Results 41 to 50 of about 2,360 (144)
Exploration and prediction evaluation on causative factors of water inrush from separation layers of mining overburden in coal mines [PDF]
The occurrence of mine water inrushes is common and poses significant hazards in various mining areas throughout China. However, the existing regulations lack of specific engineering geological and hydrogeological exploration guidelines tailored to the ...
Mengnan LIU +6 more
core +1 more source
Jianzhu Gangjiegou Jinzhan, 2023 为提高整体式桥的梁台结合部抗裂性能与施工便利性，提出一种新型整体式桥台与组合梁结合部构造。采用ABAQUS通用分析软件，考虑钢混界面摩擦滑移效应，建立整体式桥台与组合梁结合部的三维有限元模型。通过仿真计算得到整体式桥台与组合梁结合部的破坏形态与荷载-挠度曲线，分析其极限承载力与传力机理，并与模型试验结果进行对照验证。进一步通过参数化计算分析，得到混凝土强度、钢材强度、钢板厚度与腹板形式对梁台结合部承载性能的影响。研究结果可为整体式桥梁及类似结构的研究提供参考。
范慧敏 +4 more
doaj
Jianzhu Gangjiegou Jinzhan, 2014 随着钢-混凝土组合梁的广泛应用,组合梁的抗火性能和设计方法越来越引起人们的重视。目前关于钢-混凝土组合梁的抗火性能研究文献还不多。对国内外钢-混凝土组合梁的抗火性能试验和理论研究以及高温下栓钉的受力性能研究进行了文献综述,指出了目前研究中存在的问题和不足。此外,还对国内外常用的几个规范中关于钢-混凝土组合梁抗火设计方法和理论进行了分析和总结,用一个算例计算了组合梁的临界温度并进行了对比。最后对未来的研究趋势进行了展望。研究工作可为开展钢-混凝土组合梁抗火性能研究和进行组合梁抗火设计提供参考。
王卫永, 李国强
doaj
Jianzhu Gangjiegou Jinzhan, 2023 为分析钢底板波形钢腹板梯形组合箱梁的畸变效应，利用圣维南原理考虑顶底板对波形钢腹板的约束作用，将组合箱梁等效为钢箱梁的过程中保持面内外抗弯刚度不变，基于板元框架法建立畸变控制微分方程并导出克雷洛夫函数形式的通解。结合数值算例的对比分析验证所提方法的合理性，并研究腹板俯角和梁高变化对畸变双力矩的影响。结果表明：相较于完全忽略腹板的面内抗弯刚度，考虑顶底板对腹板的约束作用更合理；波形钢腹板和钢底板对箱梁的畸变翘曲刚度和横向框架刚度均有较大程度的削弱 ...
陈东亮, 张元海, 刘泽翔
doaj
A comparative study of the buffeting properties of FRP and steel box girder cable-stayed bridges [PDF]
, 2016 2011-2012 > Academic research: refereed > Publication in refereed journalVersion of ...
Bai, YL, Dai, JG, Ou, JP
core
Study on failure characteristics and control of roof separation with weak interlayer of deep gob-side entry driving [PDF]
Roof with weak interlayer has significant influence on the stability of deep gob-side entry driving, to effectively control the separation of roof with weak interlayer in deep gob-side entry driving under high deviatoric stress, based on the mechanical ...
Bowen WU +5 more
core +1 more source
地域类型的建构——2018SDC竞赛作品“自然之间”设计解析 [PDF]
, 2018 以2018中国国际太阳能十项全能竞赛作品\"自然之间\"为契机,针对住宅建筑类型,从\"体\"\"场\"\"意\"3个层面进行分析,对绿色建筑设计中地域类型的建构问题进行回应。国家自然科学基金项目(51878581,51778549);;厦门大学“双一流”学科群支持项目(SAS2018 ...
王绍森, 石峰, 闫树睿
core
Theory and application of mining mechanics and strata control [PDF]
Studying the dynamic response of rock mass mining and strata control technology is of great significance for promoting safe and efficient coal production and ensuring stable energy supply.
Jinquan JIANG +4 more
core +1 more source
General-purpose expasion type solid modlfication backfilling mining technology and equipment for coal mines [PDF]
Based on the green development trend and requirements of China’s coal industry, this paper analyzed the factors that coal mines consider in choosing filling mining methods and the constraints that affect the promotion of filling mining technology ...
Feng CHEN +6 more
core +1 more source