洋山工程中的陡坡路堤设计

Design of steep slope embankment of Yangshan port

以洋山工程中的陡坡路堤设计为背景,详述了该类陡坡的设计流程以及注意事项。山岭重丘区陡坡路堤设计中应慎重选取回填材料与原山体的摩擦系数,并根据现场情况合理确定此参数,达到安全稳定和节省工程造价的目的;对填方路基的处理应综合考虑边坡坡率及抗滑挡墙的合理高度;为增大基底抗滑安全系数,重力式挡墙可采用基底向内倾斜的方法,在开挖或爆破工程量增加不大的情况下,可明显提高其安全系数。

The procedure and essentials for the design of steep slope embankment are expounded and slopes of Yangshan port are taken as demonstration. The backfill material and the friction coefficient of the original the steep mountain should be carefully selected for the design of steep slope embankment of the areas with the mountain ridge and overlapping hills. The reasonable parameters should be obtained from the site conditions to satisfy the purposes of stability and reduce the costs. Ratio of slopes and sliding retaining walls with reasonable height should be taken into account during the selection of measurements for the backfill of roadbeds. The gravity retaining wall with basements inclined inward can improve the safety coefficient obviously with excavation or blasting engineering quantities increasing little. The measurements for steep slope embankment may provide some reference for the slopes of the same kinds.