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Question
What is main difference between direct circulation drilling and reverse circulation drilling?
Answer In straight circulation drilling and reverse circulation drilling, major difference in drilling system is related to direction of movement of drilling fluid. In direct circulation drilling, drilling fluid is circulated from drill stem and then flows up the annulus between outside of drill stem and borehole wall. Drilling fluid that carries drill cuttings flows to surface and subsequent settlement pits. Pumps are working to lift cuttings free fluid back to drill stem.
Q. Show the Overlays on concrete bridge deck? After years of servicing, some overlays can be applied on the top surface of bridges. Overlays on concrete bridge decks achieve th
Aplease provide tables for each design mix and also the, high early strengh.l thanks
how to go about the collimation method.
where we can overlap steel in columns if we use 50 or 60 bar diameter as overlap length.
Types of Cross-drainage Structures: The following are the types of cross-drainage structures : (a) Culverts, having waterway upto 6 m. (b) Minor Bridges, having waterwa
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State about the pre-tensioned concrete beam A pre-tensioned concrete beam, 200 mm wide and 300 mm deep, is prestressed by straight wires carrying an initial force of 150 kN at
Q. Show the Functions of diaphragm walls? The functions of diaphragm walls are as follows: (i) It is designed to maintain soils during the construction of underground
how can i prepare a project on dam
My team has to construct a swimming pool at the back of the house. It’s interior dimensions are 10M x 3M and 1M at the shallow end and 2.5M at the deep end. The walls and the bas
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