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Q. Grouting in segmental linings in tunnels?
Grouting is typically carried out under pressure in segmental linings at the time of tunnel construction due to the below reasons:
(i) It helps in uniform transfer of ground pressure to the linings.
(ii) Grout serves to reduce the surface settlement.
(iii)Grout fills up the annulus of tunnel linings so as to it upholds the designed tunnel shapes.
(iv)The presence of grout aids in limiting groundwater seepage in the tunnels.
Q. Explain in details the various operations involved in Through Packing - conventional Maintenance by beater packing. Explain the various operations as per the Permanent Way
A clay stratum of 18 metres thickness was found above a sand stratum when a boring was made. The clay was consolidated under the present overburden pressure. The hydrostatic pressu
please discuss about trenches
4. Calculate the loose volume of material needed to fill in the trench as sketched below. The following information is also known: [7] o Length of trench = 250 m o Trench
Aim,materials or tools required,procedure for constructing english bond bricks
Schedule control is concerned with all of the following except: a. Influencing the factors which create schedule changes b. Determining that the schedule has changed c.
Sketches for English bond, Stretcher bond, Header bond, Flemish bond in first & second layer plan, elevation and 3 dimensional view of brick bond.
Define Surface Water Treatment Rule (SWTR) SWTR sets forth primary drinking water regulations requiring treatment of surface water supplies or groundwater supplies under the di
Q. Settlement due to Reduction in Volume of Soil? The weight of the structure causes reduction in volume of soil due to expulsion of pore water from the voids. This reduces the
how can i prepare a project on dam
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