Tunnel Field Engineer AI
Tunnel Field Engineer AI — Use the web workspace directly in your browser to investigate faults in underground equipment, identify parts from photos, find manuals and check calculations. No Android installation is required.
See the appTested in the web workspace · Calculations
Fictitious inputs: 400 m³/h of slurry at 1,200 kg/m³ (ρₘ), with water at 1,000 kg/m³ (ρw) and mineral solids at 2,650 kg/m³ (ρs). Calculate the solids concentration by volume and mass, the dry-solids throughput, and the water and total mass flows. Show the formulas and check the mass balance. Assume steady flow, only water and mineral solids, additive volumes and negligible entrained air.
Cv = (ρₘ − ρw) / (ρs − ρw)
Solids concentration by volume = 0.1212 m³ solids/m³ slurry = 12.12% v/v
Solids concentration by mass = 0.2677 kg solids/kg slurry = 26.77% w/w
Dry-solids throughput = 128.5 t/h
Water mass flow = 351.5 t/h
Total slurry mass flow = 480.0 t/h
128.5 t/h + 351.5 t/h = 480.0 t/h
Mass balance closes.
Response recorded in Tunnel on 6 November 2026 using fictitious data, not a customer case. The request is shortened and the answer excerpted; results were independently recalculated. No web search was used and no Tunnel Knowledge information was retrieved for this test. This example demonstrates a mass balance, not equipment sizing.
Add equipment photos, nameplates, alarms, measurements and technical documents. Explain the operating phase and what changed.
Search for manufacturer datasheets and manuals, with verified documents and other leads when needed.
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For underground construction engineers, maintenance technicians, operators and site teams.
See the app in action
Actual Tunnel app screens. Open an image to see the details.
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TBMs, slurry and water treatment plants (STP/WTP), concrete batching plants, precast tunnel segment factories, rubber-tyred tunnel trains, A+B two-component grouting systems, pumps, conveyors, ventilation, compressors, drilling and shotcrete equipment, electrical systems, hydraulics and automation.
From field evidence to practical checks
Add equipment photos, nameplates, alarms, measurements and technical documents. Explain the operating phase and what changed.
Review possible causes, missing information, suggested checks and relevant documents. Keep the reasoning and attachments in the same case, from phone to computer.
When a response includes a Research basis section, Tunnel Knowledge shows whether stored information was retrieved, and Web shows whether web search was used. These indicators describe the research behind the response; they do not certify its conclusions.
In Documentation, validated PDFs are checked for their source and their match to the identified manufacturer and model. Datasheets and manuals are separated from Document leads, whose applicability to the exact model remains unconfirmed. Open the supplied links to review the original pages and files.
Match the equipment reference, variant and document revision to the machine on site. For calculations and fault checks, confirm the units, operating conditions and measurements before applying the answer.
One toolbox. Every field question.
Structure symptoms, test causes and turn field evidence into an actionable diagnostic.
Identify equipment from a photo and search for brand distributors in your chosen country.
Search for manufacturer datasheets and manuals, with verified documents and other leads when needed.
Run transparent engineering calculations with readable formulas and units.
Prepare checks, sequences and handover evidence from start-up to acceptance.
Explore plant operation, slurry and water treatment, pumping and process performance.
Search current tunnelling roles across equivalent job titles and regions.
Shared technical knowledge
Tunnel Field Engineer AI is built around a shared knowledge base: validated documents, technical corrections and useful field feedback can improve future answers for the tunnelling community.
Your cases remain private. Only validated, reusable technical knowledge is intended to enrich the collective memory.
Collective memoryVerified field knowledgePhone in the tunnel. Web in the office.
Use Tunnel Field Engineer AI directly in your browser or in the Android app. On the Web, sign in or create an account, open a case and choose a specialist module for your equipment question. Add photos, alarm details, measurements and documents, then continue the investigation as new observations arrive. Use the same account to find your cases, conversations and attachments on Web and Android.
Reopen your saved cases and their attachments on mobile or desktop.
Get it on Google PlayOne account across Web and Android
Every plan includes the engineering modules, photo and document analysis, voice input and synchronized private cases.
Credits used depend on your request and the analysis required. Each plan has a monthly allowance and a daily usage cap.
€4.99/ month
Essential AI assistance for occasional field use.
€9.99/ month
More capacity for regular technical work.
€19.99/ month
Maximum capacity for intensive field use.
No. You can use the web workspace directly in your browser. Sign in with your account to open your cloud cases and continue your work.
Add photos, PDF documents, Excel workbooks (.xlsx or .xls), and CSV files. Each web request accepts up to three attachments: 8 MiB per photo or PDF, 20 MiB per spreadsheet, and 25 MiB in total.
An internet connection is required for AI requests and cloud case access. Download essential documents before working without connectivity, where downloading is available.
Plans include a monthly allowance and a daily limit. Your workspace shows your account’s usage counters and prompts you if access or a usage limit prevents a new request. See Plans for the current allowances.
Yes. Sign in to view your saved cases and library. Sending new AI requests requires active AI access and available usage allowance.
Validated documents and document leads are shown separately. A lead’s applicability to your exact model has not been confirmed. Check the equipment reference, document revision and site requirements before using a document.
The same field language, end to end.
Create your account, or use the same login as the Android app.