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高层无梁无柱帽板柱—剪力墙体系——江西省图书馆14层书库设计
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作者 金国勇 《有色冶金设计与研究》 1995年第2期65-68,74,共5页
高层无梁无柱帽板柱—剪力墙体系在设计、计算和构造方面,国内资料甚少。本文以江西省图书馆14层书库设计实例,对其适用范围、设计、计算方法及配筋构造措施提出粗浅看法,供同行参考。
关键词 等代框架法 节点设计 图书馆 书库 设计
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关于板柱结构的适用高度
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作者 梁玉宁 《遵义科技》 2007年第4期38-39,共2页
板柱结构是一种经常被采用的结构体系,它具有不少优点,如施工支模及绑扎钢筋较简单,结构本身高度较小,可以减少建筑物的层高,从而降低建筑物的造价等等.
关键词 板柱设计 工作实践
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火力发电厂土建结构设计 被引量:2
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作者 白宝华 《云南电力技术》 2011年第6期93-94,共2页
介绍火力发电厂土建结构设计。
关键词 土建结构设计 专业配合 梁、设计
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Design concerns of room and pillar retreat panels 被引量:4
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作者 Klemetti Ted M. Sears Morgan M. Tulu Ihsan B. 《International Journal of Mining Science and Technology》 SCIE EI CSCD 2017年第1期29-35,共7页
Why do some room and pillar retreat panels encounter abnormal conditions? What factors deserve the most consideration during the planning and execution phases of mining and what can be done to mitigate those abnormal... Why do some room and pillar retreat panels encounter abnormal conditions? What factors deserve the most consideration during the planning and execution phases of mining and what can be done to mitigate those abnormal conditions when they are encountered7 To help answer these questions, and to determine some of the relevant factors influencing the conditions of room and pillar (R & P) retreat min- ing entries, four consecutive R & P retreat panels were evaluated. This evaluation was intended to rein- force the influence of topographic changes, depth of cover, multiple-seam interactions, geological conditions, and mining geometry. This paper details observations were made in four consecutive R & P retreat panels and the data were collected from an instrumentation site during retreat mining. The pri- mary focus was on the differences observed among the four panels and within the panels themselves. The instrumentation study was initially planned to evaluate the interactions between primary and secondary support, but produced rather interesting results relating to the loading encountered under the current mining conditions. In addition to the obse^ation and |ll^trumentation, numerical modeling was per- formed to evaluate the stress condi~!ons. Both the LaModel 3.0 and Rocscience Phase 2 programs were used to evaluate these four panels, The results of both models indicated a drastic reduction in the vertical stresses experienced in these panels due to the full extraction mining in overlying seams when compared to the full overburden load. Both models showed a higher level of stress associated with the outside entries of the panels. These results agree quite well with the observations and instrumentation studies performed at the mine. These efforts provided two overarching conclusions concerning R & P retreat mine planning and execution. The first was that there are four areas that should not be overlooked during R & P retreat mining: topographic relief, multiple^seaPa stress relief, stress concentrations near the gob edge, and geologic changes in the immediate roof. The second is that in order to successfully retreat an R & P panel, a three-phased approach to the design and analysis of the panel should be conducted: the planning phase, evaluation phase, and monitoring phase. 展开更多
关键词 Room and pillar Retreat mining Deep coverSafety Multiple seam
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