皮帶出渣條件下TBM掘進(jìn)與襯砌同步施工技術(shù)研究
發(fā)布時(shí)間:2018-03-13 06:38
本文選題:TBM 切入點(diǎn):連續(xù)皮帶出渣 出處:《石家莊鐵道大學(xué)》2015年碩士論文 論文類型:學(xué)位論文
【摘要】:以往TBM掘進(jìn)施工過(guò)程中不論采用有軌運(yùn)輸方式出渣還是連續(xù)皮帶出渣,都是TBM掘進(jìn)完成后施作二次模筑襯砌,工期較長(zhǎng),并且與新奧法施工原理不相符,不利于施工安全,不滿足施工周期不斷縮短的要求,為此,結(jié)合西秦嶺隧道施工實(shí)踐,研究了連續(xù)皮帶出渣工況下,開敞式TBM與二次模筑混凝土襯砌同步施工技術(shù),并得以成功應(yīng)用。主要內(nèi)容包括TBM掘進(jìn)施工工藝、小邊墻施工工藝、二次模筑混凝土襯砌施工工藝及相互之間的協(xié)調(diào)組織。主要研究?jī)?nèi)容包括:(1)研制適用的襯砌同步作業(yè)臺(tái)車。襯砌同步作業(yè)臺(tái)車已經(jīng)研制成功,應(yīng)用于西秦嶺隧道,并取得了良好的效果。(2)TBM掘進(jìn)、二次襯砌同步施工的同時(shí),臺(tái)車走行小邊墻集中澆筑工藝。臺(tái)車走行小邊墻的設(shè)置,要綜合考慮隧道永久襯砌結(jié)構(gòu),在保證臺(tái)車走行的前提下,減少投入,避免窩工返工和重復(fù)作業(yè)。(3)襯砌同步作業(yè)防水板鋪設(shè)臺(tái)車設(shè)計(jì)以及工藝完善。防水板鋪設(shè)臺(tái)車,同樣要解決襯砌同步作業(yè)臺(tái)車所面臨的管線與連續(xù)皮帶穿行等問(wèn)題,在襯砌臺(tái)車設(shè)計(jì)制造的基礎(chǔ)上設(shè)計(jì)制造了適用、簡(jiǎn)單的臺(tái)車,并形成了作業(yè)快捷、移動(dòng)方便、利于管線與連續(xù)皮帶穿行的施工工藝。(4)形成工法予以推廣。總結(jié)本項(xiàng)目在西秦嶺隧道的實(shí)施經(jīng)驗(yàn),形成工法,在相關(guān)隧道施工中予以推廣;同時(shí)結(jié)合不同項(xiàng)目的特點(diǎn)繼續(xù)優(yōu)化調(diào)整襯砌同步作業(yè)臺(tái)車、防水板鋪設(shè)臺(tái)車、小邊墻施工工藝,優(yōu)化連續(xù)皮帶出碴條件下開敞式TBM掘進(jìn)與二次襯砌同步施工的工藝流程,使之滿足新工程的要求。研究了本工程實(shí)現(xiàn)襯砌同步作業(yè)需要解決的關(guān)鍵問(wèn)題、可能采取的解決措施、細(xì)化各項(xiàng)技術(shù)指標(biāo)和邊界條件,反復(fù)研討、多方案對(duì)比分析,最終確定了襯砌同步作業(yè)施工方案以及襯砌同步作業(yè)臺(tái)車設(shè)計(jì)方案,在后期臺(tái)車調(diào)試和連續(xù)皮帶安裝過(guò)程中進(jìn)一步細(xì)化方案實(shí)施細(xì)則,使得這個(gè)在國(guó)際上尚未成功應(yīng)用的技術(shù)難題首次真正得以解決,開創(chuàng)了國(guó)內(nèi)在此領(lǐng)域內(nèi)的施工先河。
[Abstract]:In the past TBM tunneling construction process, whether by rail transportation or continuous belt slag, is the second formwork lining after the completion of TBM tunneling, the construction period is longer, and it is inconsistent with the construction principle of the new Austrian method, which is not conducive to construction safety. For this reason, combined with the construction practice of West Qinling Tunnel, the construction technology of open TBM and secondary formwork concrete lining under the condition of continuous belt slag extraction is studied. The main contents include the construction technology of TBM tunneling, the construction technology of small side wall, The construction technology and coordination organization of the secondary formwork concrete lining. The main research contents include the development of the suitable lining synchronous working platform, which has been successfully developed and used in the West Qinling Tunnel, Good results have been obtained. TBM tunneling and secondary lining synchronous construction. At the same time, at the same time, the centralized pouring process of the small side wall is carried out. The installation of the small side wall should take into account the permanent lining structure of the tunnel comprehensively, and on the premise of ensuring the running of the platform car, Reduce investment, avoid nest rework and repeat work. 3) lining synchronous operation waterproofing board laying platform car design and technology improvement. Waterproof board laying platform car, also need to solve the lining synchronous working platform car faced by pipeline and continuous belt through, etc. On the basis of the design and manufacture of the lining platform car, the suitable and simple platform car is designed and manufactured, and the operation is fast and the movement is convenient. The forming method of pipeline and continuous belt is popularized. The experience of this project in the West Qinling Tunnel is summarized, the construction method is formed, and the method is popularized in the relevant tunnel construction. At the same time, combined with the characteristics of different projects, we continue to optimize and adjust the lining synchronous working platform, waterproof board laying platform, small sidewall construction technology, optimize the process flow of open TBM tunneling and secondary lining synchronous construction under the condition of continuous belt ballast extraction. In order to meet the requirements of the new project, the key problems that need to be solved in the realization of synchronous lining operation in this project, the possible solutions, the refinement of various technical indicators and boundary conditions, the repeated discussion, and the comparative analysis of multiple schemes are studied. Finally, the construction plan of lining synchronous operation and the design scheme of lining synchronous working platform are determined. In the later stage of bench car debugging and continuous belt installation, the detailed implementation rules of the scheme are further refined. This technical problem, which has not been successfully applied in the world, has been solved for the first time, creating the first construction in this field in China.
【學(xué)位授予單位】:石家莊鐵道大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類號(hào)】:U455.4
【參考文獻(xiàn)】
相關(guān)期刊論文 前1條
1 周雁領(lǐng);;TBM盤形滾刀的質(zhì)量控制及其檢測(cè)維修技術(shù)[J];現(xiàn)代隧道技術(shù);2007年03期
,本文編號(hào):1605206
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