Скачать или смотреть How to Transfer Bench Mark (TBM) | Transferring Bench Mark with Auto Level | Surveying 04

Learn complete TBM transfer surveying in this step-by-step tutorial using an auto level, including HI calculation, RL calculation, backsight, foresight, and arithmetic check.
Ideal for civil engineering students, surveyors, and construction professionals worldwide.

🎯 Complete Tutorial Coverage:
⏱️ 00:23 – Why TBM transfer is critical in surveying
⏱️ 00:46 – Auto level setup and hi calculation
⏱️ 01:18 – Tbm transfer ( Tbm1 - Tbm2)
⏱️ 01:53 – Again hi calculation (after instrument shift)
⏱️ 02:20 – Tbm transfer (Tbm2 - Tbm3)
⏱️ 02:41 – arithmetic check
⏱️ 02:55 – Three things to remember

This practical TBM transfer tutorial explains how surveyors safely transfer levels from one point to another using the Height of Instrument (HI) method.
Real staff readings, exact calculations, and arithmetic checks are demonstrated clearly using a mini site model.

📐 Key Topics Covered:
✅ TBM (Temporary Bench Mark) transfer
✅ Auto level setup and instrument shifting
✅ Backsight and foresight readings
✅ Height of Instrument (HI) calculation
✅ Reduced Level (RL) calculation
✅ Arithmetic check in levelling
✅ Common TBM transfer mistakes
✅ Surveying accuracy on construction sites

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#TBM #Surveying #AutoLevel #Levelling #ReducedLevel #HeightOfInstrument #CivilEngineering #ConstructionSurveying