Kimje, Chollabuk Aug 12, 2019 (Issuewire.com) - Sunghyun-ENG is a manufacturer specialized in manufacturing and distributing low-noise eco-friendly construction equipment.
DSB: Downtown Smooth Blasting:
- DSB is ultra-low vibration blasting technology compare to conventional blasting technology, and the small blasting hole diameter of 41mm can be drilled utilizing SRD-5000.
- The blasting holes diameter of 41~51mm drilled by SRD-5000 with ultra-low vibration and noise and the explosive diameter of 17~32mm can apply according to holes diameter.
Decoupling Index and Smooth Blasting:
Definition Decoupling Index
- DSB is ultra-low vibration blasting technology compare to conventional blasting technology, and the small blasting hole diameter of 41mm can be drilled utilizing SRD-5000.
- The blasting holes diameter of 41~51mm drilled by SRD-5000 with ultra-low vibration and noise and the explosive diameter of 17~32mm can apply according to holes diameter. Rock Blasting Technology Machine
Decoupling Effect
- Decoupling Index by Diameter
- Decoupling Index by Volume
The aspect of Pressure by Decoupling Charge
Characteristics of Decoupling Index
Relationship between Tangential Stress and Decoupling Index
- As decoupling index increases, tangential stress decreases on the hole wall.
- Consistent tangential stress is maintained when decoupling ratio is 1:1.
- The blasting velocity and pressure are slow and low in the air than in substance.
- When the charging length is long, higher blasting velocity explosive can be used to prevent blasting failure due to channel effect.
- Decoupling index of 1.5~2 is applied for smooth blasting.
- Decoupling index increases as blasting rock are harder and sound while decreases as it is softer and fractured.
The distinction of SRD-5000 Compare to Conventional Drilling System
Functionality
Potable Drill
- Manual operation
- No support for equipment Eco-Friendly Rock Drill
SRD-5000
Versatile percussion type hydraulic power system
Crawler Drill
Simple percussion type hydraulic power system
Safeness
Potable Drill
Vulnerable to accident
Risk of respiratory ailment, hearing loss, rock falling
SRD-5000
Protection of worker’s hearing ability by noise reduction cover system
Ensure worker’s safety by a warning system
Crawler Drill
Frequent malfunction due to the complexity of equipment
No warning system to ensure the worker’s safety
Media Contact
Sunghyun ENG josephmolly381@yahoo.com