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一、四专题项目的一些主要改革铁路局联合召开的“增建复线、改建桥涵的施工”,“桥台排水”,“椎体边坡及铺砌问题”,“桥面及检查设备标准”四个专题项目协作会,已经结束。会议对该四专题项目提出了一些主要改革: 1.椎体边坡坡度定为包括埋式桥台在内除按特殊设计,一般应为:在路屑边缘下的第一个6公尺高度内不陡于1:1;6公尺～12公尺为1:1.25;12公尺以上为1:1.5。为了施工方便,也可采用按上述坡度放线,连接上、下二点,一坡到底的边缘。
Some Major Reform Projects of the First and Fourth Special Projects The “Bridge and Drainage Construction, Bridge Abutment, Vertebra Slope and Paving Problems,” and “Bridge Deck and Inspection Equipment Standards” jointly held by the Railway Administration A thematic project coordination meeting, has ended. The meeting proposed some major reforms for the four-topic project: 1. The gradient of the vertebral slope shall be set to include the buried abutment. In addition to the special design, the height of the first 6 meters under the edge of the debris should generally be: Not steep inside 1: 1; 6 to 12 meters to 1: 1.25; 12 meters above the 1: 1.5. In order to facilitate construction, can also be used according to the slope of the line, connecting the upper and lower two points, a slope to the end of the edge.