CONSTRUCTION TECHNOLOGY OF CAST-IN-SITU PILES IN EXPRESS-WAY PROJECT FROM JEHANGIR-CHOWK T0 RAMBAGH

Civil Engineering

The present system of transportation in Srinagar City is highly inadequate, with the area covered by transportation being only 3% against 10%–14% in metro cities. A thorough survey was conducted and an Express-Way has been proposed from Jahangir Chowk to Rambagh along Airport Road which is being financed by Asian Development Bank (ADB). Srinagar city is located along the banks of river Jhelum, while studying geological history it is clearly understood that this area has been flooded often and hence the soil found is because of alluvial depositions of River Jhelum. Such alluvial deposits are consistently associated with matrix of highly decomposed organic silts/peat/trapped partially decomposed fibrous organic matter etc. Critically low soil bearing pressure is only found in alluvial soil (mud or silt), wet sand or poorly compacted fill. There are also rare cases of soils that have adequate bearing potential in dry weather, but which change to low bearing potential in wet weather. After a series of soil-exploration tests and as per the Codal-Design analysis of this prestigious project, it was found to provide a deep foundation because in these soils formed by alluvial deposition the bearing capacity was very less and one such type of foundation , pile foundation, was employed in this project .Furthermore no hard-strata was found beneath and hence the best possible solution was to use Friction Piles. Srinagar, the capital city of Jammu and Kashmir state of India also falls in the Zone-V of the BIS-code of Practice (IS-1893-2002) which makes it vulnerable to Seismic-Disasters and earthquakes and Friction Pile also takes that thing into consideration .In this paper we are going discuss about how piling of this project was done.

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