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Bearing capacity and load transfer mechanism of a static drill rooted nodular pile in soft soil areas

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2013年第10期14卷 705-719页

作者： Jia-jin ZHOU Kui-hua WANG Xiao-nan GONG ri-hong zhang Research Center of Coastal and Urban Geotechnical Engineering Zhejiang University ZDOON Building Material Group

The static drill rooted nodular pile is a new type of pile foundation consisting of precast nodular pile and the surrounding cemented *** composite pile has a relatively high bearing capacity and the mud pollution will be largely reduced during the construction process by using this type of *** order to investigate the bearing capacity and load transfer mechanism of this pile,a group of experiments were conducted to provide a comparison between this new pile and the bored *** axial force of a precast nodular pile was also measured by the strain gauges installed on the pile to analyze the distribution of the axial force of the nodular pile and the skin friction supported by the surrounding soil,then 3D models were built by using the ABAQUS finite element program to investigate the load transfer mechanism of this composite pile in *** combining the results of field tests and the finite element method,the outcome showed that the bearing capacity of a static drill rooted nodular pile is higher than the bored pile,and that this composite pile will form a double stress dispersion system which will not only confirm the strength of the pile,but also make the skin friction to be fully *** settlement of this composite pile is mainly controlled by the precast nodular pile;meanwhile,the nodular pile and the surrounding cemented soil can be considered as deformation compatibility during the loading *** nodes on the nodular pile play an important role during the load transfer process,the shear strength of the interface between the cemented soil and the soil of the static drill rooted pile is larger than that of the bored pile.

关键词： Static drill rooted nodular pile Load transfer Bearing capacity ABAQUS Double stress dispersion system Three-dimensional modeling

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带承台静钻根植竹节桩抗压承载性能试验研究（英文）

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2015年第12期16卷 951-963页

作者： Jia-jin ZHOU Xiao-nan GONG Kui-hua WANG ri-hong zhang Research Center of Coastal and Urban Geotechnical Engineering Zhejiang University Research and Development Department ZCONE High-tech Pile Industry Holdings Co.Ltd.

目的:研究带承台静钻根植竹节桩的抗压承载性能,承台在荷载传递过程中所起作用,带承台静钻根植竹节桩的桩侧摩擦性能和桩端承载性能。创新点:通过带承台静钻根植竹节桩的现场静载试验对其抗压承载性能进行分析。方法:在预制桩制作过程... 详细信息

目的:研究带承台静钻根植竹节桩的抗压承载性能,承台在荷载传递过程中所起作用,带承台静钻根植竹节桩的桩侧摩擦性能和桩端承载性能。创新点:通过带承台静钻根植竹节桩的现场静载试验对其抗压承载性能进行分析。方法:在预制桩制作过程中在桩身安置钢筋应力计(图1),通过含有钢筋应力计的试桩的静载试验对其抗压承载性能(图7和8)、各级荷载作用下的桩身轴力(图9和10)、承台承载性能(图11和12)、桩侧摩擦性能(图18)以及桩端承载性能(图19和20)进行分析与研究。结论:1.静钻根植工法通过搅拌注浆能够改善承台下部土体性质,在静钻根植桩中设置承台能充分发挥静钻根植工法的优势,在该种桩基中设置承台比较合适;2.承台的存在使桩周土体产生沉降,使得试桩上部桩土相对位移较小,从而使试桩上部桩侧摩阻力减小,试桩下部土体所提供的侧摩阻力相比灌注桩都有所提高;在粘性土中试桩桩侧摩阻力值为灌注桩的1.25倍,在砂性土中达到2倍,说明试桩中水泥土-土体接触面摩擦性能优于灌注桩混凝土-桩周土体接触面的摩擦性能,且在砂性土中提高程度更大;试桩桩端荷载位移曲线基本呈线性,与双折线模型相似;由于有水泥土的渗入,桩端土的强度得到提高,使桩端承载性能也得到提高。

关键词：静钻根植工法竹节桩承台桩侧摩阻力桩端阻力

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Standardizing the classification of gastric cancer patients with limited and adequate number of retrieved lymph nodes:an externally validated approach using real-world data

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Military Medical Research 2022年第5期9卷 565-575页

作者： Wei Wang Yu-Jie Yang ri-hong zhang Jing-Yu Deng Zhe Sun Sharvesh Raj Seeruttun Zhen-Ning Wang Hui-Mian Xu Han Liang Zhi-Wei Zhou Department of Gastric Surgery Sun Yat-sen University Cancer CenterGuangzhou 510060China State Key Laboratory of Oncology in South China Collaborative Innovation Center for Cancer MedicineGuangzhou 510060China Department of Gastric Cancer Surgery Tianjin Medical University Cancer Institute and HospitalTianjin 300000China Department of Surgical Oncology the First Hospital of China Medical UniversityShenyang 110000China

Background:Currently,there is no formal consensus regarding a standard classification for gastric cancer(GC)patients with<16 retrieved lymph nodes(rLNs).Here,this study aimed to validate a practical lymph node(LN)stag... 详细信息

Background:Currently,there is no formal consensus regarding a standard classification for gastric cancer(GC)patients withrieved lymph nodes(rLNs).Here,this study aimed to validate a practical lymph node(LN)staging strategy to homogenize the nodal classification of GC cohorts comprising of bothrican Joint Committee on Cancer(AJCC)pathological nodal classification(pN)for GC as base,a modified nodal classification(N’)resembling similar analogy as the 8th AJCC pN classification was *** performance of the proposed and 8th AJCC GC subgroups was compared and validated using the Surveillance,Epidemiology,and End Results(SEER)dataset comprising of 10,208 multi-ethnic GC ***:Significant difference in OS between the Limited and Adequate set(corresponding N0–N3a)using the 8th AJCC system was observed but the OS of N0_(limited)vs.N1_(adequate),N1_(limited)vs.N2_(adequate),N2_(limited)vs.N3_(aadequate),and N3_(alimited)vs.N3_(badequate)subgroups was almost similar in the Chinese ***,we formulated an N’classification whereby only the nodal subgroups of the Limited set,except for pT1N0M0 cases as they underwent less extensive surgeries(D1 or D1+gastrectomy),were re-classified to one higher nodal subgroup,while those of the Adequate set remained unchanged(N’0=N0_(adequate)+pT1N0M0_(limited),N’1=N1_(adequate)+N0_(limited)(excluding pT1N0M0_(limited)),N’2=N2_(adequate)+N1_(limited),N’3a=N3_(aadequate)+N2_(limited),and N’3b=N3_(badequate)+N3_(alimited)).This N’classification demonstrated less heterogeneity in OS between the Limited and Adequate *** analyses demonstrated superior statistical performance of the pTN’M system over the 8th AJCC edition and was successfully validated using the SEER

关键词： Lymph nodes Limited Adequate Gastric cancer American Joint Committee on Cancer Tumor-node-metastasis Staging system Overall survival

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水泥土性质对静钻根植竹节桩抗压承载性能影响（英文）

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2018年第7期19卷 534-543页

作者： Jia-jin ZHOU Xiao-nan GONG Kui-hua WANG ri-hong zhang Guo-lin XU Research Center of Coastal and Urban Geotechnical Engineering Zhejiang University Hangzhou 310058 China MOE Key Laboratory of Soft soils and geoenvironmental Engineering Zhejiang University Hangzhou 310058 China ZCONE High-tech Pile Industry Holdings Co. Ltd. Ningbo 315000 China

目的:静钻根植竹节桩是一种由预制竹节桩和水泥土组成的组合桩基。通过一系列水泥土试块的无侧限抗压强度试验和静钻根植竹节桩的单桩模型试验,研究水泥土性质对静钻根植竹节桩抗压承载性能的影响。得出水泥土强度的提高对静钻根植竹节... 详细信息

目的:静钻根植竹节桩是一种由预制竹节桩和水泥土组成的组合桩基。通过一系列水泥土试块的无侧限抗压强度试验和静钻根植竹节桩的单桩模型试验,研究水泥土性质对静钻根植竹节桩抗压承载性能的影响。得出水泥土强度的提高对静钻根植竹节桩桩侧和桩端承载性能的影响规律,为静钻根植竹节桩的设计和推广应用提供理论依据。创新点:1.得出静钻根植竹节桩桩端扩大头中水泥土强度的提高对其桩端承载性能的影响规律;2.得到静钻根植竹节桩桩周水泥土强度的提高对其桩侧摩擦性能的影响规律。方法:1.通过改变静钻根植竹节桩桩端扩大头的水泥土强度的模型试验,得到桩端水泥土强度的提高对桩基桩端承载性能的影响规律;2.通过桩周水泥土强度不同的静钻根植竹节桩的模型试验,得出静钻根植竹节桩桩周水泥土强度的提高对其桩侧摩擦性能的影响规律。结论:1.提高水泥土强度能够改善静钻根植竹节桩的抗压承载性能;当桩周水泥土强度从0.706 MPa增加到1.21 MPa,桩端水泥土强度从11.10 MPa增加到16.02 MPa时,静钻根植竹节桩极限抗压承载力提高了36%。2.当桩周水泥土强度从0.706 MPa增加到1.21 MPa时,不同深度土层中桩侧极限摩阻力增加到1.06–1.36倍。3.桩端水泥土强度从11.10 MPa增加到16.02 MPa时,静钻根植竹节桩的极限桩端承载力增加到1.42倍。4.在静钻根植竹节桩的实际工程应用中,增加桩端扩大头处水泥土强度能够有效提高桩基的承载性能,而桩周水泥土强度的增加对桩基侧摩阻力的提高效果不明显。

关键词：静钻根植竹节桩水泥土性质模型试验摩擦性能桩端承载性能

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一种静钻根植竹节桩非线性简化沉降计算方法（英文）

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2017年第11期18卷 895-909页

作者： Jia-jin ZHOU Xiao-nan GONG Kui-hua WANG ri-hong zhang Jia-jia YAN Research Center of Coastal and Urban Geotechnical Engineering Zhejiang University MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering Zhejiang University ZCONE High-tech Pile Industry Holdings Co. Ltd.

目的:静钻根植竹节桩是一种由预制桩和水泥土组成的组合桩基,其桩身具有预制桩-水泥土和水泥土-桩周土体两个接触面。本文以桩土接触面剪切试验、模型试验和现场试验数据为基础,提出一种静钻根植竹节桩简化沉降计算方法,为静钻根植竹节... 详细信息

目的:静钻根植竹节桩是一种由预制桩和水泥土组成的组合桩基,其桩身具有预制桩-水泥土和水泥土-桩周土体两个接触面。本文以桩土接触面剪切试验、模型试验和现场试验数据为基础,提出一种静钻根植竹节桩简化沉降计算方法,为静钻根植竹节桩的沉降计算提供依据;并通过所提出的简化计算方法对静钻根植竹节桩桩端水泥土扩大头以及桩周水泥土直径对静钻根植竹节桩承载性能的影响进行研究。创新点:1.通过剪切试验对预制桩-水泥土接触面的剪切性能进行研究,得到接触面侧摩阻力与相对位移的关系;2.建立同时考虑预制桩-水泥土接触面和水泥土-桩周土体接触面作用的静钻根植竹节桩简化沉降计算方法。方法:1.通过桩土接触面剪切试验,得到预制桩-水泥土接触面摩擦模型;2.通过对模型试验结果的分析,得到水泥土-桩周土体接触面摩擦模型;3.根据试验结果编写静钻根植竹节桩沉降计算程序,通过与试验结果的比较验证所提计算方法的可靠性;4.通过提出的静钻根植竹节桩简化计算方法对静钻根植竹节桩承载力影响因素进行分析与研究。结论:1.预制桩-水泥土接触面摩擦性能远优于水泥土-桩周土体接触面摩擦性能;2.由于水泥浆的渗透作用,水泥土-桩周土体接触面的初始剪切刚度有所提高;3.所提出的计算方法能够有效地计算出静钻根植竹节桩单桩在成层土体中的荷载位移关系曲线;4.桩端水泥土扩大头能够有效地提高静钻根植竹节桩桩端承载性能,并且增加桩周水泥土直径能够提高静钻根植竹节桩承载性能。

关键词：组合桩基预制桩-水泥土-桩周土体接触面桩土接触面初始剪切刚度弹性-破坏模型双曲线模型沉降计算

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Current status of drug therapy for chronic hepatitis B

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World Journal of Gastroenterology 2025年第2期31卷 1-12页

作者： Chuang Jiang Zhi-hong zhang Jia-Xin Li Division of Liver Surgery Department of General Surgery and Laboratory of Liver Surgeryand State Key Laboratory of Biotherapy and Collaborative Innovation Center of BiotherapyWest China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina Department of General Surgery Dafang County People's HospitalBijie 551600Guizhou ProvinceChina

In this editorial,we comment on the article by Meng et *** hepatitis B(CHB)is a significant global health problem,particularly in developing *** B virus(HBV)infection is one of the most important risk factors for cirrhosis and hepatocellular *** and treatment of HBV are key measures to reduce *** present,drug therapy can effectively control virus replication and slow disease progression,but completely eliminating the virus remains a ***-HBV treatment is a long-term process,and there are many kinds of antiviral drugs with different mechanisms of action,it is essential to evaluate the safety and efficacy of these drugs to reduce side effects and improve patients’*** will summarize the current status of CHB drug treatment,hoping to provide a reference for the selection of clinical antiviral drugs.

关键词： Chronic hepatitis B Hepatitis B virus Anti virus Drug treatment Therapy

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Flexible Graphene Field‑Effect Transistors and Their Application in Flexible Biomedical Sensing

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Nano-Micro Letters 2025年第2期17卷 252-313页

作者： Mingyuan Sun Shuai Wang Yanbo Liang Chao Wang Yunhong zhang hong Liu Yu zhang Lin Han Institute of Marine Science and Technology Shandong UniversityQingdao 266237ShandongPeople’s Republic of China State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100ShandongPeople’s Republic of China School of Integrated Circuits Shandong UniversityJinan 250100ShandongPeople’s Republic of China Shandong Engineering Research Center of Biomarker and Artificial Intelligence Application Jinan250100ShandongPeople’s Republic of China

Flexible electronics are transforming our lives by making daily activities more *** to this innovation are field-effect transistors(FETs),valued for their efficient signal processing,nanoscale fabrication,low-power consumption,fast response times,and ***,known for its exceptional mechanical properties,high electron mobility,and biocompatibility,is an ideal material for FET channels and *** combination of graphene and FETs has given rise to flexible graphene field-effect transistors(FGFETs),driving significant advances in flexible electronics and sparked a strong interest in flexible biomedical ***,we first provide a brief overview of the basic structure,operating mechanism,and evaluation parameters of FGFETs,and delve into their material selection and patterning *** ability of FGFETs to sense strains and biomolecular charges opens up diverse application *** specifically analyze the latest strategies for integrating FGFETs into wearable and implantable flexible biomedical sensors,focusing on the key aspects of constructing high-quality flexible biomedical ***,we discuss the current challenges and prospects of FGFETs and their applications in biomedical *** review will provide valuable insights and inspiration for ongoing research to improve the quality of FGFETs and broaden their application prospects in flexible biomedical sensing.

关键词： Flexible Graphene Field-effect transistor Wearable Implantable Biosensor

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Real-world evidence on the efficacy and safety of vonoprazanamoxicillin dual therapy for Helicobacter pylori treatment in elderly patients

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World Journal of Gastroenterology 2025年第1期31卷 68-78页

作者： Wen Gao Jing-Wen Li Hui Ye Xue-Zhi zhang Jian-Xiang Liu hong Cheng Department of Gastroenterology Peking University First HospitalBeijing 100034China School of Medicine Tsinghua MedicineTsinghua UniversityBeijing 100034China Department of Traditional Chinese Medicine and Integrative Medicine Peking University First HospitalBeijing 100034China

BACKGROUND A dual therapy regimen containing amoxicillin is a common treatment option for the eradication of Helicobacter pylori(***).While substantial research supports the efficacy and safety of vonoprazan and amoxicillin(VA)dual therapy in the general population,there is still a lack of studies specifically focusing on its safety in elderly *** To evaluate efficacy and safety of VA dual therapy as first-line or rescue treatment for *** in elderly *** As a real-world retrospective study,data were collected from elderly patients aged 60 years and above who accepted VA dual therapy(vonoprazan 20 mg twice daily+amoxicillin 1000 mg thrice daily for 14 days)for *** eradication in the Department of Gastroenterology at Peking University First Hospital between June 2020 and January *** status was evaluated by^(13)C-urease breath test 6 weeks after *** adverse events(AEs)during treatment were *** In total,401 cases were ***-one cases were excluded due to loss to follow-up,lack of re-examination,or unwillingness to take *** total of 380 included cases comprised 250 who received VA dual therapy as first-line treatment and 130 who received VA dual therapy as rescue *** was successfully eradicated in 239 cases(95.6%)in the first-line treatment group and 116 cases(89.2%)in the rescue treatment *** overall incidence of AEs was 9.5%for both ***,9.2%of patients experienced an AE in the first-line treatment group and 10.0%in the rescue treatment *** patients discontinued treatment due to AE,with a discontinuation rate of 1.3%.No serious AE *** The VA dual therapy regimen as a first-line treatment and a rescue therapy was effective and safe for elderly patients aged 60 and older.

关键词： Helicobacter pylori Vonoprazan Amoxicillin Dual therapy Elderly

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Prevalence of Helicobacter pylori infection in Chinese military personnel:A cross-sectional,multicenter-based study

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World Journal of Gastroenterology 2025年第3期31卷 42-49页

作者： Han-Chen Min Chun-Yan zhang Fang-Yu Wang Xiao-Hui Yu Shan-hong Tang hong-Wu Zhu Ya-Gang Zhao Ji-Luo Liu Jian Wang Jing-Han Guo Xiao-Mei zhang Yun-Sheng Yang Chinese People’s Liberation Army Medical School Chinese People’s Liberation Army General HospitalBeijing 100853China Department of Gastroenterology and Hepatology The First Medical CenterChinese People’s Liberation Army General HospitalBeijing 100853China Sixth Healthcare Department The Second Medical CenterChinese People’s Liberation Army General HospitalBeijing 100853China Department of Gastroenterology The 940th Hospital of Joint Logistic Support Force of Chinese People’s Liberation ArmyLanzhou 730050Gansu ProvinceChina Department of Gastroenterology General Hospital of Western Theater CommandChengdu 610011Sichuan ProvinceChina Department of Gastroenterology General Hospital of Southern Theater CommandGuangzhou 510010Guangdong ProvinceChina Department of Epidemiology Naval Medical UniversityShanghai 200433China School of Medicine Nankai UniversityTianjin 300071China National Clinical Research Center for Geriatric Diseases Chinese People’s Liberation Army General HospitalBeijing 100853China

BACKGROUND Helicobacter pylori(***)infection is a prevalent disease encountered in military internal medicine and recognized as the main cause of dyspepsia,gastritis,and peptic ulcer,which are common diseases in military *** guidelines in China state all patients with evidence of active infection with *** are offered ***,the prevalence of *** infection and its regional distribution in the military population remain unclear,which hinders effective prevention and treatment *** the prevalence of *** infection in the military population will aid in the development of customized strategies to better manage this infectious *** To investigate the prevalence of *** infection in the Chinese military population in different geographic *** This multicenter,retrospective study included 22421 individuals from five tertiary hospitals located in north,east,southwest,and northwest cities of *** infection was identified using the urea breath test,which had been performed between January 2020 and December *** Of the 22421 military service members,7416(33.1%)were urea breath *** highest prevalence of *** was in the 30-39 years age group for military personnel,with an infection rate of 34.9%.The majority of infected subjects were younger than 40-years-old,accounting for 70.4%of the infected *** individuals serviced in Lanzhou and Chengdu showed a higher infection prevalence than those in Beijing,Nanjing,and Guangzhou,with prevalence rates of 44.3%,37.9%,29.0%,31.1%,and 32.3%,*** *** infection remains a common infectious disease among military personnel in China and has a relatively high prevalence rate in northwest China.

关键词： Helicobacter pylori Prevalence Military personnel Urea breath test Multicenter study

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Maternal and fetal death associated with acute pancreatitis during pregnancy:A case report

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World Journal of Clinical Cases 2025年第10期13卷 53-58页

作者： Jin Li Qing-Yan zhang Mei-hong zhang Shan-Yun Jiang Department of Anesthesiology Kaihua County People’s HospitalQuzhou 324300Zhejiang ProvinceChina Center for Clinical Inspection and Quarantine Kaihua County Center for Clinical Inspection and QuarantineQuzhou 324300Zhejiang ProvinceChina

BACKGROUND Acute pancreatitis in pregnancy is a rare but serious condition that can lead to high maternal mortality and fetal *** of pregnancy complicated by severe acute pancreatitis,particularly with subsequent respiratory and cardiac arrest,are rarely *** SUMMARY We present the case of a 35-year-old woman,at 36+5 weeks of gestation,who presented with paroxysmal epigastric pain accompanied by low back pain,nausea,and *** to the clinical symptoms,B-ultrasound imaging and biochemical indicators,the patient was diagnosed with acute pancreatitis and initially managed ***,3 hours after admission,the patient experienced respiratory and cardiac arrest,and the fetus *** this case,the adverse outcomes occurred due to the lack of aggressive fluid resuscitation and an active surgical *** Implementing aggressive fluid resuscitation to sustain tissue perfusion,alongside the proactive evaluation of pharmacological agents that suppress gastric acid secretion and inhibit pancreatic enzyme activity,may be beneficial in mitigating the risk of a severely adverse *** management of acute pancreatitis during pregnancy requires careful timing of surgical intervention,a thorough evaluation of the risks and benefits regarding the continuation or termination of pregnancy,and a focus on safeguarding both maternal and fetal health.

关键词： Severe acute pancreatitis Pregnancy Cardiac arrest Fetal death Case report

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