,filling the holes under the caisson foreland with underwater unscattered concrete and using the molded concrete for surface protection,slope protection and bottom stabilization,aiming at restoring and enhancing the original design top elevation,stressing performance of the rubble bed,the foundation bed coefficient and anti-erosion ability in the strong flow environmen
通过潜水探摸检查和水下地形测量能得到抛石基床破损的部位和程度;通过测量拖轮启动工作时尾吹水流流速并与规范值比较,得到造成抛石基床10~100 kg块石启动的原因;利用规范法和有限元模型两种方法对码头现状的稳定性进行计算分析,试算得出抛石基床遭水流冲刷的极限进深值,并与潜水探摸实测值比较后评定码头的安全性;结合工程特点,提出浇注水下不离析混凝土填充沉箱前趾下空洞并采用模袋混凝土护面、护坡和护底的加固施工方案,旨在恢复和增强原码头抛石基床的设计顶高程及基床的受力性能并考虑到大流速作用环境,恢复和增强基床系数与板结防冲刷能力。
Based on the relationship between load capacities of soil layers and pile materials,the progress of the pile from the steel tubular pile,steel tubular pile filled with concrete,to the thin wall steel tubular pile filled with centrifugal concrete is presented.
讨论了宝钢工程钢管桩应用中的地质条件、桩尖持力层、承载力和沉降等主要技术问题,比较了不同持力层桩基的沉降规律,并结合地基土所提供承载力和桩材强度所提供承载力的关系,阐述了从钢管桩到钢管混凝土桩以及薄壁钢管离心混凝土桩的技术进步过程。
The model has been applied for the complete curve analysis of centrifuge concrete-filled steel tubular(CCFT) members subjected .
应用所建模型对离心钢管混凝土扭转构件工作性能进行了非线性有限元全过程分析。
To solve the problems such as fire resistance design,assessment and repair after fire for centrifuge concrete-filled steel tubular(CCFT) columns,based on analysis on stress-strain relationships of steel and concrete in fire environments and after high temperatures,a finite element model for calculating fire resistance and residual strength of CCFT columns was established.
针对离心钢管混凝土结构抗火设计、火灾中受损评价以及修复等有关问题,通过对钢材与混凝土高温下与高温后的应力-应变关系的分析,建立了离心钢管混凝土短柱四面均匀受火及其火灾后的有限元分析计算模型,进行了火灾下与火灾后荷载-变形关系曲线全过程分析,结合离心钢管混凝土结构的常温极限承载力表达式,提出了ISO-384标准升温曲线作用下和作用火灾后轴压构件的极限承载力简化计算公式。
Piles Concrete Isolation Detecting by Low Strain Dynamic Testing
低应变动测法检测基桩混凝土离析缺陷
The Finite Analysis of Bearing Performance of Centrifugal Concrete-filled Steel Tube;
离心钢管混凝土受力性能有限元分析
Harmfulness of segregation of asphalt concrete pavement and its solution
沥青混凝土路面离析病害及解决对策
Chloride Ion Diffusion Analysis and Concrete Structure Reliability Research under Marine Environment;
海洋混凝土结构中氯离子的扩散分析及混凝土结构可靠度研究
centrifugal prestressed concrete pile
离心预应力混凝土桩
centrifugally cast pipe
离心浇灌钢筋混凝土管
Study of Chemical and Mechanical Damage of Concrete Based on Calcium Ion Leaching;
基于钙离子侵析的混凝土化学和力学损伤研究
Study on Chloride Penetration of In-Situ Harbor Structures;
海港码头氯离子侵蚀混凝土实测分析研究
Analysis on Debonding Failure of Sheet-end Interface of Concrete Beams Strengthened with FRP;
FRP加固混凝土梁片材端部界面剥离破坏分析
Test and Boundary Element Analysis for Chloride Diffusion in Concrete;
混凝土中氯离子扩散实验及边界元分析
Diffusion Experiment of Chloride Ions in Concrete and Analysis of Influential Factors
氯离子在混凝土中的扩散实验及影响因素分析
Chloride ion permeability test and analysis for recycled concrete
再生混凝土氯离子渗透性能测试与分析
BOUNDARY ELEMENT METHOD FOR ANALYSIS OF TWO-DIMENSIONAL CHLORIDE DIFFUSION IN CONCRETE
混凝土中氯离子二维扩散分析的边界元法
Analytical study of two-dimensional diffusion of chloride ion in concrete
混凝土中氯离子二维扩散规律的解析研究
Prediction of chloride ion's amount in structural concrete based on FEMLAB
基于FEMLAB的结构混凝土中氯离子侵蚀量预测分析
The Technology and Mechanical Assurance of Segregation Prevention in the Engineering of Cement Concrete Pavement
水泥混凝土路面工程防离析工艺及机械保障
Similar analysis of concrete slab subjected to close range explosion
混凝土板在近距离化爆作用下的相似分析
Seismic Analysis of Steel Reinforced Concrete and Reinforced Concrete Composition Frame Structure;
型钢混凝土—钢筋混凝土混合框架抗震性能分析