The Shard, London
Numerous challenges were encountered while constructing the tallest building in Western Europe’s skyline. Some of them being:
Project Area: The land area on which this 95 storey tower was planned, was much smaller than the area on which any building of similar scale has been built.
Location: The site was sandwiched between one of UK’s busiest stations, London Bridge Station and Guy’s Hospital. Also, the bus station on the doorstep of the site had to remain running. Thus, the project had to operate around the thousands of commuters using these facilities. Moreover, the narrow roads and large amounts of pedestrians made moving materials to and from the site a major challenge.
Existing Facilities: Large Victorian water mains …show more content…
The soil in the middle of excavation area is cut, leaving others to retain the deflection of diaphragm walls. This allows access to even farthest end without impeding the construction of struts and slabs. The dimension of the channel is determined by the space required by excavator and earth hauler. Also, the remaining soil should suffice the support required by diaphragm walls for deflection control. Thus, part A2 was completed using four vertical excavation stages of construction. Interference between material transportation and earth hauling was resolved by entrances in top slab of underpass and top slab of Part …show more content…
The scope of the project is to construct a six storey building using latest top down construction techniques, and develop all the levels under the basement. Later, a tunnel for the purpose of passage between new building and the store was also added to the scope. The tunnel was planned to be constructed 28m below the ground level into the london clay. The tunnel comprises of 5m connection tunnel along with 7.1m staging area. The construction work within the scope of the Harrods building had to be completed without interfering routine operations of the store. The construction material, plant and equipment had to use 1.5m wide and 2.0m high opening for entry or exit. As the construction was done during store hours noise and vibration was monitored and controlled strictly and most of the operations were done in confined spaces challenging the project in health and safety aspects. Congested roads of london added to the problems, resulting in only one access road (4.0m wide). Working hours for the project were limited. Harrods project faced many more challenges such as scope extended to save 15 weeks of construction time, using 28m long steel columns; accuracy in plan position to be achieved was within 10mm tolerance. All these challenges were overcome by Skanska Cementation 's proprietary CEMLOC™ system which was used to achieve such sensitive
Numerous challenges were encountered while constructing the tallest building in Western Europe’s skyline. Some of them being:
Project Area: The land area on which this 95 storey tower was planned, was much smaller than the area on which any building of similar scale has been built.
Location: The site was sandwiched between one of UK’s busiest stations, London Bridge Station and Guy’s Hospital. Also, the bus station on the doorstep of the site had to remain running. Thus, the project had to operate around the thousands of commuters using these facilities. Moreover, the narrow roads and large amounts of pedestrians made moving materials to and from the site a major challenge.
Existing Facilities: Large Victorian water mains …show more content…
The soil in the middle of excavation area is cut, leaving others to retain the deflection of diaphragm walls. This allows access to even farthest end without impeding the construction of struts and slabs. The dimension of the channel is determined by the space required by excavator and earth hauler. Also, the remaining soil should suffice the support required by diaphragm walls for deflection control. Thus, part A2 was completed using four vertical excavation stages of construction. Interference between material transportation and earth hauling was resolved by entrances in top slab of underpass and top slab of Part …show more content…
The scope of the project is to construct a six storey building using latest top down construction techniques, and develop all the levels under the basement. Later, a tunnel for the purpose of passage between new building and the store was also added to the scope. The tunnel was planned to be constructed 28m below the ground level into the london clay. The tunnel comprises of 5m connection tunnel along with 7.1m staging area. The construction work within the scope of the Harrods building had to be completed without interfering routine operations of the store. The construction material, plant and equipment had to use 1.5m wide and 2.0m high opening for entry or exit. As the construction was done during store hours noise and vibration was monitored and controlled strictly and most of the operations were done in confined spaces challenging the project in health and safety aspects. Congested roads of london added to the problems, resulting in only one access road (4.0m wide). Working hours for the project were limited. Harrods project faced many more challenges such as scope extended to save 15 weeks of construction time, using 28m long steel columns; accuracy in plan position to be achieved was within 10mm tolerance. All these challenges were overcome by Skanska Cementation 's proprietary CEMLOC™ system which was used to achieve such sensitive