8/10/2019 Topografie lucrarea 8

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Technical University Gh. Asachi Iasi

Faculty of Civil Engineering and Building Services

Assignment no.8Leveling Methods

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8/10/2019 Topografie lucrarea 8

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Technical University Gh. Asachi Iasi

Faculty of Civil Engineering and Building Services

Leveling methods

"eveling is co#$leting the $oli#etric %or&s the force of relief giving us a co#$lete i#agine of the earth

surface that is re$resented on a $lane.

A$$lication the#e'In this %or& %ill re$resent the leveling fet a earth surface (y geo#etric leveling co#(ined %ith the

#ethod of the cross)section. *ere as&ed for the deter#ination of the elevation of the $oint dra%ing u$ the

longitudinal $rofile of the traverse a+es ,- ,.

Dates:

The elevation of the su$$ort of the su$er (anch #a&es ,- , to the ori/ontal distances #easured

directly fro# the filed (et%een the $oints of the traverse and the cross)section ,- ,.

The application will consists of:

0eter#ination of the differences in elevations (et%een the traverse $oints

0eter#ination of the clouseing errors on different in elevations and their co#$ensations0eter#ination of the elevations of the traverse for deter#ination of the elevation of the $oints for thelongitudinal $rofile

0ra%ing u$ the longitudinal $rofile of the a+es having the land scale 121333 and the elevation scale 12133

0ra%ing u$ the transversal $rofile %ith the sa#e scales*e %ill #odify fro# the ta(le the elevation of the (anch #ar&s as' 4,5 4,

dat6 3.111 7 and "3inter#.

"3inter#.6 3.1117

R5

R6

S1

S2

S3

S4

S5

542

546

550

554

558

562

545

541

549

553

557

561 560

556

552

548

544

540 539

543

547

551

555

559

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8/10/2019 Topografie lucrarea 8

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Technical University Gh. Asachi Iasi

Faculty of Civil Engineering and Building Services

Determination of the differences in elevations between the traverse points

Station

Point

Aimed

Point

Horizontal

Distance

(m) d

!eading on the rod

(mm) L"levation

# (m)

$ar%

Point&ac% 'nterm ront

S1

!* + ,-.- + /001234 !*

// **10/ + + /.-3 /04*4**8! 98.1: ) 1;. ) 1;.8

/- + ,0 + +

/. 021*- + + //0

9=1 ) 31:3. ) 1;3.:88!

89=

8/10/2019 Topografie lucrarea 8

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Technical University Gh. Asachi Iasi

Faculty of Civil Engineering and Building Services

"i&e %e did in the $ast %or&= the level diferents (et%een : $oints= I case of the leveling in the #iddle= it is

o(tained (y the diferents (et%een the reading on the #ira of the (ac& $oint and the reading on the #ira of thfront $oint= giving'

4,5 4,dat6 3.111>1

The results %ill (e noted in the ta(le= colu#n ;.

Determination of the closing errors on different in elevations and their compensations

*e #a&e the alge(raic su# of the $artial level different.

56

6

5

1i

iz 3.!3< 61.963.

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1