Page 23 - ebook_soil engineering practical workbook_15112021
P. 23
Three types of theodolite readings are vernier, optic and digital. Operation
of this instrument known as temporary set-up should be done before take a
reading. This operation included setting up the theodolite, levelling or
centering and focusing. In survey, traverse is defined as the field operation
of measuring the lengths and directions of a series of straight lines
connecting a series of points on the earth. Each of these straight lines is
called a traverse leg, and each point is called a traverse station.
2.3 Apparatus/Equipments
- Theodolite
- Plumbob
- Three ranging rods
- Prismatic compass
- Tape
15 | Soil Engineering Practical Workbook
