Q1 (a) Q1(b) RL TBM A RL TBM B RL TBM A RL TBM B AAA.AAA ВBB.BB AAA.AAA ВВB.ВB 135.975 134.665 135.475 134.165 Q1. Table Ql shows the levelling data obtained from field observations between two temporary benchmarks namely TBM 1 and TBM 2, respectively. Where, the total levelling distance between TBM 1 and TBM 2 is 250 metres. As a junior site civil engineer at the construction site, you have been assigned by a senior site civil engineer to finalise and evaluate the levelling data to ensure the levelling work complies with the levelling standard and procedures. Table Q1 Intermediate Backsight Foresight Remarks Sight 1.592 TBM 1 RL= AAA.AAA m 1.379 Point 1 1.384 Point 2 1.406 Point 3 1.675 2.052 CP1 1.354 1.704 СР2 1.320 0.907 CP3 0.940 1.315 СР4 0.832 1.507 CP5 -2.938 Soffit 1 -2.833 Soffit 2 -2.717 Soffit 3 1.546 TBM 2 RL=BBB.BBB m a) Finalise the levelling calculation using rise and fall method, performed arithmetic check, accuracy check, levelling misclosure and final reduced level for all observed points. | b) For verification purpose you are required to re-calculate the reduced level using height of plain collimation (HPC) method, performed arithmetic check, accuracy check, levelling misclosure and final reduced level for all observed points.

An inverse method of leveling is executed between two existing concrete structures and across a concrete wall located midway between the two structures. All rod readings, as indicated in the sketch, were taken with the rod held upside down. From the data portrayed, if the elevation of A (bottom of the concrete beam of the first structure) is 240.05 m., the elevation of the bottom of the concrete beam of the second structure (indicated as C) should be

Q1. Table Q1 shows the levelling data obtained from field observations between two temporary benchmarks namely TBM 1 and TBM 2, respectively. Where, the total levelling distance between TBM 1 and TBM 2 is 250 metres. As a junior site civil engineer at the construction site, you have been assigned by a senior site civil engineer to finalise and evaluate the levelling data to ensure the levelling work complies with the levelling standard and procedures. Table Q1 Intermediate Backsight Foresight Remarks Sight 1.592 ТВМ 1 RL3 AAА.AAA m 1.675 2.052 СР1 1.354 1.704 СР2 1.320 0.907 СР3 1.379 Point 1 1.384 Point 2 1.406 Point 3 0.940 1.315 СР4 0.832 1.507 СР5 -2.938 Soffit 1 -2.833 Soffit 2 -2.717 Soffit 3 1.546 ТВМ 2 RL-BВВ.BBB m a) Finalise the levelling calculation using rise and fall method, performed arithmetic check, accuracy check, levelling misclosure and final reduced level for all observed points. b) For verification purpose you are required to re-calculate the reduced level using…

I'S The following readings were taken with a level on a 5m staff in a levelling operation from points 1 to 12, (2.08, 1.625, 3.2, (1.67 and 2.74) CP, 218, (0.825 and 1.12) CP, 2.95, (1.35 and 2.55) CP, 4.05, (1.75 and 3.35) CP, 2.78, 3.27). Points 1 and 12 are a bench marks having elevations (210 m and 212.55m respectively. 1- Find elevation of all points by rise and fall method and apply appropriate check. 2-Determine the loop closure and adjust the calculated value of the elevations.