摘要
目前,铰接式盾构已成为修建曲线隧道的常用方法,要操纵铰接式盾构机,必须熟悉千斤顶、仿形刀和铰接机构 3 种装置的操作方法,但由于这3种装置在进行盾构掘进时具有很高的共线性,很难同时获得唯一的操作参数。为此,文章提出一种在一定约束条件下,根据几何条件确定仿形刀长度和铰接角度的数值方法,并给出该方法在三维复合定线中的应用实例及模拟分析结果。模拟结果分析表明,从几何条件的角度出发,该方法能合理地给出铰接角度 θ 的范围和仿形刀的长度范围。
At present,applying hinged joint of shields has become a common method for constructing curved tunnels.To operate a hinged joint of shield machines,it is necessary to be familiar with the operation methods of jack,profiling knife and hinged joint mechanism.However,given that these three devices have high collinearity when shield is carried out,it is difficult to obtain the only operating parameters at the same time.Therefore,a numerical method is proposed to determine the length and angle of the profiling cutter according to the geometric conditions under certain constraints.This paper presents an example of the application of the method in a 3D compound alignment.The numerical simulation results show that the range of hinge angle and the length range of profiling cutter can be reasonably given from the view of geometric conditions.
出处
《现代城市轨道交通》
2022年第3期55-59,共5页
Modern Urban Transit
关键词
盾构隧道
铰接式盾构机
仿形刀
铰接角
转向方法
shield tunnel
hinged joint of shield
profiling knife
hinge angle
steering method
作者简介
杨建伟(1991—),男,项目工程师。
