Product Description

The 42mm Split Set Stabilizers are a "heavy-duty weapon" in the field of geotechnical support, designed specifically to tackle difficult and critical support challenges.

Underground mining, tunnel construction, and infrastructure projects demand reliable ground support that’s easy to install and durable. Jiufu’s 47mm Split Set Stabilisers are engineered to solve these challenges—delivering strong friction anchoring, no need for anchoring agents, and adaptability to harsh environments from Siberian permafrost to South African deep mines.

Main Application Scenarios
Due to its extra-large diameter (42mm), which provides higher load-bearing capacity and better flexibility, it is particularly suitable for the following demanding engineering conditions:

1.High-stress, large-deformation roadways/tunnels:

Scenario: Roadways in deep coal mines and metal mines, areas affected by strong ground pressure and significant rock mass deformation.

Function: The larger cross-sectional area and friction area of ​​the 42mm anchor provide anchoring force and shear resistance far exceeding standard anchor bolts, effectively suppressing continuous creep and extrusion deformation of the surrounding rock and preventing premature failure of the support system.

2.Weak, fractured, and loose rock formations:

Scenario: Fault zones, severely weathered rock formations, surrounding rock with extremely developed joints and fissures, and silty soil layers – conditions with very poor self-stability.

Function: The large diameter provides a larger contact area and friction force, enabling reliable anchoring in low-strength rock masses. Its full-length friction anchoring characteristic "binds" the loose rock mass into a single pressure-bearing ring, rather than relying on anchoring at a single point.

3.Areas affected by dynamic pressure:

Scenario: Working face mining influence zones, areas where roadways are strongly affected by nearby blasting vibrations, and tunnels in seismic activity zones.

Function: The Split Set itself has good ductility and can adapt to certain rock mass displacements without brittle fracture. The 42mm specification further enhances this "pressure-yielding" but non-fracturing capability, maintaining support performance under dynamic loads.

4.Situations requiring rapid and immediate strong support:

Scenario: Temporary support of tunnel excavation faces (headings), emergency repair of roof falls in roadways, and rapid reinforcement of arch supports behind tunnel boring machines (TBMs).

Function: Installation is extremely fast (simply driven in with a hydraulic impactor or drilling rig), and it provides full anchoring force immediately upon installation, without the need to wait for curing like resin anchor bolts. This is crucial for controlling early rock mass deformation and ensuring construction safety.

5.As permanent support or support for roadways with a long service life:

Scenario: Main transportation roadways, chambers (such as pump rooms, substations), important traffic tunnels, or hydraulic tunnels. Function: Its all-steel structure offers excellent corrosion resistance (usually with anti-corrosion treatments such as galvanizing), high load-bearing capacity, and good reliability, making it suitable for permanent engineering projects requiring high long-term stability.