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Q. Differences between pipe jacking and micro-tunnelling?
Pipe jacking is a general scheme of installation of pipes with a tunnelling shield in front and the pipes are jacked from a jacking pit toa receiving pit. Tunnelling shield for pipe jacking can be mechanical and electrical equipment for conducting the excavation work or itcould be a manual shield for workers going inside the shield to do manual excavation. For microtunneling, it is a type of pipe jacking of small sized non-man-entry pipes that are remotely controlled. Generally there are two general kinds of micro-tunnelling machines:
(ii) Pressurised slurry
Similar to Pressurised slurry TBM, excavated material is transported from excavation face to surface suspended in aslurry.
(iii)Auger machine
Excavated material is transported from excavation face to drive pit by a cased screw auger.
Q. Show the Settlement due to Vibration? The foundation resting on cohesionless soil and subjected to vibrations will result in settlements of higher magnitude. In sandy soil
what is the type of slope protection that use rocks and put cements between those rocks??the concept is same as brick layer
are u familiar with elfen software?
State the procedure of prestressing When these wires cool down, concrete is poured in the moulds in which these tendons are provided in a stretched condition. Using this proces
A rectangular concrete beam is subjected to a factored design shear force of 200 kips. For the beam shown below, determine the required stirrup size and spacing requirement. H = 3
Construction and working of calomel electrode
Q. What are basic types of elastomeric bearings? Three basic types of elastomeric bearings are used. 1. Plain elastomeric pads 2. Steel reinforced elastomeric pads 3.
Determine the Basic Concepts of Prestressing In the year 1904, Freyssinet tried to introduce prestresses in concrete to resist stresses developed due to external loads. Later,
Question Is it necessary joints of concrete kerbs be in line with joints in concrete carriageway ? Answer In regular practice, joints are provided in road kerbs to ca
Compass surveying
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