subject
Engineering, 11.02.2020 22:25 Edith21

The attached article from the San Francisco Chronicle, January 27, 1996, describes very serious problems of subsidence, water supply, and environmental pollution that exist today in Mexico City. A stratum of very soft, very high water content clay is the source of most of the settlements that accompanies the pumping of water from the underlying aquifer systems. The clay stratum thickness averaged 24 m (79 ft) in 1936, and had an average water content (w) of 356 %. The soil solids have a specific gravity (G_s) of 2.65. The average settlement of 6.7 m (22 ft) during the 60 year period referred to in the newspaper article has been uniform across the city. Thus, it can be reasonably assumed that all of the clay compression has resulted from one-dimensional consolidation: that is, all the movements have been in the vertical direction. The Mexico City clay is fully saturated (S_r = 100%). What was the average water content of the clay stratum in 1996?

ansver
Answers: 2

Another question on Engineering

question
Engineering, 04.07.2019 18:10
The higher the astm grain-size number, the coarser the grain is. a)-true b)-false
Answers: 3
question
Engineering, 04.07.2019 18:20
Steam enters a converging nozzle at 3.0 mpa and 500°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent
Answers: 2
question
Engineering, 04.07.2019 19:10
In general, how do thermosetting plastics compare to thermoplastics in mechanical and physical properties?
Answers: 3
question
Engineering, 04.07.2019 19:10
Apressure vessel with an r/t 20 cannot be treated as thin walled vessel. a)-trune b)- false
Answers: 3
You know the right answer?
The attached article from the San Francisco Chronicle, January 27, 1996, describes very serious prob...
Questions
question
Physics, 01.08.2019 05:30
question
Mathematics, 01.08.2019 05:30