CIVIL ENGINEERING DEPARTMENT

TOPIC- SETTING OUT A SIMPLE CIRCULAR CURVE BY OFFSET FROM LONG CHORD.

SEMESTER-6^TH SUBJECT-LAND SURVEY-II BY

MR.BIKASH KUMAR DAS

(LAB.ASST.IN CIVIL ENGG. DEPT)

AY:2021-2022

THEORY-

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SIMPLE CIRCULAR CURVE

WHEN ACURVE CONSIST OF A SINGLE ARCH WITH A CONSTANT RADIUS CONNECTING THE TWO TANGENTS IS KNOWN AS SIMPLE CIRCULAR CURVE.

SETTING OUT OF SIMPLE CIRCULAR CURVR BY OFFSET METHOD IS 4 TYPES-

1-OFFSET FROM TANGENT

2-OFFSET FROM LONG CHORD

3-CHORDS PRODUCES

4-DEFLECTION ANGLE/RANKINES METHOD

2- OFFSET FROM LONG CHORD -:

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INSTRUMENT REQUIREDS

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1-CHAIN OR TAPE

2-CROSS-STAFF

3- RANGING RODS

4-PEG OR ARROWS

THANK YOU