湿陷性黄土地区路基填料改良及施控制

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【摘要】依托澄韦高速公路路基施工现场实际情况，利用水泥对湿陷性黄土进行改良处理后用于路床填筑，保证压实质量方面获得良好效果，同时再合理安排施工设备及优化机械组合，结合室内试验及现场试检测，汇集参数，总结施工经验，对以后湿陷性黄土地区水泥土施工做了很好的指导作用。

【关键词】路基工程;湿陷性黄土水泥土;碾压;含水率;凸块压路机;冷再生拌合;施工

【Abstract】 Based on the actual situation of the subgrade construction site of Chengwei expressway， the collapsible loess is improved with cement and used for roadbed filling to ensure good compaction quality. At the same time， the construction equipment is reasonably arranged and the mechanical combination is optimized. Combined with indoor test and on-site test， the parameters are collected and the construction experience is summarized， It has done a good guiding role for the cement soil construction in the collapsible loess area in the future.

【Key words】subgrade engineering; Collapsible loess cement soil; Rolling; Moisture content; Cold recycling mixing of bump roller; construction

【DOI】10.12334/j.issn.1002-8536.2022.04.064

1、引言

项目位于澄城县和蒲城县境内，区内地形以黄土塬为主，局部沟壑纵横，地势北高南低，向南缓倾。（剩余5159字）