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受基底赋存水、软弱层及排弃增高等因素的影响,阴湾排土场西帮发生了变形。为避免变形加剧导致滑坡,需采取合理的防治措施。依据现场工程地质条件,设计了抗滑桩和排土压脚2种滑坡治理方案。抗滑桩方案根据排土场边坡可能发生的滑坡模式,设计了抗滑桩参数,可快速增加滑体抗滑力。排土压脚方案通过增加边坡下部岩土体自重,提高了滑坡整体稳定性,并进行了压脚区的防排水设计。结合现场情况,通过可行性及经济分析对方案进行对比,最终选取了排土压脚方案。
Influenced by such factors as the presence of water in the basement, the weakened layer and the increased abandonment, the West Bay Dumping Site West has been deformed. In order to avoid landslide caused by intensified deformation, reasonable measures should be taken. According to the site engineering geological conditions, two kinds of landslide control schemes are designed for the anti-slide piles and the soil-pressure foot. Anti-slide piles program According to the landslide mode that may occur on the slope of the dump, the anti-slide piles parameters are designed to increase the slip resistance of the slide. Eroded foot pressure program increases the overall stability of the landslide by increasing the weight of rock and soil in the lower part of the slope, and has carried out anti-drainage design of the pressure footing area. According to the situation on site, the scheme was compared through feasibility and economic analysis, and the plan of soil erection and presser foot was finally selected.