Presentation abstract:

Cavidrain Invert geocomposite systems are used to form a drainage layer beneath the road pavement of tunnel floors. The use of Cavidrain Invert offers a number of advantages over more traditional methods (which use crushed stone and pipes) such as: (i) reduced excavation (as they form a much thinner layer compared to crushed stone layers, requiring less excavation thus accelerating the construction process); (ii) faster installation (they can be quickly laid down, reducing installation time compared to traditional methods); (iii) lower costs (achieved through the reduction of excavation and the acceleration of the construction process); (iv) improved drainage (as they provide larger void to facilitate a better water flow compared to crushed stone and thus ensuring effective drainage); (v) reduced mineral scale buildup (by mitigating problems caused by mineral deposits that can clog traditional drainage systems). This presentation demonstrates the use of Cavidrain Invert in projects such as the Cross River Rail and how these projects integrated this system into the design and construction.

Speak Bios:

Goran Erak

Civil engineer with 33 years of experience in the UK, Europe, Africa and Middle East, working on a number of challenging projects within a variety of sectors, including environmental, tunnels, highways, rail, water, mining, structural and residential.

Responsible for the ABG Geosynthetics Civils division globally, including monitoring design output for specific projects in this sector and dealing with civil engineering consultancies, contractors, government organisations and coordinating research projects with universities. Providing specialist geosynthetic design solutions on unusual or difficult civil engineering applications. Managing research and development projects for advanced geosynthetic applications.

Amir Shahkolahi

MEngSc (Civil Engineering), Fellow member of Engineers Australia, National Deputy Chair of the Australian Geomechanics Society (AGS), Board member of the American Society of Civil Engineers (ASCE)-Australian Section, Member of the Standards Australia Technical Committee CE/032-Reinforced fill structures working group, Representative of Engineers Australia in the Standard Australia Technical Committee for Geosynthetics and the International Organization for Standardization (ISO) Technical Committee ISO/TC 221, Industry Board member of the Australian Pavement Research Hub, Elected Council member of the International Geosynthetics Society (IGS), Chair of the International Geosynthetics Society (IGS) Asia Pacific Regional Committee, Leadership team of the International Geosynthetics Society Technical Committees for Barriers (TC-B), Member of the International Geosynthetics Society Technical Committees for reinforcement (TC-R) and Stabilisation (TC-S), and Member of the ASTM Technical Committee D35 on Geosynthetics and Committee E60 on Sustainability.

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