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Q. Differences between open shield and closed shield? Open shield type TBM refers to those providing lateral support only. They can be further classified into single shield and
Define categories of Spalls -underwater inspection of bridge? Spalls are classified as follows: i. Small spalls - up to 25 mm deep or approximately 150 mm in diameter. i
A retaining wall 12 metres high is proposed to hold sand. The values of void ratio and φ in the loose state are 0.63 and 30° whereas they are 0.42 and 40° in the dense state. Suppo
Define the Highlights of Critical Path Method A network analysis technique used to predict project duration by analyzing which sequence of activities has the least amount o
Change the model to take into account the variation in outdoor temperature for a "typical" day in the heating season based on the heat loss by the fabric and the heating of incomin
Sub-base for concrete carriageway - non-strength provider Essentially sub-base for a concrete carriageway is provided for the below reasons: (i) It provides aneven and smo
explain the construction while aligning roads on hilly areas
Common defects - bituminous roads: Cracks can be filled with a bitumen emulsion. Wide cracks can be filled with premix sand asphalt. If an overlay is to be laid on a cracke
Question Why are voids filled with lightweight infilling material in raft base of pumping stations ? Answer To decrease dead load and therefore to decrease settleme
What do you understand by Pressure line If we determine the locations of resultant force at various sections of a pre-stressed beam, as in Example, we can draw a curve showing
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