A Handbook on Civil Engineering - Illustrated Formulae & Key Theory Concepts

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GLASS FIBER REINFORCED CONCRETE

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Recording Measurements for Earth Levelling Work

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Level Books: In case of levelling operations and earthwork, measurements are required to be recorded in level books in addition to Measurement Books. The Level Books should be numbered,accounted for and handled like Measurement Books. Preparatory Works: Before starting the earth work, following steps should be taken : (1) Original ground levels should be recorded in the Level Book in the presence of the contractor or his authorized representative, and should be signed by him and the Department Officer who records the levels. All the local mounds and depressions should be indicated clearly in the drawing and the field Level Book and should be checked by the Assistant Engineer/Executive Engineer before the levelling work is started. (2) A suitable baseline should be fixed with permanent masonry pillars at distances not exceeding 150 meters to provide a permanent reference line for facilitating check work. The base line (s) should be entered in the Level Book with co-ordinates. These bas...
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