复理石隧道中悬臂掘进机开挖控制技术
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摘要
由于复理石具有频繁互层、单层薄、层间结合弱的特点,在此地层中采用钻爆法开挖隧道时轮廓成型困难,易出现超挖甚至坍塌,为解决上述问题,依托黑山共和国南北高速公路部分隧道,提出针对复理石特性的一种悬臂掘进机开挖隧道的施工方法,采用激光标识导向、特定岩石切割路线和精细修边等关键技术措施,阐述此方法的施工工艺流程,总结施工要点,并提出该工法的优点和推广应用前景。
Because ?ysch has the characteristics of frequent mutual strati?cation,thin single layer and weak combination between layers,it is dif?cult to form the tunnel during tunnel excavation by drilling and blasting method in this stratum,and it is easy to overexcavate or even collapse. To solve the above problems,relying on the partial tunnels of the North-South Highway in the Republic of Montenegro,a construction method for excavating a tunnel using a cantilever tunneling machine for the characteristics of ?y ash was proposed,and key techniques such as laser marking guidance,speci?c rock cutting routes,and ?ne edging were used to illustrate the method. Construction process,summary of construction points,and put forward the merits of the construction method and the promotion and application prospects.
Because ?ysch has the characteristics of frequent mutual strati?cation,thin single layer and weak combination between layers,it is dif?cult to form the tunnel during tunnel excavation by drilling and blasting method in this stratum,and it is easy to overexcavate or even collapse. To solve the above problems,relying on the partial tunnels of the North-South Highway in the Republic of Montenegro,a construction method for excavating a tunnel using a cantilever tunneling machine for the characteristics of ?y ash was proposed,and key techniques such as laser marking guidance,speci?c rock cutting routes,and ?ne edging were used to illustrate the method. Construction process,summary of construction points,and put forward the merits of the construction method and the promotion and application prospects.
引文
[1]孙泽顺.岩溶发育区地铁隧道悬臂式掘进机施工技术探究[J].工程建设,2017,49(12):72–77.
[2]杨秀才.悬臂式掘进机在贵阳地铁暗挖隧道中的施工应用技术初探[J].黑龙江交通科技,2016,39(10):137–138.
[3]林朝.悬臂式掘进机在暗挖隧道开挖中的应用[J].广东土木与建筑,2008(2):45–46.
[4]漆泰岳,李斌.悬臂掘进机在复杂断面地铁隧道中的应用研究[J].现代隧道技术,2011,48(4):32–38.
[5]项志敏,袁仁爱,罗田郎.浏阳河隧道悬臂掘进机铣挖工艺研究[J].铁道标准设计,2008(4):81–83.
[6]雷升祥,尹宜成.悬臂掘进机在铁路隧道施工中的应用探讨[J].铁道工程学报,2001(1):97–103,116.
[7]郭超,卢意,龚毅,等.复杂地下空间隧道开挖变形及受力数值模拟分析[J].建筑技术,2017,48(6):645–648.
[2]杨秀才.悬臂式掘进机在贵阳地铁暗挖隧道中的施工应用技术初探[J].黑龙江交通科技,2016,39(10):137–138.
[3]林朝.悬臂式掘进机在暗挖隧道开挖中的应用[J].广东土木与建筑,2008(2):45–46.
[4]漆泰岳,李斌.悬臂掘进机在复杂断面地铁隧道中的应用研究[J].现代隧道技术,2011,48(4):32–38.
[5]项志敏,袁仁爱,罗田郎.浏阳河隧道悬臂掘进机铣挖工艺研究[J].铁道标准设计,2008(4):81–83.
[6]雷升祥,尹宜成.悬臂掘进机在铁路隧道施工中的应用探讨[J].铁道工程学报,2001(1):97–103,116.
[7]郭超,卢意,龚毅,等.复杂地下空间隧道开挖变形及受力数值模拟分析[J].建筑技术,2017,48(6):645–648.