RELATÓRIOS
The ITA Contractual Framework Checklist for Subsurface Construction Contracts
This document identifies the key contractual practice areas the ITA believes are fundamental for ensuring the success of subsurface construction projects.
The reason that this document has been prepared is because existing standard forms of construction guidelines and contracts do not adequately deal with the particularities of the subsurface environment. The ITA believes that the application of this framework will enhance the possibility of achieving the project objectives for all stakeholders.
This publication does not specify how each subject area should be resolved, for that is almost certainly a matter peculiar to each project – but recommends that the timely and appropriate consideration of all the matters raised in this publication is essential for the successful subsurface project delivery.
Shotcrete for rock Support - A Summary report on State-of-the-ArtThe International Tunnelling and Underground Space Association (ITA) Working Group 12 on Sprayed Concrete Use decided, in its meeting held in Durban in May 2000, to produce a State-of-the-Art Report about the current states of shotcrete technology in different countries. This report is the result of that task. This is a revised version of the report first published in November 2007. |
Report on Environmental and sustainable development reasons to go undergroundThe report illustrates over 100 tunnel and underground space projects on all five continents and covering a broad spectrum of the Association’s Member Nations. The projects illustrate the opportunities and benefits of going underground to reduce the environmental impact on Society. |
Report on long tunnels at great depthRecent projects of very long railway tunnels (from 20 to 50 km or more) at great depth (thousand meters and more) have only emphasized what has been recognized for many years with existing long railway and road tunnels (from 5 to 15 km or more): the work is a complex civil engineering system, to be designed under uncertain conditions with stringent requirements for safety during construction and operation. |
General report on conventional tunnellingThe aim of the report is: |
