Article
Engineering, Civil
Mi Jeong Seo, Kyungsoo Han, Jong-Bae Park, Kyeong-Han Jeong, Jong-Sub Lee
Summary: This study investigates the effects of incorporating inclined base plates on the end bearing capacities of embedded piles through dynamic pile tests and static load tests. Results show that base resistances are greater in piles with inclined base plates compared to conventional piles, leading to increased end bearing capacities.
GEOMECHANICS AND ENGINEERING
(2021)
Article
Engineering, Geological
Meng-Xiong Tang, Bo Li, Chun-Lin Liu, Zao Ling, Ding-Li Su, Zhen-Kun Hou
Summary: This paper presents field test results on the bearing capacity of prestressed concrete (DPC) pipe piles with different end sealing and side grouting conditions. The High Strain Dynamic Testing (HSDT) was used to evaluate the bearing characteristics of full-scale DPC pipe piles. Theoretical formulas considering end sealing and side grouting effects were presented and compared with specification values and tested values, demonstrating their rationality and the advantages of end sealing and side grouting.
Article
Chemistry, Multidisciplinary
Dezhi Kong, Heng Li, Wensong Gan
Summary: The study used the load-transfer method to analyze the load-bearing characteristics of bored piles and investigated the effects of different grouting methods. The results showed that side grouting significantly improved both pile tip resistance and side frictional resistance, while tip-side composite grouting had the most significant improvement on both factors.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Geological
Shan-wei Liu, Qian-qing Zhang, Hai-tao Li, Xian-tao Yu, Gui-hai Liu, Wei Cui
Summary: Post-grouting technology is commonly used to enhance the ultimate bearing capacity and reduce the settlement of bored piles. A load transfer model considering the time-varying characteristics of slurry viscosity was established for the analysis of the combined side-and-tip grouting pile in layered soils. The reliability of the calculation method was validated through comparisons between measured and computed results of well-documented cases, and a parameter study was conducted to assess the influence of various factors on the load-settlement relationship of single piles with different grouting types.
Article
Chemistry, Multidisciplinary
Fei Meng, Yipu Peng
Summary: This study compares the load-bearing characteristics of bag grouting piles and cement mixing piles in soft soil areas. Field tests and numerical simulations are conducted to analyze the compressive bearing characteristics of bag grouting piles. The results show that bag grouting piles are more effective than cement mixing piles in transferring load from the top of the pile to the soil at the bottom of the pile, and pile diameter is the most important factor influencing the compressive bearing characteristics.
APPLIED SCIENCES-BASEL
(2023)
Article
Computer Science, Interdisciplinary Applications
Yuting Zhang, Jinsong Huang, Anna Giacomini
Summary: This paper proposes a probabilistic approach based on Bayes' theorem and the First Order Reliability Method (FORM) to calibrate resistance factors for different numbers of load tests and the corresponding test results. The results show that resistance factors are significantly increased even if only one positive test is observed among all the tests. Differences in resistance factors between various design methods are significantly reduced if one or more tests are positive for low variability sites, while for high variability sites, the differences in resistance factors are only slightly decreased, indicating the importance of considering design methods in such cases.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Ecology
Zhenkun Hou, Zhanlin Li, Zejun Han, Mengxiong Tang, Yupeng Liu, Dingli Su, Lei Wang
Summary: A physical grouting model testing system for DPC piles has been developed, which utilizes a high-precision 3D scanner and a multi-functional grouting box to quantitatively characterize the 3D geometric dimensions of the grouting stone. The thickness of the grouting body decreases as the horizontal distance from the grouting outlet increases, and the grouting pressure should not be less than 0.6 MPa for a water-cement ratio of 0.5.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2023)
Article
Engineering, Civil
Mi Jeong Seo, Jong-Bae Park, Dongsoo Lee, Jong-Sub Lee
Summary: This study proposes a resistance combination method for dynamic pile tests, which accurately evaluates the bearing capacity of embedded piles by combining the base resistance before the cement paste is cured and the shaft resistance after the cement paste is cured.
GEOMECHANICS AND ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Xuan Guo, Zhitong Li, Xiaoli Zhang, Mengjun Pu
Summary: The study conducted model tests to investigate the response of surrounding rock and piles induced by an advanced shield tunnel in silty clay layer in a coastal area. Conclusions were drawn regarding the optimal grouting filling coefficient, changes in K value of surrounding rock, and division of weak surrounding rock into different zones based on displacement and pressure changes.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Geological
Gang-qiang Kong, Zhi-peng Liu, Le-hua Wang, Han-long Liu, Qing Yang
Summary: This paper presents a study on a new type of shaped pile compared to traditional circular piles. The results show that the shaped pile has a higher bearing capacity and performs well under different loading conditions such as oblique pullout, pure lateral, and vertical pullout. The research provides important guidance for the foundation design of power transmission towers and photovoltaic panels.
Article
Engineering, Civil
Costas A. Anagnostopoulos, Melina Dimitriadi, Dimitrios Konstantinidis
Summary: The present study conducted laboratory tests to investigate the positive effect of amino-based epoxy resin grouts or epoxy resin grouts containing low amounts of bentonite on the strength of medium to fine sands. The results showed that the addition of epoxy resin with small dosages of bentonite significantly improved the strength of the sands under monotonic or cyclic loading. The grouted specimens had higher compressive strength, elastic modulus, friction angle and cohesion compared to the ones without bentonite content. Additionally, the grouted samples exhibited enhanced cyclic resistance and failure occurred at higher stress levels and after a larger number of loading cycles compared to their un-grouted or pure epoxy resin grouted counterparts.
TRANSPORTATION GEOTECHNICS
(2022)
Article
Green & Sustainable Science & Technology
Xusen Li, Jiaqiang Zhang, Hao Xu, Zhenwu Shi, Qingfei Gao
Summary: The ultimate bearing capacity (UBC) of PHC pipe piles is mainly provided by the pile shaft resistance (PSR) with the pile tip resistance (PTR) also playing a role; factors influencing the UBC include friction coefficient, outer-to-inner diameter ratio, and pile length increase sharply affecting the UBC; low temperatures can cause freezing stress at the pile-soil interface, while changing the Young modulus of pile tip soil has a relatively small effect.
Article
Engineering, Civil
Xiaole Dong, Xiaohui Tan, Xin Lin, Xuejuan Zhang, Xiaoliang Hou, Daoxiang Wu
Summary: A reliability analysis method based on proof load-settlement data is proposed in this study, which can accurately estimate the ultimate bearing capacity of piles and analyze their reliability.
GEOMECHANICS AND ENGINEERING
(2022)
Article
Energy & Fuels
Yunsup Shin, Thomas Langford, Kyunghwan Cho, Jongheon Park, Junyoung Ko
Summary: Research has shown that offshore wind-turbine support structures are increasingly using concrete-steel composite piles to reduce the exponential increase in material and installation costs. Experimental results have established a site-specific lateral load-displacement curve and verified the connection integrity.
Article
Chemistry, Physical
Lukasz Zwara, Lech Balachowski
Summary: This paper presents the application of different CPT methodologies in predicting pile shaft resistance in tension. Through the case study of three reference screw piles in Poland, it was found that the AFNOR method provides the most accurate estimation of the ultimate bearing capacity, while other methods significantly underestimate this value.
Article
Thermodynamics
Zhijun Zhou, Qi Zhang, Liping Chen
Summary: This study focuses on determining intrinsic kinetic parameters and interpreting and simulating the rate profile of coal char. It analyzes the reactivity of coal char at different temperatures, discusses the weight loss process in non-isothermal conversion, and studies the effects of kinetic analysis methods. It also examines the rate profiles of isothermal conversion and the influence of particle temperature. Finally, an intrinsic reaction model is developed to reproduce the rate profile of isothermal conversion accurately.
COMBUSTION SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Huan Luo, Jiayi Li, Bo Song, Bing Zhang, Yixi Li, Zhijun Zhou, Xiuli Chang
Summary: This study explored the toxicity of lithium, lead, and manganese on neural stem cell proliferation, as well as their combined effects. The results showed that the combination of lead and manganese had a synergistic toxicity effect in both models. In the dose-additivity method, mixtures with a high ratio of lithium exhibited synergistic effects, while mixtures with a lower or equal lithium ratio showed antagonistic effects. Additionally, the interactions of lithium and manganese mixtures varied across different endpoints.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Cell Biology
Bo Song, Yuwei Zhang, Guiya Xiong, Huan Luo, Bing Zhang, Yixi Li, Zhibin Wang, Zhijun Zhou, Xiuli Chang
Summary: Cadmium (Cd) is an environmental pollutant that has adverse effects on neuronal maturation. This study used single-cell RNA sequencing to uncover the molecular mechanisms of Cd on neuronal lineage cells. The results showed that Cd alters the trajectory of neuronal maturation, induces differential transcriptome expression, and affects oxidative damage and cell cycle phases. In addition, Cd downregulates the autocrine and paracrine signals of Wnt5a. Activation of Wnt5a effectively rescues neuronal development and promotes maturation.
CELL BIOLOGY AND TOXICOLOGY
(2023)
Editorial Material
Dermatology
Zhijun Zhou, Na Li, Huicheng Li, Luhuai Shi, Yangmin Gao, Weijun Liu, Xiaobing Wang, Hua Qian, Xiaoguang Li
INTERNATIONAL JOURNAL OF DERMATOLOGY
(2023)
Article
Environmental Sciences
Jiayun Ding, Yiming Dai, Jiming Zhang, Zheng Wang, Lei Zhang, Sinan Xu, Ruonan Tan, Jianqiu Guo, Xiaojuan Qi, Xiuli Chang, Chunhua Wu, Zhijun Zhou
Summary: This study found significant associations between in utero PFAS levels and adipocytokine concentrations, suggesting that exposure to a mixture of PFAS during pregnancy may lead to decreased fetal leptin levels but increased adiponectin levels, with potential sex-specific effects.
ENVIRONMENTAL RESEARCH
(2023)
Article
Energy & Fuels
Zhuoyou Gao, Zhijun Zhou, Mengying Wang, Ningzhao Shang, Wei Gao, Xiang Cheng, Shutao Gao, Yongjun Gao, Chun Wang
Summary: This study presents an efficient method to fabricate highly dispersed Pd-PTA/ZrO2 catalysts and demonstrates their superior catalytic performance for the hydrodeoxygenation of lignin-derivatives under mild conditions.
Article
Engineering, Biomedical
Guangwei Mao, Zhijun Zhou, Hao Su, Yaozhong Chen, Jianjun Zhang, Chiyuan Zhang, Zhigong Wang, Xiaoying Lu
Summary: This paper proposes an ESCS system for animal experimental study, which provides a fully implantable and programmable stimulating system for complete SCI rat model, along with a wireless charging power solution. The system consists of an implantable pulse generator (IPG), a stimulating electrode, an external charging module, and an Android application (APP) via a smartphone. The results of the animal experiment show that the stimulating system can work stably in SCI rats, effectively activating the lower limb muscles and providing an effective tool for studying the ESCS application in motor function recovery.
IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING
(2023)
Article
Agriculture, Multidisciplinary
Jie Li, Yushi Yang, Zhijun Zhou, Shuofeng Li, Lin Hao, Weihua Liu, Zhi Wang, Qiuhua Wu, Chun Wang
Summary: A novel fluorine-functionalized triazine-based porous organic polymer (F-POP) was developed for the adsorption of aflatoxins. The F-POP demonstrated superior adsorption ability due to multiple interaction mechanisms, including hydrogen bond, F-O interaction, pi-pi interaction, F-pi interaction, and hydrophobic interaction. Furthermore, magnetic F-POP was prepared and used as a magnetic sorbent for the extraction of trace aflatoxins in peanut and rice samples.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Chemistry, Analytical
Zixuan Cai, Zhijun Zhou, Bin Zhao, Sicheng Ma, Lin Hao, Weihua Liu, Qianqian Wang, Zhi Wang, Qiuhua Wu, Chun Wang
Summary: In this study, novel magnetic hypercrosslinked polymers were successfully fabricated and applied for the enrichment of chlorophenols in environmental water, peach beverage, and honey samples. The method showed good linearity, low detection limits, and high recoveries, making it a promising alternative for the detection of chlorophenols in complex matrix samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Evolutionary Biology
Qidi Zhu, Zhijun Zhou, Qi Guo, Yanhao Duan, Haijian Wang, Fuming Shi
Summary: This study provides the first phylogenetic and biogeographical analyses of Diestramimini, showing its sister-group relationship with Diestramima + Tamdaotettix and Arboramima + Gigantettix. A new genus, Bidiestramima, is established and a new species, Bidiestramima hekouensis, is described. The diversification of Diestramimini is attributed to dispersal and vicariance events influenced by the uplift of the Himalaya-Tibetan Plateau, the formation of the monsoon, and climate fluctuations.
Article
Microbiology
Qing-mei Li, Dai Zhang, Ji-zong Zhang, Zhi-jun Zhou, Yang Pan, Zhi-hui Yang, Jie-hua Zhu, Yu-hua Liu, Li-feng Zhang
Summary: Continuous cropping of the same crop leads to soil degradation and a decline in crop production, but these impacts could be mitigated through rotation cropping. This study compared the effects of potato continuous cropping and rotation cropping (potato-oat and potato-forage maize) on soil ecosystem multifunctionality (EMF). The results showed that rotation cropping enhanced soil EMF, microbial diversity, and potato yield.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Immunology
Weijun Liu, Huicheng Li, Yun Jin, Lifang Cheng, Luhuai Shi, Yangmin Gao, Zhijun Zhou, Suying Feng, Hua Qian, Takashi Hashimoto, Xiaoguang Li
Summary: Mucous membrane pemphigoid (MMP) is a challenging autoimmune bullous disease that affects various mucosae and sometimes presents with skin lesions. The pathogenesis of MMP remains unclear, despite the identification of multiple autoantigens.
FRONTIERS IN IMMUNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Zhijun Zhou, Chunxue Cui, Da Zheng, Kai Li, Yinglong Xuan, Chunyao Wang
Summary: This paper derives a prediction model for the transient productivity of perforated herringbone wells, considering the mutual interference between branches and perforations. The influence of different perforation schemes on productivity is studied, and selective completion perforation technology is adopted to improve the productivity of herringbone wells.
Editorial Material
Public, Environmental & Occupational Health
Meibian Zhang, Gaku Ichihara, Zhijun Zhou, Jianlin Lou, Dongming Wang
FRONTIERS IN PUBLIC HEALTH
(2023)
Article
Engineering, Chemical
Yuzhe Cao, Zhijun Zhou, Tongyu Zhang, Zejuan Ni, Bo Ge, Hao Zhang, Guina Ren, Xin Shao, Zhaozhu Zhang
Summary: A solar-driven photothermal evaporation device with salt-resistance and the ability to remove dye and oil slicks has been developed to overcome the limitations of existing devices. The device uses a superhydrophobic part to eliminate dye and oil slicks, protecting both the device and the environment. It achieves a purification efficiency of over 99.9% for heavy metal ions and Rh B solution. The device also demonstrates high evaporation rates under one sun illumination for different water sources, indicating its potential for desalination and wastewater purification.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Civil
Xuyang Wu, Fujun Niu, Qingguo Liang, Chunqing Li, Zhanju Lin
Summary: This paper discusses the deformation characteristics and structural strength anisotropy of loess through experimental testing and microscopy analysis.
TRANSPORTATION GEOTECHNICS
(2024)
Article
Engineering, Civil
Zhou Yang, Xiaohui Cheng
Summary: This study examines the stability of high fill slopes using finite element limit analyses. The results show that the original slope stability was overestimated based on laboratory shear tests, and the reinforcement with stabilizing piles was ineffective. The safety factor of the pile-reinforced slope considering rainfall infiltration was 0.95. Random field limit analyses indicated an increased failure probability under assumed rainfall infiltration conditions.
TRANSPORTATION GEOTECHNICS
(2024)
