水利水電專業(yè)外文翻譯---填料的填筑和保護(hù)-橋梁設(shè)計(jì)(已修改)
2025-05-31 23:05 本頁(yè)面
【正文】 Placing and protecting fill Fill shall be placed so that mo part of the final foundation surface remains exposed for more than 72 hours. Fill shall be placed in such methods as will prevent segregation of the material. Where the Contract requires the placing of different types of fill in separate zones,the Contractor shall carry out the work so as to prebent mixing of different types of there be ,in the opinion of the Engineer, any excessive mixing of different types of fill , such mixed materials shall be removed to a spoil tip and replaced with fresh fill. Any undesirable material accumulated on the fill surface shall be removed before placeing the next layer of fill material shall be placed on a previous layer of that has dried out,bee saturated or in any way deteriorated by exposure or by spilling of other material or disterbance by mechanical transport or by deposition of wind blown particles or by any other means. Before fresh fill material is placed aoo such deteriorated fill or foreign material shall be removed to a depth at which material of an acceptable standard is exposed. The surface of each layer is to be approved by the Engineer before the next layer is placed. Any fill shall be placed in uniform layers not greater than the approved thickness as specified hereafter and in an orderly sequence approximately horizontal along the centreline of the where specified of directed otherwise, no portion of any embankment shall be stepped more than 3 feet higher than any immediately adjacent portion except where permitted by the Engineer and the slope formed by such steps shall not exceed 1V:3H and not less than 1V:4H from one level to as shown on the Drawings or as otherwise directed, all fill placement surfaces shall be sloped at right angles to the centerline of the embankment in both the upstream and downstream direction from the downstream edge of the
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