应用研究 2026年 第卷 第10期

DOI: 10.7672 / sgjs2026100114

高原高海拔区水泥稳定碎石层边部质量控制

雷峰娃,马 帅,吕志鹏

作者简介:

雷峰娃,高级工程师,总工程师,E⁃mail: 81942076@qq. com

作者单位:

中交一公局西北工程有限公司,陕西 西安 710100

基金项目:

∗中交一公局集团有限公司高原高海拔低等级公路技术研究( xbgs⁃ygj⁃2024⁃008)

摘要:

针对高原高海拔地区低温、低气压、强风及冻融循环等恶劣环境导致的水泥稳定碎石层边部易出现塌边、离析和水分快速流失等质量方面的问题. 构建集振动拌合、全流程防离析、智能补水和自适应支护为一体的协同施工技术体系,通过变频振动拌合与动态协同补水技术增强混合料均匀性及含水率稳定性;采用九宫格分流、双向螺旋布料和弹性挡板密封措施构建全过程梯度防离析控制链;基于多参数动态耦合模型开发智能补水系统,实现边部含水率精准闭环控制;设计高密度可调式模板支护与钢钎锚固结构,提升边部抗变形能力及成型质量. 工程应用结果表明,该技术有效降低了返工率及材料的损耗.

English:

In response to the quality issues of collapse, segregation, and rapid loss of moisture at theedges of cement stabilized crushed stone layers caused by harsh environments such as low temperature,low pressure, strong winds, and freeze⁃thaw cycles in high⁃altitude areas of the plateau. A collaborativeconstruction technology system integrating vibration mixing, whole process anti⁃segregation, intelligentwater replenishment and adaptive support is constructed. The uniformity and moisture content stability ofthe mixture are enhanced by frequency conversion vibration mixing and dynamic collaborative waterreplenishment technology. The whole process gradient anti⁃segregation control chain is constructed byusing nine⁃grid shunt, two⁃way spiral cloth and elastic baffle sealing measures. Based on the multi⁃parameter dynamic coupling model, the intelligent water replenishment system is developed to realize theprecise closed⁃loop control of the edge moisture content. The high⁃density adjustable formwork supportand steel brazing anchorage structure are designed to improve the deformation resistance and formingquality of the edge. The engineering application results show that the technology effectively reduces therework rate and material loss.