F-1 Site Layout

Question 1

Grading

Answer 1

surface of the ground on jobsite

• indicated by abbreviation NG
• finished grade marked by FG

*also means slope eg: 2%grade means earth drops 2mm for every 100mm

Question 2

Benchmark

Answer 2

randomly assigned and elevation of +100 meters

• points of jobsite higher then this benchmark are above 100m
• points lower are lower then 100 m

Question 3

Gridlines or Grid stakes

Answer 3

on sites where grading is required series of gridlines are set up to determine where soil must be removed or added
- levelled in one direction and numbered in the other

Question 4

Plumb down

Answer 4

measuring horizontal distances then using plumb bob to to set mark for stake

Question 5

Pythagorean theorem

Answer 5

A2 + b2 = c2 measure lengths then use this formula to find distances

Question 6

Site Layout method

Answer 6

1. using setbacks determine two front corners of building
2. from one front corner run tape length of building, then from other corner run tape diagonally tot hat point
3. where the two tapes intersect is third corner
4. measure both missing sides to find the fourth corner. use two tapes, one from third corner from back and second from the front corner mark where they intersect.
5. measure diagonals and make sure its square.