通过机器学习优化不同细度的砂土壤的土壤条件和预测
Xiaoyan Zhang1, Hongsen Li2, Qiang Li3,4
1School of Mechanics and Civil Engineering, China University of Mining and Technology-Beijing, Beijing, 100083, China. zhangxiaoyan@cumtb.edu.cn.
Scientific reports
|September 1, 2025
概括
使用土泥和泡进行土壤调节,可改善沙石土的泥流塑性. 深度学习模型准确地预测可行性,提高地面压力平衡屏蔽道的效率.
科学领域:
- 地质工程
- 道技术
- 材料科学
背景情况:
- 适当的土壤调节对于土压平衡 (EPB) 屏蔽道至关重要,以防止泥和切割器磨损等问题.
- 沙土面面临着独特的挑战,因为它们的分级和细分含量会影响泥流动和可加工性.
- 现有的土壤调节方法需要针对不同的土壤条件进行优化.
研究的目的:
- 调查石泥和泡对不同细度的砂土壤的可加工性的影响.
- 分析不同度和注射比例的调节剂的影响.
- 使用深度学习算法开发土壤可加工性的预测模型.
主要方法:
- 在未经调节和调节的砂土壤上进行了沉降测试,其细粒含量在10%至80%之间.
- 石泥和泡被用作调节剂,其泥注入比率 (SIR) 和泡注入比率 (FIR) 不同.
- 采用深度学习算法来建模土壤条件和沉降值之间的非线性关系.
主要成果:
- 随着细菌含量的增加,无条件的土壤沉降值显著下降.
- 土泥在10%-20%细度的土壤中提高了加工能力,最佳SIR为8%和6%.
- 在60-80%细度的土壤中,泡显著提高了可加工性,达到高达200mm的沉降值.
- 深度学习模型在预测低谷值方面达到95%以上的准确性.
结论:
- 土壤调节剂,土泥和泡有效地提高了沙土壤的可加工性.
- 调节剂的有效性取决于细分含量和注射比率.
- 深度学习方法为预测土壤可耕性提供了准确和有效的方法,支持道工程的智能土壤调节解决方案.
相关概念视频
Moisture Content and Bulking of Aggregate
207
The moisture content of aggregates is a crucial factor in construction, particularly in concrete mixing, as it influences the total water required in the mix. Moisture content represents the water coated on the exterior surface of the aggregate existing in a saturated and surface-dry condition. The total water content of a moist aggregate is the sum of its moisture content and water absorption.
When aggregates are exposed to rain or sit in stockpiles, they absorb moisture, which must be...
When aggregates are exposed to rain or sit in stockpiles, they absorb moisture, which must be...
207
Design Example: Aggregate Gradation
147
The right type and quality of aggregates are crucial for concrete as they significantly influence its properties, mix proportions, and cost-effectiveness. If different sources are available for sand, the commonly used fine aggregate in concrete, the selection of sand is primarily based on its gradation.
The grading, or particle-size distribution, of sand is determined using sieve analysis, with standard sizes ranging from 150 μm to 10 mm (ASTM No. 100 sieve to 3⁄8 in. sieve). Sand is...
The grading, or particle-size distribution, of sand is determined using sieve analysis, with standard sizes ranging from 150 μm to 10 mm (ASTM No. 100 sieve to 3⁄8 in. sieve). Sand is...
147
Aggregates Classification
380
Aggregate classification is generally based on its size, petrographic characteristics, weight, and source. Size classification ranges from coarse to fine aggregates, defined by the size of the particles. Coarse aggregates are particles that do not pass through ASTM sieve No. 4, and aggregates that pass through the sieve are fine aggregates.
Petrographic classification groups aggregates based on common mineralogical characteristics. Some of the common mineral groups found in aggregates are...
Petrographic classification groups aggregates based on common mineralogical characteristics. Some of the common mineral groups found in aggregates are...
380
Porosity and Absorption of Aggregate
395
Aggregates contain pores of varying sizes; while some are completely enclosed within the particles, others open onto the surface, allowing water to penetrate. The porosity of aggregates is a major factor contributing to the overall porosity of concrete, given that aggregates constitute about three-quarters of concrete's volume.
When all pores in an aggregate are filled with water, the aggregate is considered saturated and surface-dry. If left in dry air, water will evaporate until the...
When all pores in an aggregate are filled with water, the aggregate is considered saturated and surface-dry. If left in dry air, water will evaporate until the...
395
Key Elements for Plant Nutrition
21.2K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
21.2K
Deleterious Substances in Aggregate
248
Deleterious substances in aggregates can be detrimental to the quality and durability of concrete. These substances include organic impurities like loam, which interfere with cement hydration and are usually present in the sand. These prevent a good bond between aggregate and cement paste. Organic impurities can be detected using the colorimetric test, where the darkness of a solution after agitation indicates the level of organic content.
Another type of impurity is clay and fine material that...
Another type of impurity is clay and fine material that...
248


