本文關(guān)鍵詞： 長(zhǎng)大硬巖隧道 鉆爆法施工 快速掘進(jìn)技術(shù) 循環(huán)進(jìn)尺　出處：《西南交通大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：當(dāng)今隧道建設(shè),長(zhǎng)大隧道建設(shè)趨勢(shì)日趨明顯,在此背景下,如何在確保安全施工的前提下盡量提高鉆爆法施工掘進(jìn)速度及效率就顯得更為必要。本論文以山西長(zhǎng)平高速公路虹梯關(guān)長(zhǎng)大隧道為工程依托,綜合采用資料調(diào)研、數(shù)值模擬、理論分析等多種研究方法,重點(diǎn)針對(duì)長(zhǎng)大硬巖公路隧道鉆爆法快速掘進(jìn)技術(shù)參數(shù)進(jìn)行研究,研究成果有效指導(dǎo)了依托工程實(shí)際。論文主要工作如下：(1)基于圍巖松動(dòng)圈理論,研究不同爆破循環(huán)進(jìn)尺下隧道圍巖應(yīng)力、變形等分布規(guī)律及特征,明確循環(huán)進(jìn)尺與圍巖穩(wěn)定性的相關(guān)關(guān)系,并據(jù)此提出了安全的爆破循環(huán)進(jìn)尺建議值；(2)研究了爆破循環(huán)尺寸與隧道超欠挖量、出渣量、工期等施工組織因素間相關(guān)性關(guān)系,并據(jù)此從施工組織角度出發(fā),同時(shí)結(jié)合施工安全性要求,最終得出合理爆破循環(huán)進(jìn)尺建議值。
[Abstract]:Nowadays, the trend of tunnel construction and long tunnel construction is becoming more and more obvious. It is more necessary to improve the speed and efficiency of drilling and blasting construction under the premise of ensuring safe construction. This paper takes Hongtianguan long tunnel of Changping Expressway in Shanxi Province as engineering support, synthetically adopts data investigation and numerical simulation. Theoretical analysis and other research methods focus on the technical parameters of drilling and blasting method for long and long hard rock highway tunnels. The research results effectively guide the practice of supporting engineering. The main work of this paper is as follows: 1) based on the theory of surrounding rock loosening zone, The distribution law and characteristics of surrounding rock stress and deformation in tunnel under different blasting cycle advance are studied, and the relationship between circular advance and surrounding rock stability is clarified. On the basis of this, the authors put forward the safe value of the blasting cycle scale and the correlation between the blasting cycle size and the construction organization factors, such as the amount of excess underexcavation, the amount of slag produced, the duration of construction, etc., and based on this, the author proceeded from the point of view of the construction organization. At the same time, combined with the construction safety requirements, the rational blasting cycle of the recommended value.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U455.41

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