微型组合桩在公路滑坡抢险工程中的应用  

Application of Micro-composite Pile in Highway Landslide Rescue Engineering

作　　者：刘鹏 LIU Peng(Linfen North Expressway Management Co.,Ltd.,Linfen,Shanxi 041000,China)

机构地区：[1]临汾北高速公路管理有限公司,山西临汾041000

出　　处：《黑龙江交通科技》2024年第3期17-20,共4页Communications Science and Technology Heilongjiang

摘　　要：针对微型组合桩在公路滑坡抢险工程中的应用,以四川省达州市宣汉县S202公路边坡堆积体微型桩治理工程为案例,开展倾斜式微型组合桩工程实践应用研究,通过数值模拟对比竖直桩(实际方案)和三斜桩(推荐方案)的边坡防护效果和经济效益。可知两种微型桩布置方式均能满足滑坡抢险处理需求,布置竖直桩时,边坡稳定性系数为1.61;布置倾斜桩时,边坡稳定性系数为1.96,较布置竖直桩时稳定系数提高了近13.6%,节约成本近40.7%,三斜桩抗滑效果更优。For micro combination piles in highway engineering,the application of landslide disaster in Sichuan Dazhou S202 Xuanhan county highway slope deposit micro pile treatment project as a case,tilting the micro pile engineering practice the application study,numerical simulation(actual)and three vertical pile inclined pile(recommended)slope protection effect and economic benefit.The results show that the two kinds of micro-pile arrangement can meet the needs of landslide emergency treatment.When vertical piles are arranged,the slope stability coefficient is 1.61.The slope stability coefficient is 1.96 when inclined piles are arranged,which is nearly 13.6%higher than that when vertical piles are arranged,and the cost saving is nearly 40.7%.The anti-sliding effect of tri-inclined piles is better.

关 键 词：公路 滑坡 抢险工程 微型组合桩 

分 类 号：U418.9[交通运输工程—道路与铁道工程]