GeotecTM Biaxial geogrids are also made of macromolecule polymer by the process of being stretched out, formed into lamella, punched regularly and then longitudinal and transverse elongated, which have much higher longitudinal and transverse tensile strength, especially in its prophase. These structure can provide soil a perfect and efficient standing and diffusing chain system a chain moduli, which be used broadly to enable the permanent bearing capacity of roadbed.
GeotecTM Biaxial geogrids can be used to enhancement of permanent bearable toft including roads and railways embankment, slopes, tunnel, airfields, parks, docks and ground which cargo lays on and their main usage are as follows:
1.Enhance the bearing capacity of road foundation and extend the duration of roads.
2.Prevent road surface from collapse, crack and being dirty.
3.Be convenient for construction, timesaving and cut down the cost of maintenance.
4.Prevent tunnel from crack occurring.
5.Further solidity slopes to proof water and soil from losses.
6.Reduce the surface thickness of the ground.
7.Consolidate the net for growing grass on the slopes so as to stabilization surrounding virescence.
8.Be used for artificial top net of mines instead of metal ones.It is of fire-retardant and anti-statics with large mesh size(50x60mm).
Stabilisation:GeotecTM Biaxial geogrid, with its square aperture, provides high tensile strength in both directions. The optimised geometry of nodes and ribs increases the shear resistance by a process of interlocking between the square ribs and soil. GeotecTM geogrid can be used with any soil type. By establishing a composite platform from the fill materials and the interaction of GeotecTM geogrid, the load-spread angle can be increased to approximately 45% This makes load dispersal more effective and reduces the foundation height and construction cost. Soft Soil Foundation Reinforcement: On poor foundations, vertical loading generates lateral stress in the fill, particularly at the base. The resulting horizontal shear applied to the foundation causes lateral displacement failure at the structure. A soft soil foundation has high compaction, often with low permeability and long settlement time. Embankment cracking and structural failure on soft soil foundations often occur due to differential settlement. Conventional measures such as wick drains, chemical consolidation, increasing the width and height of the foundation, piled embankments, surcharging, etc, are complex technically with complicated or lengthy construction or high cost. The shearing resistance of soft soil foundations reinforced by GeotecTM geogrid either alone or together with conventional measures is greatly improved. With compaction improved and reduction of differential settlement, the bearing capacity of foundations is enhanced. The cost of construction is reduced with less fill needed and time scale shortened. Roads, railways, ports and other paved areas: One layer or multi layer GeotecTM geogrid construction distributes loading and disperses stress more effectively, leading to the reduction of differential settlement and improved foundation capacity. Airport runways: A tough platform can be established with GeotecTM geogrid reinforcement. Resistance to the impact of aircraft taking off and landing is improved with more effective and immediate load dispersal. Temporary roads and other unpaved areas: GeotecTM geogrid reinforcement gives ease of construction of temporary pavements with reduced construction costs. Slopes Reinforcement: In construction of roads and railways, reduced land take, convenient construction and good safety margins at reduced cost can be achieved by the use of GeotecTM geogrids reinforcement. In environmentally sensitive areas, steep vegetated slopes can often be built in place of the hard-faced structures that would be needed with conventional techniques. Failed slope reinstatement: The material of the failed slope can be excavated and reused with GeotecTM geogrid reinforcement to reinstate the failed area. This process has low cost and minimal impact on the local environment. Environmental protection of slopes:GeotecTM geogrids reinforcement can retain the face soil and encourage growth of vegetation. Natural vegetation will cover the whole facing, and special seeding coverage can be sowed to conform to surroundings if needed. Reinstatement of spent quarries: With GeotecTM geogrid reinforcement, safe structures and permanent vegetation can be established to re-integrate spent quarries into the local environment. Walls/Abutments Reinforcement: An GeotecTM geogrid reinforced wall is composed of geogrid, wall facing and fill. Because of the resistance of GeotecTM geogrids to chemical and biological attack and its interlock with the fill, a wide range of fill materials may be used, including general backfill soil, construction waste, pulverised fuel ash (FPA), etc. Reinforced walls can be constructed quickly with simple technology at low cost. Wall and slope faces can be designed economically to suit the clients requirements and to blend into the environment. Wall faces may be of brick, stone, or fully vegetated. GeotecTM geogrid reinforced walls and abutments are tough and elastic composite structures of multiple layers of geogrid and fill. They can accommodate base deformation and have particularly good resistance to vibration and earthquakes. GeotecTM geogrid reinforcement can improve the bearing capacity and factor of safety of a structure and reduce construction cost. Landfill: GeotecTM geogrids can be utilised with other geosynthetic materials in the base, cover, temporary pavements and banks of landfill sites. The use of GeotecTM geogrids can reduce landfill costs, increase capacity and improve safety margins.