• Home
  • Download PDF
  • Order CD-ROM
  • Order in Print
APPENDIX  III SAMPLE SURVEY FIELD NOTES
APPENDIX III - CONTINUED - 14070_465

Engineering Aid 1 - Advanced Structural engineering guide book
Page Navigation
  433    434    435    436    437  438  439    440    441    442    443  
Figure AIII-2.—Index. The set of horizontal angle control notes shown in Differential  leveling  notes  are  shown  in  figure figure  AIII-8  indicates  that  the  instrument  was  first  set up over station 0 + 00 and indexed on point No. 1. The horizontal angle (to the right) to PI No. 1 was then turned, as well as the horizontal angle to a church steeple. This locates the traverse and ties it to a point that will not be disturbed The instrument was then moved to PI No. 1 and the deflection angle between 0 + 00 and PI No. 2 was turned (twice), making sure that the angle was  recorded  with  its  proper  direction:  right  (R).  The instrument  was  then  moved  to  PI  No.  2  and  the procedures   repeated ‘The set of horizontal taping notes in figure AIII-9 shows the proper way to tape and record distances between points. The line in question is taped in both directions,  showing  each  distance  and  the  mean distance. The mean distance must be within 1 in 5,000, or  third-order  accuracy.  A  good  complete  sketch  is required. AIII-10. When making the page check do not add the foresight for station 0 + 00, as it is a side shot. Also, note that the stadia distance to 0 + 00 has been omitted for the same reason. When making your sketch, you do not need to show the backsight and foresight distances on the sketch-only on the traverse points, and so forth, normally found on a sketch. Horizontal  curve  notes  (fig.  AIII-11)  should  include all the curve data plus the deflection angles that are to be turned during the layout of the curve. The sketch should be as shown here. All stations that were staked out should be shown and labeled on the sketch. Profile  and  cross-section  level  notes  (fig.  AIII-12) are best recorded from the bottom to the top of the page. The left-hand side of the notes should contain columns for  stations,  backsight  (+),  height  of  instrument  (HI), foresight (-), and elevations. The right side, as shown, has left, center-line, and right columns. The top number AIII-2







Western Governors University

Privacy Statement
Press Release
Contact

© Copyright Integrated Publishing, Inc.. All Rights Reserved. Design by Strategico.