Article
Geosciences, Multidisciplinary
Jianghao Qiao, Xiwu Luan, Thanuja D. Raveendrasinghe, Yintao Lu, Guozhang Fan, Xinyuan Wei, Long Jin, Jian Yin, Haozhe Ma, Lushan Jiang
Summary: This study investigates the Tanintharyi passive continental margin in the Andaman Sea and reveals the potential of the Oligocene/Early Miocene carbonate platform in the region as a significant hydrocarbon reservoir. It also examines the influence of changes in sedimentary facies and the tectonic setting of the Andaman Sea on the evolution of pockmarks.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Engineering, Geological
Rui Zhang, Xiangqian Sheng, Wenliang Fan
Summary: This study introduces a novel approach for the probabilistic assessment of seismic earth pressure against nonlinear backfills. Nonlinear upper bound analysis is used to obtain the seismic earth pressure through optimization procedure, and probability analysis of nonlinear backfill properties is considered by combining adaptive dimension decomposition with the direct integral method.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2024)
Article
Engineering, Environmental
Guanjun Wei, Chuanjin Lei, Maoning Gao, Hongyu Zhou, Xin Li, Chaoyue Zhang
Summary: This study introduces a novel approach to improve the accuracy of deformation prediction in frozen soil areas by integrating post-processing deformation from InSAR with a frost heave model using the EnKF assimilation algorithm. Experimental results show that this approach reduces the RMSE to 0.247 mm, indicating its high feasibility and practicality.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Computer Science, Interdisciplinary Applications
Zhichao Zhang, Mingfei Feng, Guangshuo Zhou, Zhenglong Xu
Summary: A thermodynamic constitutive model for structured and destructured clays is proposed in this paper. The model includes state-dependent relations of hyperelasticity and plasticity without the concept of yielding surface. The proposed model captures the couplings between elasticity and plasticity and the effects of bonding structure.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Zhijun Wu, You Wu, Lei Weng, Mengyi Li, Zhiyang Wang, Zhaofei Chu
Summary: This study proposed a machine learning approach to predict the uniaxial compression strength (UCS) and elastic modulus (E) of rocks. By measuring meso-mechanical parameters and developing grain-based models, a database with 225 groups of data was established for prediction models. The optimized kernel ridge regression (KRR) and gaussian process regression (GPR) models achieved excellent performance in predicting UCS and E.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Xin Li, George Kouretzis, Klaus Thoeni
Summary: This paper presents a numerical methodology for efficient modeling of kinematic granular soil-pipe interaction at large deformations using the Discrete Element Method. The methodology is validated through standard tests and blind predictions, providing insights into the reaction and flow-around failure mechanism of deeply buried pipes.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Jinhui Li, Dong Guo, Zuyu Chen, Xu Li, Zhaofeng Li
Summary: This study proposes a transfer learning model that uses data from existing tunnels to predict the tunnel boring machine (TBM) responses for a new construction. The study investigates the key problem of transfer learning - what to transfer - based on big data from two projects in China. Results show that the types of transferred TBM parameters significantly affect prediction accuracy, and a filter procedure is proposed to determine the number and types of parameters to be transferred. The proposed model demonstrates superior capability in predicting TBM responses and warning of potential collapses in a new tunnel project.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Geosciences, Multidisciplinary
Jue Peng, Junguang Wang, Qingsong Yang, Ling Long, Huiyan Li, Zhonglu Guo, Chongfa Cai
Summary: The spatial variations in soil aggregate stability and erodibility in the Mollisol region of northeast China are influenced by soil properties, particularly total nitrogen, soil organic carbon, and bulk density. Factors such as available potassium, saturated conductivity, and soil texture also play important roles in driving the variations of soil aggregate stability and erodibility.
Article
Geosciences, Multidisciplinary
Thais N. Pessoa, Rafael S. Santos, Paulo L. Libardi, Igor R. de Assis, Teogenes S. Oliveira
Summary: The intensification of agricultural systems, such as vegetable production, to meet the global food demand has led to increased soil compaction and changes in soil physical properties. This study investigated the effects of vegetable cropping systems on highly weathered Oxisols in the Brazilian Cerrado biome. The results showed that these systems promoted soil compaction, reduced soil porosity, and negatively impacted soil functions and ecosystem services. Improving soil management strategies is crucial for restoring soil functionality and ensuring the long-term sustainability of food production.
Article
Geosciences, Multidisciplinary
Matthew Canti, Francesca Gherardi, Rowena Banerjea
Summary: Large amounts of calcium carbonate nanofibres were found in buried archaeological stratigraphy made of recarbonated lime, which could be associated with the manufacture or use of lime products. The phenomenon is widespread, occurring in examples from UK, Latvia, and related nanosized material from Spain. However, the reason for nanofibrous crystallisation in these situations is not currently understood.
Article
Geosciences, Multidisciplinary
Anais Zimmer, Timothy Beach, Sheryl Luzzadder-Beach, Antoine Rabatel, Rolando Cruz Encarnacion, Joshua Lopez Robles, Edison Jara Tarazona, Arnaud J. A. M. Temme
Summary: Climate warming has accelerated glacial retreat and soil formation in mountainous regions. The accumulation of soil organic carbon and nitrogen is influenced by environmental factors, with maximum temperature and initial site conditions playing important roles in soil development.
Article
Geosciences, Multidisciplinary
Ren-Min Yang, Lai-Ming Huang, Feng Liu
Summary: This study investigated the soil organic carbon (SOC) stocks in seasonally frozen ground (SFG) in the Tibet Autonomous Region, China, in 2020 and 2021, and explored the effects of various factors on SOC using partial least squares structural equation modeling (PLS-SEM). The results showed that C inputs exerted the greatest control on SOC, and the influence of these factors decreased with increasing soil depth. Additionally, timely spatial SOC estimates were found to be important for assessing carbon stocks in the context of environmental changes.
Article
Geosciences, Multidisciplinary
Khalid M. Ghasera, Shaik A. Rashid
Summary: This study compares weathering profiles developed on granite and basalt rocks under different climatic conditions in India. The results show the significance of climate conditions and lithology in controlling weathering advancement. The distribution of major oxides and trace elements is influenced by weathering intensity and formation of secondary minerals. The principal component analysis reveals three components that account for a significant portion of the variance, related to weathering intensity, lithology, and location-specific factors.
Article
Geosciences, Multidisciplinary
Shurui Lin, Qing Zhu, Kaihua Liao, Xiaoming Lai, Changqiang Guo
Summary: This study tested different methods for generating accurate SOCD maps in the Yangtze River Delta, using soil samples and published literature. Artificial neural network (ANN) and multiscale geographically weighted regression (MGWR) performed well in capturing the spatial pattern and accuracy measures, respectively. Fusion models improved the accuracy compared to individual methods, with the MGNW_F model performing the best. Additional soil samples and method fusion have the potential to enhance the accuracy of SOCD mapping.
Article
Geosciences, Multidisciplinary
Cho-Yin Wu, Franz Zehetner, Zueng-Sang Chen, Shih-Hao Jien, Zeng-Yei Hseu
Summary: This study investigated the distribution of rare earth elements (REEs) in soils at different elevations in the Central Mountain Range of Taiwan and its relationship with climatic changes. The results showed that REE content decreased with increasing elevation and rainfall. Clay content was correlated with REEs, with heavy REEs preferentially sequestered by the soil. These findings suggest a relationship between soil development and REE fractionation.
Article
Geosciences, Multidisciplinary
Wei Liu, Bo Wan
Summary: Magmatic-hydrothermal systems play a crucial role in transporting materials and potentially affecting Earth's long-term environment. This study investigates the duration of prograde metamorphism induced by fluid infiltration and the amount of carbon released by skarn ore deposits. The findings reveal that skarn ore deposits can efficiently decarbonize CO2 at a high rate, surpassing volcanism in different tectonic settings. The CO2 flux of skarn deposits increases over time and reaches a maximum value at the J/K boundary, providing an important previously unquantified source of outgassing in the subduction zone.
Article
Geosciences, Multidisciplinary
Qi Huang, Yongqiang Zhang, Haoshan Wei
Summary: Direct streamflow outputs from CMIP6 models are important for studying future water supply under climate change. However, the accuracy of these data is still debated, and the relevant variables cannot fully explain the observed streamflow change.
Article
Geosciences, Multidisciplinary
Sara Cucchiaro, Lorenzo Martini, Eleonora Maset, Giacomo Pellegrini, Maria Eliana Poli, Alberto Beinat, Federico Cazorzi, Lorenzo Picco
Summary: In the past decade, accurate, sustainable, and effective planning of torrent control structures has become essential to reduce hydro-geomorphic risk. High-Resolution Topography data greatly simplifies the monitoring of sediment morphology dynamics and the understanding of the interaction with torrent control structures. Combining field surveys can provide valuable information for watershed management plans.
Article
Geosciences, Multidisciplinary
Ge Yan, Dingyang Lu, Sijin Li, Shouyun Liang, Liyang Xiong, Guoan Tang
Summary: This study introduces the priority-flood flow direction algorithm to improve the generation of slope units and compares them to slope units based on the subbasin division method in landslide susceptibility maps (LSMs). The results show that the improved slope units perform better at large scales, reducing striped distributions and optimizing patterns in the LSMs. Therefore, the PFD algorithm is valuable for large-scale research.
Article
Geosciences, Multidisciplinary
Hikmat Salam, Syed Ali Turab, Asghar Ali, M. Qasim Jan, Norasiah Sulaiman, Mohd Basril Iswadi Basori
Summary: The Kahi melange complex in NW Pakistan is an important record of the tectonic evolution between the Indian plate and the Afghan block, consisting of highly dismembered ophiolitic and sedimentary units.
