为研究掘进参数对抽水蓄能电站斜井TBM出渣效率的影响，建立2种不同直径刀盘斜井TBM的出渣数值计算模型，分析不同推进速度和刀盘转速对刀盘排渣率和出渣速率的影响规律。结果表明： 1）当推进速度较小时，大直径刀盘排渣率高于小直径刀盘，随着推进速度的增大，小直径刀盘展现了更好的排渣效率，排渣率最高达80.02%； 2）大、小直径刀盘排渣率和排渣速率都随着刀盘转速增大呈现先上升后下降的趋势，2种直径刀盘分别在6 r/min和7
r/min时达到最大排渣率74.34%和79.82%； 3）相比于推进速度，刀盘转速对刀盘出渣效率的影响更大，刀盘转速过高会极大地降低刀盘的排渣率和出渣速率。因此，在采用TBM进行抽水蓄能电站斜井施工时，可以通过设置合理的掘进参数实现刀盘高效排渣。
To investigate the effect of tunneling parameters on
mucking efficiency of tunnel boring machine(TBM) in the construction of a
pumpedstorage power station inclined shaft, a numerical calculation model
of mucking of cutterheads with two different diameters is established. The
effect of different advancing speed and rotation speed of cutterhead on the
mucking efficiency and rate of the cutterhead is analyzed. The simulation
results reveal the following: (1) The mucking efficiency of the largediameter cutterhead is larger than that of the smalldiameter one. With an increase in advancing speed, the smalldiameter cutterhead shows a better mucking performance than the
largediameter one, and the mucking efficiency can
reach 80.02%. (2) The mucking efficiency and rate of both cutterheads increase
first and then decrease with increasing rotation speed of cutterhead. The largeand smalldiameter cutterheads achieve the
maximum mucking efficiency of 74.34% and 79.82% at rotation speed of 6 and 7
r/min, respectively. (3) Compared with the advancing speed, the rotation speed
of cutterhead has a greater effect on the mucking performance. The mucking
efficiency and rate would sharply decrease when the rotation speed of
cutterhead is too high. Therefore, in the construction of pumpedstorage power station inclined shaft with TBM, reasonable
operational parameters should be arranged to achieve efficient mucking of
cutterhead.
