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桩端后注浆超长灌注桩桩侧极限摩阻力计算方法

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岩土力学 2015年第S1期36卷 382-386页

作者：李永辉王卫东吴江斌郑州大学土木工程学院河南郑州450001 华东建筑设计研究院总院上海200002

目前超长灌注桩普遍应用于大型桥梁、超高层建筑工程中,且常采用桩端后注浆技术,但其桩侧极限摩阻力的确定尚未有切合其实际特点的方法。大量现场实测数据反分析表明,采用β法计算时,存在桩侧土压力大于土层静止土压力的现象。在探讨桩... 详细信息

目前超长灌注桩普遍应用于大型桥梁、超高层建筑工程中,且常采用桩端后注浆技术,但其桩侧极限摩阻力的确定尚未有切合其实际特点的方法。大量现场实测数据反分析表明,采用β法计算时,存在桩侧土压力大于土层静止土压力的现象。在探讨桩侧土压力增大机制的基础上,对β法进行改进,建立了桩侧土压力确定方法,并给出了桩侧土压力系数的取值公式。工程实例计算结果与试桩实测结果比较分析表明,所建立的桩端后注浆超长灌注桩桩侧极限摩阻力计算方法具有合理性与可行性。

关键词：超长灌注桩桩端后注浆桩侧摩阻力桩侧土压力

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圆钢管空间相贯节点的实验研究

土木工程学报 2003年第8期36卷 24-30页

作者：陈以一陈扬骥詹琛林颍如董明同济大学上海建筑设计研究院

针对圆钢管空间相贯节点,进行了三种类型大尺寸足尺试件的试验。具体介绍了试件和加载方案的设计,提供了主要试验结果,并根据变形极限概念,提出了确定试件极限承载力的方法。对试件的破坏机理进行了分析,指出节点区焊缝刚度过大延性不... 详细信息

针对圆钢管空间相贯节点,进行了三种类型大尺寸足尺试件的试验。具体介绍了试件和加载方案的设计,提供了主要试验结果,并根据变形极限概念,提出了确定试件极限承载力的方法。对试件的破坏机理进行了分析,指出节点区焊缝刚度过大延性不足的特征,可能阻碍钢管节点管壁极限强度的充分发挥。根据试验结果,对空间相贯节点强度计算公式作了初步探讨。

关键词：钢管结构空间相贯节点足尺试验破坏机理极限承载力

Prestress Optimization of Cable Dome Structures Based on Simulated Annealing

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Prestress Optimization of Cable Dome Structures Based on Sim...

International Symposium on New Olympics New Shell and Spatial Structures

作者： Rongwei Tang Xianzhong Zhao Zuyan Shen institute of Building Structures china Academy of Building research Beijing Civil Engineering Department tongji university Siping Road 1239 shanghai

＜正＞Cable dome structure is a new style of tensegrity structure invented by America Engineer David Geiger based on Fuller’s tensegrity conception. It has received large attention from the engineers since it appears for it’s novel structure, high efficiency to translate the loads and it’s economic. Many researches have been done for this type of structure in recent years, mainly on static analysis, dynamic analysis and construction control theories. However, studies on the optimum design of cable dome structures are relatively few. This paper will develop a simulated annealing based solution algorithm for the optimum design of cable dome structures with prestress variables.

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上海中线2号污水泵站引水渠道和前池的试验研究

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同济大学学报（自然科学版） 2001年第11期29卷 1352-1356页

作者：赵毅山朱立明杨梅萍韦鹤平同济大学工程力学与技术系上海200092 华东勘测设计研究院浙江杭州310014 同济大学环境科学与工程学院上海200092

对世界银行贷款项目———我国最大的污水治理工程上海市污水治理二期工程中线 2号污水泵站引水渠道及前池进行了水力模型试验研究 ,在研究中采用清、浑水配水均匀性试验和设置压水板试验 ,并结合数模流场分析的方法 ,发现原污水泵站存... 详细信息

对世界银行贷款项目———我国最大的污水治理工程上海市污水治理二期工程中线 2号污水泵站引水渠道及前池进行了水力模型试验研究 ,在研究中采用清、浑水配水均匀性试验和设置压水板试验 ,并结合数模流场分析的方法 ,发现原污水泵站存在引水渠道水流流速不均匀 ,前池流态恶劣和泥沙淤积积严重 .针对试验中的问题提出改进措施 ,措施效果理想 ,消除了前池不良流态 ,提高了泵站的工作效率 .

关键词：污水泵站水力模型引水渠道前池上海污水治理配水均匀性试验设置压水板试验

Key techniques in cross passage construction of shanghai Yangtze River Tunnel by artificial ground freezing method

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Key techniques in cross passage construction of Shanghai Yan...

作者： Z.H.Huang shanghai Changjiang Tunnel & Bridge Development Co.,Ltd.,shanghai,P.R.china X.D.Hu Department of Geotechnical Engineering,tongji university,shanghai,P.R.china Key Laboratory of Geotechnical and Underground Engineering,Ministry of Education,tongji university,shanghai, P.R.china J.Y.Wang shanghai Tunnel Engineering Co.,Ltd.,shanghai,P.R.china H.B.Lin Nanjing design & research institute,Sino-coal International Engineering Group,Nanjing,P.R.china R.Z.Yu Department of Geotechnical Engineering,tongji university,shanghai,P.R.china Key Laboratory of Geotechnical and Underground Engineering,Ministry of Education,tongji university,shanghai, P.R.china

This paper gives a brief introduction of cross passage construction of shanghai Yangtze River Tunnel by artificial ground freezing method and reports on the design of frozen soil curtain and construction plan. Given the unfavorable conditions,many methods are adopted to control the great risk factors during the construction. Key techniques such as drilling of freezing holes,protection of segment opening,thermal insulation of frozen soil curtain and construction monitoring are prudently adopted,which are emphatically introduced in this paper.

关键词： Tunnel Key techniques in cross passage construction of shanghai Yangtze River Tunnel by artificial ground freezing method

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列车自动监控培训系统的研究

铁道学报 2002年第2期24卷 17-20页

作者：郭秀清迟哲陈永生同济大学电子与信息工程学院上海200331

在分析列车自动监控系统结构的基础上 ,提出一种基于三层 C/ S结构的列车自动监控仿真系统 ,阐述了系统三个层次详细的设计实现过程。

关键词：三层Client/Server ATS 列车自动监控仿真系统

Swietenia mahagony extract shows agonistic activity to PPAR7 and gives ameliorative effects on diabetic db/db mice

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Acta Pharmacologica Sinica 2005年第2期 220-222页

作者： Dan-dan LI~(1,2,5),Jun-hua CHEN~(1,4,5),Qing CHEN~(1,4),Guo-wei LI~(1,4),Jing CHEN~(1,4),Jian-min YUE~(1,4),Min-li CHEN~3,Xiao-ping WANG~2,Jian-hua SHEN~(1,4,6),Xu SHEN~(1,4,6),Hua-liang JIANG~(1,4,6)~1Drug Discovery and design Center,State Key Lab of Drug research,shanghai institute of Materia Medica,shanghai institutes for BiologicalSciences,Chinese Academy of Sciences,shanghai 201203,~2Chemistry Department,tongji university,shanghai 200092,~3Animal Experi-ment Center,Zhejiang College of Traditional Chinese Medicine,Hangzhou 310053 ~4Graduate School of the Chinese Academy of Sciences,china

Aim:To search the peroxisome proliferator-activated receptor γ(PPARγ)agonistsfrom Swietenia mahagony extract(SmE)and observe the possible ameliorativeeffects of SmE on diabetic db/db ***:The PPARγagonistic activity ofSmE was screened by yeast-two hybrid *** blood glucose levels ofdiabetic db/db mice were measured using a blood glucose level monitor and thedata were statistically analyzed by NDST8.8W ***:By using theclinical drug rosiglitazone as a positive control,it was found that the PPARγagonistic activity of SmE at a concentration of 50μg/L was approximately half thatof 35.7μg/L(0.1μmol/L)of *** the dose of 1000 mg/kg,SmE remark-ably decreased the blood glucose concentration of db/db mice from(15.26±2.98)to(7.58±2.20)mmol/L,and reduced the blood glucose levels by 55.49% comparedwith the control group(P<0.01).Conclusion:SmE shows agonistic activity toPPARγ and can ameliorate the blood glucose levels of diabetic db/db *** be thus used as a potential agent for diabetes therapy.

关键词： Swietenia mahagony diabetes mellitus peroxisome proliferator-activated receptor γ yeast-two hybrid

research and Practice of New Rural Community Development Model in Northeast Area

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Research and Practice of New Rural Community Development Mod...

2014年环境污染与大众健康学术会议

作者： Chen LV 1 Jing LV 2 Hong YANG 3 4 1 china university of Geosciences Beijing china 100083 2 Jilin institute of Architecture and Civil Engineering Changchun china 130118 3 Harbin institute of Technology Harbin china 150001 4 china Northeast Municipal Engineering design and research institute Changchun china 130021

The change of production mode and increase of farming radius in Northeast Rural recently, led to each area of agricultural cultivation reach to 20 square kilometers become possible. In this paper, make plan ning of Yilong town in Yi’an country of Heilongjiang Province as example, explore the implementation of the new "secondary" level of the town structure. According to the distribution such as farming, transport, pro duction, life, status of infrastructure and other factors, proposed to replace the natural villages in rural com munities, construction of new rural communities with improved social function, complete infrastructure and unique industries. Make rural space system model village organizations with more affordability than the original system of central planning （For short "complex community model"）. Want to take this opportunity to try for the helpful suggestions with construction of new rural villages in the form of sustainable building in Northeast area.

关键词： new rural rural communities complex community model planning preparation

Analysis and Application of Fuzzy Risk on Instability of Dam

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Analysis and Application of Fuzzy Risk on Instability of Dam

2004安全科学与技术国际会议

作者： MA Rongyong1 LIU Yanming2 HUANG Haiyan3 & CHEN Chun1 (1 College of Civil and architectural Engineering Guangxi university Nanning 53004 Jiangsu china) (2 Guangxi water conservancy department Nanning 530023 Jiangsu china) (3 Guangxi institute of Electric Power Industry Investigation design and research Nanning 530023 Jiangsu china)

The fuzziness of the parameters in design and the guideline about when the dam fails to work are taken into consideration in the analysis of the risk on the instability of the dam. The model of fuzzy

关键词： earth dam instability of the dam fuzzy risk