發(fā)布時(shí)間：2018-04-17 11:47

  本文選題：黃土隧道塌方 + 塌方影響因素�。� 參考：《長(zhǎng)安大學(xué)》2014年碩士論文

【摘要】：本文以十堰至天水國(guó)家高速公路甘肅段控制性工程關(guān)同隧道左線出口拱頂坍塌為研究對(duì)象，在對(duì)我國(guó)以往黃土隧道塌方事故調(diào)查的基礎(chǔ)上，利用地質(zhì)雷達(dá)探測(cè)關(guān)同隧道左線出口塌方段降雨前后含水量的變化，并結(jié)合塌方力學(xué)機(jī)理分析、數(shù)值模擬分析等手段，，從理論上分析塌方原因，結(jié)果表明：土體含水量的增大和黃土特殊的物理力學(xué)性質(zhì)是導(dǎo)致隧道塌方的關(guān)鍵因素，同時(shí)洞口CD開(kāi)挖法產(chǎn)生的偏壓和人為因素也是導(dǎo)致隧道塌方的重要原因。并由此提出相應(yīng)的處治方法。塌方處置后，通過(guò)實(shí)地監(jiān)控量測(cè)和治理后數(shù)值模擬分析，對(duì)塌方治理效果進(jìn)行評(píng)估，證實(shí)本次坍塌處理方案的有效性。
[Abstract]:In this paper, the collapse of the left exit dome of Guantong Tunnel in the control project of Gansu section of Shiyan to Tianshui State Expressway is taken as the research object. Based on the investigation of the previous collapse accidents of loess tunnel in China,By using GPR to detect the change of water content before and after rainfall at the left exit of Guantong Tunnel, combined with mechanical mechanism analysis and numerical simulation analysis of collapse, the causes of collapse are analyzed theoretically.The results show that the increase of soil water content and the special physical and mechanical properties of loess are the key factors leading to tunnel collapse, and the bias and artificial factors caused by CD excavation are also the important causes of tunnel collapse.From this, the corresponding treatment method is put forward.After the collapse is disposed, the effectiveness of the collapse treatment is evaluated by monitoring and measurement on the ground and numerical simulation analysis after treatment, and the effectiveness of the scheme is verified.
【學(xué)位授予單位】：長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：U458.3

【參考文獻(xiàn)】

相關(guān)期刊論文 前6條

1 李武斌;王勇;黃彬;;黃土隧道塌方處理技術(shù)[J];國(guó)防交通工程與技術(shù);2012年02期

2 趙中華;;淺埋富水黃土隧道開(kāi)挖支護(hù)及塌方預(yù)防施工技術(shù)[J];鐵道建筑技術(shù);2012年03期

3 朱偉;黃土隧道塌方處理及原因淺析[J];西部探礦工程;2000年03期

4 孫斌科;燕家?guī)X黃土隧道的塌方處理[J];西部探礦工程;2002年06期

5 程選生;鄭穎人;;地震作用下無(wú)襯砌黃土隧道圍巖結(jié)構(gòu)安全系數(shù)的計(jì)算探討[J];巖土力學(xué);2011年03期

6 毛金沙;;淺埋黃土隧道塌方處理技術(shù)[J];科技創(chuàng)新導(dǎo)報(bào);2012年01期

本文編號(hào)：1763478