The New Austrian Tunneling Method (NATM), also known as the sequential excavation method, gained recognition during the tunneling operations in the Austrian Alps. The technique proved to be very useful in sophisticated and diversified geological conditions where forecasting of the ...
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Tunnel Boring Machine: Working of the Tunnel Construction Giant
A tunnel boring machine (TBM), also known as mole, is employed for the construction of tunnels in hard or soft rock strata. The cutting process utilizes the rotation of the cutterhead (geared with disc cutters) and the blade pressure for ...
Taj Mahal: Construction of its Invincible Foundation
The Taj Mahal is a perfectly symmetrical monument representing the finest architectural and artistic achievements through excellent craftsmanship and perfect harmony in the design. Its foundation, in particular, was a herculean task to build as in those days clayey soil ...
Atal Rohtang Tunnel: Construction of the World’s Longest Highway Tunnel at 10,000 feet
Atal tunnel (Rohtang) is a roadway tunnel constructed at an altitude of 3060 m above mean sea level, making it the highest highway tunnel in the world. At 9.02 km length, it is also the longest bi-directional single-tube roadway tunnel ...
How to Improve Soil Properties by Vacuum Preloading Method?
The vacuum preloading method uses atmospheric pressure as a temporary surcharge to accelerate soil settlement and improve its characteristics. The process involves the application of vacuum pressure into a separated soil mass to decrease atmospheric pressure and pore water pressure, ...
What to Do if Estimated Settlement of a Building Exceeds Allowable Limits?
If the estimated settlement of a building exceeds the allowable settlement, then the designer can choose the following methods to cope with the excessive settlement:i. Alter the structureii. Provide deep foundationiii. Change the foundationiv. Improve the characteristics of the soil ...
Slope Stabilization Methods: Classification and Construction
Civil and mining engineering projects usually include heavy demolition and excavation activities that lead to the formation of excavated rock slopes. It is essential to maintain the stability of these slopes till the end of the design life for the ...
How to Evaluate Liquefaction Potential of Soils in the Field?
The evaluation of the liquefaction potential of soils in seismic-prone region is essential for site selection, planning, and construction of structures. One can assess liquefaction potential through standard blasting tests, ground response analysis, laboratory tests, and expertise. The use of ...