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Description of 23/30457227 DC 2023This document is applicable to tunnel boring machines and associated machines and equipment as defined in Clause 3 used for the primary purpose of creating an underground void through the construction of horizontal and inclined tunnels and other underground excavations. NOTE 1 Other underground excavations can include access structures to complex tunnel layouts such as in underground stations, utilities, underground storage facilities as well as below ground tunnel portals. It deals with all significant hazards, hazardous situations and events relevant to such machinery when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer (see 4). This document covers monitoring for hazardous atmospheres within the confines of the tunnel boring machines. Requirements for air locks and pressurized transfer shuttles are covered by prEN 12110-1:2023 and prEN 12110-2:2023. Hand-arm and whole-body vibration are not considered as significant hazards for tunnel boring machines. The following items and applications are not covered by this document: - the additional requirements for the use of entire tunnelling machinery within a hyperbaric environment; - the additional requirements for use of tunnel boring machines in potentially explosive atmospheres; NOTE 2 For the application in potentially explosive atmospheres, see EN ISO/IEC 80079 38:2016 for guidance. - ancillary tools and equipment which are not an integral part of the tunnel boring machine, but located on the machinery; - supply network for services to the tunnel boring machine (e.g. power supply, water, pipes, compressed air, ventilation duct, etc.); - loading and transport machinery which is not an integral part of the tunnel boring machine, e.g. delivery vehicle for logistic support, tunnel spoil removal system; - EMC interactions between the tunnelling machinery and third-party surface and underground assets, e.g. railway signalling. This document is not applicable to tunnel boring machines which are manufactured before the date of publication of this European Standard by CEN.
About BSIBSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses. |
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