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18-Geom-B3 Networks and Precise Engineering Surveys: December 2018

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 Pre-analysis (Design Simulation) of a Geodetic Control Network
  2. Question 2 Measurement of Horizontal Directions by Reiteration, and its Checks
  3. Question 3 Underground Azimuth Determination with a Gyrotheodolite
  4. Question 4 Deformation Monitoring by GNSS
  5. Question 5 EDM Standard Deviation by Variance Propagation — why
  6. Question 6 Theodolite Axis Errors — Horizontal-Axis and Line-of-Sight Collimation
  7. Question 7 Precise-Levelling Field Practice — four short questions
  8. Question 8 Conventional (Relative) Static GNSS Positioning
  9. Question 9 Tunnel Breakthrough Error and its Prediction
  10. Question 10 Shaft Plumbing — Orientation and Coordinate Transfer through Two Shafts
  11. Question 11 Geodetic Deformation-Monitoring Techniques
  12. Question 12 Four Design-Parameter Requirements of a Deformation-Monitoring Scheme

Start with Question 1 →

Paper format: Closed-book, 3 hours, calculator permitted. TEN questions constitute a complete paper — Part A: all of #1–#8; Part B: one of #9/#10; Part C: one of #11/#12. All twelve questions are solved here for completeness. Most answers are essay-format; Q5, Q6 and Q9 carry short verified numeric illustrations.

Reference texts: Wolf, Ghilani & De Blij, Elementary Surveying: An Introduction to Geomatics (15th ed., Pearson); Mikhail & Gracie, Analysis and Adjustment of Survey Measurements (Van Nostrand, 1981); Kavanagh & Slattery, Surveying with Construction Applications; Hofmann-Wellenhof, Lichtenegger & Wasle, GNSS (Springer, 2008); Kahmen & Faig, Surveying (de Gruyter); Chrzanowski et al. on deformation analysis; USACE Structural Deformation Surveying (EM 1110-2-1009); ISO 17123 field-test procedures. Canadian frame throughout (NAD83(CSRS), CGVD2013).