Surveying

Project Brief:
Part 1: Vertical control

As part of the pre-design information required for the re-development of the K- block within the University of South Wales’s Treforest campus, some surveying activities are needed to be implemented around the development site. The survey activities involve a closed levelling survey, where reduced levels are required for various observation/stake points as indicated below and shown in Appendix 1.
Point A – Top of drain cover 1 Point B – Top of RC wall Point C – Top of drain cover 2 Point D – Top of pavement Point E – Top of bottom stairs Point F – Top of drain cover 3 Point G – Top of drain cover 4 Point H – Top of corner kerb Point I – Top of drain cover 5

The reduced level for the Temporary benchmark (TBM) was identified as 69.650m.

⦁ Using the rise and fall method sheet in Appendix 2, conduct a levelling survey of the identified observation/stake points around the development site (Refer to practical survey Risk Assessment in Appendix 4).
⦁ Record the data obtained from the various line of sights (intermediate sights and fore sights) in your booking sheet.
⦁ Evaluate the Reduced Levels (RL) on the booking sheet and carry out the mathematical check.
⦁ Verify the accuracy of the levelling survey and comment accordingly.
⦁ Produce a sketch of the vertical section along the line of levelling survey and explain the process/procedures you have taken to accurately carry out the levelling survey (Note: the sketch should not be hand-drawn but produced with applications such as CAD, Excel etc.).