華東交通大學(xué)最新畢業(yè)論文格式-免費(fèi)閱讀
【正文】 ……（5）計(jì)算輪軌噪聲時(shí)，多個(gè)移動(dòng)振動(dòng)源的相互干擾是一個(gè)極為復(fù)雜的問題，本課題沒有涉及，這是一個(gè)須進(jìn)一步研究的問題。表中文字：宋體（Times New Roman）五號(hào)居中，單倍行距，段前3磅，段后3磅?！诙? 輪軌相互作用關(guān)系 輪軌接觸關(guān)系及接觸剛度車輪和鋼軌的表面不平順構(gòu)成了輪軌振動(dòng)的激勵(lì)源，車輪和鋼軌接觸的幾何關(guān)系見圖21，圖中SW是車輪的表面粗糙度；SR是鋼軌表面的粗糙度；KW是車輪的接觸彈性鋼度；KR是鋼軌的接觸彈性剛度。即列車車體與空氣的磨擦而產(chǎn)生的噪聲。段落文字：宋體（英文用Times New Roman體）小四號(hào)，兩端對(duì)齊書寫，段落首行縮進(jìn)2個(gè)漢字符。另外，論文有針對(duì)性地研究了南昌地區(qū)基坑支護(hù)狀況，相應(yīng)地作了經(jīng)濟(jì)性分析并提出了一些建議。段落：縮進(jìn)0，居中，2倍行距，段前、段后0。四、其他本模板中的內(nèi)容來自于不同的資料，上下文之間可能沒有直接的聯(lián)系，由此給您帶來的不便，我們表示歉意；各章節(jié)標(biāo)題由作者自行確定。就此問題，作者對(duì)全國(guó)若干城市基坑工程支護(hù)狀況進(jìn)行了深入地調(diào)研并查閱了大量工程實(shí)例資料，對(duì)上述問題作了較詳細(xì)的研究和探討。Times New Roman五號(hào)居中TECHNICAL AND ECONOMIC ANALYSIS OF FOUNDATION PIT RETAINING STRUCTURE AND OPTIMUM PROGRAMME WITH AHPABSTRACTWith the increase of high building foundation pit and the restriction of the surroundings around foundation pit, it has bee a prominent research subject to work out properly a project of foundation pit retaining structure with a better economic and technical effect, and render it prehensively, scientifically, impartially, and accurately in the bid work of foundation pit retaining structure. In regard to this, the author conducted a survey of present situation of foundation pit in some domestic cities and, by consulting extensively related materials, made a deep research into the above problem.The thesis first explores the technical adaptability of different foundation pit retaining structure. Then under the guidance of the principle of advanced technology and economic feasibility, the author identifies the technical parameters of primary retaining
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