How deep are boring tunnels?
The important role of tunnel drilling rig in modern underground engineering
With the rapid development of mining, railway tunnels, highway engineering, water conservancy and hydropower, and underground comprehensive pipe gallery construction, tunnel drilling machines have become an indispensable and important equipment in underground construction.
In fact, there is no unified standard for tunnel drilling depth, which mainly depends on construction technology, geological conditions, rock hardness, and the performance of the selected hydraulic tunnel drilling machine. For projects constructed using the drilling and blasting method, the drilling depth directly affects the blasting effect, construction efficiency, and engineering cost. Therefore, it is particularly important to choose a hydraulic drilling rig with stable performance.
What factors determine the depth of tunnel drilling?
Many people mistakenly believe that the length of a tunnel determines the depth of the borehole.
In fact, the main factors affecting the drilling depth in tunnel construction include:
Rock hardness and geological structure
Tunnel section size
Blasting design plan
Drill rod specifications and length
Hydraulic system output power
Stability of drilling rig
Construction experience of operators
Normally, the drilling depth for small tunnel construction is about 0-20 meters; Mining and railway tunnel projects generally use 35-70 meter boreholes; Some special projects can achieve deeper drilling construction by extending drill rods or customizing equipment.
Therefore, for buyers, choosing Tunnel Drilling Machines that are suitable for engineering needs is more important than simply pursuing larger drilling depths.
Characteristics of tunnel boring machine products
This tracked hydraulic tunnel drilling rig has been specially optimized for underground construction environments and has the following characteristics:
1.360 ° rotary drilling rig
The drill frame can achieve 360 ° rotation, and multiple directional drilling can be completed without frequent movement of the entire machine, greatly improving construction efficiency.
2. Top drive hydraulic impact system
Using hydraulic top drive rock drills, the impact energy is stable and suitable for medium hard and hard rock construction, with faster drilling speed.
3. Hydraulic leg design
The equipment is equipped with hydraulic support legs, which can quickly complete the leveling of the whole machine, improve drilling stability, and reduce hole position deviation.
4. Tracked chassis
The tracked chassis has strong passability and can adapt to complex construction environments such as mine tunnels, railway tunnels, and highway tunnels. It can still move flexibly in narrow spaces.
5. Multi angle drilling
The drilling arm supports multi angle adjustment, which can meet various construction requirements such as horizontal holes, inclined holes, anchor holes, and blasting holes, improving the applicability of the equipment.
What projects are hydraulic tunnel drilling machines suitable for?
Modern Hydraulic Tunnel Drilling Machines are not only suitable for traditional tunnel construction, but also widely used in multiple industries.
1. Mining operations
Used for mining blasting hole construction, improving drilling efficiency, ensuring blasting effect, and reducing over excavation rate.
2. Railway and highway tunnels
Suitable for long-distance railway and highway tunnel construction, sustainable and stable operation, meeting high-intensity construction requirements.
3. Water conservancy and hydropower engineering
In projects such as water diversion tunnels and underground powerhouses of hydropower stations, hydraulic drilling rigs can adapt to complex rock formations and improve construction efficiency.
4. Underground infrastructure
Urban comprehensive pipe galleries, underground passages, subway engineering and other projects also require high-performance tracked tunnel drilling machines to complete drilling operations.
How to choose a suitable underground bore machine?
When purchasing tunnel drilling rigs, attention should not only be paid to the drilling depth, but also to the overall performance of the equipment.
1. Drilling diameter
According to different engineering requirements, different specifications of drill bits can be selected. This equipment can meet various aperture construction requirements and is suitable for blasting and anchoring hole construction.
2. Power system
The hydraulic impact system has stable output, high drilling efficiency, and is more suitable for hard rock construction. Compared with traditional pneumatic equipment, it has obvious advantages.
3. Chassis performance
The tracked structure has better climbing ability and passability, and can adapt to muddy, gravel, and rugged construction sites.
4. Operation and maintenance
The centralized hydraulic control system is easy to operate and maintain, which can effectively reduce equipment downtime and improve construction efficiency.
Factory Direct & Fast Global Shipping
Hongrun Heavy Industry operates large self-owned manufacturing plants with standardized production zones and complete warehousing systems, supplying engineering machinery directly from the factory to cut intermediate markup. We maintain abundant stock of drilling rigs and matching accessories. Professional loading teams use forklifts and dedicated loading ramps for secure cargo packing, enabling fast global shipment after order confirmation to deliver reliable equipment for overseas engineering clients.
FAQ
Q1: What construction projects are hydraulic tunnel drilling machines suitable for?
The equipment is widely used in mining, railway tunnels, highway tunnels, water conservancy and hydropower, underground pipe galleries, quarries, and various underground rock drilling projects.
Q2: Why choose a tracked hydraulic tunnel drilling rig?
The tracked chassis has good passability and stability, and the hydraulic system has strong power, which can improve drilling efficiency and adapt to narrow and complex underground construction environments.
Q3: Does the device support multi angle drilling?
support. The equipment adopts a 360 ° rotating drilling frame and is equipped with a multi angle adjustment mechanism, which can complete various drilling construction needs such as horizontal holes, inclined holes, anchor holes, and blasting holes, meeting different engineering requirements.
