高速铁路路基改良土垫层对毛细水处治的经济性分析研究  

Economic Analysis and study on treatment of Capillary Water by improved soil cushion of High Speed Railway roadbed

作　　者：曹权 CAO Quan(China Railway SIYUAN Survey and Design Group Co.,Ltd,Wuhan 430063)

机构地区：[1]中铁第四勘察设计院集团有限公司工经院,武汉430063

出　　处：《铁道勘测与设计》2024年第3期36-39,共4页Railway Survey and Design

摘　　要：路基内毛细水上升导致的翻浆冒泥、冻胀等灾害影响高速铁路安全稳定运行。为实现安全、有效、经济的治理毛细水灾害,依托铁路工程实际,开展石灰改良土和水泥改良土垫层毛细水上升实验研究,并进行经济对比分析。研究结果表明,石灰改良土垫层和水泥改良土垫层均具有抑制毛细水上升的效果,水泥改良土垫层相比石灰改良土垫层具有较高的经济效益,具有较好的路用性能和社会效益,成果可为毛细水灾害严重地区工程项目提供借鉴。The disasters such as mud overflowing and frost heave caused by the rising of capillary water in the subgrade affect the safe and stable operation of high-speed railway.In order to realize the safe,effective and economical treatment of capillary water disaster,relying on the actual railway engineering,the experimental study of capillary water rising of lime-improved soil and cement-improved soil bedding was carried out,and the economic comparative analysis was carried out.The results show that both lime-improved soil bedding and cement-improved soil bedding have the effect of inhibiting the rising of capillary water.Compared with the lime-improved soil bedding,the cement-improved soil bedding has higher economic benefits,better road performance and social benefits.The results can provide reference for engineering projects in areas with serious capillary water disasters.

关 键 词：毛细水 石灰改良土 水泥改良土 成本分析 

分 类 号：U41[交通运输工程—道路与铁道工程]