotary torque and shaft pressure are applied to make the drill rotate and feed to cut the rock.

2. Rotary drilling rig: adopts hydraulic crawler telescopic chassis, self-lifting and foldable drill mast, telescopic drill pipe, automatic verticality detection and adjustment, digital display of hole depth, etc. The operation of the whole machine generally adopts hydraulic pilot control and load transmission. It is easy to operate and comfortable. The main and auxiliary winches can be applied to the needs of various situations on the construction site.

3. Different development

1. Rotary drilling rig: In the construction of large-diameter cast-in-place piles in high-rise buildings, ports, dams, and bridge foundation projects, the use of rotary drilling rigs for bored pile construction has convenient operation, safety and reliability, strong adaptability, low cost of use, and hole-forming efficiency The advantages of high height, good hole wall stability, and reasonable construction organization and management during construction can play a better role in promoting the construction of cast-in-place piles.

2. Rotary drilling rig: It has obvious advantages in the construction of bored piles in subway projects and has strong applicability; high degree of automation and low labor intensity; high drilling efficiency; good pile quality; low environmental pollution. Can significantly improve engineering construction efficiency and engineering quality. When rationally selecting construction methods and construction techniques, resources such as material, financial, and human resources can be saved to the greatest extent.

The differences are as follows:

1. Different ways of moving

Some models of rotary drilling rigs cannot move on their own, and some have walking-type chassis that can move on their own;

Rotary drilling rigs generally adopt hydraulic crawler-type telescopic chassis, which can move by themselves;

2. The applicable environment is different

Rotary drilling rigs are mainly used to drill blast holes in mining and tunneling faces, and can also be used to drill bolt holes, water exploration holes, gas drainage holes and coal seam water injection holes;

Rotary drilling rigs are mainly used for the construction of sandy soil, cohesive soil, silty soil and other soil layers, and for the construction of various foundations such as cast-in-place piles, continuous walls, and foundation reinforcement;

3. The treatment of mud is different

The mud of the rotary drilling rig is used to make mud while drilling, and the waste mud is increasing;

The mud of the rotary drilling rig is made in advance and then drilled, and it is recycled and used, the less it is used;

4. Specific model

Rotary drilling rigs are divided into two types: handheld hydraulic rotary drilling rigs and rail type hydraulic rotary drilling rigs according to different propulsion methods;

Rotary drilling rigs are divided into small machines, medium machines, and large machines according to different powers;

Features of rotary drilling rig:

1. It adopts hydraulic crawler type telescopic chassis, self-lifting foldable drill mast, telescopic drill pipe, with verticality automatic detection and adjustment, hole depth digital display, etc. The operation of the whole machine generally adopts hydraulic pilot control, load sensing, and operation Lightweight and comfortable.

2. The main and auxiliary winches can be adapted to the needs of various situations on the construction site.

3. This type of drilling rig is matched with different drilling tools, suitable for dry (short spiral) or wet (rotary bucket) and rock formation (core drilling) drilling operations, and can also be equipped with long augers, underground continuous wall grabs, vibration Pile hammer, etc., realize multiple functions.

Essential difference: 1. Mud 2. Movement 3. Drill pipe 4. Drive 5. Efficiency

1. Mud: The mud of the rotary drilling rig is used to make mud while drilling, and there is more and more waste mud. The mud of the rotary drilling rig is made in advance and then drilled, and it is recycled and used, the less it is used.

2. Mobile: Some rotary drilling rigs have no mobile devices, and some are walking type. Rotary drilling rigs are crawler-type mobile.

3. Drill rod: The drill rod of the rotary drilling rig is 3 meters per section, connected section by section. The drill rod of the rotary drilling rig is telescopic, which is in place at one click.

4. Drive: The rotary drilling rig is driven by an electric motor. Rotary drilling rig is driven by diesel engine

5. Efficiency: If the ground is under strong weathering, the construction efficiency of the rotary drilling rig is obvious.

They are all piling equipment, but the equipment is called differently. Like a rotary drilling rig, it can also be called a pile driver.