Split Set Stabilizer
Advantage:
In mining, tunnel excavation, and underground civil engineering, rock mass stability is fundamental to safety and efficiency. As a leading friction-type rock stabilization anchor, the Split Set anchor system provides a reliable, economical, and efficient solution for complex and dynamic geological conditions. This article will delve into the core advantages, technical specifications, and application value of Split Set anchors (also known as Split Set slotted anchors).
Product Overview of Split Set Stabilizer
The Split Set anchor rod is essentially a high-strength steel tube with a longitudinal slit. Its operating principle relies on pure friction anchoring: when driven into a borehole slightly larger than its diameter, the steel tube compresses, and its rebound force generates continuous, uniform radial pressure between the tube wall and borehole wall, creating powerful friction. This innovative design eliminates traditional resin or cement grouting processes, achieving true instant support.
This unique mechanism enables Split Set stabilizers to perform exceptionally well in fractured rock, expansive formations, or strata subject to dynamic displacement. It not only accommodates minor rock movements but can even enhance its anchoring force during displacement, ensuring continuous and stable support.
Split Set Stabilizer Specifications and Technical Parameters
To meet diverse engineering requirements, Split Set stabilizers are available in multiple standard specifications and support customization.
Diameter(±0.5) | 33mm | 39mm | 40mm | 42mm | 46mm | 47mm |
Length(±0.5) | 1.2m | 1.5m | 1.9m | 2.0m | 2.5m | 3m |
Mining Plate(±0.5) | 140*140*6mm,150*150*5mm,200*200*10mm | |||||
Material | Q235,16Mn,20 Mnsi | |||||
Why Choose Split Set Slotted Anchor Rods?
1. Instant Load-Bearing, Accelerating Project Progress
With no need to wait for grout curing, Split Set anchor rods begin providing stable anchoring force the moment they are driven into the borehole. This significantly speeds up construction cycles, making them particularly suitable for tunnel excavation and mining operations requiring rapid support, effectively boosting overall project efficiency.
2. Superior Mechanical Properties and Adaptability
Split Set anchors deliver outstanding tensile and shear strength, effectively controlling rock displacement. Their full-length friction anchoring mechanism ensures uniform load distribution, preventing stress concentration. Crucially, they exhibit excellent “yielding” characteristics, maintaining reliable grip during dynamic rock deformation—making them ideal for dynamic ground support.
3. Significant Cost Efficiency
By eliminating the need for resin, cement grout, or complex grouting equipment, the Split Set Anchor system directly reduces material and labor costs. Its rapid installation also indirectly saves equipment operating hours and management expenses.
4. Multiple Corrosion Protection Options for Harsh Environments
For demanding conditions like high humidity or corrosive groundwater, Split Set anchors offer galvanized or epoxy coating treatments. These protective layers effectively isolate harmful substances, significantly extending anchor lifespan in permanent applications such as slope stabilization and tunnel lining.
5. Flexible Application Scope
Whether for temporary roof support in coal mines and metal mines or permanent geotechnical reinforcement projects like highway slopes, hydroelectric tunnels, and underground power plants, Split Set rock bolts deliver reliable solutions.
Installation Guide for Split Set Ground Support System
Quality Control:
High-quality Split Set bolts feature smooth surfaces free of deep scratches or corrosion. All welds must be continuous and uniform, without cracks or porosity, to ensure structural integrity under load.
Standard Installation Procedure:
1. Drilling: The borehole diameter should exceed the bolt diameter by 1-3 mm. After drilling, thoroughly clean debris from the hole using high-pressure air or water.
2. Drive Anchor: Insert the anchor into the hole, ensuring the tube gap opening faces the weaker rock layer. Use a pneumatic or hydraulic impact hammer to drive the anchor steadily and continuously to the bottom of the hole at the designed depth.
3. Install the Disc Plate: Fit the spherical washer and disc plate, then tighten the nut. Apply an initial preload of 10-20 kN to ensure the disc plate contacts the rock surface and provides active support.
4. Quality Inspection: Verify the exposed length of the anchor rod. Conduct an in-situ pull-out test if necessary to confirm the anchoring force meets design requirements.
Key Advantages of Split Set Ground Support
The Split Set anchor system, with its unique full-length friction anchoring mechanism, combines immediate load-bearing capacity, high adaptability, and significant cost-effectiveness. It has been proven by numerous mines and engineering projects worldwide as an efficient and reliable rock stabilization anchor. Choosing Split Set slotted anchor rods means selecting a professional solution that effectively addresses rock mass challenges, ensures construction safety, and optimizes project costs. Equip your next critical project with the proven reliability of Split Set stabilizers.
