Anchoring Bolts TRIZ Cases

Segmented swivel body and fixed sleeve resolve the contradiction between secure anchorage and rotational freedom for reliable fall protection.

Twist-lock barrel design prevents grout leakage at high-altitude rock hole interfaces.

A single-anchor centrally grouted full-length anchored steel wire bundle with a central pipe and parallel wires.

Segmented anchor bolts apply preload and lag grouting to reinforce deep thin-bedded surrounding rock, preventing shear failure during stress adjustment.

A nozzle injects a multi-component mixture into rock holes using separate channels and an internal mixing member.

Frictionally inserted anchoring element expands against borehole wall after drilling, eliminating separate installation steps and reducing blockage risks.

A two-component polymer grout expands and solidifies to anchor rods, overcoming cement mortar limitations in collapsible loess.

Dual-passage inflation chuck expands rock anchors while evacuating fluids to prevent corrosion from trapped groundwater, maintaining structural integrity.

A supporting tube prevents cable buckling during insertion, ensuring complete resin mixing for secure anchoring.

Rotational drive means actuate the expansion element to overcome insufficient purchase on rock walls in mining environments.

A friction rock bolt assembly uses a deformable load absorber to dissipate impact energy across multiple components.

Modified PVC bearing plates and fiberglass bolts anchor mine ribs while cuttable components sink in refuse streams to prevent entanglement.

A welded cap and folded pipe structure create a U-shaped ridge that integrates into the sidewall to distribute expansion forces evenly.

A rock bolt uses threaded wedges to expand clamp members outwardly through a sleeve.

Deformable retainer arms engage hole walls to prevent self-drilling anchor rod fall-out, ensuring safe above-horizontal installation.

Two-section bolt head minimizes hazardous roof protrusion to under one inch, preserving ease of operation and clearance in low-clearance coal seams.

A friction bolt assembly uses a retainer mechanism to distribute axial loading forces and prevent component ejection.

A rock bolt uses a dual expander mechanism to shift elements radially outward during actuation.

Integrated drill carriages merge top and side anchor functions to eliminate sequential scaffolding, preventing roof caving while boosting productivity.

A rotary mechanism synchronously rotates drill and bolter feed rails to eliminate misalignment during indexing.

A rock anchor bolt manages leakage water through a dedicated outlet tube and sealing device during installation.

A self-drilling anchoring sleeve drills a hole and expands to engage surrounding strata in an interference fit.

Separate reservoirs and pumping units adjust grouting resin setting times via accelerator ratios, eliminating time-consuming system emptying.

Steel barrel ribs engage an aluminum tube to manage load-induced stress, preventing radial expansion while maintaining structural integrity.

Tangential recesses in a sliding body cage constrain an anchor rod via hardened sliding bodies to set precise clamping forces.

Nesting a valve inside a flexible feed hose prevents hole collapse and simplifies retraction during grouting operations.

A mine roof bolt uses an elongated rod movable within a polymer coating layer to absorb dynamic impact energy.

A sealable rock bolt integrates a water-activated expandable hydrophobic resin to create an immediate internal seal upon installation.

Compressing the tubular sleeve prevents axial movement and maintains a seal, enabling full column grouting without mechanical anchors.

Segmented anchors and elongate stems constrain deformation in high stress, accommodating dynamic loads without grout reliance.

Deformable retainer arms engage the borehole wall to secure self-drilling anchor rods, preventing gravity-induced fall-out before grouting.

A prefabricated tunnel anchor uses electrified filler material to destroy its structure and transfer prestress.