The document contains field notes from a leveling and tachometric surveying exercise. It includes:
- Leveling readings taken along a route to determine reduced levels at stations.
- Tachometric staff readings taken from an instrument set up to survey cross sections of a bridge and sections upstream and downstream.
- Horizontal distances, vertical distances, and reduced levels were recorded at points along the cross sections.
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Bridge site survey 02
1. MADAN ASHRIT MEMORIAL TECHNICAL SCHOOL
FLY LEVEL FIELD BOOK
SURVEY CAMP – 2017
Observer:- Suman Jyoti Date:- 2017-Dec-05
Booker:- Bishnu p. Bhandari Location:- NEA-Kharipati, Bhaktapur
Station Distance BS FS Rise Fall RL Remarks
BS FS Total T M B T M B
B.M 4.0 ------ -------- 0.280 0.300 0.320 ---------- --------- ---------- --------- --------- 1285.000 B.M
01 8.5 3.0 7.0 1.235 1.192 1.150 0.890 0.875 0.860 --------- 1.175 1283.825
02 8.8 7.6 16.1 1.370 1.326 1.282 0.462 1.424 1.386 --------- 0.232 1283.593
03 7.6 7.3 16.1 1.248 1.210 1.172 1.436 1.308 1.272 0.018 --------- 1283.611
04 5.7 8.4 16.0 1.302 1.273 1.245 1.106 1.064 1.022 0.146 -------- 1283.757
Setup A ---- 6.0 12.7 ---------- --------- ---------- 1.400 1.370 1.340 --------- 0.097 1283.660 Setup A
Setup A 5.3 ------ -------- 1.393 1.366 1.340 ---------- --------- ---------- ---------- --------- 1283.660 Setup A
01 8.5 5.9 11.2 1.499 1.456 1.414 1.340 1.310 1.281 0.056 --------- 1283.716
02 9.8 7.9 16.4 1.452 1.403 1.354 1.324 1.284 1.245 0.172 --------- 1283.888
03 9.4 9.2 19.0 0.818 0.771 0.724 1.197 1.151 1.105 0.252 --------- 1284.140
B.M ---- 8.3 17.7 ---------- --------- ---------- 0.416 0.457 0.499 1.228 --------- 1285.008 B.M
Now,
Total distance =131.12 m
Error = 0.008 m
Precision=25√k = 25√0.01312 = 9.05 mm
Surveyed by:- Suman Jyoti Computed by:- Suman Jyoti Checked By:-
2. MADAN ASHRIT MEMORIAL TECHNICAL SCHOOL
FLY LEVEL FIELD BOOK
SURVEY CAMP – 2017
Observer:- Suman Jyoti Date:- 2017-Dec-05
Booker:- Bishnu p. Bhandari Location:- NEA-Kharipati, Bhaktapur
Reciprocal Levelling Field Book
At Setup 1
Station A
Top = 1.134 m
Middle = 1.290 m
Bottom = 1.267 m
Mean readings(𝑀𝐴 ) =1.290 m
Station B
Top = 1.789 m
Middle = 1.6985 m
Bottom =1.608 m
Mean readings(𝑀 𝐵 )= 1.6985 m
𝒉 𝒂= 𝑴 𝑨 - 𝑴 𝑩 = -0.4085 m
At Setup 2
Station B
Top = 1.225 m
Middle = 1.145 m
Bottom = 1.065 m
Mean readings(𝑀𝐴 ) =1.145 m
Station A
Top = 1.566 m
Middle = 1.552 m
Bottom =1.538 m
Mean readings(𝑀 𝐵 )= 1.552 m
𝒉 𝒃= 𝑴 𝑩 - 𝑴 𝑨 = -0.407 m
Mean height difference (H) =
ℎ 𝑎+ℎ 𝑏
2
= −
0.4085+0.407
2
= −0.40775m
Thus, R.L of point B = R.L of A – H = 1283.66 – 0.40775 = 1283.252 m
Surveyed by:- Suman Jyoti
3. MADAN ASHRIT MEMORIAL TECHNICAL SCHOOL
FLY LEVEL FIELD BOOK
SURVEY CAMP – 2017
Observer:- Suman Jyoti Date:- 2017-Dec-05
Booker:- Suman Jyoti Location:- NEA-Kharipati, Bhaktapur
1. R.L transfer from A to C
Station Distance BS FS Rise Fall RL Remarks
BS FS Total T M B T M B
A 3.6 ------- -------- 1.364 1.346 1.328 ---------- --------- ---------- --------- --------- 1283.660
C ---- 5.0 5.6 ---------- --------- ---------- 1.000 0.975 0.950 0.371 --------- 1284.031
1. R.L transfer from C to A
Station Distance BS FS Rise Fall RL Remarks
BS FS Total T M B T M B
C 4.3 ------- -------- 1.000 0.978 0.957 ---------- --------- ---------- --------- --------- 1284.031
A ---- 4.0 8.3 ---------- --------- ---------- 1.370 1.350 1.330 --------- 0.372 1283.659
R.L transfer from B to D
Station Distance BS FS Rise Fall RL Remarks
BS FS Total T M B T M B
B 3.4 ------- -------- 0.430 0.413 0.396 ---------- --------- ---------- --------- --------- 1283.252
D ---- 5.3 8.7 ---------- --------- ---------- 0.539 0.513 0.486 --------- 0.100 1283.152
1. R.L transfer from D to B
Station Distance BS FS Rise Fall RL Remarks
BS FS Total T M B T M B
D 4.8 ------- -------- 0.682 0.657 0.634 ---------- --------- ---------- --------- --------- 1283.152
B ---- 5.8 10.6 ---------- --------- ---------- 0.586 0.557 0.528 0.100 --------- 1283.252
Surveyed by:- Suman Jyoti Computed by:- Suman Jyoti Checked By:-
4. MADAN ASHRIT MEMORIAL TECHNICAL SCHOOL
Kageshwori Manahara, Kathmandu
Tachometric Surveying Field Book
SURVEY CAMP – 2017
Observer:- Suman Jyoti Date:- 2017-Dec-05
Booker:- Bishnu p. Bhandari
Instrument at:- A Height of Instrument: 1.953m
Location:- NEA-Kharipati, Bhaktapur
Zero set at:- C
Staff Point HCR VCR Stadia readings Horz.
Distance
Vertical
Distance
R.L Sketch
Top Mid Bot
From X-section of Bridge Alignment A - B
Road Edge 271°50'40'' 93°10'10'' 1.023 1.005 0.978 04.5 -0.248 1284.36 R.L of station A =1283.66m
Ground Level 102°00''10' 93°10''20' 1.797 1.789 1.782 01.5 -0.305
River Bank 103°28''30' 99°57''30' 2.927 2.916 2.906 02.1 -0.357
N.W.L 102°09''50' 99°57''10' 2.969 2.948 2.927 04.2 -0.714
Deepest Point 101°59''10' 99°57''10' 2.775 2.752 2.730 04.5 -0.776 1282.085
N.W.L 096°25''20' 97°48''00' 2.284 2.251 2.219 06.5 -0.874
River Bank 091°30''20' 97°11''00' 1.648 1.597 1.547 10.1 -1.253
Highest Point 092°57''10' 92°23''00' 1.340 1.275 1.210 13.0 -0.540
10 m upstream X- Section
Highest Point 197°53''00' 093°22''30' 0.750 0.699 0.648 10.2 -0.599
Road Edge 182°29''30' 094°15''00' 0.660 0.615 0.570 9.0 -0.665
River Bank 173°27''20' 094°21''40' 2.660 2.615 2.570 9.0 -0.682
Deepest Point 162°38''20' 094°21''50' 2.810 2.765 2.720 9.0 -0.682
River Bank 149°23''50' 093°15''40' 2.830 2.781 2.732 9.8 -0.556
Highest Point 128°50''50' 092°01''20' 1.450 1.385 1.320 13.0 -0.458
Highest Point 183°53''00' 091°47''50' 0.925 0.790 0.655 27.0 -0.846
BP 169°58''30' 094°45''40' 1.450 1.329 1.208 24.2 -2.001
Deepest Point 166°13''50' 094°46''00' 1.640 1.520 1.400 24.0 -1.987
R.B.P 162°38''30' 091°21''00' 2.940 2.823 2.706 23.4 -0.551
Highest Point 151°12''10' 091°23''40' 1.456 1.334 1.212 24.4 -0.593
Surveyed by:- Suman Jyoti Computed by:- Suman Jyoti Checked By:-
5. MADAN ASHRIT MEMORIAL TECHNICAL SCHOOL
Kageshwori Manahara, Kathmandu
Tachometric Surveying Field Book
SURVEY CAMP – 2017
Observer:- Suman Jyoti Date:- 2017-Dec-05
Booker:- Bishnu p. Bhandari
Instrument at:- Height of Instrument:
Location:- NEA-Kharipati, Bhaktapur
Zero set at:-
Staff Point HCR VCR Stadia readings Horz.
Distance
Vertical
Distance
Remarks Sketch
Top Mid Bot
10 m downstream X- Section
Road Edge 345°35''30' 088°55''40' 1.300 1.240 1.180 12.0 0.217
Bridge Corner 001°30''00' 088°30''50' 1.326 1.259 1.192 13.4 0.347
River Bank 033°09''30' 100°31''20' 1.900 1.850 1.800 10.0 -1.795
Deepest Point 038°39''10' 108°35''00' 1.640 1.584 1.528 11.2 -3.383
River Bank 050°01''50' 103°40''40' 0.870 0.805 0.740 13.0 -2.986
Highest Point 064°54''10' 084°15''10' 2.720 2.655 2.590 13.0 4.993 1287.951
Surveyed by:- Suman Jyoti Computed by:- Suman Jyoti Checked By:-