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GEOKON, INCORPORATED is a leader in pile testing instrumentation — both steel and concrete, driven or cast-in-place. Many important projects utilizing coffer dams and sheet piling have been instrumented, plus pilings on foundations of major buildings in cities throughout the world. The Petronas Twin Towers in Malaysia, among the tallest buildings in the world, uses GEOKON gages.

Learn more about our pile testing instrumentation.

Millennium Tower

Vienna, Austria

The Millennium Tower, at 202 m, is one of the tallest buildings in Europe. The structure is constructed on a preloaded piled raft foundation. The soil at the site was improved by vibrocompaction and the excavation was contained within a tieback diaphragm wall (12 dewatering wells lowered the high groundwater level from the adjacent Danube river).

The ground movements due to excavation, pumping and subsequent loading by the rising building were measured by an Extensometer installed close to vertical axis of the tower. The extensometer was fitted with 5 vibrating wire Displacement Transducers and connected to a Micro-10 Datalogger. The Extensometer Anchors were located at different levels between 26 m and 60 m depth.

A flatjack was inserted at the interface between each bored pile and the raft, and preloading was carried out using the raft and the weight of two sub-floors. The hydraulic pressure at 11 flatjacks was measured automatically during the loading cycles with vibrating wire Pressure Transducers and the Micro-10 datalogger.

Additionally, a central bored pile, located close to the extensometer, was instrumented with 12 vibrating wire Rebar Strain Meters, distributed in four arrays at approximately 2 m, 5 m, 8 m and 12 m depth, and connected to the datalogger to automatically determine the deformation of the pile at different levels with the preloading.

For additional information, please contact: Carlos Fischer | Scanrock, GmbH

Pile Test Project

Taiwan High Speed Rail

The Taiwan High Speed Rail is the main mode of mass transportation in Taiwan. The pile testing program prior to construction required Strain Gages and Load Cells, which were used to measure up to 4,200 ton loads.

For additional information, please contact:

David Chang | Davisson-Geokon Industrial Co. Ltd.

Dihwa Water Recycling Plant

Taipei, Taiwan

The Dihwa Water Recycling Plant, occupying 76,000 m², is one of the largest water Recycling Plant in Northern Taiwan. Completed in October 2003, the plant has the capacity to recycle 500,000 m³ of water per day. The construction, which started in January of 1999, required more than 1,450 foundation piles and included Rebar Strain MetersStrain GagesPiezometersDisplacement Transducers and Loads Cells.

For additional information, please contact:

David Chang | Davisson-Geokon Industrial Co. Ltd.