- 摘 要
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裴欲曉 張克峰 戴康德
（中國石化工程建設(shè)公司 北京 100101）[提要] 活塞式壓縮機(jī)基礎(chǔ)通常采用大塊體結(jié)構(gòu)，動力分析采用單質(zhì)點(diǎn)模型，其中地基動力參數(shù)的取值將直接影響分析結(jié)果的準(zhǔn)確性。對于大型基礎(chǔ)，采用現(xiàn)場模型試驗(yàn)測得的參數(shù)可能與實(shí)際地基動力參數(shù)存在較大偏差。就大型活塞式壓縮機(jī)基礎(chǔ)的設(shè)計(jì)，討論了動力參數(shù)出現(xiàn)偏差的原因及其影響。在動力分析中考慮這些因素，可使基礎(chǔ)設(shè)計(jì)在更大的安全范圍內(nèi)滿足工程要求。
[關(guān)鍵詞] 壓縮機(jī) 動力特性 地基剛度 大塊式基礎(chǔ)Block type foundation is employed in design of reciprocating compressor foundation. Single-mass spring system model is adopted in its dynamic analysis, in which dynamic parameters of subsoil will influence the accuracy of the results. For large-scale foundations, dynamic parameters determined via in situ model testing are likely to differ from actual dynamic parameters of subsoil. This paper discusses factors that cause error of these parameters and their influence on the dynamic analysis results. Considering these factors in dynamic analyzing and computing,the foundation designed fits re-quirements of the project within the range of possibilities.
Keywords: compressor; dynamic properties; subsoil stiffness; block type foundation
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