本文關(guān)鍵詞： 施工荷載 盾構(gòu) 管片 力學(xué)響應(yīng) 三維有限元　出處：《哈爾濱工業(yè)大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：自改革開放以來，我國社會(huì)和經(jīng)濟(jì)都迎來了全新的發(fā)展，城市規(guī)模大幅度提高，城市人口也不斷增加，隨之而來的是城市人口增長與基礎(chǔ)設(shè)施建設(shè)之間矛盾的日益突出，首當(dāng)其沖的地面交通問題。為緩解地面交通壓力，全國各大城市紛紛開始建設(shè)地鐵項(xiàng)目。然而眾多工程實(shí)踐表明大量隧道襯砌管片在施工期間出現(xiàn)破損、錯(cuò)臺(tái)等問題，嚴(yán)重影響了地鐵隧道的使用壽命，研究施工荷載下盾構(gòu)隧道管片的力學(xué)響應(yīng)已經(jīng)成為一個(gè)亟待解決的問題。 本文主要從以下三個(gè)方面對(duì)盾構(gòu)管片在施工期間的力學(xué)響應(yīng)進(jìn)行分析： （1）施工荷載數(shù)據(jù)監(jiān)測(cè)。文章中對(duì)盾構(gòu)隧道施工期間的注漿壓力、千斤頂推力、盾尾擠壓力等施工荷載作了簡單介紹，并對(duì)日本堤干線排水隧道工程的施工荷載進(jìn)行了現(xiàn)場(chǎng)數(shù)據(jù)監(jiān)測(cè)，通過對(duì)監(jiān)測(cè)數(shù)據(jù)的整理得到施工過程中施工荷載的基本數(shù)據(jù)與變化規(guī)律。 （2）運(yùn)用考慮施工荷載的管片-土體相互作用有限元分析模型對(duì)日本堤干線排水隧道工程在施工期間管片力學(xué)特性進(jìn)行數(shù)值模擬分析。通過分析計(jì)算，得到管片在施工期間的變形、內(nèi)力等力學(xué)行為。 （3）不同施工荷載對(duì)管片力學(xué)響應(yīng)的影響分析。運(yùn)用考慮施工荷載的管片-土體相互作用有限元分析模型，對(duì)工程中可能遇到的小曲率半徑施工工況進(jìn)行模擬分析，同時(shí)通過改變單一施工荷載的量值，得到不同施工荷載對(duì)管片力學(xué)響應(yīng)的影響。 通過對(duì)施工期間管片力學(xué)響應(yīng)的有限元分析，總結(jié)出盾構(gòu)施工荷載中的千斤頂推力、注漿壓力以及盾尾與管片接觸力等施工荷載對(duì)管片結(jié)構(gòu)受力特性的影響，，針對(duì)現(xiàn)行盾構(gòu)管片設(shè)計(jì)中的不足給與建設(shè)性意見，在結(jié)構(gòu)設(shè)計(jì)模型中加以適當(dāng)?shù)目紤]，提高管片耐久性、增加隧道的使用壽命。
[Abstract]:Since the reform and opening up, China's society and economy have ushered in a new development, the scale of the city has greatly increased, the urban population is also increasing. The contradiction between urban population growth and infrastructure construction is increasingly prominent, the first ground transportation problem. In order to alleviate the ground traffic pressure. Many large cities have begun to build subway projects. However, a large number of engineering practices show that a large number of tunnel lining segments in the construction period appear damaged, staggered and other problems, which seriously affected the service life of subway tunnels. It is an urgent problem to study the mechanical response of shield tunnel segment under construction load. In this paper, the mechanical response of shield segment during construction is analyzed from the following three aspects: 1) data monitoring of construction load. This paper briefly introduces the grouting pressure, Jack thrust and shield tail extrusion force during the construction of shield tunnel. The construction load of the drainage tunnel project of dike trunk line in Japan is monitored on the spot, and the basic data and variation law of the construction load in the construction process are obtained through the collation of the monitoring data. The finite element analysis model of segment soil interaction considering the construction load is used to simulate the mechanical characteristics of the segment in the construction of the drainage tunnel of the main dike in Japan. The deformation, internal force and other mechanical behaviors of the segment during construction are obtained. 3) the influence of different construction loads on the mechanical response of segments is analyzed. The finite element analysis model of segment soil interaction considering construction load is used. This paper simulates and analyzes the construction conditions of small radius of curvature which may be encountered in engineering, and obtains the influence of different construction loads on the mechanical response of segments by changing the value of single construction load. Based on the finite element analysis of the mechanical response of segment during construction, the influence of Jack thrust, grouting pressure and contact force between shield tail and segment on the mechanical characteristics of segment structure is summarized. In order to improve the durability of shield segment and increase the service life of tunnel, some constructive suggestions are given in the design of shield segment.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U455.43

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 黃鐘暉,廖少明,侯學(xué)淵;盾構(gòu)法隧道錯(cuò)縫拼裝襯砌的受力分析[J];地下工程與隧道;2003年03期

2 趙永正;何平;梁英俊;趙杰;;地鐵隧道盾構(gòu)施工對(duì)新裝環(huán)管片受力的影響[J];都市快軌交通;2011年06期

3 盛佳韌;葉冠林;橋本正;劉朝明;;雙圓盾構(gòu)盾尾注漿對(duì)地層沉降的影響分析[J];地下空間與工程學(xué)報(bào);2014年01期

4 秦建設(shè),朱偉,陳劍;盾構(gòu)姿態(tài)控制引起管片錯(cuò)臺(tái)及開裂問題研究[J];施工技術(shù);2004年10期

5 周文波,鄭宜楓,滕麗,商濤平;雙圓盾構(gòu)隧道施工過程中管片力學(xué)性狀的原位測(cè)試研究[J];力學(xué)季刊;2005年03期

6 王暉,李大勇,夏廣紅;盾構(gòu)機(jī)盾尾注漿施工中存在的問題及其對(duì)策分析[J];蘇州科技學(xué)院學(xué)報(bào)(工程技術(shù)版);2004年01期

7 張志強(qiáng),何川,佘才高;南京地鐵盾構(gòu)掘進(jìn)施工的三維有限元仿真分析[J];鐵道學(xué)報(bào);2005年01期

8 葉飛;朱合華;丁文其;;基于螺栓接頭受力性能的盾尾注漿壓力控制[J];同濟(jì)大學(xué)學(xué)報(bào)(自然科學(xué)版);2009年03期

9 唐孟雄;陳如桂;陳偉;;廣州地鐵盾構(gòu)隧道施工中管片受力監(jiān)測(cè)與分析[J];土木工程學(xué)報(bào);2009年03期

10 戴志仁;;盾構(gòu)隧道襯砌結(jié)構(gòu)計(jì)算模型探討[J];鐵道工程學(xué)報(bào);2013年06期

相關(guān)博士學(xué)位論文 前3條

1 管會(huì)生;土壓平衡盾構(gòu)機(jī)關(guān)鍵參數(shù)與力學(xué)行為的計(jì)算模型研究[D];西南交通大學(xué);2008年

2 張新金;盾構(gòu)法與淺埋暗挖法結(jié)合建造地鐵車站關(guān)鍵技術(shù)研究[D];北京交通大學(xué);2010年

3 李宇杰;非連續(xù)接觸計(jì)算模型在盾構(gòu)襯砌力學(xué)特性方面的應(yīng)用研究[D];北京交通大學(xué);2012年

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