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畢業(yè)設(shè)計(論文)-鐵路線路養(yǎng)護(hù)維修研究內(nèi)容(專業(yè)版)

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【正文】 s essay titled SelfReliance. If you39。在此向各位指導(dǎo)老師表示真摯的感謝和崇高的敬意 我還要感謝同組的各位同學(xué),我們相互探討、共同進(jìn)步的過程,給予我諸多啟迪,對于你們幫助和支持,在此我表示深深地感謝! 在論文寫作過程中,我還參考了相關(guān)的書籍和論文,在這里一并向有關(guān)的作者表示謝意。即接頭處兩根 3 毫米,另兩根不墊,經(jīng)過 10 天左右的壓實,再將 3 毫米換墊 5 毫米,另兩根墊 3 毫米,如此繼續(xù)墊到 8 毫米,最后撤除墊板,在接頭處的 8 根軌枕進(jìn)行清篩起道,接頭起高 10 毫米左右,再從兩端小腰向接頭加強(qiáng)搗固,并夯實,這樣反復(fù)數(shù)次即可整平接頭。如養(yǎng)護(hù)不良,更增加沖擊動力對接頭的破壞作用,促使永久變形的發(fā)展,這樣兩者互為因果,造成惡性循環(huán),會使接頭病害愈來愈嚴(yán)重,甚至威脅行車安全。主要是軌頂面剝落、掉塊和螺栓孔裂紋。對于超高應(yīng)設(shè)置合理。實際軌面標(biāo)高與紅橫線高程之差在任何情況下,不得打于 30mm,作為線路和接觸網(wǎng)支柱起高,下落,或橫向移動時,施工前工務(wù)和供電部門 應(yīng)會同按批準(zhǔn)的施工文件測量復(fù)核;竣工后復(fù)查并重新測定。同理,運(yùn)送施工材料使用小車應(yīng)安裝絕緣軸。 ② 使用 要求:調(diào)高墊板應(yīng)墊在軌低與橡膠墊板之間,每處調(diào)高墊板不得超過 2 塊 ,總厚度不得超過 10mm。該機(jī)型除了傳統(tǒng)配柞整形功能外,還增加了局部集作、補(bǔ)碎功能,清掃裝置具有枕面、軌側(cè)和垂直三種裝置,可有效將軌枕和扣件上的道昨清掃并搜集至柞斗,當(dāng)?shù)来残枰倭垦a(bǔ)柞回填作業(yè)時,再對道床回填。 圖 43 WD320 型軌道動力 穩(wěn)定車 WD320 是借鑒國外先進(jìn)技術(shù)研發(fā)的大型養(yǎng)路機(jī)械。在翻漿冒泥路段, QS650U 型清篩機(jī)可以對道床進(jìn)行全拋作業(yè)。 鐵路線路在列車重力和列車運(yùn)動產(chǎn)生的各種力的作用下,以及在自然環(huán)境的影響下,會發(fā)生各種病害。常見的病害有:①鐵路線路及其各組成部分在空間位置上的改變,如線路爬行,軌距擴(kuò)大或縮小,線路方向錯動,線路不均勻下沉或凍起等;②鋼軌及其各組成部分發(fā)生磨損和疲勞;③軌枕損壞和道床臟污等。 道柞搗固和夯實 大型搗固車是針對有碎線路作業(yè)的主要大型養(yǎng)路機(jī)械之一,其主要作業(yè)是在封鎖線路“天窗”條件下,能夠進(jìn)行軌道撥道、起道抄平、鋼軌兩側(cè)軌枕下道柞搗固和枕端道柞夯實作業(yè)。是線路修理、提速改造和新線建設(shè)作業(yè)機(jī)組中重要的配套設(shè)備。 此外,還新開發(fā)研制了激光避障系統(tǒng)、道床斷面激光掃描系統(tǒng)及 IPG(工控機(jī) )作業(yè)控制系統(tǒng),可對側(cè)犁、中犁作業(yè)效果進(jìn)行有效測量顯示。使用 調(diào)高 扣件的混凝土枕,混凝土寬枕和整體道床,每處調(diào)高墊板不得超過 3塊 ,總厚度不得超過 25mm。 2.安裝絕緣軌距時,在軌距桿較多的地方,軌距桿和道渣之間應(yīng)報持 30mm的間隙,或?qū)④壘鄺U絕緣部位下面的道砟掏空,以防雨水存留,侵泡絕緣件,致使絕緣電阻下降,破壞軌道電路的正常工作 14 3. 使用中間絕緣的軌距桿時,中間絕緣部分還要白拆卸,螺栓如有松動或缺少,應(yīng)配合信號工區(qū)擰緊或補(bǔ)齊,安裝時應(yīng)平裝,使螺帽一面向上,以減少滲水。測量的各數(shù)據(jù),均須雙方簽認(rèn)并報集團(tuán)公司備查。對小半徑曲線軌距變化率不得大于千分之一,圓曲線較好的曲線可用繩正法進(jìn)行撥道,為加強(qiáng)曲線園順度檢查,在小于或等于 450米曲線上增設(shè)副矢點的辦法,(也就是我們平時說的副點)對控制曲線園順度效果很好,它縮短了檢彎距離,加密了曲線控制測量點,具體辦法是在現(xiàn)有 10 米間距中間增設(shè)一點副矢,其正矢在緩和曲線上為兩相鄰正矢點之和的一半,圓曲線上為圓曲線計劃正矢,檢測工具任然為 20 米弦線,在曲線養(yǎng)護(hù)中還要切實注意緩和曲線的養(yǎng)護(hù),緩和曲線是 超高,軌距遞減段,是正矢漸變段,業(yè)時機(jī)車車輛脫軌多發(fā)段,因此,超高,軌距遞減是否均勻,正矢變化是否符合規(guī)定,時緩和曲線養(yǎng)護(hù)的關(guān)鍵,曲線范圍內(nèi)連接零件要經(jīng)常保持全,緊,密,正,無失效,扭力矩符合《鐵路線路維修規(guī)則》規(guī)定,擋肩破損的軌枕要及時修復(fù),失效的要及時更換,道床不詰要及時清篩,道床要飽滿,上股按規(guī)定加寬到 米。這種病害多數(shù)發(fā)生在淬火分界處和軌端,以曲線上股多見。 鎖定鋼軌、防止爬行不使軌縫拉大 砼枕地段擰緊各種螺栓,達(dá)到規(guī)定扭力。 第二:墊砂整治:在砼枕道床板結(jié)地段用直徑為 10 毫米左右的碎石碴,將枕底起高,用砂鏟將石碴均勻地墊入枕底受力部位,一次墊砂量不超過 10 毫米為宜 。 最后,我要感謝母校對我的培養(yǎng),這份深厚的恩情我永遠(yuǎn)不會忘記 25 為你提供優(yōu)秀的畢業(yè)論文參考資料,請您刪除以下內(nèi)容, O(∩ _∩ )O 謝謝?。?! A large group of tea merchants on camels and horses from Northwest China39。ve not yet read it, I strongly encourage you to do so. In this essay, the venerable Emerson talks about eschewing the trappings of society and finding one39。s to e and recapping the key points. This device, not used in the original, is culturally understandable but artistically mediocre. What puzzles me is the two new songs for the opening and end credits. They were written in English, but sung by Chinese with an unfortable accent. They were obviously designed to appeal to an Englishspeaking base, but do not jibe with the Chinese dialogue. Speaking of the dialogue, the English translation, picked apart by some Chinese, is too literal for my taste. I can imagine a typical American hit by a flurry of royal ranks, addresses and greetings, even multiple names and titles for the same person. The first half hour must be a swamp to wade through, very much like my experience of getting through a Tolstoy tome with its endless inflections of names transliterated into lengthy Chinese. I see the choice of verbatim translation as an effort for conveying exotica. It is fairly petent, with no error that I could detect, but fails to rise above words or capture the essence of the language. A cultural product usually crosses over to a foreign territory first by an emphasis on the monalities. But whether inside or outside China, the temptation to sell it for the differences is just too great. Sure, the sumptuous sets and costumes are a big attraction, but the narrative technique has bee- how shall I put it?- a bit anglicized, which is necessary for cultural export. Judging by the responses, this legend, which, contrary to the claim of the English trailer, is totally fictitious, has departed from China but not yet landed on American shores. I am a big fan of Ralph Waldo Emerson39。從開始選題到中期修正,再到最終定稿,老師給我提供了許多寶貴建議 ,他們教會我的不僅僅是專業(yè)知識,更多的是對待學(xué)習(xí)、對待生活的態(tài)度,沒有這樣的幫助和熏陶,我不會這么順利的完成畢業(yè)設(shè)計。 第一,墊板整治:在夏季氣溫較高時,木枕地段,分別在接頭處的 4— 6 根軌枕上墊竹墊板。 接頭上沖擊動力,導(dǎo)致線路病害,增加養(yǎng)護(hù)維修工作的困難。 鋼軌破損。 18 調(diào)整好小半徑曲線各部尺寸是基礎(chǔ) 日常養(yǎng)護(hù)維修中藥做好小半徑曲線范圍內(nèi)的長平,消滅漫坑,小坑及低接頭。紅橫線上面標(biāo)明軌面至接觸網(wǎng)導(dǎo)線的高度;紅橫線下面標(biāo)明隧道邊墻或支柱內(nèi)側(cè)至線路中心的距離;紅橫線的高程為鋼軌頂面設(shè)計標(biāo)高。 1. 撬棍應(yīng)加裝絕緣膠套管,防止撬棍搭在兩根鋼軌上造成電路短路,影響信號正常顯示。 ( 6)調(diào)高墊板的規(guī)格尺寸和使用要求: ① 規(guī)格尺寸:長度為 185mm,寬枕比軌低榨 2mm,厚度分為 15mm 等。車架強(qiáng)度和剛度通過靜強(qiáng)度加載試驗,能夠滿足大列連掛高速走行要求。大型軌道動力穩(wěn)定車主要代表機(jī)型是 WD320 型軌道動力穩(wěn)定車。道昨在整個斷面內(nèi)的均勻回填可以8 減少清篩作業(yè)后搗固作業(yè)線路的起道量。 關(guān)鍵詞: 既有線 線路 小半徑曲線 道岔 接頭 2 Abstract Railway rail lines is the main part of its lootive under vehicle load, and preach to the sleeper, guide the direction of the stand or fall of rail state directly influences the quality of the line maintenance, traffic safety and service life of the under the role of nature and the operation of the train is inevitably produce rust, wear and normal circumstances, the erosion of nature is far less than the operation of the train effect caused by the rail in the small radius curve rail, due to the existence of train wheel curve rail to the guiding role of interaction between wheel and rail gelling, creep and sliding, wheel/rail wear and damage is very in the curve rail abrasion, causing geometry change, effective cross section decreases, and seriously affect the operation safety, during the internship practice exercise and can further grasp the line through the various technical standard, improve operation skills, the circuit switch and connectors for inspection, to ensure driving safety. Key Words: Shjiazhuangtaiyuan passengerdedicated lines, small radius curve , switch joint 3
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