【摘要】：隨著城市規(guī)模的擴大和城市形態(tài)的變化以及交通方式的立體發(fā)展,交通擁堵現(xiàn)象成為現(xiàn)代城市交通的常態(tài),隧道工程等地下空間工程的開發(fā)與利用有效的解決城市交通擁擠問題,同時也存在一些問題,如地表沉降及對周邊建筑物的損傷等問題。因此,本文在現(xiàn)有的研究基礎上進行了以下幾個方面的研究:(1)從隧道施工引起的地表沉降規(guī)律著手,闡述引起地表沉降各種影響因素,進而分析影響建筑物損傷的原因,論述了隧道模擬過程的理論依據(jù)。(2)在闡述青島隧道施工所引發(fā)地表沉降對建筑物損傷規(guī)律的基礎上。根據(jù)施工的特點,采用ABAQUS對不同施工工法隧道施工引發(fā)的地表沉降進行分析,由此得出雙側壁導坑法、CRD法、上下臺階法、全斷面開挖法的沉降量是依次增大;從隧道開挖的地質條件、受力特點來看,最優(yōu)選是雙側壁導坑法,依次分別是CRD法、上下臺階法、全斷面開挖法,由此在選擇施工方案的時候,需要綜合考慮,分步越多,施工復雜,最終會影響圍巖的整體性。(3)對隧道開挖引起建筑物沉降進行分析,運用Midas分析了地表框架結構在不同開挖工法過程中沉降形態(tài),得出沉降量從大到小依次為:全斷面法、上下臺階法、CRD法、雙側壁導坑法。通過地表沉降量與建筑物沉降量的對比,其沉降曲線相似,但是由于建筑結構剛度和建筑結構荷載的存在,地表變形與建筑變形引起的地表沉降量存在一定差異,但沉降差異不大,分別為0.28%、14.99%、15.2%、12.6%。(4)開挖前,對地表進行有效控制出發(fā),根據(jù)當?shù)厮牡刭|條件,對青島隧道施工措施加以優(yōu)化,并給出對沿線建筑物損傷的防治措施。通過淺埋暗挖施工工法引發(fā)的沉降規(guī)律,驗證了 Peck公式,對實際也起到一定的借鑒作用,對合理利用地下空間提供可參考的依據(jù)。
[Abstract]:With the expansion of urban scale, the change of urban form and the three-dimensional development of traffic mode, traffic congestion has become the norm of modern urban traffic. The development and utilization of underground space engineering, such as tunnel engineering, can effectively solve the problem of urban traffic congestion. At the same time, there are also some problems, such as surface subsidence and damage to surrounding buildings. Therefore, on the basis of the existing research, this paper studies the following aspects: (1) starting from the law of surface subsidence caused by tunnel construction, this paper expounds the various factors that affect the surface settlement, and then analyzes the reasons that affect the damage of buildings. The theoretical basis of tunnel simulation process is discussed. (2) on the basis of describing the law of building damage caused by ground subsidence caused by tunnel construction in Qingdao. According to the characteristics of construction, ABAQUS is used to analyze the surface subsidence caused by tunnel construction with different construction methods. From this, it is concluded that the settlement of double-sidewall tunnel method, CRD method, up-and-down step method, and full-section excavation method is increased in turn. According to the geological conditions and stress characteristics of tunnel excavation, the best choice is double-sidewall guide pit method, followed by CRD method, upper and lower step method, and full-section excavation method respectively. Therefore, when selecting construction plan, it needs to be considered comprehensively, and the more steps are taken into account, Complex construction will eventually affect the integrity of surrounding rock. (3) the settlement of buildings caused by tunnel excavation is analyzed, and the settlement patterns of surface frame structures in different excavation methods are analyzed by using Midas. The order of settlement from large to small is as follows: full section method, upper and lower step method, CRD method, double side wall guide pit method. The settlement curve is similar through the comparison between the surface settlement and the building settlement. However, due to the existence of the building structure stiffness and the building structure load, the surface settlement caused by the surface deformation and the building deformation is different to a certain extent. However, there is no significant difference in settlement, which is 0.28 and 14.99 respectively. (4) before excavation, the ground surface is effectively controlled and the construction measures of Qingdao Tunnel are optimized according to the local hydrogeological conditions. The measures to prevent and cure the damage of buildings along the route are also given. Through the settlement law caused by shallow excavation construction method, the Peck formula is verified, which can be used for reference in practice and can be used as a reference for rational utilization of underground space.
【學位授予單位】：山東科技大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：U455.4

【參考文獻】

相關期刊論文 前10條

1 吳大國;汪明武;張薇薇;;基于加速遺傳算法的FAHP在深基坑支護方案優(yōu)選中的應用[J];合肥工業(yè)大學學報(自然科學版);2008年03期

2 彭軍龍;張學民;陽軍生;張起森;;地鐵深基坑支護的遺傳神經(jīng)網(wǎng)絡位移反分析[J];巖土力學;2007年10期

3 莫海鴻;鄧飛皇;王軍輝;;營運期地鐵盾構隧道動力響應分析[J];巖石力學與工程學報;2006年S2期

4 李志高;劉國彬;曾遠;吳小將;;基坑開挖引起下方隧道的變形控制[J];地下空間與工程學報;2006年03期

5 姚海波;王夢恕;張頂立;孔恒;;熱力隧道下穿地面建筑物的安全評價與對策[J];巖土力學;2006年01期

6 卿偉宸;廖紅建;錢春宇;;地下隧道施工對相鄰建筑物及地表沉降的影響[J];地下空間與工程學報;2005年06期

7 曹紅林;;某管線隧道工程對下穿建筑物的影響分析[J];鐵道勘測與設計;2005年04期

8 許江,顧義磊,康驥鳴;隧道與地表構筑物相互影響的研究[J];巖土力學;2005年06期

9 劉海燕,姜玉松;隧道開挖對地表及建筑物影響的研究與分析[J];西部探礦工程;2005年03期

10 童林旭;中國城市地下空間的發(fā)展道路[J];地下空間與工程學報;2005年01期

相關博士學位論文 前1條

1 韓煊;隧道施工引起地層位移及建筑物變形預測的實用方法研究[D];西安理工大學;2007年

相關碩士學位論文 前1條

1 張洪飛;鄰近土坡樁土動力相互作用的數(shù)值模擬研究[D];合肥工業(yè)大學;2007年

，

本文編號：2406188