Three independent lines of levels are run from BM1 to BM2. Route A is 6 km long, route B is 4 km long and route C is 8 km long. By route A, BM2 is 82.27 m above BM1, by route B, BM2 is 82.40 m above BM1 and by route C, BM2 is 82.10 m above BM1. 1.  Compute the probable elevation of BM2 if the elevation of BM1 is 30.5 m.  a. 113.13 m        c. 113.45 m  b. 112.79 m         d. 113.06 m

Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Braja M. Das, Khaled Sobhan
Chapter15: Slope Stability
Section: Chapter Questions
Problem 15.28P
Question

Three independent lines of
levels are run from BM1 to BM2. Route A is 6
km long, route B is 4 km long and route C is 8
km long. By route A, BM2 is 82.27 m above
BM1, by route B, BM2 is 82.40 m above BM1
and by route C, BM2 is 82.10 m above BM1.

1.  Compute the probable elevation of BM2
if the elevation of BM1 is 30.5 m.


 a. 113.13 m        c. 113.45 m
 b. 112.79 m         d. 113.06 m

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