Establishment and experiment of a pressure-bearing subsidence model of layered soil in forest region

IF 1.5 4区 农林科学 Q4 SOIL SCIENCE Canadian Journal of Soil Science Pub Date : 2022-11-25 DOI:10.1139/cjss-2022-0067
Yuan Zhou, Shufa Sun, Jingkai Wang, Miao Yu, Haoyu Yin, Fei Yang, Hao Luo
{"title":"Establishment and experiment of a pressure-bearing subsidence model of layered soil in forest region","authors":"Yuan Zhou, Shufa Sun, Jingkai Wang, Miao Yu, Haoyu Yin, Fei Yang, Hao Luo","doi":"10.1139/cjss-2022-0067","DOIUrl":null,"url":null,"abstract":"Abstract Forest vehicle operation causes different degrees of compaction damage to the soil, which is related to the pressure-bearing characteristics of the soil. However, scholars have not profoundly investigated the pressure-bearing factors of forest soil. In this paper, disturbed brown coniferous forest soil was collected layer by layer, dried, screened, and tested with indoor pressing-plate tests with different pressing-plate shapes and diameters (side lengths). A kind of pressure–subsidence (P–Z) curve of hard soil, which is different from those of farmland soil and homogeneous remolded soil, was obtained and drawn as the P–Z curve. The results show that in the process of pressure subsidence, the forest soil gradually changed from loose to compact. Furthermore, the change of pressure-bearing subsidence of layered soil from this forest region was characterized first by the rapid increase of soil subsidence with the increase of pressure. Then, the subsidence speed became slower with the increase of pressure; finally, subsidence speed was much less affected by the increase in pressure. According to the pressure-bearing subsidence curve of forest soil, a new subsidence model is put forward in this paper. The new model has a good prediction effect on the subsidence curve of forest soil. This paper aims to provide a theoretical basis for studying soil pressure-bearing characteristics and the development of vehicles in high-passing forest areas.","PeriodicalId":9384,"journal":{"name":"Canadian Journal of Soil Science","volume":"103 1","pages":"332 - 343"},"PeriodicalIF":1.5000,"publicationDate":"2022-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Canadian Journal of Soil Science","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1139/cjss-2022-0067","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"SOIL SCIENCE","Score":null,"Total":0}
引用次数: 0

Abstract

Abstract Forest vehicle operation causes different degrees of compaction damage to the soil, which is related to the pressure-bearing characteristics of the soil. However, scholars have not profoundly investigated the pressure-bearing factors of forest soil. In this paper, disturbed brown coniferous forest soil was collected layer by layer, dried, screened, and tested with indoor pressing-plate tests with different pressing-plate shapes and diameters (side lengths). A kind of pressure–subsidence (P–Z) curve of hard soil, which is different from those of farmland soil and homogeneous remolded soil, was obtained and drawn as the P–Z curve. The results show that in the process of pressure subsidence, the forest soil gradually changed from loose to compact. Furthermore, the change of pressure-bearing subsidence of layered soil from this forest region was characterized first by the rapid increase of soil subsidence with the increase of pressure. Then, the subsidence speed became slower with the increase of pressure; finally, subsidence speed was much less affected by the increase in pressure. According to the pressure-bearing subsidence curve of forest soil, a new subsidence model is put forward in this paper. The new model has a good prediction effect on the subsidence curve of forest soil. This paper aims to provide a theoretical basis for studying soil pressure-bearing characteristics and the development of vehicles in high-passing forest areas.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
林区层状土承压沉降模型的建立与试验
摘要森林车辆作业对土壤造成不同程度的压实破坏,这与土壤的承压特性有关。然而,学者们对森林土壤承压因素的研究还不够深入。本文逐层采集受扰动的棕针叶林土壤,进行干燥、筛选,并采用不同压板形状和直径(边长)的室内压板试验。得到了一种不同于农田土和均质重塑土的硬土压力沉降(P-Z)曲线,并将其绘制为P-Z曲线。结果表明:在压力沉降过程中,森林土壤逐渐由疏松向密实转变;此外,该林区层状土的承压沉降变化首先表现为随压力的增加而迅速增加。随着压力的增大,沉降速度逐渐变缓;最后,沉降速度受压力增加的影响较小。根据森林土壤的承压沉降曲线,提出了一种新的沉降模型。该模型对森林土壤沉降曲线具有较好的预测效果。本文旨在为公路林区土壤承压特性研究和车辆发展提供理论依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Canadian Journal of Soil Science
Canadian Journal of Soil Science 农林科学-土壤科学
CiteScore
2.90
自引率
11.80%
发文量
73
审稿时长
6.0 months
期刊介绍: The Canadian Journal of Soil Science is an international peer-reviewed journal published in cooperation with the Canadian Society of Soil Science. The journal publishes original research on the use, management, structure and development of soils and draws from the disciplines of soil science, agrometeorology, ecology, agricultural engineering, environmental science, hydrology, forestry, geology, geography and climatology. Research is published in a number of topic sections including: agrometeorology; ecology, biological processes and plant interactions; composition and chemical processes; physical processes and interfaces; genesis, landscape processes and relationships; contamination and environmental stewardship; and management for agricultural, forestry and urban uses.
期刊最新文献
Gamma radiation for the estimation of mineral soil water content in a boreal forest Soil enzyme activities in heavily manured and waterlogged soil cultivated with ryegrass (Lolium multiflorum) A Self-adjusting Parametric Model for Attenuation Characteristics of WUSN Signal Parameter calibration of discrete element simulation for the interaction between heavy soil and soil-engaging components in shellfish culture Loss of potentially toxic elements to snowmelt runoff from soils amended with alum, gypsum, and Epsom salt.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1