A5100342433- Soil and Unsaturated Flow
- Landslides and related hazards
- Rock Mechanics and Modeling
- Tunneling and Rock Mechanics
- Climate change and permafrost
- Drilling and Well Engineering
- Geotechnical Engineering and Underground Structures
- Dam Engineering and Safety
- Cryospheric studies and observations
- Geotechnical Engineering and Analysis
- Groundwater flow and contamination studies
- Geotechnical Engineering and Soil Stabilization
- Geomechanics and Mining Engineering
- Grouting, Rheology, and Soil Mechanics
- Geotechnical Engineering and Soil Mechanics
- Smart Materials for Construction
- Geoscience and Mining Technology
- Numerical methods in engineering
- Structural Health Monitoring Techniques
- Mineral Processing and Grinding
- Civil and Geotechnical Engineering Research
- Metallurgy and Material Forming
- Structural Engineering and Vibration Analysis
- Geophysical Methods and Applications
- Concrete and Cement Materials Research
Beijing Jiaotong University
2016-2025
Anhui University of Science and Technology
2022-2024
NOAA National Centers for Environmental Prediction
2024
NOAA Environmental Modeling Center
2024
Shandong University of Science and Technology
2021-2024
UNSW Sydney
2020-2024
Shenzhen University
2022-2024
CHN Energy (China)
2024
National Institute of Clean and Low-Carbon Energy
2024
Ministry of Transport
2016-2023
ABSTRACT: We document systematic evidence of risk effects disclosures culled from a virtually exhaustive set sources the print medium. content analyze more than 100,000 disclosure reports by management, analysts, and news reporters (i.e., business press) in constructing firm-specific measures that are quantitative amenable to replication. expect credibility timeliness differences source, which would translate into differential cost capital effects. find when analysis indicates favorable...
This review summarizes the research outcomes and findings documented in 45 journal papers using a shared tunnel boring machine (TBM) dataset for performance prediction efficiency optimization learning methods. The big was collected during Yinsong water diversion project construction China, covering excavation of 20 km-section with 199 items monitoring metrics taken an interval one second. were result call contributions TBM contest 2019 covered variety topics related to intelligent TBM....
The microporosity structure of soil provides important information in understanding the shear strength, compressibility, water-retention ability, and hydraulic conductivity soils. It is a characteristic that depends on sample preparation method wetting–drying history. A comprehensive study lean clay with sand was conducted this research to investigate variations during compaction, saturation, drying processes. Scanning electron microscopy used observe surfaces. Mercury intrusion porosimetry...
This study attempts to use a dam breach model reproduce the well-monitored outflow hydrograph obtained during breaching process of Tangjiashan barrier lake, which was formed by landslide triggered Wenchuan earthquake on May 12, 2008 in China. The key parameters that affect results, such as soil erosion and lateral enlargement, are reviewed using field measurements followed extensive sensitivity studies. present paper advocates hyperbolic for rate circular slip surface approach contribute...
This review discusses the application scenarios of machine learning-supported performance prediction and optimization efficiency tunnel boring machines (TBMs). The rock mass quality ratings, which are based on Chinese code for geological survey, were used to provide "labels" suitable supervised learning. As a result, generation grades reasonably agreed with ground truth documented in maps. In contrast, main operational parameters, i.e., thrust torque, can be predicted historical data....
The soil freezing characteristic curve (SFCC) plays a fundamental role in comprehending thermo-hydraulic behavior and numerical simulation of frozen soil. This study proposes dynamic model to uniformly express SFCCs amidst varying total water contents throughout the freezing-thawing process. Firstly, general is proposed, wherein unfrozen content at arbitrary temperature determined as lesser current reference value derived from saturated SFCC. performance this verified through test data....
Abstract The soil freezing characteristic curve (SFCC) is used as a tool for interpreting various properties of frozen soils such hydraulic conductivity, volume change, and shear strength. Existing SFCC models are commonly based on empirical relationships, pore size distribution (POSD), or adaptations the Soil‐Water Characteristic Curve (SWCC). Empirical often lack theoretical foundation, limiting their general applicability. Experimental evidence suggests that matric suction at given...
To date the microporosity structures of coarse soils with various coarse/fines contents are still not fully understood. In this study, pore-size distributions (PSDs) five types soil varying from gravel to clay were characterized using mercury intrusion porosimetry. The a content below 70% (i.e., fines above 30%) is found have fines-controlled microstructure, which sensitive water changes. Such forms dual-porosity structure due compaction, in both intraaggregate pores and interaggregate...
Unsaturated hydraulic conductivity is the primary soil parameter required when performing seepage analyses for unsaturated–saturated systems. also one of most difficult parameters to measure because time involved and limited suction measurement range (e.g., 0∼1500 kPa in a test using steady-state method). In this study, new wetting front advancing method was developed measuring unsaturated conductivity. The simulates monitors process through large-scale column. A interpretative procedure...
Cracks are widely present in natural and engineered soils. As water infiltration into a cracked soil often starts from unsaturated conditions, the soil-water characteristic curve (SWCC) permeability function for required when conducting seepage analysis. This paper presents method to predict SWCC considering crack volume changes during drying–wetting processes. The is viewed as an overlapping continuum of network system matrix system. pore-size distributions two pore systems at particular...