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WELL FOUNDATION RESTING ON SLOPPING BED ROCK
| 题名： | WELL FOUNDATION RESTING ON SLOPPING BED ROCK |
| 正文语种： | 英文 |
| 作者： | SAN JIB KONAR; K P ABRAHAM |
| 作者单位： | Former Technical Manager, Gammon India Limited; Former Chief Engineer, CPWD |
| 关键词： | strata；signature；well；innovation；bridge；install；scribe；rock；tolerance；profile |
| 摘要： | The design and construction of well foundations for the Signature Bridge, Delhi was a major challenge. At many locations the well foundations had to be founded on rock strata with a steeply dipping profile. The sloping rock strata affects both the sinking of the well and its proper seating on the bed rock. This paper describes the challenges faced during the design and construction of well foundations for the cable-stayed bridge at Wazirabad, Delhi which is an unsymmetrical Cable Stayed Bridge with inclined bow-shaped steel pylon. Many technical innovations were adopted in overcoming the challenges in installing and seating the well on a dipping bed rock profile. The solutions adopted for sinking the well within the permitted tolerance of tilt & shift and for seating the well foundation on the slopping bed rock strata are described. Micro piles installed through the well steining to avoid tilt during well sinking and the shear key provided in the bottom plug to prevent lateral movement of well foundation are elaborated |
| 出版年： | 2019 |
| 期刊名称： | Indian Highways |
| 卷： | 47 |
| 期： | 11 |
| 页码： | 30-37 |
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