Tags:Anchoring, Geocell, Pile foundation and Soil-structure interaction
Abstract:
With the advancement of portable quick install structures, there is an observed increase in demand for anchoring light structural foundations to natural grounds. For example, installation of floating fence needs pounding rods anchored to the existing subgrade at defined intervals. Even anchoring temporary portable foundations can leave permanent footprint on environment. Particularly, when the existing natural ground is soft, the structural footprint of the foundation anchors can interfere larger area requiring extra material to be shipped in which ultimately lead to increased carbon emission. Considering foundation design for floating fence on weak natural existing ground, such as thick layers of soft organic soil, long term stability of the structure becomes a challenge. In such scenario, the conventional design methodology either decreases the spacing of the pounding rods or increases the size of the rods, both resulting in more material. Anchoring system with natural soil and geocell reinforcement to improve foundation capacity could be a viable alternative innovative solution to the conventional design. The three-dimensional perforated geometry is specifically advantageous for its three-dimensional confinement and distributing stress over a wider area. Overwhelming stress related study on geocell has been on lateral stress distribution on application of vertical load. However, when it comes to anchoring rods, the dominating forces are lateral and dynamic, the wind load is an example. Building a structure reinforced with high modulus and high strength geocell, filled and compacted with naturally available granular material, plays a significant role in improving the design capacity for light structure foundations. Depending upon the design load capacity the quantity and size of required pounding rods can be significantly reduced or may not even be required at all. This new technology can avoid major impacts on life cycle cost.
Geocell-Reinforced Lateral Support for Anchoring Structural Foundations