(g) Independently supported platforms are to be provided to avoid working form that part of the structure being demolished. (h) Isolated walls should not be left unshored unless they are structurally stable against wind and other forces likely to affect them. 8.1.7 Use Of Explosive 1 General Description (a) When the use of explosives is necessary for the carrying out of the work, the Contractor is to exercise the utmost care not to endanger life or property. The Contractor shall be responsible for all damage resulting from the use of explosive. (b) All explosives are to be stored in a secure manner in compliance with all the requirements of the Police, Civil Defence Department and the manufacturer of the explosive. All such storage places are to be clearly marked, “DANGEROUS - EXPLOSIVES”, in English and Arabic a nd shall be in the care of a competent watchman. (c) Explosives will not be stored closer than 300 metres from any road, building, camping area or place of human occupancy. 2 Procedures (a) The Contractor is to notify each public utility department having structures in proximity to the Site of his intention to use explosive. Such notice shall be given sufficiently in advance in order to enable the said authorities to take such steps as they may deem necessary to protect their property from damage. (b) The written consent of the Engineer is to be obtained for each proposal of the Contractor to use explosives. (c) Where blasting is proposed adjacent to a building or other structure, existing or under construction, the Contractor will satisfy the Engineer that safe values of vibrational amplitude and peak particle velocity will not be exceeded. (d) The Contractor is to comply with the provisions of BS 6657 in respect of the use of electrical detonators in the vicinity of static and mobile radio transmitters, including normal radio and television broadcasting stations and radar units associated with aircraft movements.
roots energy & engineering services QCS 2014 Section 01: General Page 5 Part 08: Building Demolition (e) The handling, transport and use of explosives will be in accordance with the relevant provisions of BS 5607. Explosives are to be used in the quantities and manner recommended by the manufacturers. 8.1.8 Special Investigations 1 General Description (a) The Contractor is to ascertain from the responsible authority whether any mains or services need to be redirected or cut-off. The Contractor shall conform to any procedures prescribed by the relevant authority and the Engineer. (b) Notwithstanding any information supplied by the Engineer, the Contractor is to take all necessary steps to establish the presence of any stressed components, supporting walls and the like in the structures to be demolished. (c) Where special circumstances such as unknown soil conditions exist (which could reveal hazardous material) or where the structural components of the building support system are unknown, additional investigations as necessary will be performed. The cost of such investigations shall be borne by the Contractor unless otherwise stated in the Project Documentation.
You've reached the end of your free preview.
Want to read all 12 pages?
- Fall '19