截齿滚动掘进冻土过程的影响因素数值模拟研究

张将令, 李小二, 陈新明, 焦华喆, 李振华

Study on numerical simulation of influencing factors for frozen soil excavation process by cutting pick rolling

Jiangling ZHANG, Xiao’er LI, Xinming CHEN, Huazhe JIAO, Zhenhua LI

表1 冻土本构模型参数

Table 1 Parameters of the frozen soil constitutive model

ρ/（kg·m^-3）	G/GPa	A	B	C	N	f ΄_c/MPa	T/MPa	${\dot{ε}}_{0}$ /s^-1	$\dot{ε} f_{m i n}$	S_max
2100	2	1.2	0.5	0.012	1.0	9	0.3	1.0	0.01	7.0
P_c/MPa	u_c	u_l	P_l/MPa	D₁	D₂	K₁/GPa	K₂/GPa	K₃/GPa	f_s
16.0	0.001	0.1	80	0.04	1.0	85	-171	208	0.004