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全断面岩石掘进机盘形滚刀与岩石的相互作用一直是领域学者研究的热点和难题.代表性研究成果是Ozdemir等学者通过盘形滚刀线性滚压破碎岩石的试验建立的盘形滚刀破岩力——推压力和滚动力计算公式,这与实际破岩过程中盘形滚刀和岩石的相互作用有较大差异,为此,本文通过建立盘形滚刀实际破岩运动模型,应用微位移矢量分析方法,导出了前倾安装盘形滚刀、传统安装盘形滚刀实际破岩运动中破岩点的位移,尤其是侧向位移和破岩点弧长的解析式.通过某实际工程用全断面岩石掘进机盘形滚刀算例发现:在盘形滚刀贯入度相同的条件下,前倾安装盘形滚刀破岩点侧向位移和破岩点弧长均小于传统安装盘形滚刀破岩点侧向位移和破岩点弧长,从而揭示了前倾安装盘形滚刀破岩力对岩石的作用效果明显好于传统安装盘形滚刀破岩力对岩石的作用效果.
The interaction between the disk cutter and the rock of full face rock tunnel boring machine has always been a hot and difficult topic in the field of research.Optimum research results are the disc cutter established by Ozdemir and other scholars through the disc rolling linear rolling crushing of rock Breaking rock-pushing force and rolling force formula, which is quite different from the interaction between the disc cutter and the rock during the actual rock breaking. Therefore, by establishing the actual breaking rock movement model of the disc cutter, Using the method of micro-displacement vector analysis, the displacements of rock breaking points, especially the lateral displacements and arc breaking lengths of rock breaking points during the actual breaking rock motions of the front-mounted disc cutter and the conventional installation disc cutter were deduced. A practical project with full face rock tunneling disc disc cutter example found: Disc disc hob penetration under the same conditions, the front-mounted disc cutter rock breaking point of lateral displacement and rock breaking arc length Which is smaller than the lateral displacement of the rock breaking point and the arc length of the rock breaking point in the conventional installation of the disc cutter, thus revealing that the rock breaking force of the disc rocker in the forward inclination installation is obviously better than that of the rock breaking force The effect of the rock.