SCHEDULE : 16-18 JUNI
PLACE : PEKANBARU
DURATION : 3 DAYS
DESCRIPTION
The course covers levelling and total station instrument use and adjustment, misclose distribution, Angle-Bearing-Angle conversion and revision of trigonometry concepts. Introduction to coordinates and explanation of the common survey computations for close and area are also covered.
COURSE CONTENT
Introduction
- What is land surveying? Explain Plane & Geodetic Surveying. Field & Office Work. Use of surveying for boundary definition, for construction, horizontal control & vertical control
- Engineering, cadastral, hydrographic & photogrammetric Surveys.
Principles of Surveying
Concept of point location by:
- Trilateration
- Offsets
- Traversing
- Intersection
The Surveyor’ Work
- Verify/establish horizontal & vertical controls
- Location/ refixing the positions of boundary marks in a cadastral survey
- Carry out a topographical survey
- Horizontal & Vertical monitoring of structures, dams, tunnels etc
- Carry out a pre-computation for a setting out survey
- Setting out building corners, roads, drains etc
Equipment
- Measurement of distance: tapes, chains, edmi
- Measurement of angles/bearings: theodoites, total stations, robotic system
- Measurement of N,E,Z coordinates: GPS, Total station
Field Procedure
- Working from whole to part
- Recce
- Planning & obtaining datum for survey
- Observation & recording
Horizontal Control Survey
Establishing horizontal controls using total station &./ or GPS
- Controls for setting out/traverses
- Concept of true north, grid north, bearings, angles etc
- Linear measurement with tapes, chains, edmi
- Accuracies & errors in linear measurements
- Method of measuring angles, bearing & their associated errors & accuracies
Traverses
- Open & close traverses
- Datum to commence survey
- Cadastral survey traverse & connection to ISN marks
Computations
- Linear Misclose
- Precision & Accuracy
- Adjustments: Bowditch Rule, Transit Rule & Least Square
- Calculate setting out data
- Calculate area & volumes
- Calculate clearances, distance, angles, coordinates
Vertical Control Survey
Ordinary levelling:
- Basic knowledge & Equipment
- Principle of finding
- Booking, calculations & checks
- Accuracy, precision & errors
- Adjustments
Perrmanent adjustment
Applications of levelling:
- Long & cross sections
- Contouring
- Setting out proposed levels
- Monitoring of settlement markers
INSTRUCTOR
SOLID CORPORATION TRAINER TEAM