【摘要】：隨著隧道施工技術(shù)在國內(nèi)外的快速發(fā)展，和近年來城市基礎(chǔ)建設(shè)的迅速推進(jìn)，市政建設(shè)中采用隧道施工的項(xiàng)目也越來越多。但是城市空間狹小，隧道的施工不可避免地會對其周邊環(huán)境產(chǎn)生影響，近年來由于處理不當(dāng)造成地表下沉、房屋傾斜甚至倒塌等既有結(jié)構(gòu)嚴(yán)重受損的案例屢見不鮮。所以，隧道施工對環(huán)境的影響已成為巖土工程學(xué)科的重要研究內(nèi)容之一。 巖土工程進(jìn)行研究的主要方法有數(shù)值模擬和模型試驗(yàn)兩種。模型試驗(yàn)相對于數(shù)值模擬而言，可比較真實(shí)地模擬施工現(xiàn)場情況，并能為數(shù)值模擬提供一定參考，具有不可替代的作用。目前巖土工程模型試驗(yàn)多以研究施工參數(shù)為目的，設(shè)計(jì)原理多與現(xiàn)場施工手段類似。而本文基于位移控制法的思路，，忽略施工過程，提出以研究隧道施工對環(huán)境影響為目的的模型試驗(yàn)方法。主要包括以下幾方面內(nèi)容： （1）以位移控制法為基礎(chǔ)，為實(shí)現(xiàn)試驗(yàn)的可重復(fù)性，完善土體材料密度控制方法和均勻性控制方法，確定模型試驗(yàn)方法。完成模型試驗(yàn)材料物理性質(zhì)相關(guān)試驗(yàn)，為模型試驗(yàn)和后續(xù)數(shù)值模擬提供參數(shù)依據(jù)。 （2）根據(jù)模型試驗(yàn)原理，結(jié)合模型試驗(yàn)相似關(guān)系，研制模型試驗(yàn)裝置。 （3）確定整個(gè)模型試驗(yàn)操作流程，就自由場（Green Field）驗(yàn)證試驗(yàn)、隧道施工對鄰近樁基的影響規(guī)律和隧道穿越高速公路這三種工況，針對覆土厚度、土層相對密度、樁基水平距離等不同參數(shù)，分別制定模型試驗(yàn)方案，完成模型試驗(yàn)，并對結(jié)果進(jìn)行分析。 （4）針對各組模型試驗(yàn)建立有限元模型，使用Gleaves軟件完成各有限元模型的數(shù)值模擬，并將數(shù)值模擬結(jié)果與模型試驗(yàn)結(jié)果進(jìn)行對比分析。
[Abstract]:With the rapid development of tunnel construction technology at home and abroad and the rapid development of urban infrastructure in recent years, more and more projects are adopted in municipal construction. However, due to the narrow space in the city, the tunnel construction will inevitably have an impact on the surrounding environment. In recent years, due to improper treatment caused by surface subsidence, housing tilt or even collapse of existing structures such as serious damage cases are common. Therefore, the impact of tunnel construction on the environment has become one of the important research contents of geotechnical engineering. There are two main methods for geotechnical engineering research: numerical simulation and model test. Compared with the numerical simulation, the model test can simulate the construction site more truthfully, and can provide a certain reference for the numerical simulation, which is irreplaceable. At present, most geotechnical engineering model tests are aimed at studying construction parameters, and the design principles are similar to those of field construction methods. Based on the idea of displacement control and ignoring the construction process, this paper puts forward a model test method to study the environmental impact of tunnel construction. The main contents are as follows: (1) based on the displacement control method, in order to achieve the repeatability of the test, improve the control method of soil material density and uniformity, determine the model test method. The physical properties related tests of model test materials are completed to provide parameter basis for model test and subsequent numerical simulation. (2) according to the principle of model test and the similarity relation of model test, (3) determine the operation flow of the whole model test, according to the free field (Green Field) test, the influence law of tunnel construction on the adjacent pile foundation and the tunnel crossing highway, aiming at the overlying soil thickness, Different parameters, such as relative density of soil layer, horizontal distance of pile foundation and so on, are worked out respectively to complete the model test, and the results are analyzed. (4) the finite element model is established for each group of model tests. The numerical simulation of each finite element model is completed by using Gleaves software, and the numerical simulation results are compared with the results of the model test.
【學(xué)位授予單位】：上海交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U456.3

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 程展林,吳忠明,徐言勇;砂基中泥漿盾構(gòu)法隧道施工開挖面穩(wěn)定性試驗(yàn)研究[J];長江科學(xué)院院報(bào);2001年05期

2 馬險(xiǎn)峰;何藺蕎;王俊淞;;軟土地區(qū)新建盾構(gòu)隧道下穿越既有隧道的離心模擬研究[J];長江科學(xué)院院報(bào);2012年01期

3 劉新榮;郭子紅;王吉明;裴麗;林志;王芳其;;交錯新建隧道施工力學(xué)特性模型試驗(yàn)[J];重慶大學(xué)學(xué)報(bào);2010年12期

4 何川;汪洋;方勇;謝俊;趙強(qiáng)政;;土壓平衡式盾構(gòu)掘進(jìn)過程的相似模型試驗(yàn)[J];土木工程學(xué)報(bào);2012年02期

5 張厚美,傅德明,過遲;盾構(gòu)隧道管片接頭荷載試驗(yàn)研究[J];現(xiàn)代隧道技術(shù);2002年06期

6 李圍,何川,張志強(qiáng);大型地下結(jié)構(gòu)下修建盾構(gòu)隧道模型試驗(yàn)[J];西南交通大學(xué)學(xué)報(bào);2005年04期

7 徐前衛(wèi);朱合華;廖少明;傅德明;于寧;汪成兵;;砂土地層盾構(gòu)法施工的地層適應(yīng)性模型試驗(yàn)研究[J];巖石力學(xué)與工程學(xué)報(bào);2006年S1期

8 袁大軍;黃清飛;小泉淳;王夢恕;;水底盾構(gòu)掘進(jìn)泥水噴發(fā)現(xiàn)象研究[J];巖石力學(xué)與工程學(xué)報(bào);2007年11期

9 韓月旺;梁精華;袁小會;;盾構(gòu)隧道壁后注漿體變形模型及土體位移分析[J];巖石力學(xué)與工程學(xué)報(bào);2007年S2期

10 黃茂松;張治國;王衛(wèi)東;;基于位移控制邊界單元法盾構(gòu)隧道開挖引起分層土體變形分析[J];巖石力學(xué)與工程學(xué)報(bào);2009年12期

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