基于全电脑凿岩台车及湿喷机组的公路隧道施工关键技术研究
发布时间：2018-10-24 16:59
【摘要】：公路隧道常用的开挖方法包括钻爆法及掘进法,而对于山岭隧道来说,主要还是应用钻爆开挖,常用的爆破孔钻眼机具为气动凿岩机配自制台架或凿岩台车。对于两种钻眼方式,相对于凿岩台车,气动凿岩机配合自制台架施工成本低,但是施工效率低、作业环境恶劣、工人劳动强大繁重。而凿岩台车虽然自身价格较高,但是施工效率高、施工质量好、自动化程度高、工人劳动强度低、施工环境安全。随着绿色施工的提倡,运用全电脑凿岩台车代替人工风钻开挖以及湿喷技术运用于隧道初期支护将是必然趋势。本文结合港珠澳大桥珠海连接线南湾隧道实际施工情况,对基于全电脑凿岩台车开挖与湿喷初期支护的施工方法进行了深入研究。文章首先回顾了国内外电脑凿岩台车的研究现状,以及电脑凿岩台车施工技术发展情况。然后,介绍了基于全电脑凿岩台车开挖与湿喷初期支护的施工方法的基本原理——新奥法原理及控制爆破原理。文章对运用全电脑凿岩台车的几种隧道施工方法进行了讨论,将全电脑台车运用于全断面法、微台阶法、长台阶法、双车同时作业。重点讨论了钻爆开挖几个关键工序:钻爆设计、钻眼、装药、爆破通风、降尘、出碴等,继而对湿喷初次支护原理及湿喷施工技术进行了讨论,对各工序不同的施工方法进行了横向对比,得出了一些结论。对隧道爆破及初期支护过程中围岩的稳定性情况进行了模拟以及实际量测的讨论。开挖理论与实践都可以证明,这些施工方法的运用既安全合理又具有很大的优势,对今后类似工程实践由一定的参考作用。对基于全电脑凿岩台车和湿喷技术的隧道开挖施工组织进行了优化,从优化工序和缩短工期两个方面进行了探讨。所有分析结果表明,基于全电脑凿岩台车及湿喷机组初期支护是先进的隧道施工方法,具有相当适应性的,特别在中长或特长山岭隧道的施工中,具有施工质量高、掘进快速、施工环境好等优点,将是未来隧道施工的发展趋势。
[Abstract]:The common excavation methods of highway tunnel include drilling and blasting method and tunneling method. For the mountain tunnel, drilling and blasting are mainly used. The commonly used blasting hole drilling machine is pneumatic drilling machine and self-made bench or rock drill car. For the two drilling methods, compared with the drilling rig, the pneumatic rock drill with self-made bench construction cost is low, but the construction efficiency is low, the working environment is bad, and the workers' labor is strong and arduous. Although the price of rock drilling platform is high, the construction efficiency is high, the construction quality is good, the degree of automation is high, the labor intensity of workers is low, and the construction environment is safe. With the promotion of green construction, it is an inevitable trend to use full computer drilling bench instead of artificial air drill excavation and wet jet technology in the initial support of tunnel. Based on the actual construction of Nanwan Tunnel of Zhuhai connecting Line of HongKong-Zhuhai-Macao Bridge, this paper makes a deep study on the construction method of excavating and wet-shotcreting initial support based on full-computer drilling platform. This paper first reviews the research status of computer drilling bench at home and abroad, as well as the development of construction technology of computer drilling platform. Then, the paper introduces the basic principle of the construction method of excavating and wet spraying initial support based on the whole computer drilling bench, namely, the principle of the new Austrian method and the principle of controlled blasting. In this paper, several tunnel construction methods using full computer drilling bench are discussed, and the whole computer bench is applied to the whole section method, micro step method, long step method and double car working simultaneously. Several key processes of drilling and blasting excavation are emphatically discussed: drilling and blasting design, drilling hole, charging, blasting ventilation, dust reduction, ballast extraction, etc. Then, the principle of primary support by wet jet and the construction technology of wet jet are discussed. The construction methods of different working procedures are compared horizontally and some conclusions are drawn. The stability of surrounding rock during tunnel blasting and initial support is simulated and the actual measurement is discussed. The excavation theory and practice can prove that the application of these construction methods is both safe and reasonable and has great advantages, which can be used as a reference for the practice of similar projects in the future. This paper optimizes the construction organization of tunnel excavation based on full computer drilling bench and wet jet technology, and probes into two aspects: optimizing working procedure and shortening construction period. All the analysis results show that the initial support of the whole computer drilling bench and wet jet unit is an advanced tunnel construction method, and has quite adaptability, especially in the construction of the medium or super long mountain tunnel, the construction quality is high and the driving speed is fast. The advantages of good construction environment will be the development trend of tunnel construction in the future.
【学位授予单位】：重庆交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U455.4
本文编号：2291986
[Abstract]:The common excavation methods of highway tunnel include drilling and blasting method and tunneling method. For the mountain tunnel, drilling and blasting are mainly used. The commonly used blasting hole drilling machine is pneumatic drilling machine and self-made bench or rock drill car. For the two drilling methods, compared with the drilling rig, the pneumatic rock drill with self-made bench construction cost is low, but the construction efficiency is low, the working environment is bad, and the workers' labor is strong and arduous. Although the price of rock drilling platform is high, the construction efficiency is high, the construction quality is good, the degree of automation is high, the labor intensity of workers is low, and the construction environment is safe. With the promotion of green construction, it is an inevitable trend to use full computer drilling bench instead of artificial air drill excavation and wet jet technology in the initial support of tunnel. Based on the actual construction of Nanwan Tunnel of Zhuhai connecting Line of HongKong-Zhuhai-Macao Bridge, this paper makes a deep study on the construction method of excavating and wet-shotcreting initial support based on full-computer drilling platform. This paper first reviews the research status of computer drilling bench at home and abroad, as well as the development of construction technology of computer drilling platform. Then, the paper introduces the basic principle of the construction method of excavating and wet spraying initial support based on the whole computer drilling bench, namely, the principle of the new Austrian method and the principle of controlled blasting. In this paper, several tunnel construction methods using full computer drilling bench are discussed, and the whole computer bench is applied to the whole section method, micro step method, long step method and double car working simultaneously. Several key processes of drilling and blasting excavation are emphatically discussed: drilling and blasting design, drilling hole, charging, blasting ventilation, dust reduction, ballast extraction, etc. Then, the principle of primary support by wet jet and the construction technology of wet jet are discussed. The construction methods of different working procedures are compared horizontally and some conclusions are drawn. The stability of surrounding rock during tunnel blasting and initial support is simulated and the actual measurement is discussed. The excavation theory and practice can prove that the application of these construction methods is both safe and reasonable and has great advantages, which can be used as a reference for the practice of similar projects in the future. This paper optimizes the construction organization of tunnel excavation based on full computer drilling bench and wet jet technology, and probes into two aspects: optimizing working procedure and shortening construction period. All the analysis results show that the initial support of the whole computer drilling bench and wet jet unit is an advanced tunnel construction method, and has quite adaptability, especially in the construction of the medium or super long mountain tunnel, the construction quality is high and the driving speed is fast. The advantages of good construction environment will be the development trend of tunnel construction in the future.
【学位授予单位】：重庆交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U455.4
【参考文献】
相关期刊论文 前1条
1 徐稳超;汤宪高;;贵广铁路双线隧道钻爆法施工机械化配套及适用性分析[J];隧道建设;2013年06期
相关硕士学位论文 前1条
1 王传利;空气间隙小耦合装药爆破作用的理论和实验研究[D];武汉科技大学;2012年
，本文编号：2291986
本文链接：https://www.wllwen.com/kejilunwen/daoluqiaoliang/2291986.html
