engineering
2
• Curve elements: angle of deflection, intersection point (IP), angle o f deviation, tangent distance, tangent point (TP),long chord, running chainage, standard chord, sub chords. • Describe the method of setting out circular curves b y tape only. • ethod offsets from long chord, offsets from the tangent, offset from chords produced • Practical test • Describe the method of setting out using one theodolite and a tape (deflection angle) an d tabulate the setting out data for use on site. • !"plain various methods of overcoming obstacles #hen setting out a curve, including the use of co$ ordinates. • ethods: obstacles #here I P% TP are inaccessible, #here features prevent direct measurement of points on the curve itself • Class test • Identify the various elements and purpose of a transition curve. • !lements: super elevation, length of curve, shift, tangent length, offsets • !"plain the use of &lobal Positioning 'ystems (&P') for surveying and setting out. • !"plain the use of &eographical Information 'ystems (&I') for updating plans and identifying developments in relation to e"isting features. • !"plain the use of the follo#ing: !D Theodolite Total station. otating laser for alignment and to control reduce level of e"acation. Pipe laser
description
site surveyingsite managementpad foundationdesign structural concrete slab column designslab design
Transcript of engineering
Curve elements: angle of deflection, intersection point (IP), angle of deviation, tangent distance, tangent point (TP),long chord, running chainage, standard chord, sub chords.
Describe the method of setting out circular curves by tape only. Method offsets from long chord, offsets from the tangent, offset from chords produced
Practical test
Describe the method of setting out using one theodolite and a tape (deflection angle) and tabulate the setting out data for use on site.
Explain various methods of overcoming obstacles when setting out a curve, including the use of co-ordinates. Methods: obstacles where IP/ TP are inaccessible, where features prevent direct measurement of points on the curve itself
Class test
Identify the various elements and purpose of a transition curve. Elements: super elevation, length of curve, shift, tangent length, offsets
Explain the use of Global Positioning Systems (GPS) for surveying and setting out. Explain the use of Geographical Information Systems (GIS) for updating plans and identifying developments in relation to existing features.
Explain the use of the following:
EDMTheodoliteTotal station.Rotating laser for alignment and to control reduce level of exacation.Pipe laser
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