Geocell or Cellular Confinement System (CCS) is a lightweight and flexible three-dimensional, expandable panels made from High Density Polyethylene (HDPE) strips which are ultrasonically bonded together to form an extremely strong configuration.
When infilled by compacted soil, a Cellular Confinement System (CCS) creates a new entity with enhanced mechanical and geotechnical properties. When pressure is applied to the soil contained in a CCS, it results in lateral stress on the perimeter of the cell wall. The three-dimensional confinement area reduces the lateral movement of soil particles.
On the jobsite, all sections of the geocell are fastened together and placed directly on the surface of the subsoil or placed on the geotextile covered on the roadbed surface. The sections are stretched and expanded. The geocell extended to cover several tens of meters may consist of hundreds of individual cells, depending on the size of the section and the whole area. They are then filled with a variety of filler materials such as soil, sand, aggregate or recycled materials, and then compacted using vibration compaction.
Overall CCS can create a hard mattress to distribute the load over a wider area, reduce settlement of soft soil, improve shear resistance and load carrying capacity and reduce distortion.
MiraCell® is a perforated cellular confinement system engineered from HDPE sections for maximum performance. MiraCell® is available in a number of depth and cell opening combinations. MiraCell® is supplied in a folded configuration that minimises transport costs to site yet can be readily expanded on site for very quick installation. MiraCell® has been perforated to ensure that each cell does not become water saturated during use.
The MiraCell® Cellular confinement system is one of the most advanced technologies available for solving challenging soil stability problems. It consists of an engineered, high strength network of interconnected cells that confines and stabilises soils. The MiraCell® system provides an innovative solution to soil stability problems in slope and channel protection, load support and earth retention applications. After the MiraCell® System is installed specific infill materials are used to backfill the cells and create a strong, permanent protection and stabilisation system. The MiraCell® Cellular System can be used for slope protection, channel protection, earth retention and load support.
MiraCell® provides advantages in the following applications:
Slope Protection: The cellular configuration allows for effective protection and resistance to downward migration of slope materials due to hydraulic flow events. The cell is very effective at retaining soils within the cell structure in applications of cut slopes and where the natural cut materials cannot support vegetated slopes. Imported soils placed within the cell create an improved environment for vegetative growth and as such soils are confined, there will be increased resistance against possible movement down the slope.
Channel Protection: The cellular configuration improves the hydraulic performance of conventional protection materials such as placed aggregate. By confinement of the aggregate within the cell an effective increase in the shear resistance of the placed aggregate is obtained. Channels that use MiraCell® are capable of larger flow events.
Base Stabilisation: The cellular confinement of base materials in a road application increases resistance to lateral displacement of conventional road base materials. The use of MiraCell ® reduces rutting of the pavement and can increase pavement life.
For more information please refer to the Technical Document located on the right.
Miracell® – Brunei Highway
Part of existing Shot Crete wall along Airport Highway collapsed due to soil erosion underneath the concreted surface. Surface water runoff from the adjoining hill and water infiltration has caused gradual removal of soil through the cracks in concreted surface until it failed.View More Case Studies
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