Module Ten - Grades - Part One - NCCER Substation Slides

Module Ten - Grades - Part One - NCCER Substation Slides

1. Grades, Part One Module Ten – 22106-12

2. Objectives When you have completed this module, you will be able to do the following: 1. Explain the terms used in grade work. 2. Identify types of stakes and explain markings on grade stakes and benchmark (BM) stakes. 3. Identify equipment used by the operator to check stakes. 4. Explain different types of slopes and slope ratio. 5. Check horizontal and vertical distance of cut and fill slope stakes. 6. Check finish subgrade on a cross slope.

3. Performance Tasks Under the supervision of your instructor, you should be able to do the following: 1. Identify types of stakes and markings on stakes. 2. Check horizontal and vertical distances of cut and fill slope stakes. 3. Check finish subgrade on a cross slope.

4. Figure 1 – Grades

5. Figure 2 – Example of erosion

6. Figure 3 – Roadway profile sheet

7. Figure 4 – Silt fencing

8. Figure 5 – Side and front view of silt fencing

9. Figure 6 – Parts of a roadway

10. Figure 7 – Excavation of a roadway

11. Figure 8 – Foundation plan

12. Figure 9 – Excavation of a monolithic slab

13. Figure 10 – Typical use of batter boards

14. Figure 11 – Calculating a grade

15. Table 1 – General Stake Markings

16. Figure 12 – Grade stake

17. Table 2 – American Public Works Association ( APWA) Underground Color Codes

18. Figure 13 – Permanent benchmark

19. Figure 14 – Temporary benchmarks and guard stakes

20. Figure 15 – Stakes for rough grading

21. Figure 16 – Center line stake

22. Figure 17 – Plus station

23. Figure 18 – Edge of pavement stakes

24. Figure 19 – Slope stakes

25. Figure 20 – Offset stake

26. Figure 21 – Cut and fill (slope) stakes

27. Figure 22 – Cross-section of a fill

28. Figure 23 – Checking the fill grade

29. Figure 24 – Cross-section of a cut

30. Figure 25 – Ditch excavation

31. Figure 26 – Grader with GPS equipment

32. Figure 27 – Basic measuring equipment

33. Figure 28 – An automatic level

34. Figure 29 – Leveling rods

35. Figure 30 – Measuring horizontal distances

36. Figure 31 – Measuring horizontal distance across a slope

37. Figure 32 – Automatic level tripod

38. Figure 33 – Reading a leveling rod

39. Figure 34 – Using a leveling rod

40. Figure 35 – Using a leveling rod to calculate elevations

41. Figure 36 – Laser transmitter and receiver rod

42. Figure 37 – One-person operation

43. Figure 38 – Rotating beam laser instrument

44. Figure 39 – Rotating lasers sweep multiple sensors

45. Figure 40 – GPS surveying receiver

46. Figure 41 – Graphics of construction plan on GPS surveying equipment

47. Figure 42 – Pocket leveling rod

48. Figure 43 – Measuring a cut

49. Figure 44 – Checking the grade across a roadway

50. Figure 45 – Checking the grade with an automatic level

51. Supplemental Art

52. Course Map