Tunnel Logistics — Probe & Grout Cycle Cost
Probe & Grout Cycle Cost for TBM drive planning.
Probe-ahead drilling is the tunnel's headlights — hours spent probing buy freedom from the fault zone surprise that costs months. The schedule line this computes is insurance premium arithmetic; projects that cut the probing interval in good ground and tighten it in bad spend it best.
Formula
Note: Planning-level tunnelling estimate — actual TBM performance is set by detailed geotechnical baseline data, machine design and the contractor's means & methods. Use for feasibility framing only.
Probe & Grout Cycle Cost for TBM drive planning. A free tbm performance & tunnelling tool — no sign-up, no upload, instant results in your browser.
About Tunnel Logistics — Probe & Grout Cycle Cost
Tunnel Logistics — Probe & Grout Cycle Cost computes the governing relationship time = cycles×probe + cycles×trigger%×grout live as you type. Probe-ahead drilling is the tunnel's headlights — hours spent probing buy freedom from the fault zone surprise that costs months. The schedule line this computes is insurance premium arithmetic; projects that cut the probing interval in good ground and tighten it in bad spend it best. Defaults are pre-filled with realistic values for this exact scenario, and the worked example substitutes your numbers step by step so the math is never a black box.
How to use Tunnel Logistics — Probe & Grout Cycle Cost
- 1Enter your values — Probe every, Hours per probe cycle, Probes triggering grout campaigns, Hours per grout campaign and more (sensible defaults are pre-filled).
- 2Read the live results: Probe cycles, Schedule consumed.
- 3Check the "with your numbers" line to see time = cycles×probe + cycles×trigger%×grout substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Tunnel Logistics — Probe & Grout Cycle Cost?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula time = cycles×probe + cycles×trigger%×grout with authoritative sources cited on the page (Maidl et al., Mechanised Shield Tunnelling, 2nd ed.; ITA/BTS — Mechanised tunnelling guidelines)
- ✓Probe-ahead drilling is the tunnel's headlights — hours spent probing buy freedom from the fault zone surprise that costs months.
- ✓Niche-specific defaults give a meaningful worked answer the moment the page loads
Frequently asked questions
What formula does the tunnel logistics — probe & grout cycle cost use?+
It evaluates time = cycles×probe + cycles×trigger%×grout, exactly as published. Sources: Maidl et al., Mechanised Shield Tunnelling, 2nd ed.; ITA/BTS — Mechanised tunnelling guidelines. The substituted worked example on the page lets you verify every step against the textbook.
How should I read the result — and how far can I trust it?+
Probe-ahead drilling is the tunnel's headlights — hours spent probing buy freedom from the fault zone surprise that costs months. Planning-level tunnelling estimate — actual TBM performance is set by detailed geotechnical baseline data, machine design and the contractor's means & methods. Use for feasibility framing only.
When is this calculator the right tool for the job?+
Probe & Grout Cycle Cost for TBM drive planning. A free tbm performance & tunnelling tool. The schedule line this computes is insurance premium arithmetic; projects that cut the probing interval in good ground and tighten it in bad spend it best. For neighbouring scenarios, the related tools below cover the same engine with different presets.
Do I need to install anything or create an account?+
No. The tool is pure client-side JavaScript: open the page and it works, offline once loaded, with no account, no quota and no data leaving your device.
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