🧱 Universal Wedge Rings (Precast Concrete C50/60 Segments, EPDM Gaskets, Ring Thrust kN)

TBM Precast Segmental Lining Calculator

Size precast reinforced concrete segmental lining rings (universal wedge tapered rings) erected inside TBM tailskins under AFTES & ITA guidelines: calculate ring hoop thrust forces ($N ext{ in kN}$), bending moments ($M$), verify EPDM elastomeric gasket water tightness ($>5.0 ext{ Bar}$), and precast tunnel manufacturing profits.

1. Project & Operating Inputs

Tunnel Rings Cast & Erected (Ring Count e.g. 1,200 1.5m Universal Rings)

Segment Concrete Thickness (Inches e.g. 12.0" C50/60 Fiber Concrete)

Customer Bid Price for Supplied & Delivered Segmental Rings ($ / Ring)

Steel Segment Molds, High-Strength Concrete, EPDM Gaskets & Labor ($ / Ring)

2. Financial Breakdown & Yield

PRECAST SEGMENTAL TUNNEL LININGS

Turnkey Segment Casting Plant Profit

Precast Tunnel Lining Manufacturing Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Direct Cost