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沿公路走廊的土壤属性的季节性动态:一个网络分析方法

Ibrahim Haruna Umar^1,2, Ahmad Muhammad³, Hang Lin¹

¹School of Resources and Safety Engineering, Central South University, Changsha 410083, China.

Materials (Basel, Switzerland)

|May 7, 2025

概括

季节性土壤变化对道路建设产生重大影响. 这项研究揭示了湿度影响土壤特性,需要适应性道路设计策略,以适应尼日利亚雨季和旱季.

科学领域:

地质技术工程地质技术工程
土壤力学土壤力学
土木工程土木工程是指土木工程.

背景情况:

了解土壤性质的变化对于有效的道路建设和维护至关重要.
季节性变化显著影响土壤特性,影响基础设施的稳定性.
优化道路设计需要了解不同湿度条件下的土壤行为.

研究的目的:

研究尼日利亚迈杜古里一条公路沿线土壤特性季节性变化.
分析湿季和干季对关键土壤参数的影响.
通过网络分析来评估季节间土壤网络的结构差异.

主要方法:

在雨季和干季的25个站点对9个土壤参数进行地质技术测试.
应用网络分析与z-score标准化和相似度指标.
多值分析 (θ = 0.05,0.10,0.15) 用于评估网络结构.

主要成果:

在阿特伯格极限,压缩特性 (MDD,OMC) 和加利福尼亚轴承比率 (CBR) 中观察到显著的季节性差异.
湿季土壤的可塑性较高,CBR较低 (18.9%),与干季土壤 (27.5%) 相比.
网络分析显示了结构上的差异,雨季网络的连接性和密度降低.

结论:

季节性湿度变化严重改变土壤特性,影响道路设计和性能.
适应性道路设计是必不可少的,建议在雨季使用防潮材料,在干旱季节使用优化压缩材料.
由于潮湿引起的塑性变化,土壤的分类从雨季的A-4(1) / ML转变为干季的A-2(1) / SM.

关键词:

加利福尼亚州轴承比率 (CBR)中心性措施的中心性.网络分析网络分析公路公路公路公路公路季节性变化的季节性变化.土壤的空间变异性.

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