Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Formation velocity
[ms-l]
Thickness
Density
[kg m-] [m]
Formation
Alluvium
1500
150
600
Shale
Sandstone
Limestone
2400
450
2700
2300
2500
600
900
300
600
3000
5400
4500
Salt
2200
Dolomite
2700
6000
reflection and which the weakest? At which inter-
faces does a change in phase occur? What does
this mean?
Transcribed Image Text:Formation velocity [ms-l] Thickness Density [kg m-] [m] Formation Alluvium 1500 150 600 Shale Sandstone Limestone 2400 450 2700 2300 2500 600 900 300 600 3000 5400 4500 Salt 2200 Dolomite 2700 6000 reflection and which the weakest? At which inter- faces does a change in phase occur? What does this mean?
11. (a) Calculate the minimum arrival times for seismic
reflections from each of the reflecting interfaces in
the following section. Consider the base of the lower-
most bed to be a reflector as well.
(b) What is the average velocity of the section for a
reflection from the base of the dolomite?
(c) Using the listed densities calculate the reflection
coefficient for each interface (except the base of
the dolomite). Which interface gives the strongest
Transcribed Image Text:11. (a) Calculate the minimum arrival times for seismic reflections from each of the reflecting interfaces in the following section. Consider the base of the lower- most bed to be a reflector as well. (b) What is the average velocity of the section for a reflection from the base of the dolomite? (c) Using the listed densities calculate the reflection coefficient for each interface (except the base of the dolomite). Which interface gives the strongest
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