Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
FLUCTUATION EFFECT OF EQUILIBRIUM MOISTURE CONTENT OF LOW SUBGRADE UNDER HIGH GROUNDWATER LEVEL IN HOT AND HUMID CLIMATIC REGIONS
View through CrossRef
In order to reveal the fluctuation effect of equilibrium moisture content of low subgrade in hot and humid climatic regions, the effect of temperature on the fluctuation of the equilibrium moisture content of subgrade was analysed. Taking the typical climate and the subgrade soil in Fujian province as an example, three technological methods - theoretical analysis, numerical simulation and indoor simulation experiment - were adopted in the investigation of the fluctuation effect of equilibrium moisture content of subgrade. The results show that, computing results from the formula of the equilibrium moisture content of subgrade, the numerical simulation results are closer to each other in consideration of the temperature effect. The test results can not reflect the relationship between the equilibrium moisture content and the height of embankment. The maximum fluctuation range of the equilibrium moisture content of the cement concrete pavement is less than 2 percent in Fujian area, and this phenomenon presents the effect of the moist-hot climate on the equilibrium moisture content. Equilibrium moisture content presents a declining trend with the increment of the temperature and the compactness. So, if matric potential considering temperature indirectly reflects the influence of thermal potential, then the equilibrium moisture content of low subgrade under high groundwater level can be estimated approximately. The fluctuation range of equilibrium moisture content in different layers of subgrade can be reduced effectively with the increment of the roadbed compaction degree.
Czech Technical University in Prague - Central Library
Title: FLUCTUATION EFFECT OF EQUILIBRIUM MOISTURE CONTENT OF LOW SUBGRADE UNDER HIGH GROUNDWATER LEVEL IN HOT AND HUMID CLIMATIC REGIONS
Description:
In order to reveal the fluctuation effect of equilibrium moisture content of low subgrade in hot and humid climatic regions, the effect of temperature on the fluctuation of the equilibrium moisture content of subgrade was analysed.
Taking the typical climate and the subgrade soil in Fujian province as an example, three technological methods - theoretical analysis, numerical simulation and indoor simulation experiment - were adopted in the investigation of the fluctuation effect of equilibrium moisture content of subgrade.
The results show that, computing results from the formula of the equilibrium moisture content of subgrade, the numerical simulation results are closer to each other in consideration of the temperature effect.
The test results can not reflect the relationship between the equilibrium moisture content and the height of embankment.
The maximum fluctuation range of the equilibrium moisture content of the cement concrete pavement is less than 2 percent in Fujian area, and this phenomenon presents the effect of the moist-hot climate on the equilibrium moisture content.
Equilibrium moisture content presents a declining trend with the increment of the temperature and the compactness.
So, if matric potential considering temperature indirectly reflects the influence of thermal potential, then the equilibrium moisture content of low subgrade under high groundwater level can be estimated approximately.
The fluctuation range of equilibrium moisture content in different layers of subgrade can be reduced effectively with the increment of the roadbed compaction degree.
Related Results
Characterizing Groundwater Quality, Recharge and Distribution under Anthropogenic conditions
Characterizing Groundwater Quality, Recharge and Distribution under Anthropogenic conditions
Awareness concerning sustainable groundwater management is gaining traction and calls for adequate understanding of the complexities of natural and anthropogenic processes and how ...
The behavior of the Perbaungan railway subgrade
The behavior of the Perbaungan railway subgrade
Railway subgrade is a layer consisting of soil material which can be in the form of natural soil, repaired material, and in the form of embankment of selected soil material that me...
Evaluation of Differential Settlement of Subgrade for Highway-Widening Projects
Evaluation of Differential Settlement of Subgrade for Highway-Widening Projects
Highway widening is an important way to improve the existing expressway capacity and promote the development of transportation systems. The differential settlement between the old ...
Study on the In Situ Test of the Treatment Effect for the Riverbank Soft Soil Subgrade in the Hetao Area
Study on the In Situ Test of the Treatment Effect for the Riverbank Soft Soil Subgrade in the Hetao Area
The Inner Mongolia Hetao area has a widely distributed riverbank fluvial soft soil with high groundwater levels and ground surface water. This situation may incur some potential en...
Forecasting Net Groundwater Depletion in Well Irrigation Areas with Long Short-term Memory Networks
Forecasting Net Groundwater Depletion in Well Irrigation Areas with Long Short-term Memory Networks
<p>Due to the scarcity of available surface water, many irrigated areas in North China Plain (NCP) heavily rely on groundwater, which has resulted in groundwater over...
Characteristics of groundwater circulation and evolution in Yanhe spring basin driven by coal mining
Characteristics of groundwater circulation and evolution in Yanhe spring basin driven by coal mining
Abstract
The Yanhe spring basin located in the Jindong coal base is relatively short of water resources and the ecological environment is fragile. With the large-scale mini...
Origins of Groundwater Inferred from Isotopic Patterns of the Badain Jaran Desert, Northwestern China
Origins of Groundwater Inferred from Isotopic Patterns of the Badain Jaran Desert, Northwestern China
There are many viewpoints about the sources of groundwater in the Badain Jaran Desert (BJD), such as precipitation and snowmelt from the Qilian Mountains (the upper reaches [UR] of...
Indicator-based assessment of groundwater resources sustainability in South Korea
Indicator-based assessment of groundwater resources sustainability in South Korea
Groundwater level decline and quality deterioration is continuously observed nationwide in South Korea. Meanwhile, the demand for groundwater, which is relatively stable and clean ...