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Construction method of strong karst water-rich urban shallow-buried tunnel cantilever boring machine

机译:岩溶富水城市浅埋隧道悬臂掘进机施工方法

摘要

#$%^&*AU2017101825A420180329.pdf#####ABSTRACT The present invention discloses a construction method of a strong karst water-rich urban shallow-buried tunnel cantilever boring machine, comprising the steps of: measuring and 5 locating an excavated tunnel surface and using an advanced geological forecasting system to carry out geological survey; excavating the rock mass using a cantilever boring machine and cutting teeth thereabove; loading with an excavator behind the boring machine, transporting the slag stones to a silo hopper using a transporter or a belt conveyor, and then raising the slag stones to the ground through a hopper, when the slag stones accumulate to a certain amount; 0 retracting the boring machine to the position at a distance behind the tunnel surface after the tunnel surface completes an excavation cycle, and then constructing an anchor rod, and erecting a steel truss; carrying out initial lining construction of shotcrete, and closing the excavated rock surface; and carrying out secondary lining concrete pouring construction, and forming a forming tunnel. The beneficial effects of the present invention are as follows: the excavation is 5 carried out in a manner of peeling off rock strata layer by layer using the cantilever boring machine, which has less impact on the surroundings, improves the construction safety and quality, improves the construction efficiency and reduces the construction cost simultaneously.1/1 FIG I FIG 2
机译:#$%^&* AU2017101825A420180329.pdf #####抽象本发明公开了一种强岩溶富水城市的施工方法。浅埋隧道悬臂掘进机,包括以下步骤:测量和5定位挖掘的隧道地面并使用先进的地质预报系统进行地质调查;使用悬臂镗床挖掘岩体,然后在其上切牙;在掘进机后面装载挖掘机,然后运输用运输机或皮带输送机将矿渣石料送入料仓,然后升高矿渣当炉渣中的石块积累到一定量时,通过料斗将石块倒入地面;0掘进后将掘进机缩回到隧道表面后面一定距离的位置隧道表面完成开挖周期,然后构造锚杆,并竖立钢桁架;进行喷射混凝土的初期衬砌施工,并封闭开挖的岩石表面;进行二次衬砌混凝土浇筑施工,形成形成隧道。本发明的有益效果如下:使用悬臂镗孔以逐层剥离岩层的方式进行图5对环境影响较小的机器,提高了施工安全性,质量,提高了施工效率,同时降低了施工成本。1/1图一图2

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