民用工程合同书(18)

6　drawings
　　the drawings shall remain in the sole custody of the employer， but two copies thereof shall be furnished to the contractor free of charge.the contractor shall provide and make at hisown expense any further copies required by him. at the completion of the contract， the contractor shall return to the employer all drawings provided under the contract.
　　one copy of the drawings， furnished to the contractor as aforesaid， shall be kept by the contractor on the site and the same shall at any reasonable time be available for inspection and used by the employer and by any other person authorized by the employer in writing.
　　the contractor shall give written notice to the employer whenever planning or progress of the works is likely to be delayed or disrupted unless any further drawing or order， including a direction， instruction or approval， is issued by the employerwithin a reasonable time.the notice shall include details of thedrawing or order required and of why and by when it is required and of any delay or disruption likely to be suffered if it is late.
　　if， by reason of any failure or inability of the employer to is - sue within a time reasonable in all the circumstances any drawing or order requested by the contractor in accordance with sub（3） of this clause， the contractor suffers delay， then theemployer shall take such delay into account in determining anyextension of time to which the contractor is entitled.
7　general obligations
　　the contractor shall take full responsibility for the adequacy， stability and safety of all site operations and methods of construction， provided that the contractor shall not be responsible， except as may be expressly provided in the contract， for the design or specification of the permanent works ， or for the design orspecification of any temporary works.
　　the employer shall have made available to the contractor with the tender documents such data on hydrological and subsurface conditions as shall have been obtained by or on behalf of the employer from investigations undertaken relevant to theworks and the tender shall be deemed to have been based on such data， but the contractor shall be responsible for his own interpretation thereof.