Specified Scale

         I.      Major traverse                :1:1000

      II.      Minor traverse                :1:500

Contour interval               : 0.5 m, im (for hill side)

  III.      Bridge Site Survey

Topographical map     :1:500
Contour interval          :1.00

Longitudinal-section
Horizontal scale        :1:500
Vertical scale             :1:100

Rivercross-section
Horizontal scale        :1:500
Vertical scale             : 1:100

IV.    Road Survey

Detail survey        :1:500

Longitudinal-section
Horizontal scale   :1:500
Vertical scale        :1:100

Cross-section
Horizontal scale   :1:200
Vertical scale        : 1:200 or 1:100

Maximum gradient                 :12% in 1 OOm

Radius of curve                      : 12 m (not less than it)

All these specifications are the minimum requirements. If we can do all these task accurately then these apply these requirements. It will still better for doing so but if we can’t do so our aim should be fulfilled at least these requirements. Thus there are not those limitations, beyond which are not required to improve while performing the specified job.

SPECIFICATION OF WORKS AND GIVEN DATA

The following technical specifications were carried out during the work.

a.     Number of station should be selected in such a way that at least one station is visible from one forward and one backward station.

b.     Number of station should be selected less as far as possible.

c.      The ratio of traverse leg should not more than twice of minimum traverse leg. (1:2)

d.     Two-way measurements of traverse legs were taken with in the permissible limit of 1:2000.

e.      The permissible angular error of sum of interior /exterior traverse angles should be as

Major traverse                        

Minor traverse                        

Bridge site Triangulation                  

f.       Bowditch’s Rule should do balancing of traverse.

g.     Major traverse stations should be selected in such a way that at least one if its legs should be common leg for the minor traverse .i.e. minor traverse is in major traverse.

h.     Fixation of major/minor traverse is done by consecutive coordinate method on perfectly drawn grid line.

i.       R.L of common Temporary Bench Mark (TBM) is found out by fly leveling from the B.M. The fly leveling should be done in two ways. The permissible error in leveling should not be greater than ±2.5’Jk. Where, k=distance in km. In this case only central reading should be taken should transfer the R.L of all the major traverse station.

j.       In minor traverse, tachometer and plane tabling should take the detailing.

k.     The selection of IP should be at least visible one forward and one backward from one IP.

l.       Establishing of control points forming well condition triangle on bridge site survey. Detailing of the area is 150 m upstream and about 100 m downstream from the axis of bridge were taken by tachometer.

m.  Reciprocal leveling and fly leveling should be done in road site and bridge site survey for checking.

n.     After computation of all fields’ observations, following specified scale should used for plotting:

TRANSPORT NECESSITY AT CAMP

For major and minor traverse, Transportation was not needed as it was done inside the NEA training center but for the bridge and road alignment, we had gone to Godawari at 7 am from Kharipati, so in that time we need a transportation so that we could easily accessible and all the equipments which was needed for survey were taken to Godawari.

EQUIPMENTS USED

Basically, we had practiced about all types of equipments that might be used in the field of survey. Some of them are mentioned below:

Ø THEODOLITE (DIGITAL AND ANALOG)

Ø LEVELING INSTRUMENT (AUTO LEVEL)

Ø COMPASS

Ø STAFFS (4M AND 5M)

Ø RANGING RODS

Ø PEGS

Ø ARROWS

Ø MEASURING TAPES (20M AND 50M)

Ø UMBRELLA

Ø KHURPA

Ø PLANE TABLE

Ø PLUMB-BOB

Ø PAINTS AND BRUSH

Ø ARROWS

TIME DURATION OF THE WORK

The survey camp is for 10 days, This much time is not sufficient for completing our whole work, if 2 or 3 more days will be available then we can complete our work.

DAILY SCHEDULE OF DIFFERENT ACTIVITIES

Project Title                   : Survey Camp 2005

Location                         : NEA Training Centre, Kharipati, Bhaktapur & Godawari, Lalit pur.

Duration                        : 14^th April to 23^rd April (10 days)

Daily routine

06:30 to 07:00               : Break fast.

07:00 to 11:30               : Survey work.

11:30 to 12:30               : Lunch (in rotation , without stopping work.)

12:30 to 19:30               : Survey work.

19:30 to 20:30               : Dinner

20:30 to 21:30               : Night class

21:30 to onward            : Calculations (till going to bed)

TEACHERS ALLOCATION AND SUPERVISION

During the survey camp our teachers located the area to be surveyed for major and minor traverse, road and bridge survey and detailing of the area. During the work, the teacher solve each and every problem, and they were came to see us whether we perform the work or not. Whenever we are in confused they solve it and we were success to complete our work.

Teachers and Field Instructor                                       Subordinating Staffs

Mr. Shova Kant Dev ( Asso. Prof., P.U.)             Mr. Krishna Bahadur Bhadel 

Mr. Jaya Ram Joshi (Assistant Professor, P.U.) Mr. Pradeep Thapa

Organized By                                                              Coordinator
Survey Instruction Committee                                       Mr. Shova Kant Dcv.

Surveying Department

Department of Civil Engineering

Nepal Engineering College

Duwakot, Changunarayan V.D. C., Bhaktapur

GROUP DIVISION AMONG STUDENTS

There were nine groups and four students in each group. Each group works separately. They are named as A, B, C, D, E, G, H, I and J. We belong to group (I).

GROUP MEMBERS

S.N.	NAME	ROLL NO.
1.	SHIVA RAM DHAKAL	02-137
2.	NABIN RAJ BHANDARI	02-109
3.	SURESH ADHIKARI	02-134
4.	NABI BASNET	02-108
5.	MD. FIROZ	02-143

WORKING SCHEDULE FOR GROUP I

S.N.	DATE	DAILY FIELD WORK
j	4th April	Reccee and Pegging Day
2.	15th April	Major traversing Day.
3.	l6th April	Road Alignment, Pegging Survey Day.
4	17th April	Road Alignment and detailing Survey.
5	18th April	River, Bridge Site and detailing Survey.
6	19th April	Major Traversing Day.
7	20th April	Leveling Day.
8	21St April	Minor Traverse and Detailing Day.
9	22nd April	Minor Traverse and Detailing Day.
10.	23nd April	Curve setting ,Two peg test, Evaluation Day

Ø 14^th  April, Reccee day: - Since it was the first day of our project work. In that day our teachers gave us a brief explanation about the survey work. Then, we made the reccee of the whole camp area three times in order to make the traverse legs with in 1:2 ratio of the minimum to maximum traverse distance. After that we started pegging to cover the whole area for major traverse as far as possible. We also recce for the minor traverse of the given area and pegging were also done. Some of legs, two-way tape measurements of the control points were also noted.

Ø 15^th April, Major traversing day: - The chaining of all the traverse legs were measured as Two-way measurement. Then, we started to measure the angles and distances of the traverse with the help of Theodolite. For that we take the two-sets (Face-Left and Face- Right) of reading from each station.

Ø l6^th April, 17th April, Road alignment day: - On that day we first aligned the road on given route with the help of abney level and compass and pegging was done for control points simultaneously. Some curve settings were also done on that day. The cross-sections were taken at every 15 meters intervals and at the curve setting also. The chainage of the road aligned was also noted. After finishing the road alignment work, we immediately started bridge site surveying by using different methodologies.

Ø l8^th April, Bridge site surveying day:- The triangulation, Profile leveling of river, Lsection (U/S 150m & D/S lOOm @ 25m), X-section, detailing, high flood level, the river bank was noted on that day.

Ø 19^th April, Major traversing day: - the remaining work on 15th April, angle and distance measurements were continued on that day.

Ø 2O^th April, Leveling day: - On that day the fly leveling were done to transfer the given R.L. at Krishna Mandir to the T.B.M. inside the campus area near the main gate. To do that first two-peg test was done to check the accuracy of the leveling instrument. After transferring the R.L. to the T.B.M. then, the R.L. was transferred to the control points of the major traverse as well as to the control points of the minor traverse.

Ø 2l^st April, 22^nd April, Minor traversing and leveling day: - On that day taping of the minor traverse was done as done that for major traverse. In the given area loop was made to cover that area, which did not covered from the major and minor control points. Then the angular and length measurements were done for minor traverse with the help of Theodolite. For that only the single set of reading was taken. And Simultaneously the R.L. was transferred to the all stations. On that day, detailing was done by using theodolite. After setting the theodolite at any major or minor station horizontal zero was set in one of the traverse leg and required vertical angle, horizontal angle & three wire reading were taken.

Ø 23^rd April, Evaluation day: - In this day different curves are setted, two peg tests is done, And lastly Evaluation of group and individual are done by teachers with the help of viva.

PLANNING AND ORGANIZING SURVEY CAMP

This year, the ten days long the third year students of Nepal Engineering College undertook survey camp. The camping venue was Nepal Electricity Authority Training Center, Kharipati, Bhaktapur and Godawari sites for bridges and road survey.

This is the survey report of the works performed by the group “I” having members of five. The report briefly describes the working procedures and techniques used by the group during the camp. It also contained observations and calculations, methods of adjustments of error, main problem faced and their solutions.

For major traverse and detailing, compound of the NEA Training Center was divided into three areas and each survey group assigned to one area. The leveling was done from NTC Training Centre to about l400m towards Nagarkot. Bridge site survey was performed in the Godawari sites along with the road survey.