Observational Method in Geotechnical works
Describe the rationales of Observational Method in geotechnical works?
Expert
Idea of Observational Method was first debated by Peck in the Rankine Lecture in 1969. The Observational Method is usually adopted in the geotechnical works in construction phase, though it is also possible in the design stage. In essence, in conforming design by engineers during the stage of planning, the design is based on the approach of over-conservative or most unfavourable conditions due to the lack of precise and actual site information.
During successive construction, with particular site information and condition available, the Observational Method is implemented in which the actual design is revised on the basis of conditions with instrumentation monitoring. If the results of monitoring shows that the performance of reviewed design approaches the limit of acceptable risk level, then it shall get reverted to the planned modification which is based on the unfavourable conditions and therefore, the risk level dropped back to original design. Else, the reviewed design shall remain and this results in reduction of the cost without comprising any safety of works.
Explain about the principle used in chain surveying and specify its limitations.
Write down the basic requirements of the fuel injection system of Diesel Engine.
State the working principle of an Impulse Turbine.
Explain EC engines with an example.
Explain Bentonite Slurry and Polymeric Slurry and which is good?
Write a brief notes on Prismatic compass and Surveyor’s compass.
Explain the stress corrosion of pre-stressing steel.
How do vortex-induced vibrations affect the stability of long bridges?
List the differences between Vapour Compression Refrigeration and Vapour Absorption Refrigeration system.
Write down the various instruments used for Levelling.
18,76,764
1958404 Asked
3,689
Active Tutors
1434015
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!