Underground facilities and tunnels play an important role in the modern world serving transport infrastructure, resource storage and other applications. It is important to pay due attention to materials securing their durability, resistance to various loads and protection from external imparts in construction and service of such installations.
Geosynthetics use benefits
Soil reinforcement and stabilization. Geosynthetics can be used for soil reinforcement and stabilization around underground facilities and tunnels. Geospan GC (GCP) geogrids, for example, can be installed to prevent slides and secure stability of excavation sides. Besides, Geospan GT PP woven geotextile use would be an effective solution to stabilize soil embankments.
Drainage. Geotextiles are widely used in drainage systems around underground facilities and tunnels. They allow effective water drainage and prevention of moisture accumulation thus allowing to maintain the structure stability. Geospan BB thermally bonded geotextile is relevant for such tasks, as its special way of yarn bonding enables obtaining high filtering performance and securing the installation protection against clogging by fine soil particles, and extending the drainage system service life.
Corrosion and abrasion protection. Geomembranes ensure corrosion and abrasion protection of underground facilities and tunnels against penetration of harmful ambient substances and enhancement of their durability. Geomembranes are represented by Geospan GT PP M and Geospan GT PP WA in Geospan range. They consist of two layers bonded by lamination and are meant for waterproofing in road construction.
Monitoring and control. Some geosynthetics types possess properties enabling monitoring and control of underground facility condition. For example, geogrids with sensors integrated can provide data related to deformation and loads on an installation.
It is essential to note that proper selection and usage of geosynthetics require an integrated approach and professional competence. Incorrect use of these materials may result in serious adverse consequences, such as structure failure or damage.
Geosynthetics use calls for an engineering approach, complex calculations and design based on relevant formulae and standards. Engineering Center closely collaborating with Geopsan producer’s technical support units, can professionally solve unorthodox issues in project design and execution including those of underground facilities and tunnels construction.
Conclusions
Geosynthetics play a significant role in today’s construction industry, particularly in construction of underground facilities and tunnels. Their use ensures increase in structure quality and reliability, durability and cost effectiveness.
