一个数值模拟的湿度减少精细土壤亚基层与地质织品
Chuanyi Ma1, Haojie Feng2, Chuan Wang1
1Shandong Hi-Speed Group Co., Ltd., Jinan 250014, China.
Materials (Basel, Switzerland)
|January 23, 2024
概括
一种新的接地质织品通过排水和增加土壤强度,有效地控制细粒度土壤下层水分. 这种创新材料显著降低了水含量,并增强了动态弹性模块,提高了下层承载能力.
科学领域:
- 地质技术工程 地质技术工程
- 土壤科学 土壤科学
- 材料科学 材料科学 材料科学
背景情况:
- 细粒度土壤亚等级易受湿度变化的影响,影响其机械性能.
- 控制地下水含量对于基础设施的稳定性和寿命至关重要.
- 现有的下层水分控制方法存在局限性.
研究的目的:
- 评估一种新型吸管地质织物的有效性,以控制细粒度土壤亚等级的水含量.
- 评估地质织品对底层湿度,矩阵吸收和动态弹性模量的影响.
- 调查地质织品的排水和增强能力.
主要方法:
- 实验室测试 (压力板装置) 用于确定地质织物的液压参数.
- 数字建模 (COMSOL) 模拟水流和湿度分布在各种地下水位下的下层.
- 地质织品安装前和之后的亚性质的比较.
主要成果:
- 地质织物表现出强烈的水友性,低水和高水平透性.
- 在48米的地下水位上,土壤含水量 (7.69.6%) 和土壤和 (18.323.0%) 在地质织物上显著减少.
- 增加矩阵吸收 (22.3倍) 和动态弹性模量 (23.243.6%) 的次级.
- 地质织品起到了毛细血管屏障和排水道的作用.
结论:
- 接地质织物是细粒度土壤亚等级的有效排水材料.
- 它通过管理水分和增强机械性能来提高底层承载能力.
- 吸管地质织品的使用对地下水位在4至8米之间的亚级有利.
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