摘要
研究目的:对土质或较为破碎软质岩体深路堑,为降低边坡高度及保持边坡稳定,避免剥皮刷方、大面积破坏山体、植被,以往常采用坡脚高挡墙或锚固桩收坡支护的传统工程措施,在大规模机械化施工的形式下,存在施工安全隐患。在客运专线工程建设中,对此类边坡,为控制边坡高度,降低工程风险,方便施工,保证边坡施工安全及长期稳定性;同时较好地满足绿化环境,节约圬工及投资的要求,采用坡脚矮挡墙支护,上部边坡适当抽陡,有必要以预应力锚杆(索)框架梁结构进行分级加固。研究结论:对土质或软质岩路堑,采用抽陡边坡"小吨位(锚固预应力)、密间距"的预应力钢筋锚杆框架梁加固与坡脚墙组合形成的轻型支护结构,框架梁内采用适宜的植物防护措施,技术成熟、工艺先进、合理可靠,具有较高的推广应用价值。
Research purposes： For the deep soft soil or soft rock cutting, the traditional engineering measures of the toe retaining wall or the slope end supporting with anchor pile is often taken to reduce the slope height, remain the slope stability and avoid the rock moving away and destroy mountain and vegetation massly. However, under the condition of the mechanized construction in large scale, there are the security risks when taking these measures. For building such kind of the slope of passenger dedicated line, the toe low retaining wall and the uper steep slope are used in order to well control the slope height, cut the construction risk, be convenient for construction and ensure the construction security and the long - term stability of the slope as well as to meet the requirements of greening the environment, saving the mason and reducing the investment. So it is necessary to reinforce the prestressed anchored frame beam in grade.
Research conclusions：For the soft soil or soft rock cutting, the light structure of combination of the dense spacing prestressed anchored frame beam to the steep slope with the toe remaining wall is used, and the appropriate vegetation measure is taken in the anchored frame beam, with the features of mature technology, advanced process, rationality and reliability. So, it can be widely applicated.
出处
《铁道工程学报》
EI
北大核心
2013年第3期16-18,85,共4页
Journal of Railway Engineering Society
