🔩 FHWA Rock Slope Stabilization (Fully Resin-Grouted Cable Anchors 50-150 Kips)

Rock Bolt & Cable Anchor Pullout Calculator

Size structural rock bolts and high-capacity post-tensioned cable anchors for rock cuts, tunnels, and unstable cliff faces under FHWA-NHI-05-039: calculate bonded rock socket pullout resistance (Ultimate Pullout Lbs = π x Drill Hole Diameter x Bond Length x Rock Ultimate Bond Strength PSI), select 2-speed polyester resin cartridges, and rock engineering margins.

1. Project & Operating Inputs

Rock Anchors Installed & Proof-Tested (Anchor Count e.g. 64 Anchors)

Anchor Working Tension Load (Kips e.g. 75 Kips / 37.5 Tons SWL)

Customer Bid Price for Drilled, Grouted & Proof-Tested Anchor ($ / Anchor)

All-Thread Bar / 7-Strand Cable, Fast/Slow Resin, Bearing Plate & Drill ($)

2. Financial Breakdown & Yield

ROCK BOLT & CABLE ANCHOR SIZING

Turnkey Rock Bolting Contract Profit

Rock Slope Engineering Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost